[osg-users] problem in changing view from perspective to orthographic

[Nitin Rangari]

hi all,

        i am trying to change Projection matrix from perspective to
Orthographic
        i am not finding proper way to do that..........
        i am trying......

         void GraphicsScene::makeOrtho()
       {
        osg::BoundingSphere bs = mRootNode->getBound();
           double h= _gw->getTraits()->height;
          double w= _gw->getTraits()->width;
           double aspectratio=w/h;

          double width = bs.radius()* 1.2;
           double height = bs.radius()*1.2;
 i       f(width>height)
      {
          aspectratio=width/height;

 
getCamera()->setProjectionMatrixAsOrtho(-width*aspectratio,width,-height*aspectratio,height,1.0,10000.0);
       }
      else
     {
       aspectratio=height/width;

  
getCamera()->setProjectionMatrixAsOrtho(-width*aspectratio,width*aspectratio,-height,height,1.0,10000.0);
       }
 }
regards ,
Nitin

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