Get coordinates from the contour in matplotlib?

Question

Background

From the documentation example here, one can easily produce the following contour plot with the code snippet.

import matplotlib
import num         


        

Answer 1

You can get the coordinates of the contours from the CS.allsegs list.

Try:

dat0= CS.allsegs[0][0]
plt.plot(dat0[:,0],dat0[:,1])

to plot the first (-1) contour level.