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16 lines
588 B
Plaintext
16 lines
588 B
Plaintext
{
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"name": "num_interior_rings",
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"type": "function",
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"groups": ["GeometryGroup"],
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"description": "Returns the number of interior rings in a polygon or geometry collection, or NULL if the input geometry is not a polygon or collection.",
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"arguments": [{
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"arg": "geometry",
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"description": "input geometry"
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}],
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"examples": [{
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"expression": "num_interior_rings(geom_from_wkt('POLYGON((-1 -1, 4 0, 4 2, 0 2, -1 -1),(-0.1 -0.1, 0.4 0, 0.4 0.2, 0 0.2, -0.1 -0.1))'))",
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"returns": "1"
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}],
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"tags": ["rings", "holes", "count", "polygon", "collection", "interior"]
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}
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