Hello,
I am trying to toggle between perspective and parallel view modes. In
parallel mode zoom doesn't work. I tried below code to mimic a zoom
effect

  public void setCanvasView(String view) {
       if(view=="Perspective")
           canvas3D.getView().setProjectionPolicy(View.PERSPECTIVE_PROJECTION);
       else {
           canvas3D.getView().setProjectionPolicy(View.PARALLEL_PROJECTION);
           canvas3D.getView().setScreenScalePolicy(View.SCALE_EXPLICIT);
           canvas3D.getView().setScreenScale(0.17);
           // TransformGroup to hold scale transform.
           // This doesn't work neither.
//            matrix.setScale(canvas3D.getView().getScreenScale());
//            tg.setTransform(matrix);            
       }
   }

When I zoom an object in parallel mode, nothing changed, but if I
toggle to perspective mode I can see the object is zoomed. When I back
to parallel mode again, the object scale is back to original. It seems
the scale doesn't update parallel mode only. How can I update parallel
view?
Thanks for your help.

Sungwoo