OpenSceneGraph/examples/osgkdtree/osgkdtree.cpp
2008-07-12 11:19:25 +00:00

71 lines
2.2 KiB
C++

/* 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 <osgDB/ReadFile>
#include <osg/ArgumentParser>
#include <osg/ApplicationUsage>
#include <osg/Timer>
#include <osg/CoordinateSystemNode>
#include <osg/Notify>
#include <osg/io_utils>
#include <osg/Geometry>
#include <osg/TriangleIndexFunctor>
#include <osgUtil/IntersectionVisitor>
#include <osgUtil/LineSegmentIntersector>
#include <osgUtil/UpdateVisitor>
#include <osgSim/LineOfSight>
#include <osgSim/HeightAboveTerrain>
#include <osgSim/ElevationSlice>
#include <osgViewer/Viewer>
#include <osg/KdTree>
#include <iostream>
int main(int argc, char **argv)
{
// use an ArgumentParser object to manage the program arguments.
osg::ArgumentParser arguments(&argc,argv);
int maxNumLevels = 16;
int targetNumIndicesPerLeaf = 16;
while (arguments.read("--max", maxNumLevels)) {}
while (arguments.read("--leaf", targetNumIndicesPerLeaf)) {}
osgDB::Registry::instance()->setBuildKdTreesHint(osgDB::ReaderWriter::Options::BUILD_KDTREES);
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;
}
osgViewer::Viewer viewer;
viewer.setSceneData(scene.get());
return viewer.run();
}