I am trying to make an illustration that looks like this:
But instead I get this:
Here is my program:
from pylab import *
from matplotlib import colors
# A = [[1,2,3,4,5]]
A = [[0],[1]]
Amap = colors.ListedColormap(['blue','green'])
figure(1)
imshow(A, cmap=Amap, interpolation='nearest')
annotate('AA BB',xy=(0,0), xytext=(.8,0), fontsize=20)
axis('off')
savefig('graph-py.pdf')
show()
I've tried everything to get the arrow, but can't seem to make it happen. Any ideas?
I usually look through the gallery to find examples of what I want to do. annotation_demo2 looked similar to what you wanted ... I came up with this. Looks like you were missing the arrowprops kwarg.
from pylab import *
from matplotlib import colors
# A = [[1,2,3,4,5]]
A = [[0],[1]]
Amap = colors.ListedColormap(['blue','green'])
fig = figure(1)
ax = fig.add_subplot(111, autoscale_on=False)
imshow(A, cmap=Amap, interpolation='nearest')
ax.annotate('AA BB', fontsize=20, xy=(.25, .75),
xycoords='data', xytext=(150, -6),
textcoords='offset points',
arrowprops=dict(arrowstyle="->",
linewidth = 5.,
color = 'red')
)
ax.annotate('CC DD', fontsize=20, xy=(.25, .25),
xycoords='data', xytext=(150, -6),
textcoords='offset points',
arrowprops=dict(width = 5.,
headwidth = 15.,
frac = 0.2,
shrink = 0.05,
linewidth = 2,
color = 'red')
)
axis('off')
savefig('graph-py.pdf')
show()
close()
Looks like this: