Re: [Visualpython-users] vpython and ipython

[James M. <mu...@pi...>]

I haven't tried this, but people might want to look at this page.

http://code.enthought.com/projects/mayavi/docs/development/html/mayavi/auto/example_mlab_visual.html

The mlab package works with ipython, and this is an attempt to  
implement a Vpython-like api within it.

Again, I haven't tried it, so I can't offer any review of it.

-Jim

On Dec 18, 2009, at 1:47 PM, Venkat Ramanan wrote:

> Hi all,
>
> First off, thanks for the great work.
>
> I've been dabbling with Python for a bit aiming to move away from
> Matlab. A few days ago, to do some NMR simulation, I started coding
> with vpython and the 3D-plots are incredible. Great experience for a
> newbie 3D programmer like me.
>
> Anyway, for developing python programs, I've found ipython very
> useful. The interactivity is just great and there are many more
> features. See here (http://ipython.scipy.org/)
>
> However, vpython and ipython don't interact very well.
>
> 1a. If we run the programs through ipython, when we close the vpython
> window it crashes the ipython as well. The prompt (terminal
> properties) is affected as well. Why?
>
> 1b. If we don't close the window we can run the program again in the
> ipython prompt. However it doesn't reuse the existing plot. It opens a
> new window and during a debugging session, a number of windows are
> opened. Is it possible to reuse the existing vpython window?
>
> 2. This is related to the vector() object used in vpython. Is it in
> anyway related to the numpy array() or matrix() object? I've been
> passing the pos/axis of arrows with numpy arrays and it seems to work.
> Is there a difference in using vector() as opposed to numpy.array?
>
> 3. Is there a matrix object similar to vector? I'm using the numpy
> array and matrix objects now to represent the rotation matrix.
>
> I'm using Ubuntu-9.10 64 bit, with the Boost fixes described
> previously in the list.
>
> Thanks,
> Venkat.
>
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