On Mon, Jul 11, 2011 at 11:16 AM, Sebastian Berg <sebast...@sipsolutions.net
> wrote:
> Hi,
>
>
> On Mon, 2011-07-11 at 07:13 -0700, SiggiN wrote:
> > Hi all!
> >
> > following code shows the problem I have with placing a colorbar for
> several
> > subplots.
> >
> > #-----------------------------code------------
> > import matplotlib
> > import numpy as np
> > import matplotlib.cm as cm
> > import matplotlib.mlab as mlab
> > import matplotlib.pyplot as plt
> >
> > matplotlib.rcParams['xtick.direction'] = 'out'
> > matplotlib.rcParams['ytick.direction'] = 'out'
> >
> > delta = 0.025
> > x = np.arange(-3.0, 3.0, delta)
> > y = np.arange(-2.0, 2.0, delta)
> > X, Y = np.meshgrid(x, y)
> > Z1 = mlab.bivariate_normal(X, Y, 1.0, 1.0, 0.0, 0.0)
> > Z2 = mlab.bivariate_normal(X, Y, 1.5, 0.5, 1, 1)
> > # difference of Gaussians
> > Z = 10.0 * (Z2 - Z1)
> >
> > plt.figure()
> >
> > plt.subplot(211)
> > CS = plt.contourf(X, Y, Z)
> >
> >
> > plt.subplot(212)
> > CS = plt.contourf(X, Y, Z)
> >
> >
> > plt.colorbar(orientation='horizontal')
> > plt.show()
> >
> > #-------------end code--------------
> > result:
> > http://old.nabble.com/file/p32037832/inttest.png
> >
> > is ther a way to not let the colorbar cut space from the 2nd subplot. I
> > would like to have them both the same size.
> >
>
> the subplot command only takes from the last axes as default. What you
> need to do (I think and I always do it like this) Define 3 sets of axes
> by hand instead of subplot(211) you use plt.axes(...) to create them (I
> guess there may be a nicer method, not sure). Then you can pass which
> axes to draw into with the colorbar function.
>
> Regards,
>
> Sebastian
>
>
Personally, I prefer to use the axes_grid toolkit that allows you to specify
if and how you want colorbar axes and provides an array of colorbar axes.
http://matplotlib.sourceforge.net/mpl_toolkits/axes_grid/index.html#toolkit-axesgrid-index
Enjoy!
Ben Root
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