Re: [JAVA3D] Transformations

[Alessandro Borges]

The solution is very simple. See a sniplet cut from Test4DLoad demo: /* the root */ BranchGroup objRoot = new BranchGroup(); /*the scale TG*/ TransformGroup objScale = new TransformGroup(); Transform3D t3d = new Transform3D();   t3d.setScale(1.2/sl);         objScale.setTransform(t3d);         objRoot.addChild(objScale);    /* this is the TG where the scene will be in */  TransformGroup objTrans = new TransformGroup();  (...)  /* it is child of tgScale */  objScale.addChild(objTrans);   /* the scene  objects are put here */ objTrans.addChild( _mySceneShapes);     Alessandro ----- Original Message ----- From: ahmet balci To: [EMAIL PROTECTED] Sent: Friday, July 18, 2003 4:01 AM Subject: Re: [JAVA3D] Transformations  Do you mean ; transform.setScale( scalingFactor ) and worldTrans.setTransform(transform) and then transform.rotX(RotA); worldTrans.setTransform(transform) sceneRoot.addChild(worldTrans)?  If it is so, I think I have tried alternate ways of it. But you are right at I am losing the scaling. But couldn't manage to shrink the model to fit in the window while making transformations on it.                   Alessandro Borges <[EMAIL PROTECTED]> wrote: Maybe I am telling you a stupid thing, but I thing you are losing the scaling.   You have : Bg(root) -> TG (scale & Rotating) -> scene.   try Bg(root) -> TG(scale) - TG(rotate) -> scene   Alessandro ----- Original Message ----- From: ahmet balci To: [EMAIL PROTECTED] Sent: Thursday, July 17, 2003 11:21 AM Subject: [JAVA3D] Transformations  Hi,  I had been making transformations within a 3DS model.  I can display the model at the canter of the window easily.  But when I try to make transformation (rotation or translation)  model becomes very huge that I can only see a part of it at the window.  Here is the code I use; ////////////////////////////////////////////////////////////////////////////////////////////////////////////    Transform3D transform = new Transform3D();                  transform.setScale( scalingFactor );                  transform.setTranslation( new Vector3f( 0,0,1));                  TransformGroup worldTrans   = new TransformGroup(transform);                  worldTrans.setCapability(worldTrans.ALLOW_TRANSFORM_READ);                  worldTrans.setCapability(worldTrans.ALLOW_TRANSFORM_WRITE);                  worldTrans.setCapability(worldTrans.ENABLE_PICK_REPORTING);                  sceneRoot.addChild(worldTrans);                  Alpha rotA=new Alpha();                  RotationInterpolator rotator=new RotationInterpolator(rotA,worldTrans,transform,0,1);                  BoundingSphere b=new BoundingSphere();                  rotator.setSchedulingBounds(b); /* Same thing occurs when I use rotX() or rotY() instead of RotationInterpolator    I mean model becomes very huge */                  worldTrans.addChild(rotator); /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////  Could someone tell me why the sizes of the model that I defined changes  when I try to make transformations? Is there anything that I should do  to preserve to predefined size of the model while I make transformations?  Thanks for your help in advance............................ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo. Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo.