Ready for 0.0.12 release.

navigating a file system.)

COPYING

@@ -0,0 +1,481 @@
+                  GNU LIBRARY GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
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+That's all there is to it!

Makefile.am

@@ -2,6 +2,94 @@ EXTRA_DIST	= mksymlinks.sh acsite.m4 acconfig.h
 
 SUBDIRS		= simgear
 
+#
+# Additional all, clean, and distclean rules for additional packages.
+# We can't just include the additional package dirs in SUBDIRS (which 
+# would be nice because there are then problems with make dist
+#
+
+all: 
+	@list='@subdirs@'; \
+	target=`echo $@`; \
+	for subdir in $$list; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    dot_seen=yes; \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	   || case "$$amf" in *=*) exit 1;; *k*) fail=yes;; *) exit 1;; esac; \
+	done
+
+install: 
+	@list='@subdirs@'; \
+	target=`echo $@`; \
+	for subdir in $$list; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    dot_seen=yes; \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	   || case "$$amf" in *=*) exit 1;; *k*) fail=yes;; *) exit 1;; esac; \
+	done
+
+clean: 
+	@list='@subdirs@'; \
+	target=`echo $@`; \
+	for subdir in $$list; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    dot_seen=yes; \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	   || case "$$amf" in *=*) exit 1;; *k*) fail=yes;; *) exit 1;; esac; \
+	done
+
+distclean: 
+	@list='@subdirs@'; \
+	target=`echo $@`; \
+	for subdir in $$list; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    dot_seen=yes; \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	   || case "$$amf" in *=*) exit 1;; *k*) fail=yes;; *) exit 1;; esac; \
+	done
+
+#
+# distclean the associated packages and include them in the dist
+#
+
+dist-hook:
+	tar cf - simgear/metar | (cd $(distdir); tar xvf -)
+	@list='@subdirs@'; \
+	target=distclean; \
+	for subdir in $$list; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    dot_seen=yes; \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	   || case "$$amf" in *=*) echo "distclean error ignored...";; *k*) fail=yes;; *) echo "distclean error ignored...";; esac; \
+	done
+	tar cf - simgear/metakit | (cd $(distdir); tar xvf -)
+	
+
 #
 # Rule to build RPM distribution package
 #
@@ -9,6 +97,3 @@ rpm: dist
 	cp $(PACKAGE)-$(VERSION).tar.gz /usr/src/packages/SOURCES
 	rpm -ba @PACKAGE@.spec
 
-dist-hook:
-	tar cf - simgear/metar | (cd $(distdir); tar xvf -)
-

NEWS

@@ -1,3 +1,20 @@
+New in 0.0.12
+* July 19, 2000
+* Converted project license from GPL to LGPL.
+* Moved low level IO (socket, file, serial) code over to SimGear.
+* Moved ephemeral code into simgear
+* Moved basic world time code into simgear
+* Added a property manager (registry)
+* Some documentation added.
+
+New in 0.0.11
+* July 3, 2000
+* Replaced gdbm with metakit
+* Added drop in sky (depends on plib)
+* Added spherical course and dist given two points calculations
+* MSVC5 fixes
+* Math/bucket/tiling tweaks from Norman Vine
+
 New in 0.0.7
 * March 29, 2000
 * Added support for RedHat package building contributed by Habibie 

README

@@ -0,0 +1,3 @@
+MSVC5 users:
+
+  Copy simgear/config.h.vc5 to simgear/config.h before building.

README.metakit

@@ -0,0 +1,243 @@
+With the author's permission, SimGear now bundles MetaKit.  MetaKit is
+ explained
+
+The MetaKit Library 2.01                                            March 2000
+==============================================================================
+
+
+WHAT IT IS - MetaKit is an embeddable database which runs on Unix, Windows,
+    Macintosh, and other platforms.  It lets you build applications which
+    store their data efficiently, in a portable way, and which will not need a
+    complex runtime installation.  In terms of the data model, MetaKit takes
+    the middle ground between RDBMS, OODBMS, and flat-file databases - yet it
+    is quite different from each of them.
+
+WHAT IT ISN'T - MetaKit is not: 1) multi-user/-threading, 2) scalable to
+    gigabytes, 3) proprietary software, 4) full of bugs, 5) just a toy.
+
+TECHNOLOGY - Everything is stored variable-sized yet with efficient positional
+    row access.  Changing an existing datafile structure is as simple as re-
+    opening it with that new structure.  All changes are transacted.  You can
+    mix and match software written in C++, Python, and Tcl.  Things can't get
+    much more flexible...
+
+CORE - The Metakit core library is written in C++.  It has a code footprint of
+    just over 100 Kb on Windows.  It can be used as DLL, or linked statically.
+    Debug builds include extensive assertion checks to catch problems early.
+
+PYTHON - The binding for Python is called "Mk4py".  It uses SCXX by Gordon
+    McMillan as C++ glue interface.  The source is in directory "python/".
+
+TCL/TK - The MK extension for Tcl is called "Mk4tcl".  It is being used in a
+    number of commercial projects, for in-house use as well as in commercially
+    distributed products.  The source is in directory "tcl/".
+
+LICENSE AND SUPPORT - MetaKit 2.01 is distributed as open source software (the
+    X/MIT-style license is at the end of this document).  Commercial support
+    is available through an Enterprise License, see the URL mentioned below.
+
+DOCUMENTATION - All documentation uses HTML.  The main page is "MetaKit.html",
+    which leads to the rest of the documentation in the "doc/" directory.
+
+WEBSITE URLS - The main pages on the world wide web, for news and downloads:
+    Homepage:       http://www.equi4.com/metakit/
+    Python news:    http://www.equi4.com/metakit/python.html
+    Tcl/Tk news:    http://www.equi4.com/metakit/tcl.html
+    License info:   http://www.equi4.com/metakit/license.html
+    Contact info:   http://www.equi4.com/contact.html
+
+
+INSTALLATION
+============
+
+Starting with this release, all platform builds and language bindings are now
+designed to work from a single common "builds/" directory.  It turns out to
+be impossible to keep build side-effects limited to *just* this directory
+(CodeWarrior can't be told where to place its temp data, and Visual C++ still
+alters a few files next to the project ".dsw" file, to name two offenders).
+
+UNIX
+
+    It is no longer advised to build the Unix code in the "unix/" directory.
+    Instead, you should perform the following steps:
+        % cd builds
+        % ../unix/configure
+        % make
+        % make test
+    And optionally (this only installs the core lib, not script extensions):
+        % make install
+
+    By switching to the "builds/" directory, you will keep the distribution
+    directory tree 100% unaltered.  All changes are made in this subdir, and
+    all final build results are left behind in this same subdir.
+
+    Nastiness: if you build Mk4tcl, please do a "make Mk4tcl.so" as well.
+    And if you intend to create the Python extension, do a "make Mk4py.so".
+    The "libmk4tcl.so.0.0.0" and "libMk4py.so.0.0.0" targets are bogus ones.
+
+    You will probably have to make changes in the makefile to locate the
+    proper includes and libs for Python (Tcl has been fixed, see "--with-tcl).
+    You probably only need to adjust "CXX_SWITCHES_PY" to find the headers.
+
+    To build with STL containers and strings, you can do the following:
+        make CXXFLAGS='-Dq4_STD' test   # add -O3 etc, as needed
+    This passes the test suite on Linux RedHat 5.2 with gcc 2.95-2.
+
+    See below for some platform-specific build notes.
+
+WINDOWS
+
+    There is a "win/" directory which contains subdirectories for a number of
+    compiler systems.  MetaKit has been built with many different compilers
+    in the past (Microsoft, Borland, Watcom, Symantec, Metrowerks, Optima),
+    but to preserve my sanity (there are 12 configurations for MSVC6 alone!),
+    I am limiting myself to MSVC6, MWCW5, Borland C++ Builder 4, and Cygwin.
+
+    The MS Visual C++ 6.0 project is "win/msvc60/mksrc.dsw", with subprojects
+    for the C++ demo (mkdemo), building dll's (mkdll), static libs (mklib),
+    regression tests (mktest), as well as Tcl (mktcl) and Python (mkpython).
+    It has been set up to place all intermediate files and final results in
+    the "builds/" subdirectory, even though you'll launch it from "win/".
+
+    To build with STL containers and strings under MSVC, define "q4_STD".
+    To build with MFC containers and strings under MSVC, define "q4_MFC".
+
+    The Metrowerks Codewarrior project is in the "mac/" directory, and can be
+    used to build both Mac and Windows versions (on either Mac *or* Windows).
+    The core libraries are built with "mac/cw5.mcp", demos / tests are built
+    with "cw5apps.mcp", Tcl is "cw5tcl.mcp", and Python is "cw5python.mcp".
+
+    The Borland C++ Builder projects have not yet been incorporated in this
+    release, but the "KitViewer" application is an example of how to use BCB.
+
+    The Cygwin build (B20.1 / gcc 2.95.2) is different, because it uses the
+    unix autoconf system, and must be launched as described above for UNIX.
+    I have upgraded to the latest development of libtool to be able to build
+    DLL's with Cygwin.  You can build the "-mno-cygwin" version by editing
+    the Makefile by hand and adding that option to CXXFLAGS.
+
+    Rob Bloodgood adds that the following GCC options are for maximum code
+    efficiency on x86 hardware: "-O2 -m486 -malign-loops=2 -malign-jumps=2".
+    I have not yet tried this myself, but am passing on the tip.
+
+MACINTOSH
+
+    The Mac version requires Metrowerks CodeWarrior 5.  See the info above
+    in the Windows section (MWCW is multi-platform).  The projects are all
+    located in the "mac/" folder, which is also where MWCW will place its own
+    "... Data" folders with intermediate results.  As with all other setups,
+    final results are made to end up in the "builds/" directory.
+
+    Static 68K builds appear to work fine, the 68K CFM variants will need
+    some more work (I couldn't get the libraries to export their symbols).
+
+
+PLATFORM-SPECIFIC NOTES
+=======================
+
+* Linux RH 5.2 / gcc 2.95.2
+
+    Builds with gcc 2.95.2 work out of the box.  The Tcl extension ends up as
+    ".libs/libmk4tcl.so.0.0.0" (to please libtool), and should be renamed to
+    "Mk4tcl.so".  Similarly, ".libs/libMk4py.so.0.0.0" is in fact the Python
+    extension, and *must* be renamed to "Mk4py.so" to call it from Python.
+
+    The core MK libs end up as ".libs/libmk4.a" and ".libs/libmk4.so.0.0.0".
+
+* Solaris 2.6 / gcc 2.8.1
+
+    The Solaris builds are nasty for several reasons:
+
+    - I do not own such a machine, and often have to make arrangements
+      (or fight limited space on one of the machines I can telnet to).
+    - The gcc 2.8.1 optimizer appears to be buggy, I have had to turn off
+      the default "-O3" flag to prevent compiler crashes (several files).
+      This problems appears to be resolved with gcc 2.95.
+    - Locking on Solaris (especially w.r.t NFS) remains a mystery to me.
+      The Tcl and Python extensions both use locking (the core not yet).
+      See tcl/Mk4tcl.cpp around line 520, and python/PyStorage.cpp around
+      line 80 for details.  It's all pretty messy, and not 100% correct.
+
+    Despite this, I'm doing my best to resolve these issues.  Having a solid
+    build of the core *and* of Tcl / Python extensions is quite important.
+
+* Other Unix systems
+
+    No further notes, though many systems will build fine out of the box.
+
+* Windows
+
+    MSVC 6 builds MK as static lib and as DLL (universal config, I have not
+    yet created build versions with MFC or STL, mainly because MK can now be
+    used in all contexts regardless of how it was built).  The Python and Tcl
+    extensions build as dynamic extensions (a static build is easy to add).
+
+    MWCW 5 builds MK as static lib and as DLL (interestingly enough, the DLL
+    is slightly smaller than MSVC 6 - 102 vs 108 Kb - when their runtimes are
+    linked in dynamically as well).  I have not added Win builds for Tcl or
+    Python, since MSVC 6 has those already.
+
+    Cygwin B20.1, with gcc 2.95.2 ugrade, also builds MK as static lib and as
+    DLL.  Both "pure" Cygwin (i.e. requiring cygwin1.dll) and mingw32 (using
+    the -mno-cygwin flag) build, but there are some hairy include issues when
+    it comes to choosing the right locking model for Tcl and Python.  These
+    issues have not been resolved fully.
+
+* Macintosh
+
+    MWCW 5 builds PPC shared libs, PPC static libs, and 68K static libraries.
+
+    Building 68K CFM libraries leads to a "MetaKit 68K.shlb" which comes out
+    of the linker without errors, but the result does not seem to have any
+    export symbols defined (despite the fact that the library is over 200 K).
+    Because of that, I've been unable to build apps or Mk4tcl/Mk4py so far.
+
+    The other three configurations build, but for some reason MK's regression
+    test stops at L03 (everything up to that point looks ok, i.e. over 90%).
+
+    The Mk4tcl PPC extension appears to work (quick manual test), and so does
+    the Python extension, "Mk4py.PPC.slb".  I have not yet given these two
+    a serious workout, hoping to have a basic test harness in place soon.
+
+* VMS, BeOS, ...
+
+    No news yet, please report your findings with any other platform builds.
+
+
+WHAT'S MISSING HERE
+===================
+
+    - a section on basic concepts (or maybe it doesn't belong here?)
+    - a section on getting started (C++, Python, Tcl all differ - point to
+      the respective intro pages)
+    - maybe a small sample for each of C++ / Tcl / Python, to give an idea
+    - mention TclKit, scripted docs (WiKit/Tequila?), VFS?
+    - I forgot... please tell me :)
+
+
+LICENSE AND COPYRIGHT STATEMENT
+===============================
+
+Copyright (c) 1996-2000 Jean-Claude Wippler
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+
+
+==============================================================================
+-- Jean-Claude Wippler <jcw@equi4.com>

Thanks

@@ -0,0 +1,184 @@
+A very special thanks is due to the following people and groups.
+
+Note: as hard as we've tried, it is impossible to perfectly maintain
+this file.  If you are aware of someone who you think should be
+included here, PLEASE let me know.  Projects like this are made
+possible only by the help and hard work of others.  I want to properly
+credit everyone who has contributed to this project.
+
+
+Raul Alonzo <amil@las.es>
+  Mr. Alonzo is the author of Ssystem and provided his kind permission 
+  for using the moon texture. I also used parts of his code as a template
+  when adding the texture.  Ssystem Homepage can be found at:
+  http://www1.las.es/~amil/ssystem
+
+
+Paul Bleisch <pbleisch@acm.org>
+  Paul redid the "debug" system so that it would be much more flexible,
+  so it could be easily disabled for production system, and so that 
+  messages for certain subsystems could be selectively enabled.
+  Also contributed a first stab at a config file/command line parsing
+  system.
+
+
+Bernie Bright <bbright@c031.aone.net.au>
+  Many C++ style, usage, and implementation improvements.  
+  STL portability, tons o' stuff. :-)
+  Currently trying to get a BeOS port together but life keeps getting 
+  in the way!
+
+
+Gene Buckle <geneb@deltasoft.com>
+  Gene has done a lot of work getting FG to compile with the MSVC++
+  compiler.  Also, he has pushed, proded, and bugged me endlessly to
+  do my stuff right.  (I mean that in a good way, because sometimes
+  when the little nudge in the right direction isn't working, I need
+  a good hard shove.) :-)
+
+
+John Check <j4strngs@rockfish.net>
+  Cloud textures
+
+
+Jean-Francois Doue
+  Vector 2D, 3D, 4D and Matrix 3D and 4D inlined C++ classes.  (Based on
+  Graphics Gems IV ed. Paul S. Heckbert)
+  http://www.animats.com/simpleppp/ftp/public_html/topics/developers.html
+
+
+Bruce Finney <bfinney@gte.net>
+  MSVC5 compatibility.
+
+
+Jean-loup Gailly and Mark Adler <zlib@gzip.org>
+  Authors of the zlib library.  Used for on-the-fly compression and
+  decompression routines.
+  http://www.cdrom.com/pub/infozip/zlib/
+
+
+Thomas Gellekum <tg@ihf.rwth-aachen.de>
+  Changes and updates for compiling on FreeBSD
+
+
+Habibie <habibie@MailandNews.com>
+  RedHat package building changes for SimGear.
+
+
+Bruce Jackson of NASA <e.b.jackson@larc.nasa.gov> 
+  Developed the LaRCsim code under funding by NASA which we use to provide
+  the flight model. Bruce has patiently answered my many, many questions.
+  http://dcb.larc.nasa.gov/www/DCBStaff/ebj/ebj.html
+
+
+Richard Kaszeta <bofh@me.umn.edu>
+  Contributed screen buffer to ppm screen shot routine.
+  Rich has also helped in the early development of the Flight Gear "altitude 
+  hold autopilot module" by teaching Curt Olson the basics of Control Theory 
+  and helping him code and debug early versions. Curt's "Boss" Bob Hain
+  also contributed <bob@me.umn.edu>.  Further details available at:
+  http://www.menet.umn.edu/~curt/fgfs/Docs/Autopilot/AltitudeHold/AltitudeHold.html
+  Rich's Homepage: http://www.menet.umn.edu/~kaszeta
+
+
+Tom Knienieder <tom@knienieder.com>
+  Ported Steve's Audio library first to OpenBSD and IRIX and
+  after that also to Win32
+
+
+David Megginson <david@megginson.com>
+  SimGear property manager/registry
+
+
+Curt Olson <curt@flightgear.org>
+  Curt is responsible for overall project and source code management.
+  He has his hands in many of the areas.
+
+
+Petter Reinholdtsen <pere@games.no>
+  Incorporated the Gnu automake/autoconf system (with libtool).
+  This should streamline and standardize the build process for all
+  Unix-like platforms.  It should have little effect on IDE type 
+  environments since the don't use the Unix make system.
+
+
+Paul Schlyter <pausch@saaf.se>  
+  Mr. Schlyter provided Durk Talsma with all the information 
+  he needed to write the astro code. Mr. S. is also willing 
+  to answer astro-related questions whenever one needs to.
+  http://welcome.to/pausch
+
+
+Durk Talsma <d.talsma@chello.nl>
+  Accurate Sun, Moon, and Planets. 
+  Sun changes color based on position in sky.
+  Moon has correct phase and blends well into the sky.
+  Planets are correctly positioned and have proper magnitude.
+  Added time zone support in the SGTime class.
+  Help with time functions, gui, and other misc stuff.
+  http://people.a2000.nl/dtals
+
+
+Mark Vallevand <Mark.Vallevand@UNISYS.com>
+  Contributed some METAR parsing code.
+  Contributed some win32 screen printing routines.
+
+
+Gary R. Van Sickle <tiberius@braemarinc.com>
+  Contributed some initial GameGLUT support and other fixes.
+  Has done some interesting preliminary work on a binary file format
+  http://www.woodsoup.org/projs/ORKiD/fgfs.htm
+
+  Has set up a 'Cygwin Tips' site that has been very helpful to many 
+  people in getting a Cygwin Unix-on-Windows build environment set up
+  so they can build FG effectively. 
+  http://www.woodsoup.org/projs/ORKiD/cygwin.htm
+
+
+Norman Vine <nhv@yahoo.com>
+  Provided more than uncountable URL's to the "FlightGear Community".
+  Many performance optimizations throughout the code.  
+  Lots of windoze related contributions.
+  Contributed wgs84 distance and course routines.
+  Contributed a great circle route autopilot mode based on wgs84 routines.
+
+
+Ed Williams <Ed_Williams@compuserve.com>
+  Contributed magnetic variation code (impliments Nima WMM 2000)
+  We've also borrowed from Ed's wonderful aviation formulary at various
+  times as well.
+  http://www.best.com/~williams/index.html
+
+
+Jean-Claude Wippler <jcw@equi4.com>
+  Author of MetaKit - a portable, embeddible database with a portable
+  data file format.  This software is not GPL'd but the author is kindly
+  allowing us to bundle MetaKit with our code.  MetaKit has a liberal
+  X/MIT-style license.  Please see the following URL for more info:
+  http://www.equi4.com/metakit
+
+
+WoodSoup Project  http://www.woodsoup.org
+  Provided computing resources and services so that the Flight Gear 
+  project could have real home.  This includes, web services, 
+  ftp services, shell accounts, email lists, dns services, etc.
+
+
+Robert Allan Zeh <raz@cmg.FCNBD.COM>
+  Helped me tremendously in figuring out the Cygnus win32 compiler and
+  how to link with .dll's.  With out him the first runable win32
+  version of FG would have been impossible.
+
+
+
+NOTE:
+----
+
+THIS DOCUMENT WAS INITIALLY WRITTEN BY 
+Curt L. Olson  <curt@flightgear.org>
+
+
+05 Jul 2000 Removed non-SimGear entries (CLO)
+
+08 Mar 2000 CONTENTS RESEARCHED AND UPDATED by 
+            Oliver Delise  <delise@mail.isis.de>

acconfig.h

@@ -182,7 +182,7 @@
 #undef HAVE_WAIT3
 
 /* Define if you have gdbm installed system wide.  */
-#undef HAVE_GDBM
+/* #undef HAVE_GDBM */
 
 /* Define if you have zlib installed system wide.  */
 #undef HAVE_ZLIB

configure.in

@@ -6,7 +6,7 @@ dnl $Id$
 AC_INIT(simgear/bucket/newbucket.cxx)
 
 dnl Initialize the automake stuff
-AM_INIT_AUTOMAKE(SimGear, 0.0.7)
+AM_INIT_AUTOMAKE(SimGear, 0.0.12)
 
 dnl Checks for programs.
 AC_PROG_MAKE_SET
@@ -24,11 +24,6 @@ else
 fi
 
 
-dnl Run configure in the gdbm subdir
-dnl AC_CONFIG_SUBDIRS( simgear/gdbm )
-
-
-dnl Specify if we want logging (testing build) or not (release build)
 # set logging default value
 # with_logging=yes
 AC_ARG_WITH(logging, [  --with-logging          Include logging output (default)])
@@ -200,14 +195,26 @@ if test "x$ac_cv_header_plib_pu_h" != "xyes"; then
     exit
 fi
 
-dnl Check for system installed gdbm
-AC_CHECK_HEADER(gdbm.h)
-if test "x$ac_cv_header_gdbm_h" = "xyes"; then
-    AC_DEFINE( HAVE_GDBM )
-else
-    echo "no gdbm found, configuring and building."
+# dnl Check for system installed gdbm
+# AC_CHECK_HEADER(gdbm.h)
+# if test "x$ac_cv_header_gdbm_h" = "xyes"; then
+#     AC_DEFINE( HAVE_GDBM )
+# else
+#     echo "no gdbm found, configuring and building."
+# fi
+# AM_CONDITIONAL(HAVE_GDBM, test "x$ac_cv_header_gdbm_h" = "xyes" )
+
+dnl Check for system installed metakit
+AC_CHECK_HEADER(mk4.h)
+if test "x$ac_cv_header_mk4_h" != "xyes"; then
+    echo "no metakit found, configuring and building."
+    # Run configure in the metakit subdir
+    AC_CONFIG_SUBDIRS( simgear/metakit/unix )
 fi
-AM_CONDITIONAL(HAVE_GDBM, test "x$ac_cv_header_gdbm_h" = "xyes" )
+AM_CONDITIONAL(HAVE_METAKIT, test "x$ac_cv_header_mk4_h" = "xyes" )
+
+
+dnl Specify if we want logging (testing build) or not (release build)
 
 dnl Check for system installed zlib
 AC_CHECK_HEADER(zlib.h)
@@ -245,17 +252,24 @@ AC_OUTPUT( \
 	simgear/version.h \
 	simgear/bucket/Makefile \
 	simgear/debug/Makefile \
-	simgear/gdbm/Makefile \
+	simgear/ephemeris/Makefile \
+	simgear/io/Makefile \
 	simgear/magvar/Makefile \
 	simgear/math/Makefile \
 	simgear/misc/Makefile \
 	simgear/screen/Makefile \
 	simgear/serial/Makefile \
+	simgear/sky/Makefile \
+	simgear/timing/Makefile \
 	simgear/xgl/Makefile \
 	simgear/zlib/Makefile \
 )
 
-# AC_OUTPUT_COMMANDS([./mksymlinks.sh])
+AC_OUTPUT_COMMANDS([
+#	if test "x$ac_cv_header_windows_h" = "xyes" ; then
+#		cp simgear/gdbm/autoconf.h.cygwin32 simgear/gdbm/autoconf.h
+#	fi
+])
 
 echo ""
 echo "Configure Summary"
@@ -275,8 +289,12 @@ else
     echo "Electric fence: no"
 fi
 
-if test "x$ac_cv_header_gdbm_h" != "xyes"; then
-   echo "Building gdbm"
+# if test "x$ac_cv_header_gdbm_h" != "xyes"; then
+#    echo "Building gdbm"
+# fi
+
+if test "x$ac_cv_header_mk4_h" != "xyes"; then
+   echo "Building metakit"
 fi
 
 if test "x$ac_cv_header_zlib_h" != "xyes"; then

simgear/Makefile.am

@@ -4,11 +4,11 @@ else
 SERIAL_DIRS =
 endif
 
-if HAVE_GDBM
-GDBM_DIRS =
-else
-GDBM_DIRS = gdbm
-endif
+# if HAVE_GDBM
+# GDBM_DIRS =
+# else
+# GDBM_DIRS = gdbm
+# endif
 
 if HAVE_ZLIB
 ZLIB_DIRS =
@@ -21,18 +21,22 @@ METAR_DIRS =
 
 EXTRA_DIST = version.h.in
 
-include_HEADERS = compiler.h constants.h fg_traits.hxx fg_zlib.h version.h
+include_HEADERS = \
+	compiler.h constants.h fg_traits.hxx fg_zlib.h inlines.h version.h
 
 SUBDIRS = \
 	bucket \
 	debug \
-	$(GDBM_DIRS) \
+	ephemeris \
+	io \
 	magvar \
 	math \
 	$(METAR_DIRS) \
 	misc \
 	screen \
 	$(SERIAL_DIRS) \
+	sky \
+	timing \
 	xgl \
 	$(ZLIB_DIRS)
 

simgear/bucket/newbucket.cxx

@@ -5,19 +5,20 @@
  *
  * Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/

simgear/bucket/newbucket.hxx

@@ -5,19 +5,20 @@
  *
  * Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
@@ -73,7 +74,7 @@ private:
     int y;          // y subdivision (0 to 7)
 
 public:
-    
+
     // default constructor
     FGBucket();
 
@@ -90,6 +91,10 @@ public:
 
     // Set the bucket params for the specified lat and lon
     void set_bucket( double dlon, double dlat );
+    void set_bucket( double *lonlat ) {
+	set_bucket( lonlat[0], lonlat[1] );
+    }	
+
     void make_bad ( void );
 
     // Generate the unique scenery tile index for this bucket
@@ -227,7 +232,7 @@ inline FGBucket::FGBucket(const bool is_good) {
 	lon = -1000;
     }
 }
-    
+
 
 // Parse a unique scenery tile index and find the lon, lat, x, and y
 inline FGBucket::FGBucket(const long int bindex) {
@@ -236,11 +241,11 @@ inline FGBucket::FGBucket(const long int bindex) {
     lon = index >> 14;
     index -= lon << 14;
     lon -= 180;
-    
+
     lat = index >> 6;
     index -= lat << 6;
     lat -= 90;
-    
+
     y = index >> 3;
     index -= y << 3;
 
@@ -310,9 +315,9 @@ inline double FGBucket::get_height() const {
 // create an impossible bucket
 inline void FGBucket::make_bad( void ) {
     set_bucket(0.0, 0.0);
-	lon = -1000;
+    lon = -1000;
 }
-    
+
 
 // offset a bucket struct by the specified tile units in the X & Y
 // direction
@@ -323,12 +328,6 @@ FGBucket fgBucketOffset( double dlon, double dlat, int x, int y );
 void fgBucketDiff( const FGBucket& b1, const FGBucket& b2, int *dx, int *dy );
 
 
-/*
-// Given a lat/lon, fill in the local tile index array
-void fgBucketGenIdxArray(fgBUCKET *p1, fgBUCKET *tiles, int width, int height);
-*/
-
-
 inline ostream&
 operator<< ( ostream& out, const FGBucket& b )
 {

simgear/compiler.h

@@ -1,19 +1,20 @@
 /**************************************************************************
  * compiler.h -- C++ Compiler Portability Macros
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
@@ -127,7 +128,10 @@
 // Microsoft compilers.
 //
 #ifdef _MSC_VER
-#  if _MSC_VER == 1200 // msvc++ 6.0
+#  define bcopy(from, to, n) memcpy(to, from, n)
+#  define FG_MEM_COPY(to,from,n) memcpy(to, from, n)
+
+#  if _MSC_VER == 1200  // msvc++ 6.0
 #    define FG_NAMESPACES
 #    define FG_HAVE_STD
 #    define FG_HAVE_STD_INCLUDES
@@ -147,7 +151,25 @@
 #    pragma warning(disable: 4305) //
 
 #  elif _MSC_VER == 1100 // msvc++ 5.0
-#    error MSVC++ 5.0 still to be supported...
+#    define NEEDNAMESPACESTD
+#    define FG_NAMESPACES
+#    define FG_HAVE_STD
+#    define FG_HAVE_STD_INCLUDES
+#    define FG_HAVE_STREAMBUF
+
+#    define STL_ALGORITHM  <algorithm>
+#    define STL_FUNCTIONAL <functional>
+#    define STL_IOMANIP    <iomanip>
+#    define STL_IOSTREAM   <iostream>
+#    define STL_FSTREAM    <fstream>
+#    define STL_STDEXCEPT  <stdexcept>
+#    define STL_STRING     <string>
+#    define STL_STRSTREAM  <strstream>
+
+#    pragma warning(disable: 4786) // identifier was truncated to '255' characters
+#    pragma warning(disable: 4244) // conversion from double to float
+#    pragma warning(disable: 4305) //
+
 #  else
 #    error What version of MSVC++ is this?
 #  endif

simgear/config.h.in

@@ -47,9 +47,6 @@
 /* Define if you have the vprintf function.  */
 #undef HAVE_VPRINTF
 
-/* Define if you have gdbm installed system wide.  */
-#undef HAVE_GDBM
-
 /* Define if you have zlib installed system wide.  */
 #undef HAVE_ZLIB
 

simgear/config.h.vc5

@@ -1,58 +1,19 @@
-/* simgear/config.h.  Generated automatically by configure.  */
-/* simgear/config.h.in.  Generated automatically from configure.in by autoheader.  */
-
-/* Define to empty if the keyword does not work.  */
-/* #undef const */
-
-/* Define if you don't have vprintf but do have _doprnt.  */
-/* #undef HAVE_DOPRNT */
-
-/* Define if you have the vprintf function.  */
-#define HAVE_VPRINTF 1
-
-/* Define as the return type of signal handlers (int or void).  */
-#define RETSIGTYPE void
-
-/* Define to `unsigned' if <sys/types.h> doesn't define.  */
-/* #undef size_t */
-
-/* Define if you have the ANSI C header files.  */
-#define STDC_HEADERS 1
-
-/* Define if you can safely include both <sys/time.h> and <time.h>.  */
-#define TIME_WITH_SYS_TIME 1
-
-/* Define if your <sys/time.h> declares struct tm.  */
-/* #undef TM_IN_SYS_TIME */
+/* Include/config.h.  Generated for MSCV++ 5.0  */
 
 /* Define if the X Window System is missing or not being used.  */
-/* #undef X_DISPLAY_MISSING */
+#define X_DISPLAY_MISSING 1
 
 /* Define to empty if the keyword does not work.  */
 /* #undef const */
 
-   
-/* Define to eliminate all trace of debugging messages such as for a 
-   release build */
-/* #undef FG_NDEBUG */
-
-   
-/* Define to enable 3dfx/glide render in a window hack under unix.
-   This probably won't work under windows. */
-/* #undef XMESA */
-/* #undef FX */
-
 /* Define if you don't have vprintf but do have _doprnt.  */
 /* #undef HAVE_DOPRNT */
 
 /* Define if you have the vprintf function.  */
 #define HAVE_VPRINTF 1
 
-/* Define if you have gdbm installed system wide.  */
-#define HAVE_GDBM 1
-
-/* Define if you have zlib installed system wide.  */
-#define HAVE_ZLIB 1
+/* Define to package name */
+#define PACKAGE "FlightGear"
 
 /* Define as the return type of signal handlers (int or void).  */
 #define RETSIGTYPE void
@@ -64,37 +25,31 @@
 #define STDC_HEADERS 1
 
 /* Define if you can safely include both <sys/time.h> and <time.h>.  */
-#define TIME_WITH_SYS_TIME 1
+/* #undef TIME_WITH_SYS_TIME */
 
 /* Define if your <sys/time.h> declares struct tm.  */
-/* #undef TM_IN_SYS_TIME */
+/* #define TM_IN_SYS_TIME 1 */
+
+/* Define to version number */
+#define VERSION "0.0.8"
 
 /* Define if compiling on a Winbloze (95, NT, etc.) platform */
-/* #undef WIN32 */
-
-/* Define if the X Window System is missing or not being used.  */
-/* #undef X_DISPLAY_MISSING */
+#define WIN32 1
 
 /* Define if you have the GetLocalTime function.  */
-/* #undef HAVE_GETLOCALTIME */
-
-/* Define if you have the bcopy function.  */
-#define HAVE_BCOPY 1
+#define HAVE_GETLOCALTIME 1
 
 /* Define if you have the ftime function.  */
-#define HAVE_FTIME 1
+/* #define HAVE_FTIME 1 */
 
 /* Define if you have the getitimer function.  */
-#define HAVE_GETITIMER 1
+/* #define HAVE_GETITIMER 1 */
 
 /* Define if you have the getrusage function.  */
-#define HAVE_GETRUSAGE 1
+/* #define HAVE_GETRUSAGE 1 */
 
 /* Define if you have the gettimeofday function.  */
-#define HAVE_GETTIMEOFDAY 1
-
-/* Define if you have the memcpy function.  */
-#define HAVE_MEMCPY 1
+/* #define HAVE_GETTIMEOFDAY 1 */
 
 /* Define if you have the mktime function.  */
 #define HAVE_MKTIME 1
@@ -106,10 +61,10 @@
 #define HAVE_RANDOM 1
 
 /* Define if you have the rint function.  */
-#define HAVE_RINT 1
+/* #define HAVE_RINT 1 */
 
 /* Define if you have the setitimer function.  */
-#define HAVE_SETITIMER 1
+/* #define HAVE_SETITIMER 1 */
 
 /* Define if you have the signal function.  */
 #define HAVE_SIGNAL 1
@@ -117,83 +72,71 @@
 /* Define if you have the strstr function.  */
 #define HAVE_STRSTR 1
 
-/* Define if you have the timegm function.  */
-#define HAVE_TIMEGM 1
-
 /* Define if you have the <fcntl.h> header file.  */
 #define HAVE_FCNTL_H 1
 
 /* Define if you have the <getopt.h> header file.  */
-#define HAVE_GETOPT_H 1
+/* #define HAVE_GETOPT_H 1 */
 
 /* Define if you have the <malloc.h> header file.  */
 #define HAVE_MALLOC_H 1
 
-/* Define if you have the <memory.h> header file.  */
-#define HAVE_MEMORY_H 1
-
 /* Define if you have the <stdlib.h> header file.  */
 #define HAVE_STDLIB_H 1
 
-/* Define if you have the <sys/param.h> header file.  */
-#define HAVE_SYS_PARAM_H 1
-
-/* Define if you have the <sys/stat.h> header file.  */
-#define HAVE_SYS_STAT_H 1
-
 /* Define if you have the <sys/time.h> header file.  */
-#define HAVE_SYS_TIME_H 1
+/* #define HAVE_SYS_TIME_H 1 */
 
 /* Define if you have the <sys/timeb.h> header file.  */
 #define HAVE_SYS_TIMEB_H 1
 
 /* Define if you have the <unistd.h> header file.  */
-#define HAVE_UNISTD_H 1
+/* #define HAVE_UNISTD_H 1 */
 
 /* Define if you have the <values.h> header file.  */
-#define HAVE_VALUES_H 1
+/* #define HAVE_VALUES_H 1 */
 
 /* Define if you have the <winbase.h> header file.  */
-/* #undef HAVE_WINBASE_H */
+#define HAVE_WINBASE_H 1
 
 /* Define if you have the <windows.h> header file.  */
-/* #undef HAVE_WINDOWS_H */
+#define HAVE_WINDOWS_H 1
 
 /* Define if you have the GL library (-lGL).  */
 #define HAVE_LIBGL 1
 
 /* Define if you have the GLU library (-lGLU).  */
-/* #undef HAVE_LIBGLU */
+#define HAVE_LIBGLU 1
 
 /* Define if you have the GLcore library (-lGLcore).  */
 /* #undef HAVE_LIBGLCORE */
 
 /* Define if you have the ICE library (-lICE).  */
-#define HAVE_LIBICE 1
+/* #define HAVE_LIBICE 1 */
 
 /* Define if you have the MesaGL library (-lMesaGL).  */
 /* #undef HAVE_LIBMESAGL */
 
 /* Define if you have the MesaGLU library (-lMesaGLU).  */
-#define HAVE_LIBMESAGLU 1
+/* #undef HAVE_LIBMESAGLU */
 
 /* Define if you have the SM library (-lSM).  */
-#define HAVE_LIBSM 1
+/* #define HAVE_LIBSM 1 */
 
 /* Define if you have the X11 library (-lX11).  */
-#define HAVE_LIBX11 1
+/* #define HAVE_LIBX11 1 */
 
 /* Define if you have the Xext library (-lXext).  */
-#define HAVE_LIBXEXT 1
+/* #define HAVE_LIBXEXT 1 */
 
 /* Define if you have the Xi library (-lXi).  */
-#define HAVE_LIBXI 1
+/* #define HAVE_LIBXI 1 */
 
 /* Define if you have the Xmu library (-lXmu).  */
-#define HAVE_LIBXMU 1
+/* #define HAVE_LIBXMU 1 */
 
 /* Define if you have the Xt library (-lXt).  */
-#define HAVE_LIBXT 1
+/* #define HAVE_LIBXT 1 */
 
 /* Define if you have the glut library (-lglut).  */
 #define HAVE_LIBGLUT 1
@@ -204,9 +147,8 @@
 /* Define if you have the socket library (-lsocket).  */
 /* #undef HAVE_LIBSOCKET */
 
-/* Name of package */
-#define PACKAGE "SimGear"
+/* Define if you have the <memory.h> header file.  */
+#define HAVE_MEMORY_H 1
 
-/* Version number of package */
-#define VERSION "0.0.7"
+#define HAVE_MEMCPY 1
 

simgear/constants.h

@@ -4,25 +4,26 @@
 //
 // Copyright (C) 2000  Curtis L. Olson  - curt@flightgear.org
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 
 
-#ifndef _SUPPORTGEAR_CONSTANTS_H
-#define _SUPPORTGEAR_CONSTANTS_H
+#ifndef _SG_CONSTANTS_H
+#define _SG_CONSTANTS_H
 
 
 #ifdef HAVE_CONFIG_H
@@ -140,4 +141,4 @@
 #define FG_EPSILON 0.0000001
 
 
-#endif // _SUPPORTGEAR_CONSTANTS_H
+#endif // _SG_CONSTANTS_H

simgear/debug/logstream.cxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1998  Bernie Bright - bbright@c031.aone.net.au
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/debug/logstream.hxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1998  Bernie Bright - bbright@c031.aone.net.au
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/ephemeris/Makefile.am

@@ -1,18 +1,34 @@
-noinst_LIBRARIES = libEphemeris.a
+includedir = @includedir@/ephemeris
 
-libEphemeris_a_SOURCES = \
-	celestialBody.cxx celestialBody.hxx \
-	ephemeris.cxx ephemeris.hxx \
-	jupiter.cxx jupiter.hxx \
-	mars.cxx mars.hxx \
-	mercury.cxx mercury.hxx \
-	moon.cxx moon.hxx \
-	neptune.cxx neptune.hxx \
+lib_LIBRARIES = libsgephem.a
+
+include_HEADERS = \
+	celestialBody.hxx \
+        ephemeris.hxx \
+	jupiter.hxx \
+	mars.hxx \
+	mercury.hxx \
+	moon.hxx \
+	neptune.hxx \
+	saturn.hxx \
+	star.hxx \
+	stars.hxx \
+	uranus.hxx \
+	venus.hxx
+
+libsgephem_a_SOURCES = \
+	celestialBody.cxx \
+	ephemeris.cxx \
+	jupiter.cxx \
+	mars.cxx \
+	mercury.cxx \
+	moon.cxx \
+	neptune.cxx \
 	pluto.hxx \
-	saturn.cxx saturn.hxx \
-	star.cxx star.hxx \
-	stars.cxx stars.hxx \
-	uranus.cxx uranus.hxx \
-	venus.cxx venus.hxx
+	saturn.cxx \
+	star.cxx \
+	stars.cxx \
+	uranus.cxx \
+	venus.cxx
 
-INCLUDES += -I$(top_builddir) -I$(top_builddir)/src
+INCLUDES += -I$(top_builddir)

simgear/ephemeris/celestialBody.cxx

@@ -5,19 +5,20 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
@@ -34,7 +35,7 @@
 
 
 /**************************************************************************
- * void CelestialBody::updatePosition(fgTIME *t, Star *ourSun)
+ * void CelestialBody::updatePosition(double mjd, Star *ourSun)
  *
  * Basically, this member function provides a general interface for 
  * calculating the right ascension and declinaion. This function is 
@@ -45,25 +46,25 @@
  * position is calculated an a slightly different manner.  
  *
  * arguments:
- * fgTIME t: provides the current time.
+ * double mjd: provides the modified julian date.
  * Star *ourSun: the sun's position is needed to convert heliocentric 
  *               coordinates into geocentric coordinates.
  *
  * return value: none
  *
  *************************************************************************/
-void CelestialBody::updatePosition(FGTime *t, Star *ourSun)
+void CelestialBody::updatePosition(double mjd, Star *ourSun)
 {
   double eccAnom, v, ecl, actTime, 
     xv, yv, xh, yh, zh, xg, yg, zg, xe, ye, ze;
 
-  updateOrbElements(t);
-  actTime = fgCalcActTime(t);
+  updateOrbElements(mjd);
+  actTime = sgCalcActTime(mjd);
 
   // calcualate the angle bewteen ecliptic and equatorial coordinate system
   ecl = DEG_TO_RAD * (23.4393 - 3.563E-7 *actTime);
   
-  eccAnom = fgCalcEccAnom(M, e);  //calculate the eccentric anomaly
+  eccAnom = sgCalcEccAnom(M, e);  //calculate the eccentric anomaly
   xv = a * (cos(eccAnom) - e);
   yv = a * (sqrt (1.0 - e*e) * sin(eccAnom));
   v = atan2(yv, xv);           // the planet's true anomaly
@@ -110,7 +111,7 @@ void CelestialBody::updatePosition(FGTime *t, Star *ourSun)
 };
 
 /****************************************************************************
- * double CelestialBody::fgCalcEccAnom(double M, double e)
+ * double CelestialBody::sgCalcEccAnom(double M, double e)
  * this private member calculates the eccentric anomaly of a celestial body, 
  * given its mean anomaly and eccentricity.
  * 
@@ -135,7 +136,7 @@ void CelestialBody::updatePosition(FGTime *t, Star *ourSun)
  * the eccentric anomaly
  *
  ****************************************************************************/
-double CelestialBody::fgCalcEccAnom(double M, double e)
+double CelestialBody::sgCalcEccAnom(double M, double e)
 {
   double 
     eccAnom, E0, E1, diff;

simgear/ephemeris/celestialBody.hxx

@@ -5,19 +5,20 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
@@ -33,8 +34,6 @@
 
 #include <simgear/constants.h>
 
-#include <Time/fg_time.hxx>
-
 class Star;
 
 class CelestialBody
@@ -61,9 +60,9 @@ protected:              // make the data protected, in order to give the
   double magnitude;
   double lonEcl, latEcl;
 
-  double fgCalcEccAnom(double M, double e);
-  double fgCalcActTime(FGTime *t);
-  void updateOrbElements(FGTime *t);
+  double sgCalcEccAnom(double M, double e);
+  double sgCalcActTime(double mjd);
+  void updateOrbElements(double mjd);
 
 public:
   CelestialBody(double Nf, double Ns,
@@ -71,7 +70,7 @@ public:
 		double wf, double ws,
 		double af, double as,
 		double ef, double es,
-		double Mf, double Ms, FGTime *t);
+		double Mf, double Ms, double mjd);
   CelestialBody(double Nf, double Ns,
 		double If, double Is,
 		double wf, double ws,
@@ -85,7 +84,7 @@ public:
   double getMagnitude();
   double getLon();
   double getLat(); 
-  void updatePosition(FGTime *t, Star *ourSun);
+  void updatePosition(double mjd, Star *ourSun);
 };
 
 /*****************************************************************************
@@ -113,7 +112,7 @@ inline CelestialBody::CelestialBody(double Nf, double Ns,
 				    double wf, double ws,
 				    double af, double as,
 				    double ef, double es,
-				    double Mf, double Ms, FGTime *t)
+				    double Mf, double Ms, double mjd)
 {
   NFirst = Nf;     NSec = Ns;
   iFirst = If;     iSec = Is;
@@ -121,7 +120,7 @@ inline CelestialBody::CelestialBody(double Nf, double Ns,
   aFirst = af;     aSec = as;
   eFirst = ef;     eSec = es;
   MFirst = Mf;     MSec = Ms;
-  updateOrbElements(t);
+  updateOrbElements(mjd);
 };
 
 inline CelestialBody::CelestialBody(double Nf, double Ns,
@@ -140,17 +139,17 @@ inline CelestialBody::CelestialBody(double Nf, double Ns,
 };
 
 /****************************************************************************
- * inline void CelestialBody::updateOrbElements(FGTime *t)
+ * inline void CelestialBody::updateOrbElements(double mjd)
  * given the current time, this private member calculates the actual 
  * orbital elements
  *
- * Arguments: FGTime *t: the current time:
+ * Arguments: double mjd: the current modified julian date:
  *
  * return value: none
  ***************************************************************************/
-inline void CelestialBody::updateOrbElements(FGTime *t)
+inline void CelestialBody::updateOrbElements(double mjd)
 {
-  double actTime = fgCalcActTime(t);
+  double actTime = sgCalcActTime(mjd);
    M = DEG_TO_RAD * (MFirst + (MSec * actTime));
    w = DEG_TO_RAD * (wFirst + (wSec * actTime));
    N = DEG_TO_RAD * (NFirst + (NSec * actTime));
@@ -159,7 +158,7 @@ inline void CelestialBody::updateOrbElements(FGTime *t)
    a = aFirst + (aSec * actTime);
 }
 /*****************************************************************************
- * inline double CelestialBody::fgCalcActTime(FGTime *t)
+ * inline double CelestialBody::sgCalcActTime(double mjd)
  * this private member function returns the offset in days from the epoch for
  * wich the orbital elements are calculated (Jan, 1st, 2000).
  * 
@@ -167,9 +166,9 @@ inline void CelestialBody::updateOrbElements(FGTime *t)
  *
  * return value: the (fractional) number of days until Jan 1, 2000.
  ****************************************************************************/
-inline double CelestialBody::fgCalcActTime(FGTime *t)
+inline double CelestialBody::sgCalcActTime(double mjd)
 {
-  return (t->getMjd() - 36523.5);
+  return (mjd - 36523.5);
 }
 
 /*****************************************************************************

simgear/ephemeris/ephemeris.cxx

@@ -5,19 +5,20 @@
 //
 // Copyright (C) 2000  Curtis L. Olson - curt@flightgear.org
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 
@@ -26,7 +27,7 @@
 
 
 // Constructor
-FGEphemeris::FGEphemeris( const string &path ) {
+SGEphemeris::SGEphemeris( const string &path ) {
     our_sun = new Star;
     moon = new Moon;
     mercury = new Mercury;
@@ -36,12 +37,12 @@ FGEphemeris::FGEphemeris( const string &path ) {
     saturn = new Saturn;
     uranus = new Uranus;
     neptune = new Neptune;
-    stars = new FGStars( FGPath(path) );
+    stars = new SGStarData( FGPath(path) );
 }
 
 
 // Destructor
-FGEphemeris::~FGEphemeris( void ) {
+SGEphemeris::~SGEphemeris( void ) {
     delete our_sun;
     delete moon;
     delete mercury;
@@ -57,17 +58,17 @@ FGEphemeris::~FGEphemeris( void ) {
 
 // Update (recalculate) the positions of all objects for the specified
 // time
-void FGEphemeris::update( FGTime *t, double lat ) {
+void SGEphemeris::update( double mjd, double lst, double lat ) {
     // update object positions
-    our_sun->updatePosition( t );
-    moon->updatePosition( t, lat, our_sun );
-    mercury->updatePosition( t, our_sun );
-    venus->updatePosition( t, our_sun );
-    mars->updatePosition( t, our_sun );
-    jupiter->updatePosition( t, our_sun );
-    saturn->updatePosition( t, our_sun );
-    uranus->updatePosition( t, our_sun );
-    neptune->updatePosition( t, our_sun );
+    our_sun->updatePosition( mjd );
+    moon->updatePosition( mjd, lst, lat, our_sun );
+    mercury->updatePosition( mjd, our_sun );
+    venus->updatePosition( mjd, our_sun );
+    mars->updatePosition( mjd, our_sun );
+    jupiter->updatePosition( mjd, our_sun );
+    saturn->updatePosition( mjd, our_sun );
+    uranus->updatePosition( mjd, our_sun );
+    neptune->updatePosition( mjd, our_sun );
 
     // update planets list
     nplanets = 7;

simgear/ephemeris/ephemeris.hxx

@@ -1,23 +1,27 @@
 // ephemeris.hxx -- Top level class for calculating current positions of
 //                  astronomical objects
 //
-// Written by Curtis Olson, started March 2000.
+// Top level interface written by Curtis Olson, started March 2000.
+//
+// All the core code underneath this is written by Durk Talsma.  See
+// the headers of all the other individual files for details.
 //
 // Copyright (C) 2000  Curtis L. Olson - curt@flightgear.org
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 
@@ -26,9 +30,11 @@
 #define _EPHEMERIS_HXX
 
 
-#include <plib/sg.h>
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
 
-#include <Time/fg_time.hxx>
+#include <plib/sg.h>
 
 #include "star.hxx"
 #include "moon.hxx"
@@ -42,7 +48,7 @@
 #include "stars.hxx"
 
 
-class FGEphemeris {
+class SGEphemeris {
 
     Star *our_sun;
     Moon *moon;
@@ -61,19 +67,19 @@ class FGEphemeris {
     int nplanets;
     sgdVec3 planets[7];
 
-    FGStars *stars;
+    SGStarData *stars;
 
 public:
 
     // Constructor
-    FGEphemeris( const string &path );
+    SGEphemeris( const string &path );
 
     // Destructor
-    ~FGEphemeris( void );
+    ~SGEphemeris( void );
 
     // Update (recalculate) the positions of all objects for the
     // specified time
-    void update(FGTime *t, double lat);
+    void update(double mjd, double lst, double lat);
 
     // sun
     inline Star *get_sun() const { return our_sun; }

simgear/ephemeris/jupiter.cxx

@@ -5,19 +5,20 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
@@ -31,19 +32,19 @@
 #include "jupiter.hxx"
 
 /*************************************************************************
- * Jupiter::Jupiter(FGTime *t)
+ * Jupiter::Jupiter(double mjd)
  * Public constructor for class Jupiter
  * Argument: The current time.
  * the hard coded orbital elements for Jupiter are passed to 
  * CelestialBody::CelestialBody();
  ************************************************************************/
-Jupiter::Jupiter(FGTime *t) :
+Jupiter::Jupiter(double mjd) :
   CelestialBody(100.4542,  2.7685400E-5,	
 		1.3030,   -1.557E-7,
 		273.8777,  1.6450500E-5,
 		5.2025600, 0.000000,
 		0.048498,  4.469E-9,
-		19.89500,  0.08308530010, t)
+		19.89500,  0.08308530010, mjd)
 {
 }
 
@@ -58,15 +59,15 @@ Jupiter::Jupiter() :
 }
 
 /*************************************************************************
- * void Jupiter::updatePosition(FGTime *t, Star *ourSun)
+ * void Jupiter::updatePosition(double mjd, Star *ourSun)
  * 
  * calculates the current position of Jupiter, by calling the base class,
  * CelestialBody::updatePosition(); The current magnitude is calculated using 
  * a Jupiter specific equation
  *************************************************************************/
-void Jupiter::updatePosition(FGTime *t, Star *ourSun)
+void Jupiter::updatePosition(double mjd, Star *ourSun)
 {
-  CelestialBody::updatePosition(t, ourSun);
+  CelestialBody::updatePosition(mjd, ourSun);
   magnitude = -9.25 + 5*log10( r*R ) + 0.014 * FV;
 }
 

simgear/ephemeris/jupiter.hxx

@@ -5,35 +5,35 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
 #ifndef _JUPITER_HXX_
 #define _JUPITER_HXX_
 
-#include <Time/fg_time.hxx>
 #include "celestialBody.hxx"
 #include "star.hxx"
 
 class Jupiter : public CelestialBody
 {
 public:
-  Jupiter (FGTime *t);
+  Jupiter (double mjd);
   Jupiter ();
-  void updatePosition(FGTime *t, Star *ourSun);
+  void updatePosition(double mjd, Star *ourSun);
 };
 
 #endif // _JUPITER_HXX_

simgear/ephemeris/mars.cxx

@@ -5,19 +5,20 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
@@ -30,19 +31,19 @@
 #include "mars.hxx"
 
 /*************************************************************************
- * Mars::Mars(FGTime *t)
+ * Mars::Mars(double mjd)
  * Public constructor for class Mars
  * Argument: The current time.
  * the hard coded orbital elements for Mars are passed to 
  * CelestialBody::CelestialBody();
  ************************************************************************/
-Mars::Mars(FGTime *t) :
+Mars::Mars(double mjd) :
   CelestialBody(49.55740,  2.1108100E-5,
 		1.8497,   -1.78E-8,
 		286.5016,  2.9296100E-5,
 		1.5236880, 0.000000,
 		0.093405,  2.516E-9,
-		18.60210,  0.52402077660, t)
+		18.60210,  0.52402077660, mjd)
 {
 }
 Mars::Mars() :
@@ -55,14 +56,14 @@ Mars::Mars() :
 {
 }
 /*************************************************************************
- * void Mars::updatePosition(FGTime *t, Star *ourSun)
+ * void Mars::updatePosition(double mjd, Star *ourSun)
  * 
  * calculates the current position of Mars, by calling the base class,
  * CelestialBody::updatePosition(); The current magnitude is calculated using 
  * a Mars specific equation
  *************************************************************************/
-void Mars::updatePosition(FGTime *t, Star *ourSun)
+void Mars::updatePosition(double mjd, Star *ourSun)
 {
-  CelestialBody::updatePosition(t, ourSun);
+  CelestialBody::updatePosition(mjd, ourSun);
   magnitude = -1.51 + 5*log10( r*R ) + 0.016 * FV;
 }

simgear/ephemeris/mars.hxx

@@ -5,35 +5,35 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
 #ifndef _MARS_HXX_
 #define _MARS_HXX_
 
-#include <Time/fg_time.hxx>
 #include "celestialBody.hxx"
 #include "star.hxx"
 
 class Mars : public CelestialBody
 {
 public:
-  Mars ( FGTime *t);
+  Mars ( double mjd );
   Mars ();
-  void updatePosition(FGTime *t, Star *ourSun);
+  void updatePosition(double mjd, Star *ourSun);
 };
 
 #endif // _MARS_HXX_

simgear/ephemeris/mercury.cxx

@@ -5,19 +5,20 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
@@ -30,19 +31,19 @@
 #include "mercury.hxx"
 
 /*************************************************************************
- * Mercury::Mercury(FGTime *t)
+ * Mercury::Mercury(double mjd)
  * Public constructor for class Mercury
  * Argument: The current time.
  * the hard coded orbital elements for Mercury are passed to 
  * CelestialBody::CelestialBody();
  ************************************************************************/
-Mercury::Mercury(FGTime *t) :
+Mercury::Mercury(double mjd) :
   CelestialBody (48.33130,   3.2458700E-5,
                   7.0047,    5.00E-8,
                   29.12410,  1.0144400E-5,
                   0.3870980, 0.000000,
                   0.205635,  5.59E-10,
-                  168.6562,  4.09233443680, t)
+                  168.6562,  4.09233443680, mjd)
 {
 }
 Mercury::Mercury() :
@@ -55,15 +56,15 @@ Mercury::Mercury() :
 {
 }
 /*************************************************************************
- * void Mercury::updatePosition(FGTime *t, Star *ourSun)
+ * void Mercury::updatePosition(double mjd, Star *ourSun)
  * 
  * calculates the current position of Mercury, by calling the base class,
  * CelestialBody::updatePosition(); The current magnitude is calculated using 
  * a Mercury specific equation
  *************************************************************************/
-void Mercury::updatePosition(FGTime *t, Star *ourSun)
+void Mercury::updatePosition(double mjd, Star *ourSun)
 {
-  CelestialBody::updatePosition(t, ourSun);
+  CelestialBody::updatePosition(mjd, ourSun);
   magnitude = -0.36 + 5*log10( r*R ) + 0.027 * FV + 2.2E-13 * pow(FV, 6); 
 }
 

simgear/ephemeris/mercury.hxx

@@ -5,35 +5,35 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
 #ifndef _MERCURY_HXX_
 #define _MERCURY_HXX_
 
-#include <Time/fg_time.hxx>
 #include "celestialBody.hxx"
 #include "star.hxx"
 
 class Mercury : public CelestialBody
 {
 public:
-  Mercury ( FGTime *t);
+  Mercury (double mjd);
   Mercury ();
-  void updatePosition(FGTime *t, Star* ourSun);
+  void updatePosition(double mjd, Star* ourSun);
 };
 
 #endif // _MERURY_HXX_

simgear/ephemeris/moon.cxx

@@ -5,19 +5,20 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
@@ -28,106 +29,32 @@
 #include <simgear/debug/logstream.hxx>
 #include <simgear/misc/fgpath.hxx>
 
-#include <Main/options.hxx>
-#include <Objects/texload.h>
-
 #ifdef __BORLANDC__
 #  define exception c_exception
 #endif
 #include <math.h>
 
-#include <FDM/flight.hxx>
+// #include <FDM/flight.hxx>
 
 #include "moon.hxx"
 
 
 /*************************************************************************
- * Moon::Moon(FGTime *t)
+ * Moon::Moon(double mjd)
  * Public constructor for class Moon. Initializes the orbital elements and 
  * sets up the moon texture.
  * Argument: The current time.
  * the hard coded orbital elements for Moon are passed to 
  * CelestialBody::CelestialBody();
  ************************************************************************/
-Moon::Moon(FGTime *t) :
+Moon::Moon(double mjd) :
   CelestialBody(125.1228, -0.0529538083,
 		5.1454,    0.00000,
 		318.0634,  0.1643573223,
 		60.266600, 0.000000,
 		0.054900,  0.000000,
-		115.3654,  13.0649929509, t)
+		115.3654,  13.0649929509, mjd)
 {
-#if 0
-  int width, height;
-  
-  FG_LOG( FG_GENERAL, FG_INFO, "Initializing Moon Texture");
-#ifdef GL_VERSION_1_1
-  xglGenTextures(1, &moon_texid);
-  xglBindTexture(GL_TEXTURE_2D, moon_texid);
-#elif GL_EXT_texture_object
-  xglGenTexturesEXT(1, &moon_texid);
-  xglBindTextureEXT(GL_TEXTURE_2D, moon_texid);
-#else
-#  error port me
-#endif
-
-  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-  // load in the texture data
-  FGPath tpath( current_options.get_fg_root() );
-  tpath.append( "Textures" );
-  tpath.append( "moon.rgb" );
-
-  if ( (moon_texbuf = read_rgb_texture(tpath.c_str(), &width, &height)) 
-       == NULL )
-  {
-    // Try compressed
-    FGPath fg_tpath = tpath;
-    fg_tpath.append( ".gz" );
-    if ( (moon_texbuf = read_rgb_texture(fg_tpath.c_str(), &width, &height)) 
-	 == NULL )
-    {
-	FG_LOG( FG_GENERAL, FG_ALERT, 
-		"Error in loading moon texture " << tpath.str() );
-	exit(-1);
-    } 
-  } 
-
-  glTexImage2D( GL_TEXTURE_2D,
-		0,
-		GL_RGB,
-		256, 256,
-		0,
-		GL_RGB, GL_UNSIGNED_BYTE,
-		moon_texbuf);
-
-  // setup the halo texture
-  FG_LOG( FG_GENERAL, FG_INFO, "Initializing Moon Texture");
-#ifdef GL_VERSION_1_1
-  xglGenTextures(1, &moon_halotexid);
-  xglBindTexture(GL_TEXTURE_2D, moon_halotexid);
-#elif GL_EXT_texture_object
-  xglGenTexturesEXT(1, &moon_halotexid);
-  xglBindTextureEXT(GL_TEXTURE_2D, moon_halotexid);
-#else
-#  error port me
-#endif
-
-  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-  setHalo();
-  glTexImage2D( GL_TEXTURE_2D,
-		0,
-		GL_RGBA,
-		256, 256,
-		0,
-		GL_RGBA, GL_UNSIGNED_BYTE,
-		moon_halotexbuf);
-  moonObject = gluNewQuadric();
-#endif
 }
 
 Moon::Moon() :
@@ -143,70 +70,16 @@ Moon::Moon() :
 
 Moon::~Moon()
 {
-    //delete moonObject;
-    // delete moon_texbuf;
-    // delete moon_halotexbuf;
 }
 
 
-#if 0
-static int texWidth = 256;	/* 64x64 is plenty */
-
-void Moon::setHalo()
-{
-  int texSize;
-  //void *textureBuf;
-  GLubyte *p;
-  int i,j;
-  double radius;
-  
-  texSize = texWidth*texWidth;
-  
-  moon_halotexbuf = new GLubyte[texSize*4];
-  if (!moon_halotexbuf) 
-    return;  // Ugly!
-  
-  p = moon_halotexbuf;
-  
-  radius = (double)(texWidth / 2);
-  
-  for (i=0; i < texWidth; i++) {
-    for (j=0; j < texWidth; j++) {
-      double x, y, d;
-      
-      *p = 0xff;
-      *(p+1) = 0xff;
-      *(p+2) = 0xff;
-	  
-      x = fabs((double)(i - (texWidth / 2)));
-      y = fabs((double)(j - (texWidth / 2)));
-
-      d = sqrt((x * x) + (y * y));
-      if (d < radius) {
-	  double t = 1.0 - (d / radius); // t is 1.0 at center, 0.0 at edge */
-	  // inverse square looks nice 
-	  *(p+3) = (int)((double) 0x20 * (t*t));
-      } else {
-	  *(p+3) = 0x00;
-      }
-      p += 4;
-    }
-  }
-  //gluBuild2DMipmaps(GL_TEXTURE_2D, 1, texWidth, texWidth, 
-  //	    GL_LUMINANCE,
-  //	    GL_UNSIGNED_BYTE, textureBuf);
-  //free(textureBuf);
-}
-#endif
-
-
 /*****************************************************************************
- * void Moon::updatePosition(FGTime *t, Star *ourSun)
+ * void Moon::updatePosition(double mjd, Star *ourSun)
  * this member function calculates the actual topocentric position (i.e.) 
  * the position of the moon as seen from the current position on the surface
  * of the moon. 
  ****************************************************************************/
-void Moon::updatePosition(FGTime *t, double lat, Star *ourSun)
+void Moon::updatePosition(double mjd, double lst, double lat, Star *ourSun)
 {
   double 
     eccAnom, ecl, actTime,
@@ -214,19 +87,13 @@ void Moon::updatePosition(FGTime *t, double lat, Star *ourSun)
     Ls, Lm, D, F, mpar, gclat, rho, HA, g,
     geoRa, geoDec;
   
-  fgAIRCRAFT *air;
-  FGInterface *f;
-
-  air = &current_aircraft;
-  f = air->fdm_state;
- 
-  updateOrbElements(t);
-  actTime = fgCalcActTime(t);
+  updateOrbElements(mjd);
+  actTime = sgCalcActTime(mjd);
 
   // calculate the angle between ecliptic and equatorial coordinate system
   // in Radians
   ecl = ((DEG_TO_RAD * 23.4393) - (DEG_TO_RAD * 3.563E-7) * actTime);  
-  eccAnom = fgCalcEccAnom(M, e);  // Calculate the eccentric anomaly
+  eccAnom = sgCalcEccAnom(M, e);  // Calculate the eccentric anomaly
   xv = a * (cos(eccAnom) - e);
   yv = a * (sqrt(1.0 - e*e) * sin(eccAnom));
   v = atan2(yv, xv);               // the moon's true anomaly
@@ -308,7 +175,7 @@ void Moon::updatePosition(FGTime *t, double lat, Star *ourSun)
   if (geoRa < 0)
     geoRa += (2*FG_PI);
   
-  HA = t->getLst() - (3.8197186 * geoRa);
+  HA = lst - (3.8197186 * geoRa);
   /* FG_LOG( FG_GENERAL, FG_INFO, "t->getLst() = " << t->getLst() 
 	  << " HA = " << HA ); */
 
@@ -322,95 +189,3 @@ void Moon::updatePosition(FGTime *t, double lat, Star *ourSun)
 	  "Ra = (" << (RAD_TO_DEG *rightAscension) 
 	  << "), Dec= (" << (RAD_TO_DEG *declination) << ")" ); */
 }
-
-
-#if 0
-/************************************************************************
- * void Moon::newImage()
- *
- * This function regenerates a new visual image of the moon, which is added to
- * solarSystem display list.
- *
- * Arguments: Right Ascension and declination
- *
- * return value: none
- **************************************************************************/
-void Moon::newImage()
-{
-  fgLIGHT *l = &cur_light_params;
-  float moon_angle = l->moon_angle;
-  
-  /*double x_2, x_4, x_8, x_10;
-  GLfloat ambient;
-  GLfloat amb[4];*/
-  int moonSize = 550;
-
-  GLfloat moonColor[4] = {0.85, 0.75, 0.35, 1.0};
-  GLfloat black[4] = {0.0, 0.0, 0.0, 1.0};
-  GLfloat white[4] = {1.0, 1.0, 1.0, 0.0};
-  
-  if( moon_angle*RAD_TO_DEG < 100 ) 
-    {
-      FG_LOG( FG_ASTRO, FG_INFO, "Generating Moon Image" );
-
-      xglPushMatrix();
-      {
-	xglRotatef(((RAD_TO_DEG * rightAscension)- 90.0), 0.0, 0.0, 1.0);
-	xglRotatef((RAD_TO_DEG * declination), 1.0, 0.0, 0.0);
-	
-	FG_LOG( FG_GENERAL, FG_INFO, 
-		"Ra = (" << (RAD_TO_DEG *rightAscension) 
-		<< "), Dec= (" << (RAD_TO_DEG *declination) << ")" );
-	xglTranslatef(0.0, 60000.0, 0.0);
-	glEnable(GL_BLEND);	// BLEND ENABLED
-
-	// Draw the halo...
-	if (current_options.get_textures())
-	  {
-	    // glBlendFunc(GL_SRC_ALPHA, GL_ONE);
-	    glBlendFunc ( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA ) ;
-	    glEnable(GL_TEXTURE_2D); // TEXTURE ENABLED
-	    glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);  
-	    glBindTexture(GL_TEXTURE_2D, moon_halotexid);
-	  
-	    glBegin(GL_QUADS);
-	    glTexCoord2f(0.0f, 0.0f); glVertex3f(-5000, 0.0, -5000);
-	    glTexCoord2f(1.0f, 0.0f); glVertex3f( 5000, 0.0, -5000);
-	    glTexCoord2f(1.0f, 1.0f); glVertex3f( 5000, 0.0,  5000);
-	    glTexCoord2f(0.0f, 1.0f); glVertex3f(-5000, 0.0,  5000);
-	    glEnd();
-	  }
-	
-	xglEnable(GL_LIGHTING);	// LIGHTING ENABLED
-	xglEnable( GL_LIGHT0 );
-	// set lighting parameters
-	xglLightfv(GL_LIGHT0, GL_AMBIENT, white );
-	xglLightfv(GL_LIGHT0, GL_DIFFUSE, white );
-	// Enable( GL_CULL_FACE );
-	xglMaterialfv(GL_FRONT, GL_AMBIENT, black);
-	xglMaterialfv(GL_FRONT, GL_DIFFUSE, moonColor); 
-	//glEnable(GL_TEXTURE_2D);
-	
-	glBlendFunc(GL_ONE, GL_ONE);
-	
-	//glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 
-	// Draw the moon-proper
-	
-	if (current_options.get_textures())
-	  {
-	    glBindTexture(GL_TEXTURE_2D, moon_texid);                         
-	    gluQuadricTexture(moonObject, GL_TRUE );
-	  }
-	gluSphere(moonObject,  moonSize, 12, 12 );
-	glDisable(GL_TEXTURE_2D); // TEXTURE DISABLED
-	glDisable(GL_BLEND);	// BLEND DISABLED
-      }
-      xglPopMatrix();
-      glDisable(GL_LIGHTING);	// Lighting Disabled.
-      
-    }
-  else
-    {
-    }
-}
-#endif

simgear/ephemeris/moon.hxx

@@ -5,19 +5,20 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
@@ -27,10 +28,6 @@
 
 #include <simgear/constants.h>
 
-#include <Aircraft/aircraft.hxx>
-#include <Main/views.hxx>
-#include <Time/fg_time.hxx>
-
 #include "celestialBody.hxx"
 #include "star.hxx"
 
@@ -52,10 +49,10 @@ private:
 
 public:
 
-    Moon( FGTime *t);
+    Moon(double mjd);
     Moon();
     ~Moon();
-    void updatePosition(FGTime *t, double lat, Star *ourSun);
+    void updatePosition(double mjd, double lst, double lat, Star *ourSun);
     // void newImage();
 };
 

simgear/ephemeris/neptune.cxx

@@ -5,19 +5,20 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
@@ -30,19 +31,19 @@
 #include "neptune.hxx"
 
 /*************************************************************************
- * Neptune::Neptune(FGTime *t)
+ * Neptune::Neptune(double mjd)
  * Public constructor for class Neptune
  * Argument: The current time.
  * the hard coded orbital elements for Neptune are passed to 
  * CelestialBody::CelestialBody();
  ************************************************************************/
-Neptune::Neptune(FGTime *t) :
+Neptune::Neptune(double mjd) :
   CelestialBody(131.7806,   3.0173000E-5,
 		1.7700,	   -2.550E-7,
 		272.8461,  -6.027000E-6,	
 		30.058260,  3.313E-8,
 		0.008606,   2.150E-9,
-		260.2471,   0.00599514700, t)
+		260.2471,   0.00599514700, mjd)
 {
 }
 Neptune::Neptune() :
@@ -55,14 +56,14 @@ Neptune::Neptune() :
 {
 }
 /*************************************************************************
- * void Neptune::updatePosition(FGTime *t, Star *ourSun)
+ * void Neptune::updatePosition(double mjd, Star *ourSun)
  * 
  * calculates the current position of Neptune, by calling the base class,
  * CelestialBody::updatePosition(); The current magnitude is calculated using 
  * a Neptune specific equation
  *************************************************************************/
-void Neptune::updatePosition(FGTime *t, Star *ourSun)
+void Neptune::updatePosition(double mjd, Star *ourSun)
 {
-  CelestialBody::updatePosition(t, ourSun);
+  CelestialBody::updatePosition(mjd, ourSun);
   magnitude = -6.90 + 5*log10 (r*R) + 0.001 *FV;
 }

simgear/ephemeris/neptune.hxx

@@ -5,35 +5,35 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
 #ifndef _NEPTUNE_HXX_
 #define _NEPTUNE_HXX_
 
-#include <Time/fg_time.hxx>
 #include "celestialBody.hxx"
 #include "star.hxx"
 
 class Neptune : public CelestialBody
 {
 public:
-  Neptune ( FGTime *t);
+  Neptune (double mjd);
   Neptune ();
-  void updatePosition(FGTime *t, Star *ourSun);
+  void updatePosition(double mjd, Star *ourSun);
 };
 
 #endif // _NEPTUNE_HXX_

simgear/ephemeris/pluto.hxx

@@ -5,32 +5,32 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
 #ifndef _PLUTO_HXX_
 #define _PLUTO_HXX_
 
-#include <Time/fg_time.hxx>
 #include "celestialBody.hxx"
 
 class Pluto : public CelestialBody
 {
 public:
-  Pluto ( FGTime *t);
+  Pluto (double mjd);
   Pluto ();
 };
 

simgear/ephemeris/saturn.cxx

@@ -5,19 +5,20 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
@@ -30,19 +31,19 @@
 #include "saturn.hxx"
 
 /*************************************************************************
- * Saturn::Saturn(FGTime *t)
+ * Saturn::Saturn(double mjd)
  * Public constructor for class Saturn
  * Argument: The current time.
  * the hard coded orbital elements for Saturn are passed to 
  * CelestialBody::CelestialBody();
  ************************************************************************/
-Saturn::Saturn(FGTime *t) :
+Saturn::Saturn(double mjd) :
   CelestialBody(113.6634,   2.3898000E-5,
 		2.4886,	   -1.081E-7,
 		339.3939,   2.9766100E-5,
 		9.5547500,  0.000000,
 		0.055546,  -9.499E-9,
-		316.9670,   0.03344422820, t)
+		316.9670,   0.03344422820, mjd)
 {
 }
 Saturn::Saturn() :
@@ -56,17 +57,17 @@ Saturn::Saturn() :
 }
 
 /*************************************************************************
- * void Saturn::updatePosition(FGTime *t, Star *ourSun)
+ * void Saturn::updatePosition(double mjd, Star *ourSun)
  * 
  * calculates the current position of Saturn, by calling the base class,
  * CelestialBody::updatePosition(); The current magnitude is calculated using 
  * a Saturn specific equation
  *************************************************************************/
-void Saturn::updatePosition(FGTime *t, Star *ourSun)
+void Saturn::updatePosition(double mjd, Star *ourSun)
 {
-  CelestialBody::updatePosition(t, ourSun);
+  CelestialBody::updatePosition(mjd, ourSun);
   
-  double actTime = fgCalcActTime(t);
+  double actTime = sgCalcActTime(mjd);
   double ir = 0.4897394;
   double Nr = 2.9585076 + 6.6672E-7*actTime;
   double B = asin (sin(declination) * cos(ir) - 

simgear/ephemeris/saturn.hxx

@@ -5,35 +5,35 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
 #ifndef _SATURN_HXX_
 #define _SATURN_HXX_
 
-#include <Time/fg_time.hxx>
 #include "celestialBody.hxx"
 #include "star.hxx"
 
 class Saturn : public CelestialBody
 {
 public:
-  Saturn ( FGTime *t);
+  Saturn (double mjd);
   Saturn ();
-  void updatePosition(FGTime *t, Star *ourSun);
+  void updatePosition(double mjd, Star *ourSun);
 };
 
 #endif // _SATURN_HXX_

simgear/ephemeris/star.cxx

@@ -5,19 +5,20 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
@@ -30,15 +31,11 @@
 
 #include <simgear/debug/logstream.hxx>
 
-#include <Time/sunpos.hxx>
-#include <Time/light.hxx>
-#include <Main/options.hxx>
-
 #include "star.hxx"
 
 
 /*************************************************************************
- * Star::Star(FGTime *t)
+ * Star::Star(double mjd)
  * Public constructor for class Star
  * Argument: The current time.
  * the hard coded orbital elements our sun are passed to 
@@ -46,13 +43,13 @@
  * note that the word sun is avoided, in order to prevent some compilation
  * problems on sun systems 
  ************************************************************************/
-Star::Star(FGTime *t) :
+Star::Star(double mjd) :
     CelestialBody (0.000000,  0.0000000000,
 		   0.0000,    0.00000,
 		   282.9404,  4.7093500E-5,	
 		   1.0000000, 0.000000,	
 		   0.016709,  -1.151E-9,
-		   356.0470,  0.98560025850, t)
+		   356.0470,  0.98560025850, mjd)
 {
     distance = 0.0;
 }
@@ -74,22 +71,22 @@ Star::~Star()
 
 
 /*************************************************************************
- * void Star::updatePosition(FGTime *t, Star *ourSun)
+ * void Star::updatePosition(double mjd, Star *ourSun)
  * 
  * calculates the current position of our sun.
  *************************************************************************/
-void Star::updatePosition(FGTime *t)
+void Star::updatePosition(double mjd)
 {
   double 
     actTime, eccAnom, 
     xv, yv, v, r,
     xe, ye, ze, ecl;
 
-  updateOrbElements(t);
+  updateOrbElements(mjd);
   
-  actTime = fgCalcActTime(t);
+  actTime = sgCalcActTime(mjd);
   ecl = DEG_TO_RAD * (23.4393 - 3.563E-7 * actTime); // Angle in Radians
-  eccAnom = fgCalcEccAnom(M, e);  // Calculate the eccentric Anomaly (also known as solving Kepler's equation)
+  eccAnom = sgCalcEccAnom(M, e);  // Calculate the eccentric Anomaly (also known as solving Kepler's equation)
   
   xv = cos(eccAnom) - e;
   yv = sqrt (1.0 - e*e) * sin(eccAnom);

simgear/ephemeris/star.hxx

@@ -5,19 +5,20 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
@@ -25,7 +26,6 @@
 #define _STAR_HXX_
 
 
-#include <Time/fg_time.hxx>
 #include "celestialBody.hxx"
 
 
@@ -39,10 +39,10 @@ private:
 
 public:
 
-    Star (FGTime *t);
+    Star (double mjd);
     Star ();
     ~Star();
-    void updatePosition(FGTime *t);
+    void updatePosition(double mjd);
     double getM();
     double getw();
     double getxs();

simgear/ephemeris/stars.cxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 2000  Curtis L. Olson - curt@flightgear.org
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 
@@ -26,27 +27,30 @@
 
 #include "stars.hxx"
 
+#ifdef _MSC_VER
+  FG_USING_STD(getline);
+#endif
 
 // Constructor
-FGStars::FGStars() {
+SGStarData::SGStarData() {
 }
 
-FGStars::FGStars( FGPath path ) {
+SGStarData::SGStarData( FGPath path ) {
     data_path = FGPath( path );
     load();
 }
 
 
 // Destructor
-FGStars::~FGStars() {
+SGStarData::~SGStarData() {
 }
 
 
-bool FGStars::load() {
+bool SGStarData::load() {
 
     // -dw- avoid local data > 32k error by dynamic allocation of the
     // array, problem for some compilers
-    stars = new sgdVec3[FG_MAX_STARS];
+    stars = new sgdVec3[SG_MAX_STARS];
 
      // build the full path name to the stars data base file
     data_path.append( "stars" );
@@ -66,7 +70,7 @@ bool FGStars::load() {
     nstars = 0;
 
     // read in each line of the file
-    while ( ! in.eof() && nstars < FG_MAX_STARS ) {
+    while ( ! in.eof() && nstars < SG_MAX_STARS ) {
 	in >> skipcomment;
 
         getline( in, name, ',' );

simgear/ephemeris/stars.hxx

@@ -4,25 +4,26 @@
 //
 // Copyright (C) 2000  Curtis L. Olson - curt@flightgear.org
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 
 
-#ifndef _STARS_HXX
-#define _STARS_HXX
+#ifndef _SG_STARDATA_HXX
+#define _SG_STARDATA_HXX
 
 
 #include <plib/sg.h>
@@ -30,10 +31,10 @@
 #include <simgear/misc/fgpath.hxx>
 
 
-#define FG_MAX_STARS 850
+#define SG_MAX_STARS 850
 
 
-class FGStars {
+class SGStarData {
 
     int nstars;
     sgdVec3 *stars;
@@ -43,11 +44,11 @@ class FGStars {
 public:
 
     // Constructor
-    FGStars();
-    FGStars( FGPath path );
+    SGStarData();
+    SGStarData( FGPath path );
 
     // Destructor
-    ~FGStars();
+    ~SGStarData();
 
     // load the stars database
     bool load();
@@ -58,4 +59,4 @@ public:
 };
 
 
-#endif // _STARS_HXX
+#endif // _SG_STARDATA_HXX

simgear/ephemeris/uranus.cxx

@@ -5,19 +5,20 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
@@ -30,19 +31,19 @@
 #include "uranus.hxx"
 
 /*************************************************************************
- * Uranus::Uranus(FGTime *t)
+ * Uranus::Uranus(double mjd)
  * Public constructor for class Uranus
  * Argument: The current time.
  * the hard coded orbital elements for Uranus are passed to 
  * CelestialBody::CelestialBody();
  ************************************************************************/
-Uranus::Uranus(FGTime *t) :
+Uranus::Uranus(double mjd) :
   CelestialBody(74.00050,   1.3978000E-5,
 		0.7733,     1.900E-8,
 		96.66120,   3.0565000E-5,
 		19.181710, -1.55E-8,
 		0.047318,   7.450E-9,
-		142.5905,   0.01172580600, t)
+		142.5905,   0.01172580600, mjd)
 {
 }
 Uranus::Uranus() :
@@ -56,14 +57,14 @@ Uranus::Uranus() :
 }
 
 /*************************************************************************
- * void Uranus::updatePosition(FGTime *t, Star *ourSun)
+ * void Uranus::updatePosition(double mjd, Star *ourSun)
  * 
  * calculates the current position of Uranus, by calling the base class,
  * CelestialBody::updatePosition(); The current magnitude is calculated using 
  * a Uranus specific equation
  *************************************************************************/
-void Uranus::updatePosition(FGTime *t, Star *ourSun)
+void Uranus::updatePosition(double mjd, Star *ourSun)
 {
-  CelestialBody::updatePosition(t, ourSun);
+  CelestialBody::updatePosition(mjd, ourSun);
   magnitude = -7.15 + 5*log10( r*R) + 0.001 * FV;
 }

simgear/ephemeris/uranus.hxx

@@ -5,35 +5,35 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
 #ifndef _URANUS_HXX_
 #define _URANUS_HXX_
 
-#include <Time/fg_time.hxx>
 #include "celestialBody.hxx"
 #include "star.hxx"
 
 class Uranus : public CelestialBody
 {
 public:
-  Uranus ( FGTime *t);
+  Uranus (double mjd);
   Uranus ();
-  void updatePosition(FGTime *t, Star *ourSun);
+  void updatePosition(double mjd, Star *ourSun);
 };
 
 #endif // _URANUS_HXX_

simgear/ephemeris/venus.cxx

@@ -5,19 +5,20 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
@@ -30,19 +31,19 @@
 #include "venus.hxx"
 
 /*************************************************************************
- * Venus::Venus(FGTime *t)
+ * Venus::Venus(double mjd)
  * Public constructor for class Venus
  * Argument: The current time.
  * the hard coded orbital elements for Venus are passed to 
  * CelestialBody::CelestialBody();
  ************************************************************************/
-Venus::Venus(FGTime *t) :
+Venus::Venus(double mjd) :
   CelestialBody(76.67990,  2.4659000E-5, 
 		3.3946,    2.75E-8,
 		54.89100,  1.3837400E-5,
 		0.7233300, 0.000000,
 		0.006773, -1.302E-9,
-		48.00520,  1.60213022440, t)
+		48.00520,  1.60213022440, mjd)
 {
 }
 Venus::Venus() :
@@ -56,14 +57,14 @@ Venus::Venus() :
 }
 
 /*************************************************************************
- * void Venus::updatePosition(FGTime *t, Star *ourSun)
+ * void Venus::updatePosition(double mjd, Star *ourSun)
  * 
  * calculates the current position of Venus, by calling the base class,
  * CelestialBody::updatePosition(); The current magnitude is calculated using 
  * a Venus specific equation
  *************************************************************************/
-void Venus::updatePosition(FGTime *t, Star *ourSun)
+void Venus::updatePosition(double mjd, Star *ourSun)
 {
-  CelestialBody::updatePosition(t, ourSun);
+  CelestialBody::updatePosition(mjd, ourSun);
   magnitude = -4.34 + 5*log10( r*R ) + 0.013 * FV + 4.2E-07 * pow(FV,3);
 }

simgear/ephemeris/venus.hxx

@@ -5,35 +5,35 @@
  * September 1998. This code is based upon algorithms and data kindly 
  * provided by Mr. Paul Schlyter. (pausch@saaf.se). 
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/
 #ifndef _VENUS_HXX_
 #define _VENUS_HXX_
 
-#include <Time/fg_time.hxx>
 #include "celestialBody.hxx"
 #include "star.hxx"
 
 class Venus : public CelestialBody
 {
 public:
-  Venus ( FGTime *t);
+  Venus (double mjd);
   Venus ();
-  void updatePosition(FGTime *t, Star *ourSun);
+  void updatePosition(double mjd, Star *ourSun);
 };
 
 #endif // _VENUS_HXX_

simgear/fg_zlib.h

@@ -6,19 +6,20 @@
  *
  * Copyright (C) 1998  Curtis L. Olson  - curt@me.umn.edu
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ * Library General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * $Id$
  **************************************************************************/

simgear/inlines.h

@@ -0,0 +1,62 @@
+// inlines.h -- various inline template definitions
+//
+// Written by Norman Vine, started June 2000.
+//
+// Copyright (C) 2000  Norman Vine  - nhv@cape.com
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
+//
+// $Id$
+
+
+#ifndef _SG_INLINES_H
+#define _SG_INLINES_H
+
+
+template <class T>
+inline const int SG_SIGN(const T x) {
+    return x < T(0) ? -1 : 1;
+}
+
+template <class T>
+inline const T SG_MIN(const T a, const T b) {
+    return a < b ? a : b;
+}
+
+// return the minimum of three values
+template <class T>
+inline const T SG_MIN3( const T a, const T b, const T c) {
+    return (a < b ? SG_MIN (a, c) : SG_MIN (b, c));
+}
+
+template <class T>
+inline const T SG_MAX(const T a, const T b) {
+    return  a > b ? a : b;
+}
+
+// return the maximum of three values
+template <class T>
+inline const T SG_MAX3 (const T a, const T b, const T c) {
+    return (a > b ? SG_MAX (a, c) : SG_MAX (b, c));
+}
+
+// 
+template <class T>
+inline void SG_SWAP( T &a, T &b) {
+    T c = a;  a = b;  b = c;
+}
+
+#endif // _SG_INLINES_H

simgear/io/Makefile.am

@@ -0,0 +1,17 @@
+includedir = @includedir@/io
+
+lib_LIBRARIES = libsgio.a
+
+include_HEADERS = \
+	iochannel.hxx \
+	sg_file.hxx \
+	sg_serial.hxx \
+	sg_socket.hxx
+
+libsgio_a_SOURCES = \
+	iochannel.cxx \
+	sg_file.cxx \
+	sg_serial.cxx \
+	sg_socket.cxx 
+
+INCLUDES += -I$(top_builddir)

simgear/io/iochannel.cxx

@@ -0,0 +1,74 @@
+// iochannel.cxx -- High level IO channel class
+//
+// Written by Curtis Olson, started November 1999.
+//
+// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+
+
+#include "iochannel.hxx"
+// #include "garmin.hxx"
+// #include "nmea.hxx"
+
+
+// constructor
+SGIOChannel::SGIOChannel()
+{
+}
+
+
+// destructor
+SGIOChannel::~SGIOChannel()
+{
+}
+
+
+// dummy configure routine
+bool SGIOChannel::open( SGProtocolDir dir ) {
+    return false;
+}
+
+
+// dummy process routine
+int SGIOChannel::read( char *buf, int length ) {
+    return 0;
+}
+
+
+// dummy process routine
+int SGIOChannel::readline( char *buf, int length ) {
+    return 0;
+}
+
+
+// dummy process routine
+int SGIOChannel::write( char *buf, int length ) {
+    return false;
+}
+
+
+// dummy process routine
+int SGIOChannel::writestring( char *str ) {
+    return false;
+}
+
+
+// dummy close routine
+bool SGIOChannel::close() {
+    return false;
+}

simgear/io/iochannel.hxx

@@ -0,0 +1,78 @@
+// iochannel.hxx -- High level IO channel class
+//
+// Written by Curtis Olson, started November 1999.
+//
+// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+
+
+#ifndef _IOCHANNEL_HXX
+#define _IOCHANNEL_HXX
+
+
+#include <simgear/compiler.h>
+
+// #include "protocol.hxx"
+
+#include STL_STRING
+#include <vector>
+
+FG_USING_STD(vector);
+FG_USING_STD(string);
+
+
+#define SG_IO_MAX_MSG_SIZE 16384
+
+enum SGProtocolDir {
+    SG_IO_NONE = 0,
+    SG_IO_IN = 1,
+    SG_IO_OUT = 2,
+    SG_IO_BI = 3
+};
+
+
+enum SGChannelType {
+    sgFileType = 0,
+    sgSerialType = 1,
+    sgSocketType = 2
+};
+
+class SGIOChannel {
+
+    SGChannelType type;
+
+public:
+
+    SGIOChannel();
+    virtual ~SGIOChannel();
+
+    virtual bool open( SGProtocolDir dir );
+    virtual int read( char *buf, int length );
+    virtual int readline( char *buf, int length );
+    virtual int write( char *buf, int length );
+    virtual int writestring( char *str );
+    virtual bool close();
+
+    virtual void set_type( SGChannelType t ) { type = t; }
+    virtual SGChannelType get_type() const { return type; }
+};
+
+
+#endif // _IOCHANNEL_HXX
+
+

simgear/io/sg_file.cxx

@@ -0,0 +1,156 @@
+// sg_file.cxx -- File I/O routines
+//
+// Written by Curtis Olson, started November 1999.
+//
+// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+
+
+#include <simgear/compiler.h>
+
+#include STL_STRING
+
+#ifdef _MSC_VER
+#  include <io.h>
+#endif
+
+#include <simgear/debug/logstream.hxx>
+
+#include "sg_file.hxx"
+
+FG_USING_STD(string);
+
+
+SGFile::SGFile( const string &file) {
+    set_type( sgFileType );
+    file_name = file;
+}
+
+
+SGFile::~SGFile() {
+}
+
+
+// open the file based on specified direction
+bool SGFile::open( SGProtocolDir dir ) {
+    if ( dir == SG_IO_OUT ) {
+#ifdef _MSC_VER
+	fp = _open( file_name.c_str(), O_WRONLY | O_CREAT | O_TRUNC,
+			00666 );
+#else
+	fp = std::open( file_name.c_str(), O_WRONLY | O_CREAT | O_TRUNC,
+			S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | 
+			S_IROTH | S_IWOTH );
+#endif
+    } else if ( dir == SG_IO_IN ) {
+#ifdef _MSC_VER
+	fp = _open( file_name.c_str(), O_RDONLY );
+#else
+	fp = std::open( file_name.c_str(), O_RDONLY );
+#endif
+    } else {
+	FG_LOG( FG_IO, FG_ALERT, 
+		"Error:  bidirection mode not available for files." );
+	return false;
+    }
+
+    if ( fp == -1 ) {
+	FG_LOG( FG_IO, FG_ALERT, "Error opening file: "	<< file_name );
+	return false;
+    }
+
+    return true;
+}
+
+
+// read a block of data of specified size
+int SGFile::read( char *buf, int length ) {
+    // read a chunk
+#ifdef _MSC_VER
+    int result = _read( fp, buf, length );
+#else
+    int result = std::read( fp, buf, length );
+#endif
+
+    return result;
+}
+
+
+// read a line of data, length is max size of input buffer
+int SGFile::readline( char *buf, int length ) {
+    // save our current position
+    int pos = lseek( fp, 0, SEEK_CUR );
+
+    // read a chunk
+#ifdef _MSC_VER
+    int result = _read( fp, buf, length );
+#else
+    int result = std::read( fp, buf, length );
+#endif
+
+    // find the end of line and reset position
+    int i;
+    for ( i = 0; i < result && buf[i] != '\n'; ++i );
+    if ( buf[i] == '\n' ) {
+	result = i + 1;
+    } else {
+	result = i;
+    }
+    lseek( fp, pos + result, SEEK_SET );
+    
+    // just in case ...
+    buf[ result ] = '\0';
+
+    return result;
+}
+
+
+// write data to a file
+int SGFile::write( char *buf, int length ) {
+#ifdef _MSC_VER
+    int result = _write( fp, buf, length );
+#else
+    int result = std::write( fp, buf, length );
+#endif
+    if ( result != length ) {
+	FG_LOG( FG_IO, FG_ALERT, "Error writing data: " << file_name );
+    }
+
+    return result;
+}
+
+
+// write null terminated string to a file
+int SGFile::writestring( char *str ) {
+    int length = strlen( str );
+    return write( str, length );
+}
+
+
+// close the port
+bool SGFile::close() {
+#ifdef _MSC_VER
+    if ( _close( fp ) == -1 ) {
+#else
+    if ( std::close( fp ) == -1 ) {
+#endif
+	return false;
+    }
+
+    return true;
+}

simgear/io/sg_file.hxx

@@ -0,0 +1,82 @@
+// sg_file.hxx -- File I/O routines
+//
+// Written by Curtis Olson, started November 1999.
+//
+// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+
+
+#ifndef _SG_FILE_HXX
+#define _SG_FILE_HXX
+
+
+#ifndef __cplusplus
+# error This library requires C++
+#endif
+
+#include <simgear/compiler.h>
+
+#include <string>
+
+#include <sys/types.h>		// for open(), read(), write(), close()
+#include <sys/stat.h>		// for open(), read(), write(), close()
+#include <fcntl.h>		// for open(), read(), write(), close()
+#if !defined( _MSC_VER )
+#  include <unistd.h>		// for open(), read(), write(), close()
+#endif
+
+#include "iochannel.hxx"
+
+FG_USING_STD(string);
+
+
+class SGFile : public SGIOChannel {
+
+    string file_name;
+    int fp;
+
+public:
+
+    SGFile( const string& file );
+    ~SGFile();
+
+    // open the file based on specified direction
+    bool open( SGProtocolDir dir );
+
+    // read a block of data of specified size
+    int read( char *buf, int length );
+
+    // read a line of data, length is max size of input buffer
+    int readline( char *buf, int length );
+
+    // write data to a file
+    int write( char *buf, int length );
+
+    // write null terminated string to a file
+    int writestring( char *str );
+
+    // close file
+    bool close();
+
+    inline string get_file_name() const { return file_name; }
+};
+
+
+#endif // _SG_FILE_HXX
+
+

simgear/io/sg_serial.cxx

@@ -0,0 +1,155 @@
+// sg_serial.cxx -- Serial I/O routines
+//
+// Written by Curtis Olson, started November 1999.
+//
+// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+
+
+#include <simgear/compiler.h>
+
+#include STL_STRING
+
+#include <simgear/debug/logstream.hxx>
+#include <simgear/serial/serial.hxx>
+
+#include "sg_serial.hxx"
+
+FG_USING_STD(string);
+
+
+SGSerial::SGSerial( const string& device_name, const string& baud_rate ) :
+    save_len(0)
+{
+    set_type( sgSerialType );
+    device = device_name;
+    baud = baud_rate;
+}
+
+
+SGSerial::~SGSerial() {
+}
+
+
+// open the serial port based on specified direction
+bool SGSerial::open( SGProtocolDir dir ) {
+    if ( ! port.open_port( device ) ) {
+	FG_LOG( FG_IO, FG_ALERT, "Error opening device: " << device );
+	return false;
+    }
+
+    // cout << "fd = " << port.fd << endl;
+
+    if ( ! port.set_baud( atoi( baud.c_str() ) ) ) {
+	FG_LOG( FG_IO, FG_ALERT, "Error setting baud: " << baud );
+	return false;
+    }
+
+    return true;
+}
+
+
+// Read data from port.  If we don't get enough data, save what we did
+// get in the save buffer and return 0.  The save buffer will be
+// prepended to subsequent reads until we get as much as is requested.
+
+int SGSerial::read( char *buf, int length ) {
+    int result;
+
+    // read a chunk, keep in the save buffer until we have the
+    // requested amount read
+
+    char *buf_ptr = save_buf + save_len;
+    result = port.read_port( buf_ptr, length - save_len );
+    
+    if ( result + save_len == length ) {
+	strncpy( buf, save_buf, length );
+	save_len = 0;
+
+	return length;
+    }
+    
+    return 0;
+}
+
+
+// read data from port
+int SGSerial::readline( char *buf, int length ) {
+    int result;
+
+    // read a chunk, keep in the save buffer until we have the
+    // requested amount read
+
+    char *buf_ptr = save_buf + save_len;
+    result = port.read_port( buf_ptr, SG_IO_MAX_MSG_SIZE - save_len );
+    save_len += result;
+
+    // look for the end of line in save_buf
+    int i;
+    for ( i = 0; i < save_len && save_buf[i] != '\n'; ++i );
+    if ( save_buf[i] == '\n' ) {
+	result = i + 1;
+    } else {
+	// no end of line yet
+	return 0;
+    }
+
+    // we found an end of line
+
+    // copy to external buffer
+    strncpy( buf, save_buf, result );
+    buf[result] = '\0';
+    FG_LOG( FG_IO, FG_INFO, "fg_serial line = " << buf );
+
+    // shift save buffer
+    for ( i = result; i < save_len; ++i ) {
+	save_buf[ i - result ] = save_buf[i];
+    }
+    save_len -= result;
+
+    return result;
+}
+
+
+// write data to port
+int SGSerial::write( char *buf, int length ) {
+    int result = port.write_port( buf, length );
+
+    if ( result != length ) {
+	FG_LOG( FG_IO, FG_ALERT, "Error writing data: " << device );
+    }
+
+    return result;
+}
+
+
+// write null terminated string to port
+int SGSerial::writestring( char *str ) {
+    int length = strlen( str );
+    return write( str, length );
+}
+
+
+// close the port
+bool SGSerial::close() {
+    if ( ! port.close_port() ) {
+	return false;
+    }
+
+    return true;
+}

simgear/io/sg_serial.hxx

@@ -0,0 +1,88 @@
+// sg_serial.hxx -- Serial I/O routines
+//
+// Written by Curtis Olson, started November 1999.
+//
+// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+
+
+#ifndef _SG_SERIAL_HXX
+#define _SG_SERIAL_HXX
+
+
+#ifndef __cplusplus
+# error This library requires C++
+#endif
+
+#include <simgear/compiler.h>
+
+#include <string>
+
+// #ifdef FG_HAVE_STD_INCLUDES
+// #  include <ctime>
+// #else
+// #  include <time.h>
+// #endif
+
+#include <simgear/serial/serial.hxx>
+
+#include "iochannel.hxx"
+
+FG_USING_STD(string);
+
+
+class SGSerial : public SGIOChannel {
+
+    string device;
+    string baud;
+    FGSerialPort port;
+
+    char save_buf[ 2 * SG_IO_MAX_MSG_SIZE ];
+    int save_len;
+
+public:
+
+    SGSerial( const string& device_name, const string& baud_rate );
+    ~SGSerial();
+
+    // open the serial port based on specified direction
+    bool open( SGProtocolDir dir );
+
+    // read a block of data of specified size
+    int read( char *buf, int length );
+
+    // read a line of data, length is max size of input buffer
+    int readline( char *buf, int length );
+
+    // write data to port
+    int write( char *buf, int length );
+
+    // write null terminated string to port
+    int writestring( char *str );
+
+    // close port
+    bool close();
+
+    inline string get_device() const { return device; }
+    inline string get_baud() const { return baud; }
+};
+
+
+#endif // _SG_SERIAL_HXX
+
+

simgear/io/sg_socket.cxx

@@ -0,0 +1,415 @@
+// sg_socket.cxx -- Socket I/O routines
+//
+// Written by Curtis Olson, started November 1999.
+//
+// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+
+
+#include <simgear/compiler.h>
+
+#if ! defined( _MSC_VER )
+#  include <sys/time.h>		// select()
+#  include <sys/types.h>	// socket(), bind(), select(), accept()
+#  include <sys/socket.h>	// socket(), bind(), listen(), accept()
+#  include <netinet/in.h>	// struct sockaddr_in
+#  include <netdb.h>		// gethostbyname()
+#  include <unistd.h>		// select(), fsync()/fdatasync(), fcntl()
+#  include <fcntl.h>		// fcntl()
+#else
+#  include <sys/timeb.h>	// select()
+#  include <winsock2.h>		// socket(), bind(), listen(), accept(),
+				// struct sockaddr_in, gethostbyname()
+#  include <windows.h>
+#  include <io.h>
+#endif
+
+#if defined( sgi )
+#include <strings.h>
+#endif
+
+#include STL_STRING
+
+#include <simgear/debug/logstream.hxx>
+
+#include "sg_socket.hxx"
+
+FG_USING_STD(string);
+
+
+SGSocket::SGSocket( const string& host, const string& port, 
+		    const string& style ) :
+    save_len(0)
+{
+    hostname = host;
+    port_str = port;
+
+    if ( style == "udp" ) {
+	sock_style = SOCK_DGRAM;
+    } else if ( style == "tcp" ) {
+	sock_style = SOCK_STREAM;
+    } else {
+	sock_style = SOCK_DGRAM;
+	FG_LOG( FG_IO, FG_ALERT,
+		"Error: SGSocket() unknown style = " << style );
+    }
+
+    set_type( sgSocketType );
+}
+
+
+SGSocket::~SGSocket() {
+}
+
+
+int SGSocket::make_server_socket () {
+    struct sockaddr_in name;
+
+#if defined( __CYGWIN__ ) || defined( __CYGWIN32__ ) || defined( sgi ) || defined( _MSC_VER )
+    int length;
+#else
+    socklen_t length;
+#endif
+     
+    // Create the socket.
+    sock = socket (PF_INET, sock_style, 0);
+    if (sock < 0) {
+	FG_LOG( FG_IO, FG_ALERT, 
+		"Error: socket() failed in make_server_socket()" );
+	return -1;
+    }
+     
+    // Give the socket a name.
+    name.sin_family = AF_INET;
+    name.sin_addr.s_addr = INADDR_ANY;
+    name.sin_port = htons(port); // set port to zero to let system pick
+    name.sin_addr.s_addr = htonl (INADDR_ANY);
+    if (bind (sock, (struct sockaddr *) &name, sizeof (name)) < 0) {
+	FG_LOG( FG_IO, FG_ALERT,
+		"Error: bind() failed in make_server_socket()" );
+	return -1;
+    }
+     
+    // Find the assigned port number
+    length = sizeof(struct sockaddr_in);
+    if ( getsockname(sock, (struct sockaddr *) &name, &length) ) {
+	FG_LOG( FG_IO, FG_ALERT,
+		"Error: getsockname() failed in make_server_socket()" );
+	return -1;
+    }
+    port = ntohs(name.sin_port);
+
+    return sock;
+}
+
+
+int SGSocket::make_client_socket () {
+    struct sockaddr_in name;
+    struct hostent *hp;
+     
+    FG_LOG( FG_IO, FG_INFO, "Make client socket()" );
+
+    // Create the socket.
+    sock = socket (PF_INET, sock_style, 0);
+    if (sock < 0) {
+	FG_LOG( FG_IO, FG_ALERT, 
+		"Error: socket() failed in make_client_socket()" );
+	return -1;
+    }
+     
+    // specify address family
+    name.sin_family = AF_INET;
+
+    // get the hosts official name/info
+    hp = gethostbyname( hostname.c_str() );
+
+    // Connect this socket to the host and the port specified on the
+    // command line
+#if defined( __CYGWIN__ ) || defined( __CYGWIN32__ )
+    bcopy(hp->h_addr, (char *)(&(name.sin_addr.s_addr)), hp->h_length);
+#else
+    bcopy(hp->h_addr, &(name.sin_addr.s_addr), hp->h_length);
+#endif
+    name.sin_port = htons(port);
+
+    if ( connect(sock, (struct sockaddr *) &name, 
+		 sizeof(struct sockaddr_in)) < 0 )
+    {
+#ifdef _MSC_VER
+	_close(sock);
+#else
+	std::close(sock);
+#endif
+	FG_LOG( FG_IO, FG_ALERT, 
+		"Error: connect() failed in make_client_socket()" );
+	return -1;
+    }
+
+    return sock;
+}
+
+
+// If specified as a server (in direction for now) open the master
+// listening socket.  If specified as a client (out direction), open a
+// connection to a server.
+bool SGSocket::open( SGProtocolDir dir ) {
+    if ( port_str == "" || port_str == "any" ) {
+	port = 0; 
+    } else {
+	port = atoi( port_str.c_str() );
+    }
+    
+    // client_connections.clear();
+
+    if ( dir == SG_IO_IN ) {
+	// this means server for now
+
+	// Setup socket to listen on.  Set "port" before making this
+	// call.  A port of "0" indicates that we want to let the os
+	// pick any available port.
+	sock = make_server_socket();
+	FG_LOG( FG_IO, FG_INFO, "socket is connected to port = " << port );
+
+	if ( sock_style == SOCK_DGRAM ) {
+	    // Non-blocking UDP
+	    fcntl( sock, F_SETFL, O_NONBLOCK );
+	} else {
+	    // Blocking TCP
+	    // Specify the maximum length of the connection queue
+	    listen( sock, SG_MAX_SOCKET_QUEUE );
+	}
+
+    } else if ( dir == SG_IO_OUT ) {
+	// this means client for now
+
+	sock = make_client_socket();
+
+	if ( sock_style == SOCK_DGRAM ) {
+	    // Non-blocking UDP
+	    fcntl( sock, F_SETFL, O_NONBLOCK );
+	}
+    } else {
+	FG_LOG( FG_IO, FG_ALERT, 
+		"Error:  bidirection mode not available yet for sockets." );
+	return false;
+    }
+
+    if ( sock < 0 ) {
+	FG_LOG( FG_IO, FG_ALERT, "Error opening socket: " << hostname
+		<< ":" << port );
+	return false;
+    }
+
+    return true;
+}
+
+
+// read data from socket (server)
+// read a block of data of specified size
+int SGSocket::read( char *buf, int length ) {
+    int result = 0;
+
+    // check for potential input
+    fd_set ready;
+    FD_ZERO(&ready);
+    FD_SET(sock, &ready);
+    struct timeval tv;
+    tv.tv_sec = 0;
+    tv.tv_usec = 0;
+
+    // test for any input available on sock (returning immediately, even if
+    // nothing)
+    select(32, &ready, 0, 0, &tv);
+
+    if ( FD_ISSET(sock, &ready) ) {
+#ifdef _MSC_VER
+	result = _read( sock, buf, length );
+#else
+	result = std::read( sock, buf, length );
+#endif
+	if ( result != length ) {
+	    FG_LOG( FG_IO, FG_INFO, 
+		    "Warning: read() not enough bytes." );
+	}
+    }
+
+    return result;
+}
+
+
+// read a line of data, length is max size of input buffer
+int SGSocket::readline( char *buf, int length ) {
+    int result = 0;
+
+    // check for potential input
+    fd_set ready;
+    FD_ZERO(&ready);
+    FD_SET(sock, &ready);
+    struct timeval tv;
+    tv.tv_sec = 0;
+    tv.tv_usec = 0;
+
+    // test for any input read on sock (returning immediately, even if
+    // nothing)
+    select(32, &ready, 0, 0, &tv);
+
+    if ( FD_ISSET(sock, &ready) ) {
+	// read a chunk, keep in the save buffer until we have the
+	// requested amount read
+
+	char *buf_ptr = save_buf + save_len;
+#ifdef _MSC_VER
+	result = _read( sock, buf_ptr, SG_IO_MAX_MSG_SIZE - save_len );
+#else
+	result = std::read( sock, buf_ptr, SG_IO_MAX_MSG_SIZE - save_len );
+#endif
+	save_len += result;
+	// cout << "current read = " << buf_ptr << endl;
+	// cout << "current save_buf = " << save_buf << endl;
+	// cout << "save_len = " << save_len << endl;
+    }
+
+    // look for the end of line in save_buf
+    int i;
+    for ( i = 0; i < save_len && save_buf[i] != '\n'; ++i );
+    if ( save_buf[i] == '\n' ) {
+	result = i + 1;
+    } else {
+	// no end of line yet
+	// cout << "no eol found" << endl;
+	return 0;
+    }
+    // cout << "line length = " << result << endl;
+
+    // we found an end of line
+
+    // copy to external buffer
+    strncpy( buf, save_buf, result );
+    buf[result] = '\0';
+    // cout << "sg_socket line = " << buf << endl;
+    
+    // shift save buffer
+    for ( i = result; i < save_len; ++i ) {
+	save_buf[ i - result ] = save_buf[i];
+    }
+    save_len -= result;
+
+    return result;
+}
+
+
+// write data to socket (client)
+int SGSocket::write( char *buf, int length ) {
+    bool error_condition = false;
+
+#ifdef _MSC_VER
+    if ( _write(sock, buf, length) < 0 ) {
+#else
+    if ( std::write(sock, buf, length) < 0 ) {
+#endif
+	FG_LOG( FG_IO, FG_ALERT, "Error writing to socket: " << port );
+	error_condition = true;
+    }
+
+#if 0 
+    // check for any new client connection requests
+    fd_set ready;
+    FD_ZERO(&ready);
+    FD_SET(sock, &ready);
+    struct timeval tv;
+    tv.tv_sec = 0;
+    tv.tv_usec = 0;
+
+    // test for any input on sock (returning immediately, even if
+    // nothing)
+    select(32, &ready, 0, 0, &tv);
+
+    // any new connections?
+    if ( FD_ISSET(sock, &ready) ) {
+	int msgsock = accept(sock, 0, 0);
+	if ( msgsock < 0 ) {
+	    FG_LOG( FG_IO, FG_ALERT, 
+		    "Error: accept() failed in write()" );
+	    return 0;
+	} else {
+	    client_connections.push_back( msgsock );
+	}
+    }
+
+    FG_LOG( FG_IO, FG_INFO, "Client connections = " << 
+	    client_connections.size() );
+    for ( int i = 0; i < (int)client_connections.size(); ++i ) {
+	int msgsock = client_connections[i];
+
+	// read and junk any possible incoming messages.
+	// char junk[ SG_IO_MAX_MSG_SIZE ];
+	// std::read( msgsock, junk, SG_IO_MAX_MSG_SIZE );
+
+	// write the interesting data to the socket
+#ifdef _MSC_VER
+	if ( _write(msgsock, buf, length) < 0 ) {
+#else
+	if ( std::write(msgsock, buf, length) < 0 ) {
+#endif
+	    FG_LOG( FG_IO, FG_ALERT, "Error writing to socket: " << port );
+	    error_condition = true;
+	} else {
+#ifdef _POSIX_SYNCHRONIZED_IO
+	    // fdatasync(msgsock);
+#else
+	    // fsync(msgsock);
+#endif
+	}
+    }
+#endif
+
+    if ( error_condition ) {
+	return 0;
+    }
+
+    return length;
+}
+
+
+// write null terminated string to socket (server)
+int SGSocket::writestring( char *str ) {
+    int length = strlen( str );
+    return write( str, length );
+}
+
+
+// close the port
+bool SGSocket::close() {
+#if 0
+    for ( int i = 0; i < (int)client_connections.size(); ++i ) {
+	int msgsock = client_connections[i];
+#ifdef _MSC_VER
+	_close( msgsock );
+#else
+	std::close( msgsock );
+#endif
+    }
+#endif
+
+#ifdef _MSC_VER
+    _close( sock );
+#else
+    std::close( sock );
+#endif
+    return true;
+}

simgear/io/sg_socket.hxx

@@ -0,0 +1,98 @@
+// sg_socket.hxx -- Socket I/O routines
+//
+// Written by Curtis Olson, started November 1999.
+//
+// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+
+
+#ifndef _SG_SOCKET_HXX
+#define _SG_SOCKET_HXX
+
+
+#ifndef __cplusplus
+# error This library requires C++
+#endif
+
+#include <simgear/compiler.h>
+
+#include <string>
+
+#include <simgear/math/fg_types.hxx>
+
+#include "iochannel.hxx"
+
+FG_USING_STD(string);
+
+
+#define SG_MAX_SOCKET_QUEUE 32
+
+
+class SGSocket : public SGIOChannel {
+
+    string hostname;
+    string port_str;
+
+    char save_buf[ 2 * SG_IO_MAX_MSG_SIZE ];
+    int save_len;
+
+    int sock;
+    short unsigned int port;
+    int sock_style;			// SOCK_STREAM or SOCK_DGRAM
+
+    // make a server (master listening) socket
+    int make_server_socket();
+
+    // make a client socket
+    int make_client_socket();
+
+    // int_list client_connections;
+
+public:
+
+    SGSocket( const string& host, const string& port, const string& style );
+    ~SGSocket();
+
+    // If specified as a server (in direction for now) open the master
+    // listening socket.  If specified as a client (out direction),
+    // open a connection to a server.
+    bool open( SGProtocolDir dir );
+
+    // read data from socket
+    int read( char *buf, int length );
+
+    // read data from socket
+    int readline( char *buf, int length );
+
+    // write data to a socket
+    int write( char *buf, int length );
+
+    // write null terminated string to a socket
+    int writestring( char *str );
+
+    // close file
+    bool close();
+
+    inline string get_hostname() const { return hostname; }
+    inline string get_port_str() const { return port_str; }
+};
+
+
+#endif // _SG_SOCKET_HXX
+
+

simgear/magvar/magvar.cxx

@@ -47,19 +47,20 @@
 
 
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/magvar/magvar.hxx

@@ -16,19 +16,20 @@
 // Released under GPL 3/26/00 EAW
 // Adaptions and modifications for the SimGear project  3/27/2000 CLO
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/math/fg_geodesy.cxx

@@ -56,8 +56,11 @@ void fgGeocToGeod( double lat_geoc, double radius, double
 	*sea_level_r = EQUATORIAL_RADIUS_M*E;
 	*alt = radius - *sea_level_r;
     } else {
+	// cout << "  lat_geoc = " << lat_geoc << endl;
 	t_lat = tan(lat_geoc);
+	// cout << "  tan(t_lat) = " << t_lat << endl;
 	x_alpha = E*EQUATORIAL_RADIUS_M/sqrt(t_lat*t_lat + E*E);
+	// cout << "  x_alpha = " << x_alpha << endl;
 	double tmp = RESQ_M - x_alpha * x_alpha;
 	if ( tmp < 0.0 ) { tmp = 0.0; }
 	mu_alpha = atan2(sqrt(tmp),E*x_alpha);

simgear/math/fg_memory.h

@@ -1,18 +1,19 @@
 // fg_memory.h -- memcpy/bcopy portability declarations
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/math/fg_random.c

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1997  Curtis L. Olson  - curt@infoplane.com
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/math/fg_random.h

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1997  Curtis L. Olson  - curt@infoplane.com
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/math/fg_types.hxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1999  Curtis L. Olson  - curt@flightgear.org
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/math/interpolater.cxx

@@ -6,19 +6,20 @@
 //
 // Copyright (C) 1998  Curtis L. Olson  - curt@me.umn.edu
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/math/interpolater.hxx

@@ -6,19 +6,20 @@
 //
 // Copyright (C) 1998  Curtis L. Olson  - curt@me.umn.edu
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/math/leastsqs.cxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1997  Curtis L. Olson  - curt@infoplane.com
 //
-// This program is free software; you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation; either version 2 of the License, or
-// (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful,
+// This library is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 //

simgear/math/leastsqs.hxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1997  Curtis L. Olson  - curt@infoplane.com
 //
-// This program is free software; you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation; either version 2 of the License, or
-// (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful,
+// This library is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 ///

simgear/math/point3d.hxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1998  Curtis L. Olson  - curt@me.umn.edu
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/math/polar3d.cxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1997  Curtis L. Olson  - curt@infoplane.com
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/math/polar3d.hxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1997  Curtis L. Olson  - curt@infoplane.com
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 
@@ -30,6 +31,8 @@
 #endif                                   
 
 
+#include <math.h>
+
 #include <simgear/constants.h>
 #include <simgear/math/point3d.hxx>
 
@@ -66,7 +69,8 @@ inline Point3D fgCartToPolar3d(const Point3D& cp) {
 // distance.  NOTE: starting point is specifed in radians, distance is
 // specified in meters (and converted internally to radians)
 // ... assumes a spherical world
-inline Point3D calc_lon_lat( const Point3D& orig, double course, double dist ) {
+inline Point3D calc_gc_lon_lat( const Point3D& orig, double course,
+				double dist ) {
     Point3D result;
 
     // lat=asin(sin(lat1)*cos(d)+cos(lat1)*sin(d)*cos(tc))
@@ -96,6 +100,60 @@ inline Point3D calc_lon_lat( const Point3D& orig, double course, double dist ) {
 }
 
 
+// calc course/dist
+inline void calc_gc_course_dist( const Point3D& start, const Point3D& dest, 
+				 double *course, double *dist ) {
+    // d = 2*asin(sqrt((sin((lat1-lat2)/2))^2 + 
+    //            cos(lat1)*cos(lat2)*(sin((lon1-lon2)/2))^2))
+    double tmp1 = sin( (start.y() - dest.y()) / 2 );
+    double tmp2 = sin( (start.x() - dest.x()) / 2 );
+    double d = 2.0 * asin( sqrt( tmp1 * tmp1 + 
+				 cos(start.y()) * cos(dest.y()) * tmp2 * tmp2));
+
+    // We obtain the initial course, tc1, (at point 1) from point 1 to
+    // point 2 by the following. The formula fails if the initial
+    // point is a pole. We can special case this with:
+    //
+    // IF (cos(lat1) < EPS)   // EPS a small number ~ machine precision
+    //   IF (lat1 > 0)
+    //     tc1= pi        //  starting from N pole
+    //   ELSE
+    //     tc1= 0         //  starting from S pole
+    //   ENDIF
+    // ENDIF
+    //
+    // For starting points other than the poles: 
+    // 
+    // IF sin(lon2-lon1)<0       
+    //   tc1=acos((sin(lat2)-sin(lat1)*cos(d))/(sin(d)*cos(lat1)))    
+    // ELSE       
+    //   tc1=2*pi-acos((sin(lat2)-sin(lat1)*cos(d))/(sin(d)*cos(lat1)))    
+    // ENDIF 
+
+    double tc1;
+
+    if ( cos(start.y()) < FG_EPSILON ) {
+	// EPS a small number ~ machine precision
+	if ( start.y() > 0 ) {
+	    tc1 = FG_PI;        // starting from N pole
+	} else {
+	    tc1 = 0;		// starting from S pole
+	}
+    }
+
+    // For starting points other than the poles: 
+
+    double tmp3 = sin(d)*cos(start.y());
+    double tmp4 = sin(dest.y())-sin(start.y())*cos(d);
+    double tmp5 = acos(tmp4/tmp3);
+    if ( sin( dest.x() - start.x() ) < 0 ) {
+	 tc1 = tmp5;
+    } else {
+	 tc1 = 2 * FG_PI - tmp5;
+    }
+
+    *course = tc1;
+    *dist = d * RAD_TO_NM * NM_TO_METER;
+}
+
 #endif // _POLAR_HXX
-
-

simgear/math/vector.cxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1997  Curtis L. Olson  - curt@infoplane.com
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 
@@ -35,18 +36,13 @@ double sgPointLineDistSquared( const sgVec3 p, const sgVec3 p0,
 			       const sgVec3 d ) {
 
     sgVec3 u, u1, v;
-    double ud, dd, tmp;
     
     // u = p - p0
     sgSubVec3(u, p, p0);
 
     // calculate the projection, u1, of u along d.
     // u1 = ( dot_prod(u, d) / dot_prod(d, d) ) * d;
-    ud = sgScalarProductVec3(u, d);
-    dd = sgScalarProductVec3(d, d);
-    tmp = ud / dd;
-
-    sgScaleVec3(u1, d, tmp);;
+    sgScaleVec3( u1, d, sgScalarProductVec3(u,d) / sgScalarProductVec3(d,d) );
 
     // v = u - u1 = vector from closest point on line, p1, to the
     // original point, p.
@@ -81,3 +77,18 @@ double sgdPointLineDistSquared( const sgdVec3 p, const sgdVec3 p0,
 
     return ( sgdScalarProductVec3(v, v) );
 }
+
+
+// This is a quicker form of
+// sgMakeMatTrans4( sgMat4 sgTrans, sgVec3 trans )
+// sgPostMultMat4( sgMat, sgTRANS );
+void sgPostMultMat4ByTransMat4( sgMat4 src, const sgVec3 trans )
+{
+    for( int i=0; i<4; i++) {
+	for( int j=0; j<3; j++ ) {
+	    src[i][j] += (src[i][3] * trans[j]);
+	}
+    }
+}
+
+

simgear/math/vector.hxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1997  Curtis L. Olson  - curt@infoplane.com
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 
@@ -83,6 +84,14 @@ inline void sgmap_vec_onto_cur_surface_plane( sgVec3 normal,
 }
 
 
+inline void sgCopyNegateVec4( sgVec4 dst, sgVec4 src )
+{
+	dst [ 0 ] = -src [ 0 ] ;
+	dst [ 1 ] = -src [ 1 ] ;
+	dst [ 2 ] = -src [ 2 ] ;
+	dst [ 3 ] = -src [ 3 ] ;
+}
+
 // Given a point p, and a line through p0 with direction vector d,
 // find the shortest distance (squared) from the point to the line
 double sgPointLineDistSquared( const sgVec3 p, const sgVec3 p0,
@@ -93,6 +102,10 @@ double sgPointLineDistSquared( const sgVec3 p, const sgVec3 p0,
 double sgdPointLineDistSquared( const sgdVec3 p, const sgdVec3 p0,
 				const sgdVec3 d );
 
+// This is same as
+// sgMakeMatTrans4( sgMat4 sgTrans, sgVec3 trans )
+// sgPostMultMat4( sgMat, sgTRANS );
+void sgPostMultMat4ByTransMat4( sgMat4 src, const sgVec3 trans );
 
 #endif // _VECTOR_HXX
 

simgear/misc/Makefile.am

@@ -11,6 +11,7 @@ lib_LIBRARIES = libsgmisc.a
 include_HEADERS = \
 	fgpath.hxx \
 	fgstream.hxx \
+	props.hxx \
 	stopwatch.hxx \
 	strutils.hxx \
 	texcoord.hxx \
@@ -19,6 +20,7 @@ include_HEADERS = \
 libsgmisc_a_SOURCES = \
 	fgpath.cxx \
 	fgstream.cxx \
+	props.cxx \
 	strutils.cxx \
 	texcoord.cxx \
 	zfstream.cxx

simgear/misc/fgpath.cxx

@@ -6,19 +6,20 @@
 //
 // Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/misc/fgpath.hxx

@@ -6,19 +6,20 @@
 //
 // Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/misc/fgstream.cxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1998  Bernie Bright - bbright@c031.aone.net.au
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/misc/fgstream.hxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1998  Bernie Bright - bbright@c031.aone.net.au
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/misc/props.hxx

@@ -0,0 +1,355 @@
+// props.hxx -- declaration of SimGear Property Manager.
+//
+// Written by David Megginson - david@megginson.com
+//
+// This module is in the PUBLIC DOMAIN.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+//
+// See props.html for documentation [replace with URL when available].
+//
+// $Id$
+
+#ifndef __PROPS_HXX
+#define __PROPS_HXX
+
+#include <stdio.h>
+
+#include <string>
+#include <map>
+
+using std::string;
+using std::map;
+
+
+
+////////////////////////////////////////////////////////////////////////
+// Values.
+////////////////////////////////////////////////////////////////////////
+
+/**
+ * Abstract representation of a FlightGear value.
+ *
+ * This value is designed to be fairly robust -- it can exist without
+ * a specified value, it can be any of several types, and it can
+ * be tied to an external variable without disrupting any existing
+ * pointers or references to the value.  Some basic type conversions
+ * are also handled automatically.
+ *
+ * Values also have attributes that control whether they can be read
+ * from, written to, or archived (i.e. saved to disk).
+ */
+class SGValue
+{
+public:
+
+				// External getters
+  typedef bool (*bool_getter)();
+  typedef int (*int_getter)();
+  typedef float (*float_getter)();
+  typedef double (*double_getter)();
+  typedef const string &(*string_getter)();
+
+				// External setters
+  typedef void (*bool_setter)(bool);
+  typedef void (*int_setter)(int);
+  typedef void (*float_setter)(float);
+  typedef void (*double_setter)(double);
+  typedef void (*string_setter)(const string &);
+
+  enum Type {
+    UNKNOWN,			// no value assigned yet
+    BOOL,			// boolean
+    INT,			// integer
+    FLOAT,			// floating point
+    DOUBLE,			// double precision
+    STRING			// text
+  };
+
+  SGValue ();
+  virtual ~SGValue ();
+
+				// Meta information.
+  virtual Type getType () const { return _type; }
+  virtual bool isTied () const { return _tied; }
+
+				// Accessors.
+  virtual bool getBoolValue () const;
+  virtual int getIntValue () const;
+  virtual float getFloatValue () const;
+  virtual double getDoubleValue () const;
+  virtual const string &getStringValue () const;
+
+				// Setters.
+  virtual bool setBoolValue (bool value);
+  virtual bool setIntValue (int value);
+  virtual bool setFloatValue (float value);
+  virtual bool setDoubleValue (double value);
+  virtual bool setStringValue (const string &value);
+  virtual bool setUnknownValue (const string &value);
+
+				// Tie to external variables.
+  virtual bool tieBool (bool_getter getter,
+			bool_setter setter = 0,
+			bool useDefault = true);
+  virtual bool tieInt (int_getter getter,
+		       int_setter setter = 0,
+		       bool useDefault = true);
+  virtual bool tieFloat (float_getter getter,
+			 float_setter setter = 0,
+			 bool useDefault = true);
+  virtual bool tieDouble (double_getter getter,
+			  double_setter setter = 0,
+			  bool useDefault = true);
+  virtual bool tieString (string_getter getter,
+			  string_setter setter = 0,
+			  bool useDefault = true);
+
+				// Untie from external variables.
+  virtual bool untie ();
+
+protected:
+
+  bool getRawBool () const;
+  int getRawInt () const;
+  float getRawFloat () const;
+  double getRawDouble () const;
+  const string &getRawString () const;
+
+  bool setRawBool (bool value);
+  bool setRawInt (int value);
+  bool setRawFloat (float value);
+  bool setRawDouble (double value);
+  bool setRawString (const string & value);
+
+private:
+
+  Type _type;
+  bool _tied;
+
+  mutable string string_val;
+
+				// The value is one of the following...
+  union {
+
+    bool bool_val;
+    int int_val;
+    float float_val;
+    double double_val;
+
+    struct {
+      bool_setter setter;
+      bool_getter getter;
+    } bool_func;
+
+    struct {
+      int_setter setter;
+      int_getter getter;
+    } int_func;
+
+    struct {
+      void * obj;
+      float_setter setter;
+      float_getter getter;
+    } float_func;
+
+    struct {
+      void * obj;
+      double_setter setter;
+      double_getter getter;
+    } double_func;
+
+    struct {
+      string_setter setter;
+      string_getter getter;
+    } string_func;
+
+  } _value;
+
+};
+
+
+
+////////////////////////////////////////////////////////////////////////
+// Top-level manager.
+////////////////////////////////////////////////////////////////////////
+
+
+/**
+ * A list of FlightGear properties.
+ *
+ * This list associates names (conventional written as paths,
+ * i.e. "/foo/bar/hack") with SGValue classes.  Once an SGValue
+ * object is associated with the name, the association is
+ * permanent -- it is safe to keep a pointer or reference.
+ * however, that the type of a value may change if it is tied
+ * to a variable.
+ *
+ * When iterating through the list, the value type is
+ *
+ *   pair<string,SGValue>
+ *
+ * To get the name from a const_iterator, use
+ *
+ *   it->first
+ *
+ * and to get the value from a const_iterator, use
+ *
+ *   it->second
+ */
+class SGPropertyList
+{
+public:
+  typedef map<string, SGValue> value_map;
+
+  typedef SGValue::bool_getter bool_getter;
+  typedef SGValue::int_getter int_getter;
+  typedef SGValue::float_getter float_getter;
+  typedef SGValue::double_getter double_getter;
+  typedef SGValue::string_getter string_getter;
+
+  typedef SGValue::bool_setter bool_setter;
+  typedef SGValue::int_setter int_setter;
+  typedef SGValue::float_setter float_setter;
+  typedef SGValue::double_setter double_setter;
+  typedef SGValue::string_setter string_setter;
+
+  typedef value_map::value_type value_type;
+  typedef value_map::size_type size_type;
+  typedef value_map::const_iterator const_iterator;
+
+  SGPropertyList ();
+  virtual ~SGPropertyList ();
+
+  virtual size_type size () const { return _props.size(); }
+
+  virtual const_iterator begin () const { return _props.begin(); }
+  virtual const_iterator end () const { return _props.end(); }
+
+  virtual SGValue * getValue (const string &name, bool create = false);
+  virtual const SGValue * getValue (const string &name) const;
+
+  virtual bool getBoolValue (const string &name) const;
+  virtual int getIntValue (const string &name) const;
+  virtual float getFloatValue (const string &name) const;
+  virtual double getDoubleValue (const string &name) const;
+  virtual const string &getStringValue (const string &name) const;
+
+  virtual bool setBoolValue (const string &name, bool value);
+  virtual bool setIntValue (const string &name, int value);
+  virtual bool setFloatValue (const string &name, float value);
+  virtual bool setDoubleValue (const string &name, double value);
+  virtual bool setStringValue (const string &name, const string &value);
+  virtual bool setUnknownValue (const string &name, const string &value);
+
+  virtual bool tieBool (const string &name,
+			bool_getter getter,
+			bool_setter setter = 0,
+			bool useDefault = true);
+  virtual bool tieInt (const string &name,
+		       int_getter getter,
+		       int_setter setter = 0,
+		       bool useDefault = true);
+  virtual bool tieFloat (const string &name,
+			 float_getter getter,
+			 float_setter setter = 0,
+			 bool useDefault = true);
+  virtual bool tieDouble (const string &name,
+			  double_getter getter,
+			  double_setter setter = 0,
+			  bool useDefault = true);
+  virtual bool tieString (const string &name,
+			  string_getter getter,
+			  string_setter setter = 0,
+			  bool useDefault = true);
+
+  virtual bool untie (const string &name);
+
+private:
+  value_map _props;
+};
+
+
+
+////////////////////////////////////////////////////////////////////////
+// Tree/node/directory view.
+////////////////////////////////////////////////////////////////////////
+
+
+/**
+ * Tree view of a property list.
+ *
+ * This class provides a virtual tree view of a property list, without
+ * actually constructing a tree -- the view always stays in sync with
+ * the property list itself.
+ *
+ * This class is designed to be used for setup and configuration; it is
+ * optimized for ease of use rather than performance, and shouldn't be
+ * used inside a tight loop.
+ *
+ * Every node is actually just a path together with a pointer to
+ * the real property list and a few convenient operations; to the
+ * user, however, it looks like a node in a tree or a file system,
+ * with the regular operations such as getChild and getParent.
+ *
+ * Note that a node may be both a branch and a leaf -- that is, it
+ * may have a value itself and it may have children.  Here is a simple
+ * example that prints the names of all of the different nodes inside 
+ * "/controls":
+ *
+ *   SGPropertyNode controls("/controls", current_property_list);
+ *   SGPropertyNode child;
+ *   int size = controls.size();
+ *   for (int i = 0; i < size; i++) {
+ *     if (controls.getChild(child, i))
+ *       cout << child.getName() << endl;
+ *     else
+ *       cerr << "Failed to read child " << i << endl;
+ *   }
+ */
+class SGPropertyNode
+{
+public:
+				// Constructor and destructor
+  SGPropertyNode (const string &path = "", SGPropertyList * props = 0);
+  virtual ~SGPropertyNode ();
+
+				// Accessor and setter for the internal
+				// path.
+  virtual const string &getPath () const { return _path; }
+  virtual void setPath (const string &path);
+
+				// Accessor and setter for the real
+				// property list.
+  virtual SGPropertyList * getPropertyList () { return _props; }
+  virtual void setPropertyList (SGPropertyList * props) {
+    _props = props;
+  }
+
+				// Accessors for derived information.
+  virtual int size () const;
+  virtual const string &getName () const;
+  virtual SGValue * getValue ();
+  virtual bool getParent (SGPropertyNode &parent) const;
+  virtual bool getChild (SGPropertyNode &child, int n) const;
+
+private:
+  string _path;
+  mutable string _name;		// for pointer persistence only
+  SGPropertyList * _props;
+};
+
+
+
+////////////////////////////////////////////////////////////////////////
+// Global property manager.
+////////////////////////////////////////////////////////////////////////
+
+extern SGPropertyList current_properties;
+
+
+#endif __PROPS_HXX
+
+// end of props.hxx

simgear/misc/stopwatch.hxx

@@ -7,15 +7,20 @@
  *
  * Copyright (C) 1997,1998 Todd Veldhuizen <tveldhui@seurat.uwaterloo.ca>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
  *
- * This program is distributed in the hope that it will be useful,
+ * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA  02111-1307, USA.
  *
  * Suggestions:          blitz-suggest@cybervision.com
  * Bugs:                 blitz-bugs@cybervision.com

simgear/misc/strutils.cxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1998  Bernie Bright - bbright@c031.aone.net.au
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/misc/strutils.hxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1998  Bernie Bright - bbright@c031.aone.net.au
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/misc/texcoord.cxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1999  Curtis L. Olson  - curt@flightgear.org
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 
@@ -113,17 +114,40 @@ point_list calc_tex_coords( const FGBucket& b, const point_list& geod_nodes,
     // cout << "dx = " << dx << " dy = " << dy << endl;
 
     bool do_shift = false;
-    Point3D mod_shift;
+    // Point3D mod_shift;
     if ( (dx > HALF_MAX_TEX_COORD) || (dy > HALF_MAX_TEX_COORD) ) {
 	// structure is too big, we'll just have to shift it so that
 	// tmin = (0,0).  This messes up subsequent texture scaling,
 	// but is the best we can do.
 	// cout << "SHIFTING" << endl;
 	do_shift = true;
-	tmin.setx( (double)( (int)tmin.x() + 1 ) );
-	tmin.sety( (double)( (int)tmin.y() + 1 ) );
+	if ( tmin.x() < 0 ) {
+	    tmin.setx( (double)( (int)tmin.x() - 1 ) );
+	} else {
+	    tmin.setx( (int)tmin.x() );
+	}
+	if ( tmin.y() < 0 ) {
+	    tmin.sety( (double)( (int)tmin.y() - 1 ) );
+	} else {
+	    tmin.sety( (int)tmin.y() );
+	}
 	// cout << "found tmin = " << tmin << endl;
     } else {
+	if ( tmin.x() < 0 ) {
+	    tmin.setx( ( (int)(tmin.x() / HALF_MAX_TEX_COORD) - 1 )
+		       * HALF_MAX_TEX_COORD );
+	} else {
+	    tmin.setx( ( (int)(tmin.x() / HALF_MAX_TEX_COORD) )
+		       * HALF_MAX_TEX_COORD );
+	}
+	if ( tmin.y() < 0 ) {
+	    tmin.sety( ( (int)(tmin.y() / HALF_MAX_TEX_COORD) - 1 )
+		       * HALF_MAX_TEX_COORD );
+	} else {
+	    tmin.sety( ( (int)(tmin.y() / HALF_MAX_TEX_COORD) )
+		       * HALF_MAX_TEX_COORD );
+	}
+#if 0
 	// structure is small enough ... we can mod it so we can
 	// properly scale the texture coordinates later.
 	// cout << "MODDING" << endl;
@@ -142,7 +166,7 @@ point_list calc_tex_coords( const FGBucket& b, const point_list& geod_nodes,
 	// At this point we know that the object is < 16 wide in
 	// texture coordinate space.  If the modulo of the tmin is >
 	// the mod of the tmax at this point, then we know that the
-	// starting tex coordinate for the tmin > 16 so we can shift
+	// starting tex coordinate for the tmax > 16 so we can shift
 	// everything down by 16 and get it within the 0-32 range.
 
 	if ( x1 > x2 ) {
@@ -156,7 +180,7 @@ point_list calc_tex_coords( const FGBucket& b, const point_list& geod_nodes,
 	} else {
 	    mod_shift.sety( 0.0 );
 	}
-
+#endif
 	// cout << "mod_shift = " << mod_shift << endl;
     }
 
@@ -169,8 +193,9 @@ point_list calc_tex_coords( const FGBucket& b, const point_list& geod_nodes,
 	t = basic_tex_coord( p, degree_width, degree_height, scale );
 	// cout << "second t = " << t << endl;
 
-	if ( do_shift ) {
-	    adjusted_t = t - tmin;
+	// if ( do_shift ) {
+	adjusted_t = t - tmin;
+#if 0
 	} else {
 	    adjusted_t.setx( fmod(t.x() + mod_shift.x(), MAX_TEX_COORD) );
 	    while ( adjusted_t.x() < 0 ) { 
@@ -182,7 +207,7 @@ point_list calc_tex_coords( const FGBucket& b, const point_list& geod_nodes,
 	    }
 	    // cout << "adjusted_t " << adjusted_t << endl;
 	}
-
+#endif
 	if ( adjusted_t.x() < FG_EPSILON ) {
 	    adjusted_t.setx( 0.0 );
 	}

simgear/misc/texcoord.hxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1999  Curtis L. Olson  - curt@flightgear.org
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 
@@ -41,5 +42,3 @@ point_list calc_tex_coords( const FGBucket& b, const point_list& geod_nodes,
 
 
 #endif // _TEXCOORD_HXX
-
-

simgear/misc/zfstream.cxx

@@ -5,19 +5,20 @@
 //
 // Copyright (C) 1998  Bernie Bright - bbright@c031.aone.net.au
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/misc/zfstream.hxx

@@ -5,19 +5,20 @@
 //
 // Copyright (C) 1998  Bernie Bright - bbright@c031.aone.net.au
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/screen/screen-dump.cxx

@@ -2,19 +2,20 @@
 //
 // Contributed by Richard Kaszeta <bofh@me.umn.edu>, started October 1999.
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/screen/screen-dump.hxx

@@ -2,19 +2,20 @@
 //
 // Contributed by Richard Kaszeta <bofh@me.umn.edu>, started October 1999.
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/serial/serial.cxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1998  Curtis L. Olson - curt@flightgear.org
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/serial/serial.hxx

@@ -4,19 +4,20 @@
 //
 // Copyright (C) 1998  Curtis L. Olson - curt@flightgear.org
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/sky/Makefile.am

@@ -1,11 +1,23 @@
-noinst_LIBRARIES = libSky.a
+includedir = @includedir@/sky
 
-libSky_a_SOURCES = \
-	dome.cxx dome.hxx \
-	moon.cxx moon.hxx \
-	oursun.cxx oursun.hxx \
-	sky.cxx sky.hxx \
-	sphere.cxx sphere.hxx \
-	stars.cxx stars.hxx
+lib_LIBRARIES = libsgsky.a
 
-INCLUDES += -I$(top_builddir) -I$(top_builddir)/src
+include_HEADERS = \
+	cloud.hxx \
+	dome.hxx \
+	moon.hxx \
+	oursun.hxx \
+	sky.hxx \
+	sphere.hxx \
+	stars.hxx
+
+libsgsky_a_SOURCES = \
+	cloud.cxx \
+	dome.cxx \
+	moon.cxx \
+	oursun.cxx \
+	sky.cxx \
+	sphere.cxx \
+	stars.cxx
+
+INCLUDES += -I$(top_builddir)

simgear/sky/cloud.cxx

@@ -0,0 +1,258 @@
+// cloud.cxx -- model a single cloud layer
+//
+// Written by Curtis Olson, started June 2000.
+//
+// Copyright (C) 2000  Curtis L. Olson  - curt@flightgear.org
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+#include <iostream>
+
+#include <plib/sg.h>
+#include <plib/ssg.h>
+
+#include <simgear/math/fg_random.h>
+#include <simgear/math/point3d.hxx>
+#include <simgear/math/polar3d.hxx>
+
+#include "cloud.hxx"
+
+
+// Constructor
+SGCloudLayer::SGCloudLayer( void ) {
+}
+
+
+// Destructor
+SGCloudLayer::~SGCloudLayer( void ) {
+}
+
+
+// build the moon object
+void SGCloudLayer::build( double s, double asl, double thickness,
+			  double transition, ssgSimpleState *state )
+{
+    scale = 4000.0;
+
+    layer_asl = asl;
+    layer_thickness = thickness;
+    layer_transition = transition;
+
+    size = s;
+    last_lon = last_lat = -999.0f;
+
+    layer_state = state;
+
+    cl = new ssgColourArray( 4 );
+    vl = new ssgVertexArray( 4 );
+    tl = new ssgTexCoordArray( 4 );
+
+    // build the cloud layer
+    sgVec4 color;
+    sgVec3 vertex;
+    sgVec2 tc;
+    sgSetVec4( color, 1.0f, 1.0f, 1.0f, 1.0f );
+
+    sgSetVec3( vertex, -size, -size, 0.0f );
+    sgVec2 base;
+    sgSetVec2( base, fg_random(), fg_random() );
+    sgSetVec2( tc, base[0], base[1] );
+    cl->add( color );
+    vl->add( vertex );
+    tl->add( tc );
+
+    sgSetVec3( vertex, size, -size, 0.0f );
+    sgSetVec2( tc, base[0] + size / scale, base[1] );
+    cl->add( color );
+    vl->add( vertex );
+    tl->add( tc );
+
+    sgSetVec3( vertex, -size, size, 0.0f );
+    sgSetVec2( tc, base[0], base[1] + size / scale );
+    cl->add( color );
+    vl->add( vertex );
+    tl->add( tc );
+
+    sgSetVec3( vertex, size, size, 0.0f );
+    sgSetVec2( tc, base[0] + size / scale, base[1] + size / scale );
+    cl->add( color );
+    vl->add( vertex );
+    tl->add( tc );
+
+    ssgLeaf *layer = 
+	new ssgVtxTable ( GL_TRIANGLE_STRIP, vl, NULL, tl, cl );
+    layer->setState( layer_state );
+
+    // force a repaint of the moon colors with arbitrary defaults
+    repaint( color );
+
+    // build the ssg scene graph sub tree for the sky and connected
+    // into the provide scene graph branch
+    layer_transform = new ssgTransform;
+
+    // moon_transform->addKid( halo );
+    layer_transform->addKid( layer );
+
+    layer_root = new ssgRoot;
+    layer_root->addKid( layer_transform );
+}
+
+
+// repaint the cloud layer colors
+bool SGCloudLayer::repaint( sgVec3 fog_color ) {
+    float *color;
+
+    for ( int i = 0; i < 4; ++i ) {
+	color = cl->get( i );
+	sgCopyVec4( color, fog_color );
+    }
+
+    return true;
+}
+
+
+// reposition the cloud layer at the specified origin and orientation
+// lon specifies a rotation about the Z axis
+// lat specifies a rotation about the new Y axis
+// spin specifies a rotation about the new Z axis (and orients the
+// sunrise/set effects
+bool SGCloudLayer::reposition( sgVec3 p, sgVec3 up, double lon, double lat,
+			       double alt )
+{
+    sgMat4 T1, LON, LAT;
+    sgVec3 axis;
+
+    // combine p and asl (meters) to get translation offset
+    sgVec3 asl_offset;
+    sgCopyVec3( asl_offset, up );
+    sgNormalizeVec3( asl_offset );
+    if ( alt <= layer_asl ) {
+	sgScaleVec3( asl_offset, layer_asl );
+    } else {
+	sgScaleVec3( asl_offset, layer_asl + layer_thickness );
+    }
+    // cout << "asl_offset = " << asl_offset[0] << "," << asl_offset[1]
+    //      << "," << asl_offset[2] << endl;
+    sgAddVec3( asl_offset, p );
+    // cout << "  asl_offset = " << asl_offset[0] << "," << asl_offset[1]
+    //      << "," << asl_offset[2] << endl;
+
+    // Translate to zero elevation
+    // Point3D zero_elev = current_view.get_cur_zero_elev();
+    // xglTranslatef( zero_elev.x(), zero_elev.y(), zero_elev.z() );
+    sgMakeTransMat4( T1, asl_offset );
+
+    // printf("  Translated to %.2f %.2f %.2f\n", 
+    //        zero_elev.x, zero_elev.y, zero_elev.z );
+
+    // Rotate to proper orientation
+    // printf("  lon = %.2f  lat = %.2f\n", 
+    //        lon * SGD_RADIANS_TO_DEGREES,
+    //        lat * SGD_RADIANS_TO_DEGREES);
+    // xglRotatef( lon * SGD_RADIANS_TO_DEGREES, 0.0, 0.0, 1.0 );
+    sgSetVec3( axis, 0.0, 0.0, 1.0 );
+    sgMakeRotMat4( LON, lon * SGD_RADIANS_TO_DEGREES, axis );
+
+    // xglRotatef( 90.0 - f->get_Latitude() * SGD_RADIANS_TO_DEGREES,
+    //             0.0, 1.0, 0.0 );
+    sgSetVec3( axis, 0.0, 1.0, 0.0 );
+    sgMakeRotMat4( LAT, 90.0 - lat * SGD_RADIANS_TO_DEGREES, axis );
+
+    sgMat4 TRANSFORM;
+
+    sgCopyMat4( TRANSFORM, T1 );
+    sgPreMultMat4( TRANSFORM, LON );
+    sgPreMultMat4( TRANSFORM, LAT );
+
+    sgCoord layerpos;
+    sgSetCoord( &layerpos, TRANSFORM );
+
+    layer_transform->setTransform( &layerpos );
+
+    // now calculate update texture coordinates
+    if ( last_lon < -900 ) {
+	last_lon = lon;
+	last_lat = lat;
+    }
+
+    if ( lon != last_lon || lat != last_lat ) {
+	Point3D start( last_lon, last_lat, 0.0 );
+	Point3D dest( lon, lat, 0.0 );
+	double course, dist;
+	calc_gc_course_dist( dest, start, &course, &dist );
+	// cout << "course = " << course << ", dist = " << dist << endl;
+
+	double xoff = cos( course ) * dist / (2 * scale);
+	double yoff = sin( course ) * dist / (2 * scale);
+
+	// cout << "xoff = " << xoff << ", yoff = " << yoff << endl;
+
+	float *base, *tc;
+	base = tl->get( 0 );
+
+	base[0] += xoff;
+	while ( base[0] > 1.0 ) { base[0] -= 1.0; }
+	while ( base[0] < 0.0 ) { base[0] += 1.0; }
+
+	base[1] += yoff;
+	while ( base[1] > 1.0 ) { base[1] -= 1.0; }
+	while ( base[1] < 0.0 ) { base[1] += 1.0; }
+
+	// cout << "base = " << base[0] << "," << base[1] << endl;
+
+	tc = tl->get( 1 );
+	sgSetVec2( tc, base[0] + size / scale, base[1] );
+ 
+	tc = tl->get( 2 );
+	sgSetVec2( tc, base[0], base[1] + size / scale );
+ 
+	tc = tl->get( 3 );
+	sgSetVec2( tc, base[0] + size / scale, base[1] + size / scale );
+ 
+	last_lon = lon;
+	last_lat = lat;
+    }
+
+    return true;
+}
+
+
+void SGCloudLayer::draw() {
+    ssgCullAndDraw( layer_root );
+}
+
+
+// make an ssgSimpleState for a cloud layer given the named texture
+ssgSimpleState *SGCloudMakeState( const string &path ) {
+    ssgSimpleState *state = new ssgSimpleState();
+
+    state->setTexture( (char *)path.c_str() );
+    state->setShadeModel( GL_SMOOTH );
+    state->disable( GL_LIGHTING );
+    state->disable( GL_CULL_FACE );
+    state->enable( GL_TEXTURE_2D );
+    state->enable( GL_COLOR_MATERIAL );
+    state->setColourMaterial( GL_AMBIENT_AND_DIFFUSE );
+    state->setMaterial( GL_EMISSION, 0, 0, 0, 1 );
+    state->setMaterial( GL_SPECULAR, 0, 0, 0, 1 );
+    state->enable( GL_BLEND );
+    state->enable( GL_ALPHA_TEST );
+    state->setAlphaClamp( 0.01 );
+
+    return state;
+}

simgear/sky/cloud.hxx

@@ -0,0 +1,118 @@
+// cloud.hxx -- model a single cloud layer
+//
+// Written by Curtis Olson, started June 2000.
+//
+// Copyright (C) 2000  Curtis L. Olson  - curt@flightgear.org
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
+//
+// $Id$
+
+
+#ifndef _SG_CLOUD_HXX_
+#define _SG_CLOUD_HXX_
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <simgear/compiler.h>
+
+#include <plib/ssg.h>
+
+#include STL_STRING
+FG_USING_STD(string);
+
+
+#define SG_MAX_CLOUD_TYPES 4	// change this if we add/remove cloud
+				// types en the enum below
+
+enum SGCloudType {
+    SG_CLOUD_OVERCAST = 0,
+    SG_CLOUD_MOSTLY_CLOUDY = 1,
+    SG_CLOUD_MOSTLY_SUNNY = 2,
+    SG_CLOUD_CIRRUS = 3,
+};
+
+
+class SGCloudLayer {
+
+private:
+
+    ssgRoot *layer_root;
+    ssgTransform *layer_transform;
+    ssgSimpleState *layer_state;
+
+    ssgColourArray *cl; 
+    ssgVertexArray *vl;
+    ssgTexCoordArray *tl;
+
+    // height above sea level (meters)
+    float layer_asl;
+    float layer_thickness;
+    float layer_transition;
+    float size;
+    float scale;
+
+    // for handling texture coordinates to simulate cloud movement
+    // from winds, and to simulate the clouds being tied to ground
+    // position, not view position
+    // double xoff, yoff;
+    double last_lon, last_lat;
+
+public:
+
+    // Constructor
+    SGCloudLayer( void );
+
+    // Destructor
+    ~SGCloudLayer( void );
+
+    // build the cloud object
+    void build( double size, double asl, double thickness,
+		double transition, ssgSimpleState *state );
+
+    // repaint the cloud colors based on current value of sun_angle,
+    // sky, and fog colors.  This updates the color arrays for
+    // ssgVtxTable.
+    // sun angle in degrees relative to verticle
+    // 0 degrees = high noon
+    // 90 degrees = sun rise/set
+    // 180 degrees = darkest midnight
+    bool repaint( sgVec3 fog_color );
+
+    // reposition the cloud layer at the specified origin and
+    // orientation
+    // lon specifies a rotation about the Z axis
+    // lat specifies a rotation about the new Y axis
+    // spin specifies a rotation about the new Z axis (and orients the
+    // sunrise/set effects
+    bool reposition( sgVec3 p, sgVec3 up, double lon, double lat, double alt );
+
+    // draw the cloud layer
+    void draw();
+
+    inline float get_asl() const { return layer_asl; }
+    inline float get_thickness() const { return layer_thickness; }
+    inline float get_transition() const { return layer_transition; }
+};
+
+
+// make an ssgSimpleState for a cloud layer given the named texture
+ssgSimpleState *SGCloudMakeState( const string &path );
+
+
+#endif // _SG_CLOUD_HXX_

simgear/sky/dome.cxx

@@ -5,19 +5,20 @@
 //
 // Copyright (C) 1997-2000  Curtis L. Olson  - curt@flightgear.org
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 
@@ -35,7 +36,8 @@
 #include <GL/glut.h>
 #include <simgear/xgl/xgl.h>
 
-#include <simgear/constants.h>
+#include <plib/sg.h>
+
 #include <simgear/debug/logstream.hxx>
 #include <simgear/math/fg_random.h>
 
@@ -108,6 +110,8 @@ ssgBranch * SGSkyDome::build( ) {
     dome_state->disable( GL_TEXTURE_2D );
     dome_state->enable( GL_COLOR_MATERIAL );
     dome_state->setColourMaterial( GL_AMBIENT_AND_DIFFUSE );
+    dome_state->setMaterial( GL_EMISSION, 0, 0, 0, 1 );
+    dome_state->setMaterial( GL_SPECULAR, 0, 0, 0, 1 );
     dome_state->disable( GL_BLEND );
     dome_state->disable( GL_ALPHA_TEST );
 
@@ -137,7 +141,7 @@ ssgBranch * SGSkyDome::build( ) {
     sgSetVec3( center_vertex, 0.0, 0.0, CENTER_ELEV );
 
     for ( i = 0; i < 12; i++ ) {
-	theta = (i * 30.0) * DEG_TO_RAD;
+	theta = (i * 30.0) * SGD_DEGREES_TO_RADIANS;
 
 	sgSetVec3( upper_vertex[i],
 		   cos(theta) * UPPER_RADIUS,
@@ -215,7 +219,7 @@ ssgBranch * SGSkyDome::build( ) {
     // force a repaint of the sky colors with ugly defaults
     sgVec3 fog_color;
     sgSetVec3( fog_color, 1.0, 1.0, 1.0 );
-    repaint( color, fog_color, 0.0 );
+    repaint( color, fog_color, 0.0, 5000.0 );
 
     // build the ssg scene graph sub tree for the sky and connected
     // into the provide scene graph branch
@@ -268,7 +272,8 @@ ssgBranch * SGSkyDome::build( ) {
 // 0 degrees = high noon
 // 90 degrees = sun rise/set
 // 180 degrees = darkest midnight
-bool SGSkyDome::repaint( sgVec4 sky_color, sgVec4 fog_color, double sun_angle )
+bool SGSkyDome::repaint( sgVec4 sky_color, sgVec4 fog_color, double sun_angle,
+			 double vis )
 {
     double diff;
     sgVec3 outer_param, outer_amt, outer_diff;
@@ -309,11 +314,28 @@ bool SGSkyDome::repaint( sgVec4 sky_color, sgVec4 fog_color, double sun_angle )
     // First, recalulate the basic colors
     //
 
+    sgVec4 center_color;
     sgVec4 upper_color[12];
     sgVec4 middle_color[12];
     sgVec4 lower_color[12];
     sgVec4 bottom_color[12];
 
+    double vis_factor;
+
+    if ( vis < 3000.0 ) {
+	vis_factor = (vis - 1000.0) / 2000.0;
+	if ( vis_factor < 0.0 ) {
+	    vis_factor = 0.0;
+	}
+    } else {
+	vis_factor = 1.0;
+    }
+
+    for ( j = 0; j < 3; j++ ) {
+	diff = sky_color[j] - fog_color[j];
+	center_color[j] = sky_color[j] - diff * ( 1.0 - vis_factor );
+    }
+
     for ( i = 0; i < 6; i++ ) {
 	for ( j = 0; j < 3; j++ ) {
 	    diff = sky_color[j] - fog_color[j];
@@ -321,8 +343,9 @@ bool SGSkyDome::repaint( sgVec4 sky_color, sgVec4 fog_color, double sun_angle )
 	    // printf("sky = %.2f  fog = %.2f  diff = %.2f\n", 
 	    //        l->sky_color[j], l->fog_color[j], diff);
 
-	    upper_color[i][j] = sky_color[j] - diff * 0.3;
-	    middle_color[i][j] = sky_color[j] - diff * 0.9 + middle_amt[j];
+	    upper_color[i][j] = sky_color[j] - diff * ( 1.0 - vis_factor * 0.7);
+	    middle_color[i][j] = sky_color[j] - diff * ( 1.0 - vis_factor * 0.1)
+		+ middle_amt[j];
 	    lower_color[i][j] = fog_color[j] + outer_amt[j];
 
 	    if ( upper_color[i][j] > 1.0 ) { upper_color[i][j] = 1.0; }
@@ -361,8 +384,9 @@ bool SGSkyDome::repaint( sgVec4 sky_color, sgVec4 fog_color, double sun_angle )
 	    // printf("sky = %.2f  fog = %.2f  diff = %.2f\n", 
 	    //        sky_color[j], fog_color[j], diff);
 
-	    upper_color[i][j] = sky_color[j] - diff * 0.3;
-	    middle_color[i][j] = sky_color[j] - diff * 0.9 + middle_amt[j];
+	    upper_color[i][j] = sky_color[j] - diff * ( 1.0 - vis_factor * 0.7);
+	    middle_color[i][j] = sky_color[j] - diff * ( 1.0 - vis_factor * 0.1)
+		+ middle_amt[j];
 	    lower_color[i][j] = fog_color[j] + outer_amt[j];
 
 	    if ( upper_color[i][j] > 1.0 ) { upper_color[i][j] = 1.0; }
@@ -407,7 +431,7 @@ bool SGSkyDome::repaint( sgVec4 sky_color, sgVec4 fog_color, double sun_angle )
     slot = center_disk_cl->get( counter++ );
     // sgVec4 red;
     // sgSetVec4( red, 1.0, 0.0, 0.0, 1.0 );
-    sgCopyVec4( slot, sky_color );
+    sgCopyVec4( slot, center_color );
     for ( i = 11; i >= 0; i-- ) {
 	slot = center_disk_cl->get( counter++ );
 	sgCopyVec4( slot, upper_color[i] );
@@ -482,19 +506,21 @@ bool SGSkyDome::reposition( sgVec3 p, double lon, double lat, double spin ) {
     //        zero_elev.x, zero_elev.y, zero_elev.z );
 
     // Rotate to proper orientation
-    // printf("  lon = %.2f  lat = %.2f\n", FG_Longitude * RAD_TO_DEG,
-    //        FG_Latitude * RAD_TO_DEG);
-    // xglRotatef( f->get_Longitude() * RAD_TO_DEG, 0.0, 0.0, 1.0 );
+    // printf("  lon = %.2f  lat = %.2f\n",
+    //        lon * SGD_RADIANS_TO_DEGREES,
+    //        lat * SGD_RADIANS_TO_DEGREES);
+    // xglRotatef( lon * SGD_RADIANS_TO_DEGREES, 0.0, 0.0, 1.0 );
     sgSetVec3( axis, 0.0, 0.0, 1.0 );
-    sgMakeRotMat4( LON, lon * RAD_TO_DEG, axis );
+    sgMakeRotMat4( LON, lon * SGD_RADIANS_TO_DEGREES, axis );
 
-    // xglRotatef( 90.0 - f->get_Latitude() * RAD_TO_DEG, 0.0, 1.0, 0.0 );
+    // xglRotatef( 90.0 - f->get_Latitude() * SGD_RADIANS_TO_DEGREES,
+    //             0.0, 1.0, 0.0 );
     sgSetVec3( axis, 0.0, 1.0, 0.0 );
-    sgMakeRotMat4( LAT, 90.0 - lat * RAD_TO_DEG, axis );
+    sgMakeRotMat4( LAT, 90.0 - lat * SGD_RADIANS_TO_DEGREES, axis );
 
-    // xglRotatef( l->sun_rotation * RAD_TO_DEG, 0.0, 0.0, 1.0 );
+    // xglRotatef( l->sun_rotation * SGD_RADIANS_TO_DEGREES, 0.0, 0.0, 1.0 );
     sgSetVec3( axis, 0.0, 0.0, 1.0 );
-    sgMakeRotMat4( SPIN, spin * RAD_TO_DEG, axis );
+    sgMakeRotMat4( SPIN, spin * SGD_RADIANS_TO_DEGREES, axis );
 
     sgMat4 TRANSFORM;
 

simgear/sky/dome.hxx

@@ -5,19 +5,20 @@
 //
 // Copyright (C) 1997-2000  Curtis L. Olson  - curt@flightgear.org
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 
@@ -69,7 +70,8 @@ public:
     // 0 degrees = high noon
     // 90 degrees = sun rise/set
     // 180 degrees = darkest midnight
-    bool repaint( sgVec3 sky_color, sgVec3 fog_color, double sun_angle );
+    bool repaint( sgVec3 sky_color, sgVec3 fog_color, double sun_angle,
+		  double vis );
 
     // reposition the sky at the specified origin and orientation
     // lon specifies a rotation about the Z axis

simgear/sky/moon.cxx

@@ -7,26 +7,32 @@
 //
 // Separated out rendering pieces and converted to ssg by Curt Olson,
 // March 2000
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 
 
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
 #include <stdio.h>
 #include <iostream>
 
+#include <plib/sg.h>
 #include <plib/ssg.h>
 
 #include <simgear/constants.h>
@@ -42,9 +48,6 @@ static int sgMoonOrbPreDraw( ssgEntity *e ) {
     glDisable( GL_DEPTH_TEST );
     glDisable( GL_FOG );
     glBlendFunc ( GL_SRC_ALPHA, GL_ONE ) ;
-    // sgVec4 color;
-    // sgSetVec4( color, 0.0, 0.0, 0.0, 1.0 );
-    // glMaterialfv ( GL_FRONT_AND_BACK, GL_AMBIENT, color ) ;
 
     return true;
 }
@@ -56,6 +59,14 @@ static int sgMoonOrbPostDraw( ssgEntity *e ) {
     glEnable( GL_FOG );
     glBlendFunc ( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA ) ;
 
+    /* test
+    glDisable( GL_LIGHTING );
+    glDisable( GL_CULL_FACE );
+    glEnable( GL_COLOR_MATERIAL );
+    glColorMaterial( GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE );
+    glEnable( GL_CULL_FACE );
+    glEnable( GL_LIGHTING ); */
+
     return true;
 }
 
@@ -103,8 +114,9 @@ ssgBranch * SGMoon::build( FGPath path, double moon_size ) {
     orb_state->enable( GL_TEXTURE_2D );
     orb_state->enable( GL_COLOR_MATERIAL );
     orb_state->setColourMaterial( GL_DIFFUSE );
-    orb_state->setMaterial( GL_AMBIENT, 0.0, 0.0, 0.0, 1.0 );
-    orb_state->setMaterial( GL_SPECULAR, 0.0, 0.0, 0.0, 1.0 );
+    orb_state->setMaterial( GL_AMBIENT, 0, 0, 0, 1.0 );
+    orb_state->setMaterial( GL_EMISSION, 0, 0, 0, 1 );
+    orb_state->setMaterial( GL_SPECULAR, 0, 0, 0, 1 );
     orb_state->enable( GL_BLEND );
     orb_state->enable( GL_ALPHA_TEST );
     orb_state->setAlphaClamp( 0.01 );
@@ -138,8 +150,8 @@ ssgBranch * SGMoon::build( FGPath path, double moon_size ) {
     halo_state->disable( GL_COLOR_MATERIAL );
     halo_state->setColourMaterial( GL_AMBIENT_AND_DIFFUSE );
     halo_state->setMaterial ( GL_AMBIENT_AND_DIFFUSE, 1, 1, 1, 1 ) ;
-    halo_state -> setMaterial ( GL_EMISSION, 0, 0, 0, 1 ) ;
-    halo_state -> setMaterial ( GL_SPECULAR, 0, 0, 0, 1 ) ;
+    halo_state->setMaterial ( GL_EMISSION, 0, 0, 0, 1 ) ;
+    halo_state->setMaterial ( GL_SPECULAR, 0, 0, 0, 1 ) ;
     // halo_state -> setShininess ( 0 ) ;
     halo_state->enable( GL_ALPHA_TEST );
     halo_state->setAlphaClamp(0.01);
@@ -192,7 +204,7 @@ ssgBranch * SGMoon::build( FGPath path, double moon_size ) {
 // 90 degrees = moon rise/set
 // 180 degrees = darkest midnight
 bool SGMoon::repaint( double moon_angle ) {
-    if ( moon_angle * RAD_TO_DEG < 100 ) {
+    if ( moon_angle * SGD_RADIANS_TO_DEGREES < 100 ) {
 	// else moon is well below horizon (so no point in repainting it)
     
 	// x_10 = moon_angle^10
@@ -210,7 +222,10 @@ bool SGMoon::repaint( double moon_angle ) {
 		   (ambient * 11.0) - 3.0, // minimum value = 0.3
 		   (ambient * 12.0) - 3.6, // minimum value = 0.0
 		   0.5 );
-    
+
+	// temp test, forces the color to always be white
+	// sgSetVec4( color, 1.0, 1.0, 1.0, 1.0 );
+
 	if (color[0] > 1.0) color[0] = 1.0;
 	if (color[1] > 1.0) color[1] = 1.0;
 	if (color[2] > 1.0) color[2] = 1.0;
@@ -244,16 +259,17 @@ bool SGMoon::reposition( sgVec3 p, double angle,
     sgSetVec3( axis, 0.0, 0.0, -1.0 );
     sgMakeRotMat4( GST, angle, axis );
 
-    // xglRotatef(((RAD_TO_DEG * rightAscension)- 90.0), 0.0, 0.0, 1.0);
+    // xglRotatef( ((SGD_RADIANS_TO_DEGREES * rightAscension)- 90.0),
+    //             0.0, 0.0, 1.0);
     sgSetVec3( axis, 0.0, 0.0, 1.0 );
-    sgMakeRotMat4( RA, (rightAscension * RAD_TO_DEG) - 90.0, axis );
+    sgMakeRotMat4( RA, (rightAscension * SGD_RADIANS_TO_DEGREES) - 90.0, axis );
 
-    // xglRotatef((RAD_TO_DEG * declination), 1.0, 0.0, 0.0);
+    // xglRotatef((SGD_RADIANS_TO_DEGREES * declination), 1.0, 0.0, 0.0);
     sgSetVec3( axis, 1.0, 0.0, 0.0 );
-    sgMakeRotMat4( DEC, declination * RAD_TO_DEG, axis );
+    sgMakeRotMat4( DEC, declination * SGD_RADIANS_TO_DEGREES, axis );
 
-    // xglTranslatef(0,60000,0);
-    sgSetVec3( v, 0.0, 60000.0, 0.0 );
+    // xglTranslatef(0,moon_dist);
+    sgSetVec3( v, 0.0, moon_dist, 0.0 );
     sgMakeTransMat4( T2, v );
 
     sgMat4 TRANSFORM;
@@ -270,3 +286,4 @@ bool SGMoon::reposition( sgVec3 p, double angle,
 
     return true;
 }
+

simgear/sky/moon.hxx

@@ -8,19 +8,20 @@
 // Separated out rendering pieces and converted to ssg by Curt Olson,
 // March 2000
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/sky/oursun.cxx

@@ -7,30 +7,34 @@
 //
 // Separated out rendering pieces and converted to ssg by Curt Olson,
 // March 2000
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 
 
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
 #include <stdio.h>
 #include <iostream>
 
+#include <plib/sg.h>
 #include <plib/ssg.h>
 
-#include <simgear/constants.h>
-
 #include "sphere.hxx"
 #include "oursun.hxx"
 
@@ -200,10 +204,13 @@ ssgBranch * SGSun::build( FGPath path, double sun_size ) {
     orb_state = new ssgSimpleState();
     orb_state->setShadeModel( GL_SMOOTH );
     orb_state->disable( GL_LIGHTING );
+    // orb_state->enable( GL_LIGHTING );
     orb_state->disable( GL_CULL_FACE );
     orb_state->disable( GL_TEXTURE_2D );
     orb_state->enable( GL_COLOR_MATERIAL );
     orb_state->setColourMaterial( GL_AMBIENT_AND_DIFFUSE );
+    orb_state->setMaterial( GL_EMISSION, 0, 0, 0, 1 );
+    orb_state->setMaterial( GL_SPECULAR, 0, 0, 0, 1 );
     orb_state->disable( GL_BLEND );
     orb_state->disable( GL_ALPHA_TEST );
 
@@ -227,13 +234,15 @@ ssgBranch * SGSun::build( FGPath path, double sun_size ) {
     path.append( "halo.rgba" );
     halo_state = new ssgSimpleState();
     halo_state->setTexture( (char *)path.c_str() );
-    // halo_state->setTexture( sun_texid );
     halo_state->enable( GL_TEXTURE_2D );
     halo_state->disable( GL_LIGHTING );
+    // halo_state->enable( GL_LIGHTING );
     halo_state->setShadeModel( GL_SMOOTH );
     halo_state->disable( GL_CULL_FACE );
     halo_state->enable( GL_COLOR_MATERIAL );
     halo_state->setColourMaterial( GL_AMBIENT_AND_DIFFUSE );
+    halo_state->setMaterial( GL_EMISSION, 0, 0, 0, 1 );
+    halo_state->setMaterial( GL_SPECULAR, 0, 0, 0, 1 );
     halo_state->enable( GL_ALPHA_TEST );
     halo_state->setAlphaClamp(0.01);
     halo_state->enable ( GL_BLEND ) ;
@@ -270,9 +279,9 @@ ssgBranch * SGSun::build( FGPath path, double sun_size ) {
     // into the provide scene graph branch
     sun_transform = new ssgTransform;
 
-    sun_transform->addKid( halo );
     halo->setCallback( SSG_CALLBACK_PREDRAW, sgSunHaloPreDraw );
     halo->setCallback( SSG_CALLBACK_POSTDRAW, sgSunHaloPostDraw );
+    sun_transform->addKid( halo );
     sun_transform->addKid( orb );
 
     return sun_transform;
@@ -285,7 +294,7 @@ ssgBranch * SGSun::build( FGPath path, double sun_size ) {
 // 90 degrees = sun rise/set
 // 180 degrees = darkest midnight
 bool SGSun::repaint( double sun_angle ) {
-    if ( sun_angle * RAD_TO_DEG < 100 ) {
+    if ( sun_angle * SGD_RADIANS_TO_DEGREES < 100 ) {
 	// else sun is well below horizon (so no point in repainting it)
     
 	// x_10 = sun_angle^10
@@ -303,6 +312,9 @@ bool SGSun::repaint( double sun_angle ) {
 		   (ambient * 12.0) - 3.6, // minimum value = 0.0
 		   1.0 );
     
+	// temp test, forces the color to always be white
+	// sgSetVec4( color, 1.0, 1.0, 1.0, 1.0 );
+
 	if (color[0] > 1.0) color[0] = 1.0;
 	if (color[1] > 1.0) color[1] = 1.0;
 	if (color[2] > 1.0) color[2] = 1.0;
@@ -336,16 +348,17 @@ bool SGSun::reposition( sgVec3 p, double angle,
     sgSetVec3( axis, 0.0, 0.0, -1.0 );
     sgMakeRotMat4( GST, angle, axis );
 
-    // xglRotatef(((RAD_TO_DEG * rightAscension)- 90.0), 0.0, 0.0, 1.0);
+    // xglRotatef( ((SGD_RADIANS_TO_DEGREES * rightAscension)- 90.0),
+    //             0.0, 0.0, 1.0);
     sgSetVec3( axis, 0.0, 0.0, 1.0 );
-    sgMakeRotMat4( RA, (rightAscension * RAD_TO_DEG) - 90.0, axis );
+    sgMakeRotMat4( RA, (rightAscension * SGD_RADIANS_TO_DEGREES) - 90.0, axis );
 
-    // xglRotatef((RAD_TO_DEG * declination), 1.0, 0.0, 0.0);
+    // xglRotatef((SGD_RADIANS_TO_DEGREES * declination), 1.0, 0.0, 0.0);
     sgSetVec3( axis, 1.0, 0.0, 0.0 );
-    sgMakeRotMat4( DEC, declination * RAD_TO_DEG, axis );
+    sgMakeRotMat4( DEC, declination * SGD_RADIANS_TO_DEGREES, axis );
 
-    // xglTranslatef(0,60000,0);
-    sgSetVec3( v, 0.0, 60000.0, 0.0 );
+    // xglTranslatef(0,sun_dist);
+    sgSetVec3( v, 0.0, sun_dist, 0.0 );
     sgMakeTransMat4( T2, v );
 
     sgMat4 TRANSFORM;

simgear/sky/oursun.hxx

@@ -8,19 +8,20 @@
 // Separated out rendering pieces and converted to ssg by Curt Olson,
 // March 2000
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 

simgear/sky/sky.cxx

@@ -5,30 +5,48 @@
 //
 // Copyright (C) 1997-2000  Curtis L. Olson  - curt@flightgear.org
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 
 
-#include <plib/ssg.h>		// plib include
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <plib/sg.h>
+#include <plib/ssg.h>
+
+#include <simgear/math/fg_random.h>
 
 #include "sky.hxx"
 
 
 // Constructor
 SGSky::SGSky( void ) {
+    effective_visibility = visibility = 10000.0;
+
+    // near cloud visibility state variables
+    in_puff = false;
+    puff_length = 0;
+    puff_progression = 0;
+    ramp_up = 0.15;
+    ramp_down = 0.15;
+    // ramp_up = 4.0;
+    // ramp_down = 4.0;
 }
 
 
@@ -39,35 +57,64 @@ SGSky::~SGSky( void ) {
 
 // initialize the sky and connect the components to the scene graph at
 // the provided branch
-ssgBranch * SGSky::build(  double sun_size, double moon_size,
-			   int nplanets, sgdVec3 *planet_data,
-			   double planet_dist,
-			   int nstars, sgdVec3 *star_data, double star_dist )
+void SGSky::build(  double sun_size, double moon_size,
+		    int nplanets, sgdVec3 *planet_data,
+		    double planet_dist,
+		    int nstars, sgdVec3 *star_data, double star_dist )
 {
-    sky_selector = new ssgSelector;
-    sky_transform = new ssgTransform;
+    pre_root = new ssgRoot;
+    post_root = new ssgRoot;
+
+    pre_selector = new ssgSelector;
+    post_selector = new ssgSelector;
+
+    pre_transform = new ssgTransform;
+    post_transform = new ssgTransform;
 
     dome = new SGSkyDome;
-    sky_transform -> addKid( dome->build() );
+    pre_transform -> addKid( dome->build() );
 
     planets = new SGStars;
-    sky_transform -> addKid( planets->build(nplanets, planet_data,
+    pre_transform -> addKid( planets->build(nplanets, planet_data,
 					    planet_dist)
 			     );
 
     stars = new SGStars;
-    sky_transform -> addKid( stars->build(nstars, star_data, star_dist) );
+    pre_transform -> addKid( stars->build(nstars, star_data, star_dist) );
     
     moon = new SGMoon;
-    sky_transform -> addKid( moon->build(tex_path, moon_size) );
+    pre_transform -> addKid( moon->build(tex_path, moon_size) );
 
     oursun = new SGSun;
-    sky_transform -> addKid( oursun->build(tex_path, sun_size) );
+    pre_transform -> addKid( oursun->build(tex_path, sun_size) );
 
-    sky_selector->addKid( sky_transform );
-    sky_selector->clrTraversalMaskBits( SSGTRAV_HOT );
+    pre_selector->addKid( pre_transform );
+    pre_selector->clrTraversalMaskBits( SSGTRAV_HOT );
 
-    return sky_selector;
+    post_selector->addKid( post_transform );
+    post_selector->clrTraversalMaskBits( SSGTRAV_HOT );
+
+    pre_root->addKid( pre_selector );
+    post_root->addKid( post_selector );
+
+    // add the cloud ssgStates to the material lib
+    FGPath cloud_path;
+
+    cloud_path.set( tex_path.str() );
+    cloud_path.append( "overcast.rgb" );
+    cloud_mats[SG_CLOUD_OVERCAST] = SGCloudMakeState( cloud_path.str() );
+
+    cloud_path.set( tex_path.str() );
+    cloud_path.append( "mostlycloudy.rgba" );
+    cloud_mats[SG_CLOUD_MOSTLY_CLOUDY] = SGCloudMakeState( cloud_path.str() );
+
+    cloud_path.set( tex_path.str() );
+    cloud_path.append( "mostlysunny.rgba" );
+    cloud_mats[SG_CLOUD_MOSTLY_SUNNY] = SGCloudMakeState( cloud_path.str() );
+
+    cloud_path.set( tex_path.str() );
+    cloud_path.append( "cirrus.rgba" );
+    cloud_mats[SG_CLOUD_CIRRUS] = SGCloudMakeState( cloud_path.str() );
 }
 
 
@@ -83,11 +130,21 @@ bool SGSky::repaint( sgVec4 sky_color, sgVec4 fog_color,
 		     int nplanets, sgdVec3 *planet_data,
 		     int nstars, sgdVec3 *star_data )
 {
-    dome->repaint( sky_color, fog_color, sun_angle );
-    oursun->repaint( sun_angle );
-    moon->repaint( moon_angle );
-    planets->repaint( sun_angle, nplanets, planet_data );
-    stars->repaint( sun_angle, nstars, star_data );
+    if ( effective_visibility > 1000.0 ) {
+	enable();
+	dome->repaint( sky_color, fog_color, sun_angle, effective_visibility );
+	oursun->repaint( sun_angle );
+	moon->repaint( moon_angle );
+	planets->repaint( sun_angle, nplanets, planet_data );
+	stars->repaint( sun_angle, nstars, star_data );
+
+	for ( int i = 0; i < (int)cloud_layers.size(); ++i ) {
+	    cloud_layers[i]->repaint( fog_color );
+	}
+    } else {
+	// turn off sky
+	disable();
+    }
 
     return true;
 }
@@ -100,8 +157,8 @@ bool SGSky::repaint( sgVec4 sky_color, sgVec4 fog_color,
 // spin specifies a rotation about the new Z axis (this allows
 // additional orientation for the sunrise/set effects and is used by
 // the skydome and perhaps clouds.
-bool SGSky::reposition( sgVec3 view_pos, sgVec3 zero_elev, 
-			double lon, double lat, double spin,
+bool SGSky::reposition( sgVec3 view_pos, sgVec3 zero_elev, sgVec3 view_up,
+			double lon, double lat, double alt, double spin,
 			double gst, 
 			double sun_ra, double sun_dec, double sun_dist,
 			double moon_ra, double moon_dec, double moon_dist )
@@ -113,5 +170,223 @@ bool SGSky::reposition( sgVec3 view_pos, sgVec3 zero_elev,
     planets->reposition( view_pos, angle );
     stars->reposition( view_pos, angle );
 
+    for ( int i = 0; i < (int)cloud_layers.size(); ++i ) {
+	cloud_layers[i]->reposition( zero_elev, view_up, lon, lat, alt );
+    }
+
     return true;
 }
+
+
+// draw background portions of the sky ... do this before you draw the
+// rest of your scene.
+void SGSky::preDraw() {
+    ssgCullAndDraw( pre_root );
+}
+
+
+// draw translucent clouds ... do this after you've drawn all the
+// oapaque elements of your scene.
+void SGSky::postDraw( float alt ) {
+    float slop = 5.0;		// if we are closer than this to a cloud layer,
+				// don't draw clouds
+
+    int in_cloud = -1;		// cloud we are in
+
+    // check where we are relative to the cloud layers
+    for ( int i = 0; i < (int)cloud_layers.size(); ++i ) {
+	float asl = cloud_layers[i]->get_asl();
+	float thickness = cloud_layers[i]->get_thickness();
+
+	if ( alt < asl - slop ) {
+	    // below cloud layer
+	} else if ( alt < asl + thickness + slop ) {
+	    // in cloud layer
+
+	    // bail now and don't draw any clouds
+	    in_cloud = i;
+	} else {
+	    // above cloud layer
+	}
+    }
+
+    // determine rendering order
+    int pos = 0;
+    while ( pos < (int)cloud_layers.size() && 
+	    alt > cloud_layers[pos]->get_asl())
+    {
+	++pos;
+    }
+
+    if ( pos == 0 ) {
+	// we are below all the cloud layers, draw top to bottom
+	for ( int i = cloud_layers.size() - 1; i >= 0; --i ) {
+	    if ( i != in_cloud ) {
+		cloud_layers[i]->draw();
+	    }
+	}
+    } else if ( pos >= (int)cloud_layers.size() ) {
+	// we are above all the cloud layers, draw bottom to top
+	for ( int i = 0; i < (int)cloud_layers.size(); ++i ) {
+	    if ( i != in_cloud ) {
+		cloud_layers[i]->draw();
+	    }
+	}
+    } else {
+	// we are between cloud layers, draw lower layers bottom to
+	// top and upper layers top to bottom
+	for ( int i = 0; i < pos; ++i ) {
+	    if ( i != in_cloud ) {
+		cloud_layers[i]->draw();
+	    }
+	}
+	for ( int i = cloud_layers.size() - 1; i >= pos; --i ) {
+	    if ( i != in_cloud ) {
+		cloud_layers[i]->draw();
+	    }
+	}
+    }
+}
+
+ 
+void SGSky::add_cloud_layer( double asl, double thickness,
+			     double transition, double span,
+			     ssgSimpleState *state ) {
+    SGCloudLayer *layer = new SGCloudLayer;
+    layer->build( span, asl, thickness, transition, state );
+
+    layer_list_iterator current = cloud_layers.begin();
+    layer_list_iterator last = cloud_layers.end();
+    while ( current != last && (*current)->get_asl() < asl ) {
+	++current;
+    }
+
+    if ( current != last ) {
+	cloud_layers.insert( current, layer );
+    } else {
+	cloud_layers.push_back( layer );
+    }
+
+    for ( int i = 0; i < (int)cloud_layers.size(); ++i ) {
+	cout << "layer " << i << " = " << cloud_layers[i]->get_asl() << endl;
+    }
+    cout << endl;
+}
+
+
+void SGSky::add_cloud_layer( double asl, double thickness,
+			     double transition, double span,
+			     const string &tex_path ) {
+    ssgSimpleState *state = SGCloudMakeState( tex_path );
+    add_cloud_layer( asl, thickness, transition, span, state );
+}
+
+
+void SGSky::add_cloud_layer( double asl, double thickness,
+			     double transition, double span,
+			     SGCloudType type ) {
+    if ( type > 0 && type < SG_MAX_CLOUD_TYPES ) {
+	add_cloud_layer( asl, thickness, transition, span, cloud_mats[type] );
+    }
+}
+
+
+// modify the current visibility based on cloud layers, thickness,
+// transition range, and simulated "puffs".
+void SGSky::modify_vis( float alt, float time_factor ) {
+    float effvis = visibility;
+
+    for ( int i = 0; i < (int)cloud_layers.size(); ++i ) {
+	float asl = cloud_layers[i]->get_asl();
+	float thickness = cloud_layers[i]->get_thickness();
+	float transition = cloud_layers[i]->get_transition();
+
+	double ratio = 1.0;
+
+	if ( alt < asl - transition ) {
+	    // below cloud layer
+	    ratio = 1.0;
+	} else if ( alt < asl ) {
+	    // in lower transition
+	    ratio = (asl - alt) / transition;
+	} else if ( alt < asl + thickness ) {
+	    // in cloud layer
+	    ratio = 0.0;
+	} else if ( alt < asl + thickness + transition ) {
+	    // in upper transition
+	    ratio = (alt - (asl + thickness)) / transition;
+	} else {
+	    // above cloud layer
+	    ratio = 1.0;
+	}
+
+	// accumulate effects from multiple cloud layers
+	effvis *= ratio;
+
+	if ( ratio < 1.0 ) {
+	    if ( ! in_puff ) {
+		// calc chance of entering cloud puff
+		double rnd = fg_random();
+		double chance = rnd * rnd * rnd;
+		if ( chance > 0.95 /* * (diff - 25) / 50.0 */ ) {
+		    in_puff = true;
+		    puff_length = fg_random() * 2.0; // up to 2 seconds
+		    puff_progression = 0.0;
+		}
+	    }
+
+	    if ( in_puff ) {
+		// modify actual_visibility based on puff envelope
+
+		if ( puff_progression <= ramp_up ) {
+		    double x = 0.5 * SGD_PI * puff_progression / ramp_up;
+		    double factor = 1.0 - sin( x );
+		    // cout << "ramp up = " << puff_progression
+		    //      << "  factor = " << factor << endl;
+		    effvis = effvis * factor;
+		} else if ( puff_progression >= ramp_up + puff_length ) {
+		    double x = 0.5 * SGD_PI * 
+			(puff_progression - (ramp_up + puff_length)) /
+			ramp_down;
+		    double factor = sin( x );
+		    // cout << "ramp down = " 
+		    //      << puff_progression - (ramp_up + puff_length) 
+		    //      << "  factor = " << factor << endl;
+		    effvis = effvis * factor;
+		} else {
+		    effvis = 0.0;
+		}
+
+		/* cout << "len = " << puff_length
+		   << "  x = " << x 
+		   << "  factor = " << factor
+		   << "  actual_visibility = " << actual_visibility 
+		   << endl; */
+
+		// time_factor = ( global_multi_loop * 
+		//                 current_options.get_speed_up() ) /
+		//                (double)current_options.get_model_hz();
+
+		puff_progression += time_factor;
+		// cout << "time factor = " << time_factor << endl;
+
+		/* cout << "gml = " << global_multi_loop 
+		   << "  speed up = " << current_options.get_speed_up()
+		   << "  hz = " << current_options.get_model_hz() << endl;
+		   */ 
+
+		if ( puff_progression > puff_length + ramp_up + ramp_down) {
+		    in_puff = false; 
+		}
+	    }
+
+	    // never let visibility drop below 25 meters
+	    if ( effvis <= 25.0 ) {
+		effvis = 25.0;
+	    }
+	}
+    } // for
+
+    effective_visibility = effvis;
+}
+

simgear/sky/sky.hxx

@@ -5,19 +5,20 @@
 //
 // Copyright (C) 1997-2000  Curtis L. Olson  - curt@flightgear.org
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 
@@ -33,28 +34,56 @@
 
 #include <plib/ssg.h>		// plib include
 
+#include <simgear/compiler.h>
 #include <simgear/misc/fgpath.hxx>
 
+#include <vector>
+
+#include "cloud.hxx"
 #include "dome.hxx"
 #include "moon.hxx"
 #include "oursun.hxx"
 #include "stars.hxx"
 
+FG_USING_STD(vector);
+
+
+typedef vector < SGCloudLayer* > layer_list_type;
+typedef layer_list_type::iterator layer_list_iterator;
+typedef layer_list_type::const_iterator layer_list_const_iterator;
+
 
 class SGSky {
 
+private:
+
     // components of the sky
     SGSkyDome *dome;
     SGSun *oursun;
     SGMoon *moon;
     SGStars *planets;
     SGStars *stars;
+    ssgSimpleState *cloud_mats[SG_MAX_CLOUD_TYPES];
+    layer_list_type cloud_layers;
 
-    ssgSelector *sky_selector;
-    ssgTransform *sky_transform;
+    ssgRoot *pre_root, *post_root;
+
+    ssgSelector *pre_selector, *post_selector;
+    ssgTransform *pre_transform, *post_transform;
 
     FGPath tex_path;
 
+    // visibility
+    float visibility;
+    float effective_visibility;
+
+    // near cloud visibility state variables
+    bool in_puff;
+    double puff_length;		// in seconds
+    double puff_progression;	// in seconds
+    double ramp_up;		// in seconds
+    double ramp_down;		// in seconds
+
 public:
 
     // Constructor
@@ -65,9 +94,9 @@ public:
 
     // initialize the sky and connect the components to the scene
     // graph at the provided branch
-    ssgBranch *build( double sun_size, double moon_size,
-		      int nplanets, sgdVec3 *planet_data, double planet_dist,
-		      int nstars, sgdVec3 *star_data, double star_dist );
+    void build( double sun_size, double moon_size,
+		int nplanets, sgdVec3 *planet_data, double planet_dist,
+		int nstars, sgdVec3 *star_data, double star_dist );
 
     // repaint the sky components based on current value of sun_angle,
     // sky, and fog colors.
@@ -76,7 +105,7 @@ public:
     // 0 degrees = high noon
     // 90 degrees = sun rise/set
     // 180 degrees = darkest midnight
-    bool repaint( sgVec4 sky_color, sgVec4 fog_color, 
+    bool repaint( sgVec4 sky_color, sgVec4 fog_color,
 		  double sun_angle, double moon_angle,
 		  int nplanets, sgdVec3 *planet_data,
 		  int nstars, sgdVec3 *star_data );
@@ -88,23 +117,62 @@ public:
     // spin specifies a rotation about the new Z axis (this allows
     // additional orientation for the sunrise/set effects and is used
     // by the skydome and perhaps clouds.
-    bool reposition( sgVec3 view_pos, sgVec3 zero_elev, 
-		     double lon, double lat, double spin,
+    bool reposition( sgVec3 view_pos, sgVec3 zero_elev, sgVec3 view_up,
+		     double lon, double lat, double alt, double spin,
 		     double gst, 
 		     double sun_ra, double sun_dec, double sun_dist,
 		     double moon_ra, double moon_dec, double moon_dist );
 
+    // modify the given visibility based on cloud layers, thickness,
+    // transition range, and simulated "puffs".
+    void modify_vis( float alt, float time_factor );
+
+    // draw background portions of the sky ... do this before you draw
+    // the rest of your scene.
+    void preDraw();
+
+    // draw translucent clouds ... do this after you've drawn all the
+    // oapaque elements of your scene.
+    void postDraw( float alt );
+
     // specify the texture path (optional, defaults to current directory)
     inline void texture_path( const string& path ) {
 	tex_path = FGPath( path );
     }
 
-    // enable the sky in the scene graph (default)
-    inline void enable() { sky_selector->select( 1 ); }
+    // enable the sky
+    inline void enable() {
+	pre_selector->select( 1 );
+	post_selector->select( 1 );
+    }
 
     // disable the sky in the scene graph.  The leaf node is still
     // there, how ever it won't be traversed on by ssgCullandRender()
-    inline void disable() { sky_selector->select( 0 ); }
+    inline void disable() {
+	pre_selector->select( 0 );
+	post_selector->select( 0 );
+    }
+
+    // add a cloud layer (above sea level in meters)
+    void add_cloud_layer( double asl, double thickness,
+			  double transition, double span,
+			  SGCloudType type );
+    void add_cloud_layer( double asl, double thickness,
+			  double transition, double span,
+			  const string &tex_path );
+    void add_cloud_layer( double asl, double thickness,
+			  double transition, double span,
+			  ssgSimpleState *state );
+
+    inline int get_num_layers() const { return cloud_layers.size(); }
+    inline SGCloudLayer *get_cloud_layer( int i ) const {
+	return cloud_layers[i];
+    }
+
+    inline float get_visibility() const { return effective_visibility; }
+    inline void set_visibility( float v ) {
+	effective_visibility = visibility = v;
+    }
 };
 
 

simgear/sky/sphere.cxx

@@ -5,23 +5,33 @@
 // Original gluSphere code is Copyright (C) 1999-2000  Brian Paul and
 // licensed under the GPL
 //
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License as
-// published by the Free Software Foundation; either version 2 of the
-// License, or (at your option) any later version.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
 //
-// This program is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-// General Public License for more details.
+// Library General Public License for more details.
 //
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA  02111-1307, USA.
 //
 // $Id$
 
 
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <simgear/compiler.h>
+
+#include STL_IOSTREAM
+
+#include <plib/sg.h>
 #include <plib/ssg.h>
 
 
@@ -39,26 +49,8 @@ ssgBranch *ssgMakeSphere( ssgSimpleState *state, ssgColourArray *cl,
     sgVec2 vec2;
     sgVec3 vec3;
 
-    // handle cl whether it is preinitialized or not
-    if ( cl == NULL ) {
-	// create a new array if needed
-	cl = new ssgColourArray( 1 );
-    }
-
-    sgVec4 color;
-    sgSetVec4( color, 1.0, 1.0, 1.0, 1.0 );
-
-    if ( cl->getNum() > 1 ) {
-	cl->removeAll();
-	cl->add( color );
-    } else if ( cl->getNum() == 0 ) {
-	cl->add( color );
-    } else {
-	// accept value as given to us in
-    }
-
-    drho = M_PI / (float) stacks;
-    dtheta = 2.0 * M_PI / (float) slices;
+    drho = SG_PI / (float) stacks;
+    dtheta = 2.0 * SG_PI / (float) slices;
 
     /* texturing: s goes from 0.0/0.25/0.5/0.75/1.0 at +y/+x/-y/-x/+y
        axis t goes from -1.0/+1.0 at z = -radius/+radius (linear along
@@ -119,6 +111,15 @@ ssgBranch *ssgMakeSphere( ssgSimpleState *state, ssgColourArray *cl,
 
 	ssgLeaf *slice = 
 	    new ssgVtxTable ( GL_TRIANGLE_STRIP, vl, nl, tl, cl );
+
+	if ( vl->getNum() != nl->getNum() ) {
+	    cout << "bad sphere1\n";
+	    exit(-1);
+	}
+	if ( vl->getNum() != tl->getNum() ) {
+	    cout << "bad sphere2\n";
+	    exit(-1);
+	}
 	slice->setState( state );
 	slice->setCallback( SSG_CALLBACK_PREDRAW, predraw );
 	slice->setCallback( SSG_CALLBACK_POSTDRAW, postdraw );