Re: [JAVA3D] Zooming

[Anand Pillai]

Hi ishwari,

I think you can do this in two ways.

     1. You can use PickZoom  behavior and attach it to your SceneGraph.
     2. You could use PickObject class to pick your object and create a
PickingCallback
          method which can zoom your transformgroup. Add the PickingCallback
method
          as the callback to your PickObject behavior.

Anand





ishwari <[EMAIL PROTECTED]> on 06/20/2001 08:15:02 AM

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To:   [EMAIL PROTECTED]
cc:    (bcc: Anand PILLAI/dassault-systemes)
Subject:  Re: [JAVA3D] Zooming



Hi,

Thanks for ur reply. But I don't want the mouse zoom feature. I wish to do zoom
window by selecting a portion of the scene graph and scaling them. Got any idea
on this?

Regards,
ishwari
  ----- Original Message -----
  From: Anand Pillai
  To: [EMAIL PROTECTED]
  Sent: Tuesday, June 19, 2001 9:23 PM
  Subject: Re: [JAVA3D] Zooming





  Hi,

  I think what you need is a MouseZoom object.
  Set the TransformGroup object as the argument
  to  the MouseZoom object.

  MouseZoom zoomObj = new MouseZoom();
  zoomObj.setTransformGroup(t3d);
  zoomObj.setSchedulingBounds(    new BoundingSphere());

   After this, adding your Shape3D objects to t3d should
  do the work.

  Regards,

  Anand





  ishwari <[EMAIL PROTECTED]> on 06/19/2001 04:43:42 PM

  Please respond to Discussion list for Java 3D API
<[EMAIL PROTECTED]>

  To:   [EMAIL PROTECTED]
  cc:    (bcc: Anand PILLAI/dassault-systemes)
  Subject:  [JAVA3D] Zooming



  Hi,

  I have a scenegraph object containing some lines, circles, arcs, texts etc. I
  wish to do some zooming and hence I did the follg to the scenegraph's
  transformgroup

      Transformgroup t3d;
    t3d.setTranslation(new Vector3d(0,0,0));
    t3d.setScale(scale);
    t3d.setTranslation(new Vector3d(test.x,test.y,test.z));//screen origin

    scenegraph.transformgroup.setTransform(t3d);


  With this I am able to zoom line and circle. But the arc, text etc are not
  zoomed but only translated.. Can anyone tell me whether what I did is correct
or
  not? If yes, why it is not zooming all the objects? Is my approach correct?

  Regards,
  ishwari

Hi,   Thanks for ur reply. But I don't want the mouse zoom feature. I wish to do zoom window by selecting a portion of the scene graph and scaling them. Got any idea on this?   Regards, ishwari ----- Original Message ----- From: Anand Pillai To: [EMAIL PROTECTED] Sent: Tuesday, June 19, 2001 9:23 PM Subject: Re: [JAVA3D] Zooming Hi, I think what you need is a MouseZoom object. Set the TransformGroup object as the argument to  the MouseZoom object. MouseZoom zoomObj = new MouseZoom(); zoomObj.setTransformGroup(t3d); zoomObj.setSchedulingBounds(    new BoundingSphere());  After this, adding your Shape3D objects to t3d should do the work. Regards, Anand ishwari <[EMAIL PROTECTED]> on 06/19/2001 04:43:42 PM Please respond to Discussion list for Java 3D API <[EMAIL PROTECTED]> To:   [EMAIL PROTECTED] cc:    (bcc: Anand PILLAI/dassault-systemes) Subject:  [JAVA3D] Zooming Hi, I have a scenegraph object containing some lines, circles, arcs, texts etc. I wish to do some zooming and hence I did the follg to the scenegraph's transformgroup     Transformgroup t3d;   t3d.setTranslation(new Vector3d(0,0,0));   t3d.setScale(scale);   t3d.setTranslation(new Vector3d(test.x,test.y,test.z));//screen origin   scenegraph.transformgroup.setTransform(t3d); With this I am able to zoom line and circle. But the arc, text etc are not zoomed but only translated.. Can anyone tell me whether what I did is correct or not? If yes, why it is not zooming all the objects? Is my approach correct? Regards, ishwari