Changeset 4494 for OpenSceneGraph/trunk/examples/osgcamera/osgcamera.cpp

Timestamp:

09/02/05 22:06:11 (8 years ago)

Author:

robert

Message:

Added commandline arguments for controlling number of cameras through to the windowing library to use.

Files:

• OpenSceneGraph/trunk/examples/osgcamera/osgcamera.cpp (modified) (3 diffs)

OpenSceneGraph/trunk/examples/osgcamera/osgcamera.cpp

@@ -121 +121 @@
 int main( int argc, char **argv )
 {
-
-    if (argc<2) 
-    {
-        std::cout << argv[0] <<": requires filename argument." << std::endl;
-        return 1;
-    }
+    // use an ArgumentParser object to manage the program arguments.
+    osg::ArgumentParser arguments(&argc,argv);
+
+    std::string windowingLibrary("osgProducer");
+    while (arguments.read("--windowing",windowingLibrary)) {}
 
     // load the osgProducer library manually.
-    osg::ref_ptr<osgDB::DynamicLibrary> osgProducerLib =
-            osgDB::DynamicLibrary::loadLibrary(osgDB::Registry::instance()->createLibraryNameForNodeKit("osgProducer"));
-
-
-    // load the scene.
-    osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFile(argv[1]);
-    if (!loadedModel) 
-    {
-        std::cout << argv[0] <<": No data loaded." << std::endl;
-        return 1;
-    }
-
-    
-    // set up the frame stamp for current frame to record the current time and frame number so that animtion code can advance correctly
-    osg::ref_ptr<osg::FrameStamp> frameStamp = new osg::FrameStamp;
-
-    unsigned int frameNum = 0;
-
-    osgUtil::UpdateVisitor updateVisitor;
-    updateVisitor.setFrameStamp(frameStamp.get());
-
+    osg::ref_ptr<osgDB::DynamicLibrary> windowingLib =
+            osgDB::DynamicLibrary::loadLibrary(osgDB::Registry::instance()->createLibraryNameForNodeKit(windowingLibrary));
+
+
+    if (!windowingLib)
+    {
+        std::cout<<"Error: failed to loading windowing library: "<<windowingLibrary<<std::endl;
+    }
 
     unsigned int numberCameras = 3;
+    while (arguments.read("--cameras",numberCameras)) {}
+
     unsigned int xpos = 0;
     unsigned int ypos = 400;
     unsigned int width = 400;
     unsigned int height = 400;
+
+    while (arguments.read("--xpos",xpos)) {}
+    while (arguments.read("--ypos",ypos)) {}
+    while (arguments.read("--height",height)) {}
+    while (arguments.read("--width",width)) {}
+
+    unsigned int maxNumFrames = 1000;
+    while (arguments.read("--max-num-frames",maxNumFrames)) {}
+
+    // load the scene.
+    osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFiles(arguments);
+    if (!loadedModel) 
+    {
+        std::cout << argv[0] <<": No data loaded." << std::endl;
+        return 1;
+    }
+
+    
+    // set up the frame stamp for current frame to record the current time and frame number so that animtion code can advance correctly
+    osg::ref_ptr<osg::FrameStamp> frameStamp = new osg::FrameStamp;
+
+    unsigned int frameNum = 0;
+
+    osgUtil::UpdateVisitor updateVisitor;
+    updateVisitor.setFrameStamp(frameStamp.get());
     
     typedef std::list< osg::ref_ptr<osg::CameraNode> > CameraList;
@@ -310 +323 @@
     
     bool done = false;
-    unsigned int maxNumFrames = 50;
 
     // main loop -  update scene graph, dispatch frame, wait for frame done.
@@ -344 +356 @@
 
     }
-
-    // delete the cameras, associated contexts and threads.
-    cameraList.clear();
     
     std::cout<<"Exiting application"<<std::endl;