2020-08-31 11:19:06 +10:00

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{
"name": "convex_hull",
"type": "function",
"groups": ["GeometryGroup"],
"description": "Returns the convex hull of a geometry. It represents the minimum convex geometry that encloses all geometries within the set.",
"arguments": [ {"arg":"geometry","description":"a geometry"}],
"examples": [ { "expression":"geom_to_wkt( convex_hull( geom_from_wkt( 'LINESTRING(3 3, 4 4, 4 10)' ) ) )", "returns":"'POLYGON((3 3, 4 10, 4 4, 3 3))'"}
]
}