FGFS-4.1/OpenSceneGraph
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Ported osgcopy, osgcubemap, osgdelaunay, osgdepthpartion, osgdistortion, osgfadetext, osgforest and osgfxbrowser to osgViewer

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This commit is contained in:
Robert Osfield
2007-01-06 21:35:57 +00:00
parent 0cd64c8c4f
commit 19a7ec0f6b
33 changed files with 160 additions and 607 deletions
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2
examples/osgdelaunay/GNUmakefile
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@@ -4,7 +4,7 @@ include $(TOPDIR)/Make/makedefs
CXXFILES =\
osgdelaunay.cpp\
LIBS += -losgProducer -lProducer -losgText -losgGA -losgDB -losgUtil -losg $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
LIBS += -losgViewer -losgText -losgGA -losgDB -losgUtil -losg $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
INSTFILES = \
$(CXXFILES)\

2
examples/osgdelaunay/GNUmakefile.inst
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@@ -4,7 +4,7 @@ include $(TOPDIR)/Make/makedefs
CXXFILES =\
osgdelaunay.cpp\
LIBS += -losgProducer -lProducer -losgDB -losgText -losgUtil -losg $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
LIBS += -losgViewer -losgDB -losgText -losgUtil -losg $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
EXEC = osgdelaunay

118
examples/osgdelaunay/osgdelaunay.cpp
View File

@@ -16,7 +16,7 @@
#include <osgDB/ReadFile>
#include <osgUtil/Optimizer>
#include <osgProducer/Viewer>
#include <osgViewer/Viewer>
#include <osg/CoordinateSystemNode>
#include <osgUtil/DelaunayTriangulator>
#include <osg/Material>
@@ -26,8 +26,9 @@
#include <osgUtil/Tesselator> // tesselator triangulates the constrained triangles
#include <osgText/Text>
#include <sstream>
#include <sstream>
#include <iostream>
/** here are 2 common types of constraint
* Area - forces an area to be filled; replacement geometry is a canopy and optional wall
@@ -300,7 +301,8 @@ osg::Node* createHUD(const int ndcs,std::string what)
text->setText(cue.str());
text->setColor(osg::Vec4(1.0,1.0,0.8,1.0));
position += delta*(ndcs+2);
#if 0
text = new osgText::Text;
geode->addDrawable( text );
@@ -309,7 +311,7 @@ osg::Node* createHUD(const int ndcs,std::string what)
text->setText("(use 'W' wireframe & 'T' texture to visualise mesh)");
text->setColor(osg::Vec4(1.0,1.0,0.8,1.0));
position += delta;
#endif
}
{
osgText::Text* text = new osgText::Text;
@@ -704,8 +706,8 @@ class KeyboardEventHandler : public osgGA::GUIEventHandler
{ // extra event handler traps 'n' key to re-triangulate the basic terrain.
public:
KeyboardEventHandler(osg::Node *nd,osgProducer::Viewer &vr):
_scene(nd), viewer(vr), iview(0) {}
KeyboardEventHandler(osgViewer::Viewer &vr):
viewer(vr), iview(0) {}
virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&)
{
@@ -713,13 +715,8 @@ public:
{
case(osgGA::GUIEventAdapter::KEYDOWN):
{
if (_scene && ea.getKey()=='n')
if (ea.getKey()=='n')
{
// re-tesselate the scene graph.
// the same contours are re-tesselated using a new method. Old contours
// & tesselation type are held internally in the derived Geode class tesselateDemoGeometry.
// cxTesselateVisitor tsv;
// _scene->accept(tsv);
iview++;
if (iview>10) iview=0;
osg::ref_ptr<osg::Node> loadedModel = makedelaunay(iview);
@@ -734,8 +731,7 @@ public:
return false;
}
osg::Node *_scene;
osgProducer::Viewer &viewer;
osgViewer::Viewer &viewer;
int iview;
};
@@ -1269,54 +1265,10 @@ int main( int argc, char **argv )
// use an ArgumentParser object to manage the program arguments.
osg::ArgumentParser arguments(&argc,argv);
// set up the usage document, in case we need to print out how to use this program.
arguments.getApplicationUsage()->setApplicationName(arguments.getApplicationName());
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" example interactive demonstrates constrained delaunay traingulation of point dataset.");
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
arguments.getApplicationUsage()->addCommandLineOption("--image <filename>","Load an image and render it on a quad");
arguments.getApplicationUsage()->addCommandLineOption("--dem <filename>","Load an image/DEM and render it on a HeightField");
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display command line parameters");
arguments.getApplicationUsage()->addCommandLineOption("--help-env","Display environment variables available");
arguments.getApplicationUsage()->addCommandLineOption("--help-keys","Display keyboard & mouse bindings available");
arguments.getApplicationUsage()->addCommandLineOption("--help-all","Display all command line, env vars and keyboard & mouse bindings");
// construct the viewer.
osgProducer::Viewer viewer(arguments);
// set up the value with sensible default event handlers.
viewer.setUpViewer(osgProducer::Viewer::STANDARD_SETTINGS);
// get details on keyboard and mouse bindings used by the viewer.
viewer.getUsage(*arguments.getApplicationUsage());
// if user request help write it out to cout.
bool helpAll = arguments.read("--help-all");
unsigned int helpType = ((helpAll || arguments.read("-h") || arguments.read("--help"))? osg::ApplicationUsage::COMMAND_LINE_OPTION : 0 ) |
((helpAll || arguments.read("--help-env"))? osg::ApplicationUsage::ENVIRONMENTAL_VARIABLE : 0 ) |
((helpAll || arguments.read("--help-keys"))? osg::ApplicationUsage::KEYBOARD_MOUSE_BINDING : 0 );
if (helpType)
{
arguments.getApplicationUsage()->write(std::cout, helpType);
return 1;
}
// report any errors if they have occured when parsing the program aguments.
if (arguments.errors())
{
arguments.writeErrorMessages(std::cout);
return 1;
}
if (arguments.argc()<1)
{
arguments.getApplicationUsage()->write(std::cout,osg::ApplicationUsage::COMMAND_LINE_OPTION);
return 1;
}
osg::Timer_t start_tick = osg::Timer::instance()->tick();
osgViewer::Viewer viewer;
// create the scene from internal specified terrain/constraints.
osg::ref_ptr<osg::Node> loadedModel = makedelaunay(0);
@@ -1327,20 +1279,6 @@ int main( int argc, char **argv )
return 1;
}
// any option left unread are converted into errors to write out later.
arguments.reportRemainingOptionsAsUnrecognized();
// report any errors if they have occured when parsing the program aguments.
if (arguments.errors())
{
arguments.writeErrorMessages(std::cout);
}
osg::Timer_t end_tick = osg::Timer::instance()->tick();
std::cout << "Time to load = "<<osg::Timer::instance()->delta_s(start_tick,end_tick)<<std::endl;
// optimize the scene graph, remove rendundent nodes and state etc.
osgUtil::Optimizer optimizer;
optimizer.optimize(loadedModel.get());
@@ -1350,33 +1288,7 @@ int main( int argc, char **argv )
// copied from osgtessealte.cpp
// add event handler for keyboard 'n' to retriangulate
viewer.getEventHandlerList().push_front(new KeyboardEventHandler(loadedModel.get(), viewer));
viewer.addEventHandler(new KeyboardEventHandler(viewer));
// create the windows and run the threads.
viewer.realize();
while( !viewer.done() )
{
// wait for all cull and draw threads to complete.
viewer.sync();
// update the scene by traversing it with the the update visitor which will
// call all node update callbacks and animations.
viewer.update();
// fire off the cull and draw traversals of the scene.
viewer.frame();
}
// wait for all cull and draw threads to complete.
viewer.sync();
// run a clean up frame to delete all OpenGL objects.
viewer.cleanup_frame();
// wait for all the clean up frame to complete.
viewer.sync();
return 0;
return viewer.run();
}