polygon(r, c, shape=None)
Row coordinates of vertices of polygon.
Column coordinates of vertices of polygon.
Image shape which is used to determine the maximum extent of output pixel coordinates. This is useful for polygons that exceed the image size. If None, the full extent of the polygon is used. Must be at least length 2. Only the first two values are used to determine the extent of the input image.
Pixel coordinates of polygon. May be used to directly index into an array, e.g. img[rr, cc] = 1
.
Generate coordinates of pixels within polygon.
>>> from skimage.draw import polygonSee :
... img = np.zeros((10, 10), dtype=np.uint8)
... r = np.array([1, 2, 8])
... c = np.array([1, 7, 4])
... rr, cc = polygon(r, c)
... img[rr, cc] = 1
... img array([[0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 1, 1, 1, 1, 1, 0, 0, 0], [0, 0, 0, 1, 1, 1, 0, 0, 0, 0], [0, 0, 0, 1, 1, 1, 0, 0, 0, 0], [0, 0, 0, 0, 1, 0, 0, 0, 0, 0], [0, 0, 0, 0, 1, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]], dtype=uint8)
The following pages refer to to this document either explicitly or contain code examples using this.
skimage.draw.draw.polygon
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