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19 lines
696 B
Plaintext
19 lines
696 B
Plaintext
{
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"name": "is_closed",
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"type": "function",
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"groups": ["GeometryGroup"],
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"description": "Returns TRUE if a line string is closed (start and end points are coincident), or false if a line string is not closed. If the geometry is not a line string then the result will be NULL.",
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"arguments": [{
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"arg": "geometry",
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"description": "a line string geometry"
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}],
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"examples": [{
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"expression": "is_closed(geom_from_wkt('LINESTRING(0 0, 1 1, 2 2)'))",
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"returns": "FALSE"
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}, {
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"expression": "is_closed(geom_from_wkt('LINESTRING(0 0, 1 1, 2 2, 0 0)'))",
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"returns": "TRUE"
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}],
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"tags": ["points", "start", "closed", "end", "coincident", "result", "false", "line"]
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}
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