Re: [Visualpython-users] slider

[Arnd B. <arn...@we...>]

Hi,

On Wed, 28 Jan 2004, Andrew Dougherty wrote:
> On Tue, 27 Jan 2004, P H Borcherds wrote:
[...]
> > I have increased the number of points displayed in the poincare section to
> > 400 (see attached jpeg: 40 points is not sufficient).
>
> That, of course, depends both on what you're trying to do and on the speed
> of your computer (and/or the patience of your users!).  In my case, the
> students were supposed to be exploring period-doubling, so 40 points was
> plenty.  Obviously for more interesting behavior, more would usually be
> better.

I am not sure if this is of any help, but we have
been using scipy.xplt for things like this.
An example is
http://www.comp-phys.tu-dresden.de/cp2003/uebung3/standardabbildung.py
where we use the standard map (think of this as the Poincare map
of something more complicated) - sorry the doc inside is
in German.
In this example the points are _not_ shown dynamically (i.e. not one after
another) but this can be achieved as well.
(Notice that, as with most of the newer plotting tools,
all the points are kept in memory, but our students had
no basic problems running this on their machines (both Linux/Windows)
at home).
Of course scipy (www.scipy.org) is a pretty big package,
but personally I think it is really worth installing ...

Arnd