grid_points_in_poly(shape, verts)

For each (r, c) coordinate on a grid, i.e. (0, 0) , (0, 1) etc., test whether that point lies inside a polygon.

Parameters

shape : tuple (M, N)

Shape of the grid.

verts : (V, 2) array

Specify the V vertices of the polygon, sorted either clockwise or anti-clockwise. The first point may (but does not need to be) duplicated.

Returns

mask : (M, N) ndarray of bool

True where the grid falls inside the polygon.

Test whether points on a specified grid are inside a polygon.

See Also

points_in_poly

Examples

See :

Back References

The following pages refer to to this document either explicitly or contain code examples using this.

skimage.measure.pnpoly.points_in_poly skimage.measure._pnpoly._points_in_poly

Local connectivity graph

Hover to see nodes names; edges to Self not shown, Caped at 50 nodes.

Using a canvas is more power efficient and can get hundred of nodes ; but does not allow hyperlinks; , arrows or text (beyond on hover)

SVG is more flexible but power hungry; and does not scale well to 50 + nodes.

All aboves nodes referred to, (or are referred from) current nodes; Edges from Self to other have been omitted (or all nodes would be connected to the central node "self" which is not useful). Nodes are colored by the library they belong to, and scaled with the number of references pointing them

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