218 lines
7.1 KiB
C++
218 lines
7.1 KiB
C++
#include <osg/Group>
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#include <osg/Geode>
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#include <osg/ShapeDrawable>
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#include <osg/Texture2D>
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#include <osg/PositionAttitudeTransform>
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#include <osg/MatrixTransform>
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#include <osg/CoordinateSystemNode>
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#include <osg/ClusterCullingCallback>
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#include <osg/ArgumentParser>
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#include <osgDB/FileUtils>
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#include <osgDB/ReadFile>
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#include <osgText/FadeText>
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#include <osgViewer/Viewer>
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#include <osgViewer/StatsHandler>
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#include <osgGA/TrackballManipulator>
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#include <osgGA/FlightManipulator>
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#include <osgGA/DriveManipulator>
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#include <osgGA/KeySwitchMatrixManipulator>
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#include <osgGA/StateSetManipulator>
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#include <osgGA/AnimationPathManipulator>
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#include <osgGA/TerrainManipulator>
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#include <osgTerrain/TerrainNode>
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#include <osgTerrain/GeometryTechnique>
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#include <osgTerrain/Layer>
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#include <iostream>
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int main(int argc, char** argv)
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{
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osg::ArgumentParser arguments(&argc, argv);
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// construct the viewer.
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osgViewer::Viewer viewer;
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// set up the camera manipulators.
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{
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osg::ref_ptr<osgGA::KeySwitchMatrixManipulator> keyswitchManipulator = new osgGA::KeySwitchMatrixManipulator;
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keyswitchManipulator->addMatrixManipulator( '1', "Trackball", new osgGA::TrackballManipulator() );
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keyswitchManipulator->addMatrixManipulator( '2', "Flight", new osgGA::FlightManipulator() );
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keyswitchManipulator->addMatrixManipulator( '3', "Drive", new osgGA::DriveManipulator() );
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keyswitchManipulator->addMatrixManipulator( '4', "Terrain", new osgGA::TerrainManipulator() );
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std::string pathfile;
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char keyForAnimationPath = '5';
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while (arguments.read("-p",pathfile))
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{
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osgGA::AnimationPathManipulator* apm = new osgGA::AnimationPathManipulator(pathfile);
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if (apm || !apm->valid())
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{
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unsigned int num = keyswitchManipulator->getNumMatrixManipulators();
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keyswitchManipulator->addMatrixManipulator( keyForAnimationPath, "Path", apm );
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keyswitchManipulator->selectMatrixManipulator(num);
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++keyForAnimationPath;
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}
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}
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viewer.setCameraManipulator( keyswitchManipulator.get() );
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}
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// add the state manipulator
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viewer.addEventHandler( new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()) );
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// add the stats handler
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viewer.addEventHandler(new osgViewer::StatsHandler);
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double x = 0.0;
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double y = 0.0;
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double w = 1.0;
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double h = 1.0;
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osg::ref_ptr<osgTerrain::TerrainNode> terrain = new osgTerrain::TerrainNode;
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osg::ref_ptr<osgTerrain::Locator> locator = new osgTerrain::EllipsoidLocator(-osg::PI, -osg::PI*0.5, 2.0*osg::PI, osg::PI, 0.0);
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unsigned int layerNum = 0;
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bool readParameter = false;
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float minValue, maxValue;
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int pos = 1;
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while(pos<arguments.argc())
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{
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readParameter = false;
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std::string filename;
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if (arguments.read(pos, "--layer",layerNum))
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{
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osg::notify(osg::NOTICE)<<"Set layer number to "<<layerNum<<std::endl;
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readParameter = true;
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}
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else if (arguments.read(pos, "-e",x,y,w,h))
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{
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// define the extents.
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locator = new osgTerrain::EllipsoidLocator(x,y,w,h,0);
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readParameter = true;
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}
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else if (arguments.read(pos, "--hf",filename))
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{
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readParameter = true;
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osg::notify(osg::NOTICE)<<"--hf "<<filename<<std::endl;
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osg::ref_ptr<osg::HeightField> hf = osgDB::readHeightFieldFile(filename);
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if (hf.valid())
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{
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osg::ref_ptr<osgTerrain::HeightFieldLayer> hfl = new osgTerrain::HeightFieldLayer;
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hfl->setHeightField(hf.get());
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hfl->setLocator(locator.get());
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terrain->setElevationLayer(hfl.get());
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osg::notify(osg::NOTICE)<<"created osgTerrain::HeightFieldLayer"<<std::endl;
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}
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else
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{
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osg::notify(osg::NOTICE)<<"failed to create osgTerrain::HeightFieldLayer"<<std::endl;
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}
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}
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else if (arguments.read(pos, "-d",filename) || arguments.read(pos, "--elevation-image",filename))
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{
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readParameter = true;
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osg::notify(osg::NOTICE)<<"--elevation-image "<<filename<<std::endl;
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osg::ref_ptr<osg::Image> image = osgDB::readImageFile(filename);
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if (image.valid())
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{
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osg::ref_ptr<osgTerrain::ImageLayer> imageLayer = new osgTerrain::ImageLayer;
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imageLayer->setImage(image.get());
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imageLayer->setLocator(locator.get());
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terrain->setElevationLayer(imageLayer.get());
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osg::notify(osg::NOTICE)<<"created Elevation osgTerrain::ImageLayer"<<std::endl;
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}
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else
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{
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osg::notify(osg::NOTICE)<<"failed to create osgTerrain::ImageLayer"<<std::endl;
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}
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}
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else if (arguments.read(pos, "-c",filename) || arguments.read(pos, "--image",filename))
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{
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readParameter = true;
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osg::notify(osg::NOTICE)<<"--image "<<filename<<" x="<<x<<" y="<<y<<" w="<<w<<" h="<<h<<std::endl;
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osg::ref_ptr<osg::Image> image = osgDB::readImageFile(filename);
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if (image.valid())
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{
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osg::ref_ptr<osgTerrain::ImageLayer> imageLayer = new osgTerrain::ImageLayer;
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imageLayer->setImage(image.get());
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imageLayer->setLocator(locator.get());
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terrain->setColorLayer(layerNum, imageLayer.get());
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osg::notify(osg::NOTICE)<<"created Color osgTerrain::ImageLayer"<<std::endl;
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}
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else
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{
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osg::notify(osg::NOTICE)<<"failed to create osgTerrain::ImageLayer"<<std::endl;
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}
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}
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else if (arguments.read(pos, "--tf",minValue, maxValue))
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{
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readParameter = true;
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osg::ref_ptr<osg::TransferFunction1D> tf = new osg::TransferFunction1D;
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tf->setInputRange(minValue, maxValue);
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tf->allocate(6);
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tf->setValue(0, osg::Vec4(1.0,1.0,1.0,1.0));
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tf->setValue(1, osg::Vec4(1.0,0.0,1.0,1.0));
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tf->setValue(2, osg::Vec4(1.0,0.0,0.0,1.0));
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tf->setValue(3, osg::Vec4(1.0,1.0,0.0,1.0));
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tf->setValue(4, osg::Vec4(0.0,1.0,1.0,1.0));
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tf->setValue(5, osg::Vec4(0.0,1.0,0.0,1.0));
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osg::notify(osg::NOTICE)<<"--tf "<<minValue<<" "<<maxValue<<std::endl;
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terrain->setColorTransferFunction(layerNum, tf.get());
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}
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else
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{
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++pos;
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}
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}
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osg::ref_ptr<osgTerrain::GeometryTechnique> geometryTechnique = new osgTerrain::GeometryTechnique;
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terrain->setTerrainTechnique(geometryTechnique.get());
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if (!terrain) return 0;
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// return 0;
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// add a viewport to the viewer and attach the scene graph.
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viewer.setSceneData(terrain.get());
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return viewer.run();
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}
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