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compound_path.py
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34 lines (24 loc) · 825 Bytes
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"""
Make a compund path -- in this case two simple polygons, a rectangle
and a triangle. Use CLOSEOPOLY and MOVETO for the different parts of
the compound path
"""
import numpy as np
from matplotlib.path import Path
from matplotlib.patches import PathPatch
import matplotlib.pyplot as plt
vertices = []
codes = []
codes = [Path.MOVETO] + [Path.LINETO]*3 + [Path.CLOSEPOLY]
vertices = [(1, 1), (1, 2), (2, 2), (2, 1), (0, 0)]
codes += [Path.MOVETO] + [Path.LINETO]*2 + [Path.CLOSEPOLY]
vertices += [(4, 4), (5, 5), (5, 4), (0, 0)]
vertices = np.array(vertices, float)
path = Path(vertices, codes)
pathpatch = PathPatch(path, facecolor='None', edgecolor='green')
fig, ax = plt.subplots()
ax.add_patch(pathpatch)
ax.set_title('A compound path')
ax.dataLim.update_from_data_xy(vertices)
ax.autoscale_view()
plt.show()