simple matshow example

fperez · fperez · commit e6b6081d8f0f · 2005-02-12T01:55:55.000Z
svn path=/trunk/matplotlib/; revision=960
diff --git a/examples/matshow.py b/examples/matshow.py
@@ -0,0 +1,22 @@
+#!/usr/bin/env python
+"""Simple matshow() example."""
+
+from matplotlib.pylab import *
+
+def samplemat(dims):
+    """Make a matrix with all zeros and increasing elements on the diagonal"""
+    aa = zeros(dims)
+    for i in range(min(dims)):
+        aa[i,i] = i
+    return aa
+
+# Make a few matrices of strange sizes
+dimlist = [(12,12),(128,64),(64,512),(1024,128)]
+
+for d in dimlist:
+    matshow(samplemat(d))
+
+# Display a random matrix with a specified figure number and a grayscale colormap
+matshow(rand(64,64),fignum=100,cmap=cm.gray)
+
+show()
