SF.net SVN: matplotlib:[6876] trunk/matplotlib

[<as...@us...>]

Revision: 6876
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=6876&view=rev
Author:   astraw
Date:     2009-02-04 21:43:08 +0000 (Wed, 04 Feb 2009)

Log Message:
-----------
Add extent keyword arg to hexbin

Modified Paths:
--------------
    trunk/matplotlib/CHANGELOG
    trunk/matplotlib/lib/matplotlib/axes.py

Modified: trunk/matplotlib/CHANGELOG
===================================================================
--- trunk/matplotlib/CHANGELOG	2009-02-04 20:06:17 UTC (rev 6875)
+++ trunk/matplotlib/CHANGELOG	2009-02-04 21:43:08 UTC (rev 6876)
@@ -1,3 +1,5 @@
+2009-02-04 Add extent keyword arg to hexbin - ADS
+
 2009-02-04 Fix bug in mathtext related to \dots and \ldots - MGD
 
 2009-02-03 Change default joinstyle to round - MGD

Modified: trunk/matplotlib/lib/matplotlib/axes.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/axes.py	2009-02-04 20:06:17 UTC (rev 6875)
+++ trunk/matplotlib/lib/matplotlib/axes.py	2009-02-04 21:43:08 UTC (rev 6876)
@@ -5242,7 +5242,7 @@
     scatter.__doc__ = cbook.dedent(scatter.__doc__) % martist.kwdocd
 
     def hexbin(self, x, y, C = None, gridsize = 100, bins = None,
-                    xscale = 'linear', yscale = 'linear',
+                    xscale = 'linear', yscale = 'linear', extent = None,
                     cmap=None, norm=None, vmin=None, vmax=None,
                     alpha=1.0, linewidths=None, edgecolors='none',
                     reduce_C_function = np.mean, mincnt=None, marginals=False,
@@ -5311,6 +5311,10 @@
             colormapped rectagles along the bottom of the x-axis and
             left of the y-axis
 
+          *extent*: [ None | scalars (left, right, bottom, top) ]
+            The limits of the bins. The default assigns the limits
+            based on gridsize, x, y, xscale and yscale.
+
         Other keyword arguments controlling color mapping and normalization
         arguments:
 
@@ -5389,10 +5393,13 @@
             x = np.log10(x)
         if yscale=='log':
             y = np.log10(y)
-        xmin = np.amin(x)
-        xmax = np.amax(x)
-        ymin = np.amin(y)
-        ymax = np.amax(y)
+        if extent is not None:
+            xmin, xmax, ymin, ymax = extent
+        else:
+            xmin = np.amin(x)
+            xmax = np.amax(x)
+            ymin = np.amin(y)
+            ymax = np.amax(y)
         # In the x-direction, the hexagons exactly cover the region from
         # xmin to xmax. Need some padding to avoid roundoff errors.
         padding = 1.e-9 * (xmax - xmin)


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