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[Visualpython-users] VPython-basics: how move the centre-point of rotation to the centre of a cuboid (not (0, 0, 0)) ?
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From: Ottmar P. <Ott...@gm...> - 2013-02-15 16:02:29
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<font size="-1">Hello.<br>
<br>
I want to show 3D-geometric objects like wooden boards<br>
with drillings/holes inside and e.g. pockets milled inside and
found some infos<br>
about Python/VPython. Normally I am programming in C++ (Visual
Studio 2008 Windows)<br>
but I did not find a very simple free tool to generate a 3D-view
of such simple<br>
geometric figures which can easily be zoomed and rotated.<br>
<br>
Then I found VPython, made the installation and took a look at the
examples.<br>
This seemed to be quite simple.<br>
<br>
But off course I will need some help and therefore I looked for
further info<br>
and found this mailing list.<br>
I wonder why there is no forum for VPython users ?<br>
Now I try to get some answers to basic questions of a beginner.<br>
<br>
When I draw a cuboid / cube with details around it and have the
point (0,0,0)<br>
at one corner of the cuboid then I want to set the zero-point for
<br>
rotation and zooming somewhere in the centre of the cuboid and not
in (0,0,0).<br>
<br>
At the moment it seems to me that the centre-point for rotation
using the<br>
mouse is always (0,0,0). How can I move this point to the centre
of the whole<br>
geometry ? Or how can I reach the same result ?<br>
<br>
Can you send me some simple example for building such geometries
with a cuboid<br>
or links to sides with some examples ?<br>
<br>
That would be very nice.<br>
Thanks in advance<br>
Ottmar<br>
<br>
<br>
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