On Mon, 2 Jul 2001, Bob Dengle wrote:
> Back to the other original question, about only using one Shape3D instead of
> multiple ones each with a TransformGroup. If you wanted to, instead of
> making multiple Shape3D's with their own TransformGroups, you could make the
> entire group of points one PointArray. You can get and set individual points
> through GeometryArray.getCoordinate and GeometryArray.setCoordinate.
> However, if you did it this way you would need to write your own behavior to
> translate the point that was selected.
Hello
Thanks for the answer!
What you are describing is excactly what I tried to do at first, however I
never managed to get so far that I actually changed the coordinates in the
PointArray, because I didn't find out what point actually was selected.
The behavior wakes up on AWTEvents MOUSE_*, but I don't know how to find
the coordinate in the virtual world that the click corresponds to. I only
get the coordinate at the canvas (with (0,0) in the top left corner..). Do
I have to use getLocalToVWorld() or something to transform the coordinate?
I didn't quite understand how that method worked..
Any hints?
Hmm.. while thinking about this, it seems like a lot of work. And I
already got it to work fine with multiple Shape3D's. But thinking about
performance, is it a better idea to have only one Shape3D instead of
multiple ones? If it will make the performance better, I think I will try
to finish my own behaviorclass. My application isn't terribly fast the way
it is... What do you think?
-Marianne
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