Re: [Matplotlib-users] matplotlib in interactive mode from a script

[Benjamin R. <ben...@ou...>]

On Thu, Jul 1, 2010 at 10:42 AM, ninjasmith <hen...@gm...>wrote:

>
>
>
> >
> > Hi,
> >
> > I think what you are after is the interactive mode of matplotlib. You can
> > turn
> > is on by "ion" and redraw the current figure using "draw". In ipythons
> > "pylab"
> > mode this is done implicit. I attached some example lines which guide you
> > to
> > the right direction. I'm not sure why I need two draws in my attached
> > script,
> > but at least it seems to do the job.
> > For more infos you may visit:
> >
> http://matplotlib.sourceforge.net/users/shell.html#controlling-interactive-
> > updating
> >
> > Kind regards,
> > Matthias
> >
> >
> > import numpy as np
> > import sys
> > import matplotlib.pylab as pyp
> >
> > a = np.array([0, 4, 5, 5, 3, 4, 5])
> > pyp.ion()
> > pyp.figure()
> > pyp.plot(a)
> > pyp.draw()
> > pyp.draw()
> >
> > input = sys.stdin.readline()
> > print "input 1 : %s " % (input)
> > pyp.xlabel('my xlabel %s' % input)
> > pyp.draw()
> > pyp.draw()
> >
> > input = sys.stdin.readline()
> > print "input 2 : %s " % (input)
> >
> > pyp.ioff()
> > pyp.show()
> >
> >
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>
> that almost fixes it.  I can now plot and re draw during the execution of
> my
> script.  However I cannot interact with the plots.  i.e. I can't zoom in on
> an area.  when the script gets to the point where pyp.show() is called then
> I'm able to do this.  I'm thinking there may be no way round this?
>
> or is there some way to run matplot lib plot in a different thread?
>
>
> ipython does this, I believe, when you call it with the -pylab option, but
I have never tried it with a script.

Ben Root