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19 lines
641 B
Plaintext
19 lines
641 B
Plaintext
{
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"name": "distance_to_vertex",
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"type": "function",
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"groups": ["GeometryGroup"],
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"description": "Returns the distance along the geometry to a specified vertex.",
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"arguments": [{
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"arg": "geometry",
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"description": "a linestring geometry"
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}, {
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"arg": "vertex",
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"description": "vertex index, starting from 0; if the value is negative, the selected vertex index will be its total count minus the absolute value"
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}],
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"examples": [{
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"expression": "distance_to_vertex(geometry:=geom_from_wkt('LineString(0 0, 10 0, 10 10)'),vertex:=1)",
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"returns": "10.0"
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}],
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"tags": ["distance", "specified", "vertex"]
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}
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