2020-07-31 03:07:46 +10:00

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{
"name": "is_valid",
"type": "function",
"groups": ["GeometryGroup"],
"description": "Returns true if a geometry is valid; if it is well-formed in 2D according to the OGC rules.",
"arguments": [ {"arg":"geometry","description":"a geometry"}],
"examples": [ { "expression":"is_valid(geom_from_wkt('LINESTRING(0 0, 1 1, 2 2, 0 0)'))", "returns":"true"},
{ "expression":"is_valid(geom_from_wkt('LINESTRING(0 0)'))", "returns":"false"}]
}