This is a bug in Java 3D. Thanks for reporting it.
--
Kevin Rushforth
Java 3D Team
Sun Microsystems
[EMAIL PROTECTED]
>Date: Fri, 26 Nov 1999 14:19:36 +0100
>From: Marco Lohse <[EMAIL PROTECTED]>
>Subject: [JAVA3D] Bug in Transform3D ?
>To: [EMAIL PROTECTED]
>
>hi,
>Stefan K�hler found a strange behavior of the Transform3D.ortho(..)
>function. included is some code which shows our problem: a Transform3D set
>with the ortho(..) function is not affine, but after reset with (nearly) the
>same values with the set(..) function it seems to be okay.
>Is this a bug or something we got wrong? Thanks a lot, Marco.
>
>code:
> TransformGroup tg = new TransformGroup();
> Transform3D t3d = new Transform3D();
> float[] m = new float[16];
> t3d.ortho(0.0, 10.0, 0.0, 10.0, -1.0, 1.0);
> System.out.println(t3d.getBestType());
> System.out.println(t3d);
> try {
> tg.setTransform(t3d);
> }
> catch(Exception e) {
> System.out.println(e.getMessage()+"\n");
> }
> t3d.get(m);
> t3d.set(m);
> System.out.println(t3d.getBestType());
> System.out.println(t3d);
> try {
> tg.setTransform(t3d);
> }
> catch(Exception e) {
> System.out.println(e.getMessage()+"\n");
> }
>
>output:
>0
>0.2, 0.0, 0.0, -1.0
>0.0, 0.2, 0.0, -1.0
>0.0, 0.0, 1.0, 0.0
>0.0, 0.0, 0.0, 1.0
>TransformGroup: non-affine transform
>
>128
>0.20000000298023224, 0.0, 0.0, -1.0
>0.0, 0.20000000298023224, 0.0, -1.0
>0.0, 0.0, 1.0, 0.0
>0.0, 0.0, 0.0, 1.0
>
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