Hi Simon,
Simon Beisel wrote:
> Hello everybody, i am currently working on my masters thesis and have
> some problems calculating the right viewpoint on a volumemodel which
> is implemented in OpenSG.
>
> For my Calculations i need the viewpoint on the volume.
Can you define what that is? Is it the from point, the at point, or
(most likely) the point in the model that's in the middle of the screen
or under the mouse cursor?
> the from-point is only the viewpoint as long as the at-point and the
> up-vector stay unchanged. After rotating for example it is no longer
> correct.
Rotating how? Using a Navigator?
> Is there a way to get directly the corresponding viewpoint or does it
> have to be computed manually? In the second case, how can I compute
> the viewpoint correct with the from, at and up values?
>
> I would really appreciate if someone could help me or even post a
> chunk of code which manages that problem.
Let's try the other way around: what do you want to do, what do you need
the viewpoint for? There might be an easy way to do what you want, if we
knew what you want. ;)
Dirk
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