From 8d0c7890cede9cd350c714a3da20d76d25fcac5d Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Tue, 3 Jun 2008 16:13:49 +0000
Subject: [PATCH] First cut of osgkdtree example, this will be used as a base
 of the development of native kdtree support to help speed up intersection
 testing.

---
 examples/CMakeLists.txt           |  5 +--
 examples/osgkdtree/CMakeLists.txt |  5 +++
 examples/osgkdtree/osgkdtree.cpp  | 53 +++++++++++++++++++++++++++++++
 3 files changed, 61 insertions(+), 2 deletions(-)
 create mode 100644 examples/osgkdtree/CMakeLists.txt
 create mode 100644 examples/osgkdtree/osgkdtree.cpp

diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index 97dfa6d8a..bffbd96f3 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -42,6 +42,7 @@ IF(DYNAMIC_OPENSCENEGRAPH)
     ADD_SUBDIRECTORY(osghud)
     ADD_SUBDIRECTORY(osgimpostor)
     ADD_SUBDIRECTORY(osgintersection)
+    ADD_SUBDIRECTORY(osgkdtree)
     ADD_SUBDIRECTORY(osgkeyboard)
     ADD_SUBDIRECTORY(osgkeyboardmouse)
     ADD_SUBDIRECTORY(osglauncher)
@@ -71,6 +72,7 @@ IF(DYNAMIC_OPENSCENEGRAPH)
     ADD_SUBDIRECTORY(osgprerendercubemap)
     ADD_SUBDIRECTORY(osgreflect)
     ADD_SUBDIRECTORY(osgscalarbar)
+    ADD_SUBDIRECTORY(osgscreencapture)
     ADD_SUBDIRECTORY(osgscribe)
     ADD_SUBDIRECTORY(osgsequence)
     ADD_SUBDIRECTORY(osgshaders)
@@ -86,10 +88,9 @@ IF(DYNAMIC_OPENSCENEGRAPH)
     ADD_SUBDIRECTORY(osgspotlight)
     ADD_SUBDIRECTORY(osgstereoimage)
     ADD_SUBDIRECTORY(osgstereomatch)
-    ADD_SUBDIRECTORY(osgscreencapture)
     ADD_SUBDIRECTORY(osgteapot)
     ADD_SUBDIRECTORY(osgterrain)
-    ADD_SUBDIRECTORY(osgtessellate)#)
+    ADD_SUBDIRECTORY(osgtessellate)
     ADD_SUBDIRECTORY(osgtext)
     ADD_SUBDIRECTORY(osgtext3D)
     ADD_SUBDIRECTORY(osgtexture1D)
diff --git a/examples/osgkdtree/CMakeLists.txt b/examples/osgkdtree/CMakeLists.txt
new file mode 100644
index 000000000..00f88e1cd
--- /dev/null
+++ b/examples/osgkdtree/CMakeLists.txt
@@ -0,0 +1,5 @@
+SET(TARGET_SRC osgkdtree.cpp )
+SET(TARGET_ADDED_LIBRARIES osgSim )
+
+#### end var setup  ###
+SETUP_EXAMPLE(osgkdtree)
diff --git a/examples/osgkdtree/osgkdtree.cpp b/examples/osgkdtree/osgkdtree.cpp
new file mode 100644
index 000000000..9e08382d7
--- /dev/null
+++ b/examples/osgkdtree/osgkdtree.cpp
@@ -0,0 +1,53 @@
+/* OpenSceneGraph example, osgintersection.
+*
+*  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 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.
+*/
+
+#include <osg/ArgumentParser>
+#include <osg/ApplicationUsage>
+#include <osg/Timer>
+#include <osg/CoordinateSystemNode>
+#include <osg/Notify>
+#include <osg/io_utils>
+
+#include <osgDB/ReadFile>
+
+#include <osgUtil/IntersectionVisitor>
+#include <osgUtil/LineSegmentIntersector>
+
+#include <osgSim/LineOfSight>
+#include <osgSim/HeightAboveTerrain>
+#include <osgSim/ElevationSlice>
+
+#include <iostream>
+
+
+int main(int argc, char **argv)
+{
+    // use an ArgumentParser object to manage the program arguments.
+    osg::ArgumentParser arguments(&argc,argv);
+    
+    osg::ref_ptr<osg::Node> scene = osgDB::readNodeFiles(arguments);
+    
+    if (!scene) 
+    {
+        std::cout<<"No model loaded, please specify a valid model on the command line."<<std::endl;
+        return 0;
+    }
+    
+    
+    return 0;
+}