I'm not exactly sure what you're trying to do. but I think what you
want can be easily achieved by simply using the masked array. Is the
example below similar to what you need?
a = np.arange(100).reshape((10,10))
m1 = np.triu(a, 1) 0
m2 = np.tril(a, -1) 0
#m2 = ~m1
am1 = np.ma.array(a, mask=m1)
am2 = np.ma.array(a, mask=m2)
pcolormesh(am1, cmap=plt.cm.jet)
pcolormesh(am2, cmap=plt.cm.gray)
-JJ
On Wed, Nov 11, 2009 at 12:11 PM, Christian Meesters
meest...@imbie.uni-bonn.de wrote:
Hi,
Is there a way to somehow squeeze two datasets with two different color
maps into one pcolormesh? Say one dataset occupies one triangle (e. g.
numpy.triu(dataset1, 1)) and the second dataset a different area (e. g.
numpy.tril(dataset2, -1)) and then paste the two datasets in one
pcolormesh (e.g. pylab.pcolormesh(numpy.triu(dataset1, 1) +
numpy.tril(dataset2, -1)) ). This will obviously share one colormap. But
does anybody know a trick to use two different ones?
TIA
Christian
PS Forgot to thank Eric Firing for his tip last time I asked. Thank you
Eric: You solved my problem!
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