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12e34f2672
make_point_m for creation of PointM geometries. Also add m(point) and z(point) functions for retrieving z/m value of a point or node.
9 lines
265 B
Plaintext
9 lines
265 B
Plaintext
{
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"name": "z",
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"type": "function",
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"description": "Returns the z coordinate of a point geometry.",
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"arguments": [ {"arg":"geom","description":"a point geometry"}],
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"examples": [ { "expression":"z( geom_from_wkt( 'POINTZ(2 5 7)' ) )", "returns":"7"}
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]
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}
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