hi Peter,
you must perform the intepolator in the local coord system of the cube. see
changes below.
Gernot Veith
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Peter Schuller
<peter.schuller@INFI To: [EMAIL PROTECTED]
DYNE.COM> cc:
Sent by: Discussion Subject: [JAVA3D] Translating and
then rotating
list for Java 3D API
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15.07.00 17:17
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Java 3D API
Hello,
I am just getting started with Java3D, so I am just trying to do some
simple
things with the help of the utility classes (while reading Sun's tutorial),
but I quickly got stuck.
What I tried to do was to rotate two cubes, but I wanted to apply a simple
translation to one of them so that they wouldn't be in the exact same spot.
This translation works as long as I don't rotate the cube, but as soon as I
rotate it it seems to move back to it's original position (0,0,0).
The following code builds the scene graph. I'd appreciate any pointers as
to
what I am missing.
Thanks!
BranchGroup objRoot = new BranchGroup();
TransformGroup objSpin1 = new TransformGroup();
objSpin1.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
objRoot.addChild(objSpin1);
objSpin1.addChild(new ColorCube(0.1));
Transform3D translate2 = new Transform3D();
Vector3f vector2 = new Vector3f(0.0f, 0.5f, 0.0f);
translate2.setTranslation(vector2);//new: ---------------
TransformGroup translateTG = new TransformGroup();
translateTG.setTransform(translate2);
//-------------------
TransformGroup objSpin2 = new TransformGroup();
objSpin2.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);//new ------
translateTG.addChild(objSpin2);
objRoot.addChild(translateTG);
//objRoot.addChild(objSpin2);
objSpin2.addChild(new ColorCube(0.1));
Alpha rotationAlpha = new Alpha(-1, 4000);
RotationInterpolator rotator1 =
new RotationInterpolator(rotationAlpha, objSpin1);
RotationInterpolator rotator2 =
new RotationInterpolator(rotationAlpha, objSpin2);
BoundingSphere bounds = new BoundingSphere();
rotator1.setSchedulingBounds(bounds);
rotator2.setSchedulingBounds(bounds);
objSpin1.addChild(rotator1);
objSpin2.addChild(rotator2);
--
/ Peter Schuller, InfiDyne Technologies HB
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