From Neil Salter, added osgSim::SphereSegment and osgSim::ScalarBar, and

osgspheresegment and osgscalarbar, and osgsimulation examples.
2003-09-01 09:36:03 +00:00
parent 5400f8293b
commit 144ac14b07
25 changed files with 3214 additions and 5 deletions
--- a/examples/osgspheresegment/osgspheresegment.cpp
+++ b/examples/osgspheresegment/osgspheresegment.cpp
@@ -0,0 +1,156 @@
+#include <osg/Geode>
+#include <osg/ShapeDrawable>
+#include <osg/Material>
+#include <osg/Texture2D>
+#include <osg/Geometry>
+#include <osg/MatrixTransform>
+#include <osg/PositionAttitudeTransform>
+#include <osg/BlendFunc>
+#include <osg/ClearNode>
+
+#include <osgUtil/Tesselator>
+#include <osgUtil/TransformCallback>
+#include <osgUtil/CullVisitor>
+
+#include <osgText/Text>
+
+#include <osgGA/TrackballManipulator>
+#include <osgProducer/Viewer>
+#include <osgDB/ReadFile>
+
+#include <osgSim/SphereSegment>
+
+using namespace osgSim;
+
+class MyNodeCallback: public osg::NodeCallback
+{
+    void operator()(osg::Node*,osg::NodeVisitor*);
+};
+
+// void MyNodeCallback::operator()(osg::Node* n,osg::NodeVisitor* nv)
+// {
+//     if(osgSim::SphereSegment* ss=dynamic_cast<osgSim::SphereSegment*>(n))
+// 	{
+// 		osg::Vec3 vec;
+// 	    float azRange, elevRange;
+// 	    ss->getArea(vec,azRange,elevRange);
+//
+// 		float azRangeDeg = osg::RadiansToDegrees(azRange);
+//
+// 		static bool azAscending = false;
+//
+//         if(azAscending){
+// 		    azRangeDeg += 1.0f;
+// 			if(azRangeDeg>89.0f) azAscending = false;
+// 		}else{
+// 		    azRangeDeg -= 1.0f;
+// 			if(azRangeDeg<2.0f) azAscending = true;
+// 		}
+//
+// 		ss->setArea(vec,osg::DegreesToRadians(azRangeDeg),elevRange);
+//
+// 	}
+//     traverse(n,nv);
+// }
+
+void MyNodeCallback::operator()(osg::Node* n,osg::NodeVisitor* nv)
+{
+    if(osgSim::SphereSegment* ss=dynamic_cast<osgSim::SphereSegment*>(n))
+	{
+		osg::Vec3 vec;
+	    float azRange, elevRange;
+	    ss->getArea(vec,azRange,elevRange);
+
+        static float angle = 0.0f;
+		if(++angle > 359.0f) angle = 0.0f;
+		vec.set(sin(osg::DegreesToRadians(angle)),cos(osg::DegreesToRadians(angle)),0.0f);
+
+        std::cout<<"angle "<<angle<<" degrees, vec is "<<vec
+		                <<", azRange is "<<osg::RadiansToDegrees(azRange)
+						<<", elevRange is "<<osg::RadiansToDegrees(elevRange)
+						<<std::endl;
+
+		ss->setArea(vec,azRange,elevRange);
+	}
+    traverse(n,nv);
+}
+
+osg::Node* createSphereSegment()
+{
+	SphereSegment* ss = new SphereSegment(osg::Vec3(0.0f,0.0f,0.0f), 1.0f,
+					osg::Vec3(0.0f,1.0f,0.0f),
+					osg::DegreesToRadians(90.0f),
+					osg::DegreesToRadians(45.0f),
+					60);
+	ss->setAllColors(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
+	ss->setPlaneColor(osg::Vec4(0.0f,0.0f,1.0f,0.1f));
+	//ss->setDrawMask(SphereSegment::DrawMask(SphereSegment::SPOKES | SphereSegment::EDGELINE));
+
+    //ss->setUpdateCallback(new MyNodeCallback);
+
+    return ss;
+}
+
+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 both text, animation and billboard via custom transform to create the OpenSceneGraph logo..");
+    arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
+    arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
+    arguments.getApplicationUsage()->addCommandLineOption("ps","Render the Professional Services logo");
+
+    // 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.
+    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;
+    }
+
+    osg::Node* node = createSphereSegment();
+
+    // add model to viewer.
+    viewer.setSceneData( node );
+
+    // 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 before exit.
+    viewer.sync();
+
+    return 0;
+}