cleaned legend demo example

jdh2358 · jdh2358 · commit db884dd37978 · 2008-07-02T11:08:22.000Z
svn path=/trunk/matplotlib/; revision=5705
diff --git a/examples/api/legend_demo.py b/examples/api/legend_demo.py
@@ -0,0 +1,41 @@
+import numpy as np
+import matplotlib.pyplot as plt
+
+a = np.arange(0,3,.02)
+b = np.arange(0,3,.02)
+c = np.exp(a)
+d = c[::-1]
+
+fig = plt.figure()
+ax = fig.add_subplot(111)
+ax.plot(a,c,'k--',a,d,'k:',a,c+d,'k')
+leg = ax.legend(('Model length', 'Data length', 'Total message length'),
+           'upper center', shadow=True)
+ax.set_ylim([-1,20])
+ax.grid(False)
+ax.set_xlabel('Model complexity --->')
+ax.set_ylabel('Message length --->')
+ax.set_title('Minimum Message Length')
+
+ax.set_yticklabels([])
+ax.set_xticklabels([])
+
+# set some legend properties.  All the code below is optional.  The
+# defaults are usually sensible but if you need more control, this
+# shows you how
+
+# the matplotlib.patches.Rectangle instance surrounding the legend
+frame  = leg.get_frame()  
+frame.set_facecolor('0.80')    # set the frame face color to light gray
+
+# matplotlib.text.Text instances
+for t in leg.get_texts():
+    t.set_fontsize('small')    # the legend text fontsize
+
+# matplotlib.lines.Line2D instances
+for l in leg.get_lines():
+    l.set_linewidth(1.5)  # the legend line width
+plt.show()
+
+
+
diff --git a/examples/pylab_examples/hexbin_demo.py b/examples/pylab_examples/hexbin_demo.py
@@ -6,7 +6,9 @@
 """
 
 import numpy as np
+import matplotlib.cm as cm
 import  matplotlib.pyplot as plt
+
 n = 100000
 x = np.random.standard_normal(n)
 y = 2.0 + 3.0 * x + 4.0 * np.random.standard_normal(n)
@@ -17,14 +19,14 @@
 
 plt.subplots_adjust(hspace=0.5)
 plt.subplot(121)
-plt.hexbin(x,y)
+plt.hexbin(x,y, cmap=cm.jet)
 plt.axis([xmin, xmax, ymin, ymax])
 plt.title("Hexagon binning")
 cb = plt.colorbar()
 cb.set_label('counts')
 
 plt.subplot(122)
-plt.hexbin(x,y,bins='log')
+plt.hexbin(x,y,bins='log', cmap=cm.jet)
 plt.axis([xmin, xmax, ymin, ymax])
 plt.title("With a log color scale")
 cb = plt.colorbar()
diff --git a/examples/pylab_examples/legend_demo.py b/examples/pylab_examples/legend_demo.py
@@ -4,44 +4,43 @@
 #See http://matplotlib.sf.net/examples/legend_demo2.py for an example
 #controlling which lines the legend uses and the order
 
-
-from pylab import *
-
-a = arange(0,3,.02)
-b = arange(0,3,.02)
-c=exp(a)
-d=c.tolist()
-d.reverse()
-d = array(d)
-
-ax = subplot(111)
-plot(a,c,'k--',a,d,'k:',a,c+d,'k')
-legend(('Model length', 'Data length', 'Total message length'),
-       'upper center', shadow=True)
-ax.set_ylim([-1,20])
-ax.grid(0)
-xlabel('Model complexity --->')
-ylabel('Message length --->')
-title('Minimum Message Length')
-setp(gca(), 'yticklabels', [])
-setp(gca(), 'xticklabels', [])
+import numpy as np
+import matplotlib.pyplot as plt
+
+a = np.arange(0,3,.02)
+b = np.arange(0,3,.02)
+c = np.exp(a)
+d = c[::-1]
+
+ax = plt.subplot(111)
+plt.plot(a,c,'k--',a,d,'k:',a,c+d,'k')
+plt.legend(('Model length', 'Data length', 'Total message length'),
+           'upper center', shadow=True)
+plt.ylim([-1,20])
+plt.grid(False)
+plt.xlabel('Model complexity --->')
+plt.ylabel('Message length --->')
+plt.title('Minimum Message Length')
+
+plt.setp(plt.gca(), 'yticklabels', [])
+plt.setp(plt.gca(), 'xticklabels', [])
 
 # set some legend properties.  All the code below is optional.  The
 # defaults are usually sensible but if you need more control, this
 # shows you how
-leg = gca().get_legend()
+leg = plt.gca().get_legend()
 ltext  = leg.get_texts()  # all the text.Text instance in the legend
 llines = leg.get_lines()  # all the lines.Line2D instance in the legend
 frame  = leg.get_frame()  # the patch.Rectangle instance surrounding the legend
 
 # see text.Text, lines.Line2D, and patches.Rectangle for more info on
 # the settable properties of lines, text, and rectangles
 frame.set_facecolor('0.80')      # set the frame face color to light gray
-setp(ltext, fontsize='small')    # the legend text fontsize
-setp(llines, linewidth=1.5)      # the legend linewidth
+plt.setp(ltext, fontsize='small')    # the legend text fontsize
+plt.setp(llines, linewidth=1.5)      # the legend linewidth
 #leg.draw_frame(False)           # don't draw the legend frame
-#savefig('legend_demo')
-show()
+#plt.savefig('legend_demo')
+plt.show()
 
 
 
diff --git a/lib/matplotlib/axes.py b/lib/matplotlib/axes.py
@@ -3592,7 +3592,7 @@ def legend(self, *args, **kwargs):
 
         **Example:**
 
-        .. plot:: legend_demo.py
+        .. plot:: ../mpl_examples/api/legend_demo.py
         """
 
         def get_handles():
