FGFS-4.1/OpenSceneGraph
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Ported osgcallback to osgViewer

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This commit is contained in:
Robert Osfield
2007-01-05 16:19:25 +00:00
parent 3d0b511a00
commit f99be366f6
5 changed files with 15 additions and 77 deletions
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74
examples/osgcallback/osgcallback.cpp
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@@ -1,4 +1,4 @@
#include <osgProducer/Viewer>
#include <osgViewer/Viewer>
#include <osg/Transform>
#include <osg/Billboard>
@@ -15,6 +15,7 @@
#include <osgUtil/Optimizer>
#include <iostream>
class UpdateCallback : public osg::NodeCallback
{
@@ -122,52 +123,19 @@ 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()->setDescription(arguments.getApplicationName()+" is the example which demonstrates use of the range of different types of callbacks supported in the OpenSceneGraph.");
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
// set the osgDB::Registy the read file callback to catch all requests for reading files.
osgDB::Registry::instance()->setReadFileCallback(new MyReadFileCallback());
// set the osgDB::Registy the read file callback to catch all requests for reading files.
osgDB::Registry::instance()->setReadFileCallback(new MyReadFileCallback());
// initialize 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.
if (arguments.read("-h") || arguments.read("--help"))
{
arguments.getApplicationUsage()->write(std::cout);
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);
return 1;
}
if (arguments.argc()<=1)
{
arguments.getApplicationUsage()->write(std::cout,osg::ApplicationUsage::COMMAND_LINE_OPTION);
return 1;
}
osgViewer::Viewer viewer;
// load the nodes from the commandline arguments.
osg::Node* rootnode = osgDB::readNodeFiles(arguments);
if (!rootnode)
{
// write_usage(osg::notify(osg::NOTICE),argv[0]);
osg::notify(osg::NOTICE)<<"Please specify a file on the command line"<<std::endl;
return 1;
}
@@ -182,31 +150,5 @@ int main( int argc, char **argv )
// set the scene to render
viewer.setSceneData(rootnode);
// 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();
}