Re: [Visualpython-users] camera zoom (position change?) problem

[Bruce S. <Bru...@nc...>]

It may not be quite what you want, but note that in the contributed 
programs section of vpython.org the program movecamera.py may be related 
to your questions.

Also, you might consider taking over the mouse yourself, if you have 
special needs. Turn off userzoom and userspin and display the scene as 
you wish, based on whatever mouse interactions you wish. The example 
program stonehenge.py that comes with VPython is of this kind.

Bruce Sherwood

nom de guerre wrote:

> hi.
>
> i have the folowing problem: i would like to move the camera in the 
> same z distance from my object. so what i would like to do is to 
> update the z coord of camera. the display.mouse.camera is ro and You 
> suggest to modify the: forward, up, center, range. so the problem 
> comes. when i zoom with middle mouse button none of these params 
> change! so i do not know what actual 'zoom' makes. i checked for docs, 
> usergroup but still i have no idea how to solve the problem. any 
> suggestions?
>
> this question can be more general -- the z axis may be identified by 
> forward..
>
> thanks in advance.
>
> bests,
> szymon stoma.
>
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