Re: [Matplotlib-users] pylab vs. embedding in wx

[Ryan K. <rya...@gm...>]

Thanks to Ken and John, I think I am off and running.  Nice work on
wxmpl Ken!  I think it fills a significant need.

The two attached files show a ridiculously simple example of what I am
planning to do.  It may be completely obvoius to others.  test_plot.py
is an example of a module that can be used from the command line with
pylab and IPython and it can also be imported into a WX app (as
demonstrated by wx_compatible.py).  So, I will edit my data processing
scripts to use this approach.

Thanks again,

Ryan

On 3/19/07, Ryan Krauss <rya...@gm...> wrote:
> Sorry, I just googled wxmpl and found your page and am now downloading
> it.  I may have a more intelligent question momentarily.  You may
> ignore that part of my response.
>
> Ryan
>
> On 3/19/07, Ryan Krauss <rya...@gm...> wrote:
> > Thanks for your thoughts Ken.  Sorry, I assumed a bit on the context
> > of my comments.  I have some data processing utility scripts and I
> > want to now use with a WX application.  The problem is that the
> > utility modules were written without any thought of this future use in
> > mind and in all of them I have something like
> >
> > from pylab import figure, cla, clf, plot, semiliogx, show, ...
> >
> > at the top.  This makes them completely incompatible with embedding in
> > a WX application.  So, I need to re-write them and I want to know how
> > to do that best.  John had some suggestions and I had some new
> > questions as I tried to act on his thoughts.  So, the actual plotting
> > functions don't have to be re-useable in both contexts, but it would
> > be nice.
> >
> > I can't actually run your code because I don't have the wxmpl.py
> > module.  Looking at it, it looks like a really nice set of functions
> > that work cleanly with embedding in a backend.  How could I call one
> > of the functions from the command line?  Could I do something like:
> > import plotting, pylab
> > myfig = pylab.figure()
> > plotting.plot_simple(myfig)
> >
> > and would I need any additional commands to actually show the figure?
> >
> > Let me know if that makes sense and please send me the wxmpl.py file
> > or let me know where I can get it.
> >
> > Thanks again,
> >
> > Ryan
> >
> > On 3/19/07, Ken McIvor <mc...@ii...> wrote:
> > > Ryan,
> > >
> > > In my (limited) experience, it's dicey to mix pylab's plotting
> > > functionality and the OO API.  I guess I'm a little unclear exactly
> > > what your use case is for this.  It sounds like you're goal is to
> > > create a library of functions that operate on Figure instances,
> > > perhaps so you can use them both interactively and as part of a
> > > wxPython application.
> > >
> > > If that's the case, I'd recommend you try using pylab's gcf() and draw
> > > () to acquire and redraw the current Figure instance from within
> > > IPython.  You can also save the return value of pylab's figure(),
> > > which returns a Figure that's already been attached to the
> > > appropriate renderer.  This way you can use the OO API for plotting
> > > without having to futz with the drawing machinery directly.
> > >
> > > This script might give you some ideas about how to structure your
> > > code.  It contains several of the MPL examples re-coded as functions
> > > that accept a Figure instance and use the OO API for plotting.
> > >
> > >         http://svn.csrri.iit.edu/mr-software/wxmpl/trunk/demos/plotting.py
> > >
> > > Ken
> > >
> >
>