To get the (x, y) values of a line that is plotted by a contour plot, we can take the following steps −
- Set the figure size and adjust the padding between and around the subplots.
- Create a 3D contour plot using contour() method.
- Get the contour plot collections and get the paths.
- To display the figure, use show() method.
Example
import matplotlib.pyplot as plt plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True m = [[3, 2, 1, 0], [2, 4, 1, 0], [2, 4, 1, 3], [4, 3, 1, 3]] cs = plt.contour([3, 4, 2, 1], [5, 1, 2, 3], m) p1 = cs.collections[0].get_paths() for item in p1: print(item.vertices) plt.show()