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Drawing circles using matplotlib

Use the pylab.Circle command

import pylab #Imports matplotlib and a host of other useful modules
cir1 = pylab.Circle((0,0), radius=0.75,  fc='y') #Creates a patch that looks like a circle (fc= face color)
cir2 = pylab.Circle((.5,.5), radius=0.25, alpha =.2, fc='b') #Repeat (alpha=.2 means make it very translucent)
ax = pylab.axes(aspect=1) #Creates empty axes (aspect=1 means scale things so that circles look like circles)
ax.add_patch(cir1) #Grab the current axes, add the patch to it
ax.add_patch(cir2) #Repeat
pylab.show()
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Comments

  1. AnonymousDecember 17, 2012 at 7:45 AM

    Thanks. I am new to Python, and just used your code. It works, and is useful.

    As a suggestion, would you think about adding comments to explain the code. It would be very helpful to beginners like me.

    ReplyDelete
  2. AnonymousNovember 26, 2013 at 9:49 AM

    This was of use! Thanks.

    ReplyDelete

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