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Added new osg::ApplicationUsage and osg::ArgumentParser to help streamline

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application/example developement.
This commit is contained in:
Robert Osfield
2003-02-18 16:36:42 +00:00
parent 6184ecba3f
commit c10d5f2d6f
22 changed files with 1008 additions and 84 deletions
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2
src/Demos/osgproducer/Makefile
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@@ -1,4 +1,4 @@
TOPDIR = ../../..
TOPDIR = ../../../
include $(TOPDIR)/Make/makedefs
CXXFILES =\

124
src/Demos/osgproducer/osgproducer_viewer.cpp
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@@ -2,6 +2,10 @@
//Distributed under the terms of the GNU LIBRARY GENERAL PUBLIC LICENSE (LGPL)
//as published by the Free Software Foundation.
#include <osg/ArgumentParser>
#include <osg/ApplicationUsage>
#include <osgUtil/Optimizer>
#include <osgDB/ReadFile>
@@ -15,83 +19,85 @@
int main( int argc, char **argv )
{
// create the commandline args.
// 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.
osg::ApplicationUsage::instance()->setCommandLineUsage(arguments.getProgramName()+" [options] filename ...");
osg::ApplicationUsage::instance()->addCommandLineOption("-h or --help","Display this information");
osg::ApplicationUsage::instance()->addCommandLineOption("-p <filename>","Specify camera path file to animate the camera through the loaded scene");
// construct the viewer.
osgProducer::Viewer viewer(arguments);
// set up the value with sensible default event handlers.
viewer.setUpViewer();
// if a pathfile has been specified on command line use it to animate the camera via an AnimationPathManipulator.
std::string pathfile;
std::string configfile;
std::vector<std::string> commandLine;
for(int i=1;i<argc;++i) {
if( std::string(argv[i]) == "-p" ) {
if( (i+1) >= argc ) {
std::cout << "path argument required for -p option."<<std::endl;
return 1;
}
else
pathfile = std::string(argv[++i]);
}
else
if( std::string(argv[i]) == "-c" ) {
if( (i+1) >= argc ) {
std::cout << "path argument required for -c option."<<std::endl;
return 1;
}
else
configfile = std::string(argv[++i]);
}
else
commandLine.push_back(argv[i]);
}
osg::DisplaySettings::instance()->readCommandLine(commandLine);
osgDB::readCommandLine(commandLine);
osgProducer::Viewer* viewer = 0;
if (!configfile.empty()) viewer = new osgProducer::Viewer(configfile);
else viewer = new osgProducer::Viewer;
// configure the plugin registry from the commandline arguments, and
// eat any parameters that have been matched.
osgDB::readCommandLine(commandLine);
// read the scene.
osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFiles(commandLine);
if (!loadedModel) return 1;
// optimize it, remove rendundent nodes and state etc.
osgUtil::Optimizer optimizer;
optimizer.optimize(loadedModel.get());
// set up the value with sensible defaults.
viewer->setUpViewer();
if( !pathfile.empty() ) {
while (arguments.read("-p",pathfile))
{
osg::ref_ptr<osgGA::AnimationPathManipulator> apm = new osgGA::AnimationPathManipulator(pathfile);
if( apm.valid() && apm->valid() )
{
unsigned int num = viewer->addCameraManipulator(apm.get());
viewer->selectCameraManipulator(num);
unsigned int num = viewer.addCameraManipulator(apm.get());
viewer.selectCameraManipulator(num);
}
}
// if user request help pritn it out to cout.
if (arguments.read("-h") || arguments.read("--help"))
{
osg::ApplicationUsage::instance()->write(cout);
return 1;
}
// read the scene from the list of file specified commandline args.
osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFiles(arguments);
// any option left unread a 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(cout);
return 1;
}
// if no model has been successfully loaded report failure.
if (!loadedModel)
{
std::cout << arguments.getProgramName() <<": No input files" << std::endl;
return 1;
}
// optimize the scene graph, remove rendundent nodes and state etc.
osgUtil::Optimizer optimizer;
optimizer.optimize(loadedModel.get());
// set the scene to render
viewer->setSceneData(loadedModel.get());
viewer.setSceneData(loadedModel.get());
// create the windows and run the threads.
viewer->realize(Producer::CameraGroup::ThreadPerCamera);
viewer.realize(Producer::CameraGroup::ThreadPerCamera);
while( !viewer->done() )
while( !viewer.done() )
{
// wait for all cull and draw threads to complete.
viewer->sync();
viewer.sync();
// update the scene by traversing it with the the update visitor which will
// call all node update callbacks and animations.
viewer->update();
viewer.update();
// fire off the cull and draw traversals of the scene.
viewer->frame();
viewer.frame();
}
return 0;