SF.net SVN: matplotlib:[6971] trunk/matplotlib

[<jo...@us...>]

Revision: 6971
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=6971&view=rev
Author:   jouni
Date:     2009-03-10 20:45:44 +0000 (Tue, 10 Mar 2009)

Log Message:
-----------
Fix join style bug in pdf.

Modified Paths:
--------------
    trunk/matplotlib/CHANGELOG
    trunk/matplotlib/examples/tests/backend_driver.py
    trunk/matplotlib/lib/matplotlib/backends/backend_pdf.py

Added Paths:
-----------
    trunk/matplotlib/examples/api/joinstyle.py

Modified: trunk/matplotlib/CHANGELOG
===================================================================
--- trunk/matplotlib/CHANGELOG	2009-03-09 15:19:49 UTC (rev 6970)
+++ trunk/matplotlib/CHANGELOG	2009-03-10 20:45:44 UTC (rev 6971)
@@ -1,3 +1,5 @@
+2009-03-10 Fix join style bug in pdf. - JKS
+
 2009-03-07 Add pyplot access to figure number list - EF
 
 2009-02-28 hashing of FontProperties accounts current rcParams - JJL

Added: trunk/matplotlib/examples/api/joinstyle.py
===================================================================
--- trunk/matplotlib/examples/api/joinstyle.py	                        (rev 0)
+++ trunk/matplotlib/examples/api/joinstyle.py	2009-03-10 20:45:44 UTC (rev 6971)
@@ -0,0 +1,31 @@
+#!/usr/bin/env python
+"""
+Illustrate the three different join styles
+"""
+
+import numpy as np
+import matplotlib
+import matplotlib.pyplot as plt
+
+def plot_angle(ax, x, y, angle, style):
+    phi = angle/180*np.pi
+    xx = [x+.5,x,x+.5*np.cos(phi)]
+    yy = [y,y,y+.5*np.sin(phi)]
+    ax.plot(xx, yy, lw=8, color='blue', solid_joinstyle=style)
+    ax.plot(xx[1:], yy[1:], lw=1, color='black')
+    ax.plot(xx[1::-1], yy[1::-1], lw=1, color='black')
+    ax.plot(xx[1:2], yy[1:2], 'o', color='red', markersize=3)
+    ax.text(x,y+.2,'%.0f degrees' % angle)
+
+fig = plt.figure()
+ax = fig.add_subplot(111)
+ax.set_title('Join style')
+
+for x,style in enumerate((('miter', 'round', 'bevel'))):
+    ax.text(x, 5, style)
+    for i in range(5):
+        plot_angle(ax, x, i, pow(2.0,3+i), style)
+
+ax.set_xlim(-.5,2.75)
+ax.set_ylim(-.5,5.5)
+plt.show()

Modified: trunk/matplotlib/examples/tests/backend_driver.py
===================================================================
--- trunk/matplotlib/examples/tests/backend_driver.py	2009-03-09 15:19:49 UTC (rev 6970)
+++ trunk/matplotlib/examples/tests/backend_driver.py	2009-03-10 20:45:44 UTC (rev 6971)
@@ -211,6 +211,7 @@
     'font_family_rc.py',
     'histogram_demo.py',
     'image_zcoord.py',
+    'joinstyle.py',
     'legend_demo.py',
     'line_with_text.py',
     'logo2.py',

Modified: trunk/matplotlib/lib/matplotlib/backends/backend_pdf.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/backends/backend_pdf.py	2009-03-09 15:19:49 UTC (rev 6970)
+++ trunk/matplotlib/lib/matplotlib/backends/backend_pdf.py	2009-03-10 20:45:44 UTC (rev 6971)
@@ -427,6 +427,9 @@
 
         self.beginStream(contentObject.id,
                          self.reserveObject('length of content stream'))
+        # Initialize the pdf graphics state to match the default mpl
+        # graphics context: currently only the join style needs to be set
+        self.output(GraphicsContextPdf.joinstyles['round'], Op.setlinejoin)
 
     def close(self):
         self.endStream()


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