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11 lines
675 B
Plaintext
11 lines
675 B
Plaintext
{
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"name": "is_empty",
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"type": "function",
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"description": "Returns true if a geometry is empty (without coordinates), false if the geometry is not empty and NULL if there is no geometry. See also `is_empty_or_null`.",
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"arguments": [ {"arg":"geom","description":"a geometry"}],
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"examples": [ { "expression":"is_empty(geom_from_wkt('LINESTRING(0 0, 1 1, 2 2)'))", "returns":"false"},
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{ "expression":"is_empty(geom_from_wkt('LINESTRING EMPTY'))", "returns":"true"},
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{ "expression":"is_empty(geom_from_wkt('POINT(7 4)'))", "returns":"false"},
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{ "expression":"is_empty(geom_from_wkt('POINT EMPTY'))", "returns":"true"} ]
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}
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