Camera position

The sweep in Figure 170 is viewed with the camera moved up 500 world-coordinate units in the y direction. Here is the code to move the camera. Note that the sweep must be drawn into port for the new camera position to take effect.

              TPerspectiveCamera* camera = new TPerspectiveCamera();
          camera->SetPosition( TGPoint3D( 1440, 500, 1440 ) );
  
          TSceneBundle sceneBundle;
          sceneBundle.AdoptCamera( camera );
  
          sceneBundle.SetAmbientLight( TRGBColor( 1, 1, 1 ) );
          TParallelLight* light = new TParallelLight( TGPoint3D( -1,-1,-1 ), 
                                                      TRGBColor( 1,1,1 ) );
          sceneBundle.AdoptLight( light );
  
          TLinkedScenePort port( &thePort, &sceneBundle );
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