I have a view which uses a parallel projection looking into a J3D world. The
view can either be oriented to be a left, top, or front view into the world.
I want to allow the user to zoom the view in and out - essentially allowing
them to see more or less of the world - without changing the actual size of
the Canvas3D used by the view.
I've tried translating the view platform towards/away from the centre of the
scene but this has no affect on the amount of the scene which can be seen -
as you'd expect using a parallel projection (I think). I've also
experimented with adjusting the view's screen scale using the
setScreenScale(double scale) method. Although this does zoom in and out in a
sense, it isn't exactly what I'm looking for.
I've achieved the effect I am looking for in the perspective view by
adjusting the view platform's distance away from the centre of the scene.
Any ideas of how to reproduce this effect in a view with a parallel
projection would be much appreciated.
Cheers
Andy
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