descartes Use geometric objects as matplotlib paths and patches
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Python library objects geometric geometric objects Matplotlib matplotlib paths

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Use geometric objects as matplotlib paths and patches descartes is a Python module that allows you to use Shapely or GeoJSON-like geometric objects as matplotlib paths and patches.Example:from matplotlib import pyplotfrom shapely.geometry import LineStringfrom descartes.patch import PolygonPatchline = LineString()fig = pyplot.figure(1, figsize=(7.5, 3), dpi=180)# 1ax = fig.add_subplot(121)dilated = line.buffer(0.5)patch1 = PolygonPatch(dilated, facecolor='#99ccff', edgecolor='#6699cc')ax.add_patch(patch1)x, y = line.xyax.plot(x, y, color='#999999')ax.set_xlim(-1, 4)ax.set_ylim(-1, 3)#2ax = fig.add_subplot(122)patch2a = PolygonPatch(dilated, facecolor='#cccccc', edgecolor='#999999')ax.add_patch(patch2a)eroded = dilated.buffer(-0.3)# GeoJSON-like data works as wellpolygon = eroded.__geo_interface__# >>> geo# 'Polygon'# >>> geo# ((0.50502525316941682, 0.78786796564403572), (0.5247963548222736, 0.8096820147509064))patch2b = PolygonPatch(polygon, facecolor='#99ccff', edgecolor='#6699cc')ax.add_patch(patch2b)ax.set_xlim(-1, 4)ax.set_ylim(-1, 3)fig.subplots_adjust(0.0, 0.0, 1.0, 1.0, 0.1)fig.savefig('buffering.png')See also: examples/patches.py. Requirements: · Python · Matplotlib · NumPy · Shapely

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