"kani A." wrote:
>
> Dear friends
>
> Iam a beginner in learning java3D, I have a doubt about the rotation please help
>to understand it. Actually I rotate a object around yAxis , I want to tilt the axis
>of rotation to certain degree. I don't have idea . please anybody help me.
Rotations in Java3D are (usually) expressed as Quaternions. Basically
that means to define an axis and then the amount of rotation around that
axis. So, say you want to define the rotation axis for a box to be
between the two corners:
+Y
^
|
+-> +X
/
+------+
| /|
| / |
| / |
| / |
| / |
|/ |
+------+
/
You need to define an axis as (1 1 0). Remember that this axis is a
vector too.
More information on quaternions can be found in the Java3D FAQ we keep
at
http://www.j3d.org/faq/manipulating.html#quaternions
--
Justin Couch http://www.vlc.com.au/~justin/
Freelance Java Consultant http://www.yumetech.com/
Author, Java 3D FAQ Maintainer http://www.j3d.org/
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