SF.net SVN: matplotlib: [5250] trunk/matplotlib

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

Revision: 5250
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=5250&view=rev
Author:   efiring
Date:     2008-05-24 00:36:47 -0700 (Sat, 24 May 2008)

Log Message:
-----------
Provide function and method to control the plot color cycle

Modified Paths:
--------------
    trunk/matplotlib/API_CHANGES
    trunk/matplotlib/CHANGELOG
    trunk/matplotlib/examples/tests/backend_driver.py
    trunk/matplotlib/lib/matplotlib/axes.py

Modified: trunk/matplotlib/API_CHANGES
===================================================================
--- trunk/matplotlib/API_CHANGES	2008-05-24 00:51:33 UTC (rev 5249)
+++ trunk/matplotlib/API_CHANGES	2008-05-24 07:36:47 UTC (rev 5250)
@@ -1,3 +1,7 @@
+    New axes function and Axes method provide control over the plot
+    color cycle: axes.set_default_color_cycle(clist) and
+    Axes.set_color_cycle(clist).
+
     matplotlib now requires python2.4, so matplotlib.cbook will no
     loner provide set, enumerate, reversed or izip compatability functions
 
@@ -2,3 +6,3 @@
     In numpy 1.0 bins are specified by the left edges only.  The axes
-    method "hist" now uses future numpy 1.3 semantic for histograms. 
+    method "hist" now uses future numpy 1.3 semantic for histograms.
     Providing binedges, the last value gives the upper-right edge now,

Modified: trunk/matplotlib/CHANGELOG
===================================================================
--- trunk/matplotlib/CHANGELOG	2008-05-24 00:51:33 UTC (rev 5249)
+++ trunk/matplotlib/CHANGELOG	2008-05-24 07:36:47 UTC (rev 5250)
@@ -1,3 +1,6 @@
+2008-05-23 Provided a function and a method for controlling the
+           plot color cycle. - EF
+
 2008-05-23 Major revision of hist(). Can handle 2D arrays and create
            stacked histogram plots; keyword 'width' deprecated and
            rwidth (relative width) introduced; align='edge' changed

Modified: trunk/matplotlib/examples/tests/backend_driver.py
===================================================================
--- trunk/matplotlib/examples/tests/backend_driver.py	2008-05-24 00:51:33 UTC (rev 5249)
+++ trunk/matplotlib/examples/tests/backend_driver.py	2008-05-24 07:36:47 UTC (rev 5250)
@@ -114,6 +114,7 @@
 api_dir = os.path.join('..', 'api')
 api_files = [
     'colorbar_only.py',
+    'color_cycle.py',
 ]
 
 

Modified: trunk/matplotlib/lib/matplotlib/axes.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/axes.py	2008-05-24 00:51:33 UTC (rev 5249)
+++ trunk/matplotlib/lib/matplotlib/axes.py	2008-05-24 07:36:47 UTC (rev 5250)
@@ -135,6 +135,18 @@
 
     return linestyle, marker, color
 
+def set_default_color_cycle(clist):
+    """
+    Change the default cycle of colors that will be used by the plot
+    command.  This must be called before creating the Axes to which
+    it will apply; it will apply to all future Axes.
+
+    clist is a sequence of mpl color specifiers
+
+    """
+    _process_plot_var_args.defaultColors = clist[:]
+    rcParams['lines.color'] = clist[0]
+
 class _process_plot_var_args:
     """
 
@@ -170,6 +182,12 @@
 
         self.count = 0
 
+    def set_color_cycle(self, clist):
+        self.colors = clist[:]
+        self.firstColor = self.colors[0]
+        self.Ncolors = len(self.colors)
+        self.count = 0
+
     def _get_next_cycle_color(self):
         if self.count==0:
             color = self.firstColor
@@ -828,6 +846,15 @@
         'clear the axes'
         self.cla()
 
+    def set_color_cycle(self, clist):
+        """
+        Set the color cycle for any future plot commands on this Axes.
+
+        clist is a list of mpl color specifiers.
+        """
+        self._get_lines.set_color_cycle(clist)
+
+
     def ishold(self):
         'return the HOLD status of the axes'
         return self._hold


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