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{
"name": "extrude",
"type": "function",
"groups": ["GeometryGroup"],
"description": "Returns an extruded version of the input (Multi-)Curve or (Multi-)Linestring geometry with an extension specified by x and y.",
"arguments": [{
"arg": "geometry",
"description": "a curve or linestring geometry"
}, {
"arg": "x",
"description": "x extension, numeric value"
}, {
"arg": "y",
"description": "y extension, numeric value"
}],
"examples": [{
"expression": "geom_to_wkt(extrude(geom_from_wkt('LineString(1 2, 3 2, 4 3)'), 1, 2))",
"returns": "'Polygon ((1 2, 3 2, 4 3, 5 5, 4 4, 2 4, 1 2))'"
}, {
"expression": "geom_to_wkt(extrude(geom_from_wkt('MultiLineString((1 2, 3 2), (4 3, 8 3))'), 1, 2))",
"returns": "'MultiPolygon (((1 2, 3 2, 4 4, 2 4, 1 2)),((4 3, 8 3, 9 5, 5 5, 4 3)))'"
}],
"tags": ["curve", "version", "extension", "input", "specified", "extruded", "linestring", "multi"]
}