Some example code for how to plot an arrow using the Arrow function.
1 from pylab import *
2 from numarray import *
3
4 x = arange(10)
5 y = x
6
7 # Plot junk and then a filled region
8 plot(x, y)
9
10 # Now lets make an arrow object
11 arr = Arrow(2, 2, 1, 1, edgecolor='white')
12
13 # Get the subplot that we are currently working on
14 ax = gca()
15
16 # Now add the arrow
17 ax.add_patch(arr)
18
19 # We should be able to make modifications to the arrow.
20 # Lets make it green.
21 arr.set_facecolor('g')
