SF.net SVN: matplotlib:[8715] branches/v1_0_maint/examples/api/artist_demo. py

[<jd...@us...>]

Revision: 8715
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=8715&view=rev
Author:   jdh2358
Date:     2010-09-22 12:46:38 +0000 (Wed, 22 Sep 2010)

Log Message:
-----------
added Bartosz Telenczuk's artist demo

Added Paths:
-----------
    branches/v1_0_maint/examples/api/artist_demo.py

Added: branches/v1_0_maint/examples/api/artist_demo.py
===================================================================
--- branches/v1_0_maint/examples/api/artist_demo.py	                        (rev 0)
+++ branches/v1_0_maint/examples/api/artist_demo.py	2010-09-22 12:46:38 UTC (rev 8715)
@@ -0,0 +1,119 @@
+"""
+Show examples of matplotlib artists
+http://matplotlib.sourceforge.net/api/artist_api.html
+
+Several examples of standard matplotlib graphics primitives (artists)
+are drawn using matplotlib API. Full list of artists and the
+documentation is available at
+http://matplotlib.sourceforge.net/api/artist_api.html
+
+Copyright (c) 2010, Bartosz Telenczuk
+
+License: This work is licensed under the BSD. A copy should be
+included with this source code, and is also available at
+http://www.opensource.org/licenses/bsd-license.php 
+"""
+
+
+import numpy as np
+import matplotlib.pyplot as plt
+import matplotlib
+from matplotlib.collections import PatchCollection
+import matplotlib.path as mpath
+import matplotlib.patches as mpatches
+import matplotlib.lines as mlines
+
+font = "sans-serif"
+fig = plt.figure(figsize=(5,5))
+ax = plt.axes([0,0,1,1])
+
+# create 3x3 grid to plot the artists
+pos = np.mgrid[0.2:0.8:3j, 0.2:0.8:3j].reshape(2, -1)
+
+patches = []
+
+# add a circle
+art = mpatches.Circle(pos[:,0], 0.1,ec="none")
+patches.append(art)
+plt.text(pos[0,0], pos[1,0]-0.15, "Circle", ha="center",
+        family=font, size=14)
+
+# add a rectangle
+art = mpatches.Rectangle(pos[:,1] - np.array([0.025, 0.05]), 0.05, 0.1,
+        ec="none")
+patches.append(art)
+plt.text(pos[0,1], pos[1,1]-0.15, "Rectangle", ha="center",
+        family=font, size=14)
+
+# add a wedge
+wedge = mpatches.Wedge(pos[:,2], 0.1, 30, 270, ec="none")
+patches.append(wedge)
+plt.text(pos[0,2], pos[1,2]-0.15, "Wedge", ha="center",
+        family=font, size=14)
+
+# add a Polygon
+polygon = mpatches.RegularPolygon(pos[:,3], 5, 0.1)
+patches.append(polygon)
+plt.text(pos[0,3], pos[1,3]-0.15, "Polygon", ha="center",
+        family=font, size=14)
+
+#add an ellipse
+ellipse = mpatches.Ellipse(pos[:,4], 0.2, 0.1)
+patches.append(ellipse)
+plt.text(pos[0,4], pos[1,4]-0.15, "Ellipse", ha="center",
+        family=font, size=14)
+
+#add an arrow
+arrow = mpatches.Arrow(pos[0,5]-0.05, pos[1,5]-0.05, 0.1, 0.1, width=0.1)
+patches.append(arrow)
+plt.text(pos[0,5], pos[1,5]-0.15, "Arrow", ha="center",
+        family=font, size=14)
+
+# add a path patch 
+Path = mpath.Path
+verts = np.array([
+     (0.158, -0.257),
+     (0.035, -0.11),
+     (-0.175, 0.20),
+     (0.0375, 0.20),
+     (0.085, 0.115),
+     (0.22, 0.32),
+     (0.3, 0.005),
+     (0.20, -0.05),
+     (0.158, -0.257),
+    ])
+verts = verts-verts.mean(0)
+codes = [Path.MOVETO, 
+         Path.CURVE4, Path.CURVE4, Path.CURVE4, Path.LINETO,
+         Path.CURVE4, Path.CURVE4, Path.CURVE4, Path.CLOSEPOLY]
+
+path = mpath.Path(verts/2.5+pos[:,6], codes)
+patch = mpatches.PathPatch(path)
+patches.append(patch)
+plt.text(pos[0,6], pos[1,6]-0.15, "PathPatch", ha="center",
+        family=font, size=14)
+
+# add a fancy box
+fancybox = mpatches.FancyBboxPatch(
+        pos[:,7]-np.array([0.025, 0.05]), 0.05, 0.1, 
+        boxstyle=mpatches.BoxStyle("Round", pad=0.02))
+patches.append(fancybox)
+plt.text(pos[0,7], pos[1,7]-0.15, "FancyBoxPatch", ha="center",
+        family=font, size=14)
+
+# add a line
+x,y = np.array([[-0.06, 0.0, 0.1], [0.05,-0.05, 0.05]])
+line = mlines.Line2D(x+pos[0,8], y+pos[1,8], lw=5.,
+        alpha=0.4)
+plt.text(pos[0,8], pos[1,8]-0.15, "Line2D", ha="center",
+        family=font, size=14)
+
+colors = 100*np.random.rand(len(patches))
+collection = PatchCollection(patches, cmap=matplotlib.cm.jet, alpha=0.4)
+collection.set_array(np.array(colors))
+ax.add_collection(collection)
+ax.add_line(line)
+ax.set_xticks([])
+ax.set_yticks([])
+
+plt.show()


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