SF.net SVN: matplotlib: [3769] trunk/matplotlib/examples/colorbar_only.py

[<ef...@us...>]

Revision: 3769
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=3769&view=rev
Author:   efiring
Date:     2007-09-03 11:27:22 -0700 (Mon, 03 Sep 2007)

Log Message:
-----------
Added example of a standalone colorbar.

Added Paths:
-----------
    trunk/matplotlib/examples/colorbar_only.py

Added: trunk/matplotlib/examples/colorbar_only.py
===================================================================
--- trunk/matplotlib/examples/colorbar_only.py	                        (rev 0)
+++ trunk/matplotlib/examples/colorbar_only.py	2007-09-03 18:27:22 UTC (rev 3769)
@@ -0,0 +1,28 @@
+'''
+Make a colorbar as a separate figure.
+'''
+
+import pylab
+import matplotlib as mpl
+
+# Make a figure and axes with dimensions as desired.
+fig = pylab.figure(figsize=(8,1.5))
+ax = fig.add_axes([0.05, 0.4, 0.9, 0.5])
+
+# Set the colormap and norm to correspond to the data for which
+# the colorbar will be used.
+cmap = mpl.cm.cool
+norm = mpl.colors.Normalize(vmin=5, vmax=10)
+
+# ColorbarBase derives from ScalarMappable and puts a colorbar
+# in a specified axes, so it has everything needed for a
+# standalone colorbar.  There are many more kwargs, but the
+# following gives a basic continuous colorbar with ticks
+# and labels.
+cb = mpl.colorbar.ColorbarBase(ax, cmap=cmap,
+                                   norm=norm,
+                                   orientation='horizontal')
+cb.set_label('Some Units')
+
+pylab.show()
+


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