Path Demo.py

Path Demo.py

# coding: utf-8

# Demo of a PathPatch object.

import matplotlib.path as mpath
import matplotlib.patches as mpatches
import matplotlib.pyplot as plt

fig, ax = plt.subplots()

Path = mpath.Path
path_data = [
	(Path.MOVETO, (1.58, -2.57)),
	(Path.CURVE4, (0.35, -1.1)),
	(Path.CURVE4, (-1.75, 2.0)),
	(Path.CURVE4, (0.375, 2.0)),
	(Path.LINETO, (0.85, 1.15)),
	(Path.CURVE4, (2.2, 3.2)),
	(Path.CURVE4, (3, 0.05)),
	(Path.CURVE4, (2.0, -0.5)),
	(Path.CLOSEPOLY, (1.58, -2.57)),
]
codes, verts = zip(*path_data)
path = mpath.Path(verts, codes)
patch = mpatches.PathPatch(path, facecolor='r', alpha=0.5)
ax.add_patch(patch)

# plot control points and connecting lines
x, y = zip(*path.vertices)
line, = ax.plot(x, y, 'go-')

ax.grid()
ax.axis('equal')
plt.show()