Hello..
I guess my problem is the same. I am attaching the the MouseRotate Behavior on
the viewplatform. My object is at origin and ViewPlatform at (0,0,2.41). Now
when i try to rotate the object, the object goes out of scope. MY conclusion is
that the Viewplatform rotates around itself rather than the object( which is at
0,0,0).
I haven't yet tried the lookAt() method.. But the modified clases of the
mouseRotate will be most welcome... ERIC are u there?:)
Ashish
> Eric Reiss ([EMAIL PROTECTED]) [000923 02:54]:
> > I have tackled and conquered this problem however not with a camera's view
> > point but the viewers.
> >
> > I have extensively rewritten the mouse and picking behaviors to satisfy my
> > problems but you would only have to do the mouse.
> >
> > I had plan to post my behaviors on the web and I will try to do it this
> > weekend.
> >
> > The key for what I did was to pass a TransformGroup to the behaviors that
> > had the view platforms transform in it. In your case you would need to
> > pass in the camera's transform.
> >
> > I didn't use he LookAt method or Euler angles, it is all matrix math.
> >
> > You do have some of the algorithm right in that you need to do a translate,
> > a matrix multiplication and then the translate. I don't remember the
> > specifics.
> >
> > I can't do this at work now so I will get that stuff on the web this weekend.
> >
> > Nag me if I don't.
> >
> >
> >
> >
> >
> >
> > At 09:08 AM 09/22/2000 -0400, you wrote:
> > >In my project the user "orbits" around the object in the scene, always
> > >looking at the object.
> > >What doesn't work? I'm guessing that your object goes out of view. That's
> > >probably because you're only translating, not rotating to keep the z-axis
> > >pointing directly away from the object you want to see. To do that uses a
> > >little trig, or you can use the LookAt method.
> > >
> > >Daniel
> > >
> > >-----Original Message-----
> > >From: Hans RAKOTOMANGA [mailto:[EMAIL PROTECTED]]
> > >Sent: Friday, September 22, 2000 6:28 AM
> > >To: [EMAIL PROTECTED]
> > >Subject: [JAVA3D] View Rotation
> > >
> > >
> > >Hi all, i am trying to create a HomeWorld style visualization, ie : Rotation
> > >of the camera around selected objects controlled via the mouse.
> > >So i modified the mouse rotate behavior, attached it to the viewingplatform
> > >of a simpleUniverse.
> > >
> > >In the behavior, i set translation to Origin, then perform an Euler
> > >transform upon the viewingplatform's transform
> > >and then translate back.
> > >
> > >This doesnt work however and i would like some feedback. ( i hope it isn't a
> > >view_attach_policy or anything of the sort, otherwise i am
> > >gonna shoot myself)
> > >
> > >Thanks alot.
> > >
> > >Hans
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