I'm using IPython in pylab mode (all functions at fingertip), and wanted to annotate certain plot, lets say plot([1,3,2]) with rectangle Rectangle((1,1),1,1)
How can I draw a simple rectangle in this pylab mode, that is without using figure, axes, subplots... but reference just created plot in easiest possible way
in this pylab mode, that is without using figure, axes, subplots
Figues, axes, and subplots exist in the pylab framework too. If I were using the pylab interface, I'd simply throw a subplot(111) in there and then use sp.add_patch(Rectangle(etc)). But you can also grab the current axes/figure using gca() and gcf():
>>> from pylab import *
>>> plot([1,3,2])
[<matplotlib.lines.Line2D object at 0x102bc8950>]
>>> gca()
<matplotlib.axes.AxesSubplot object at 0x102790cd0>
>>> gca().add_patch(Rectangle((1,1),1,1))
<matplotlib.patches.Rectangle object at 0x102790510>
>>> savefig("rect.png")
The pylab approach is simple enough for very basic tasks, but doesn't scale as well up to more complex ones.
