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This function determines if a given geometry crosses the International Date Line. It operates by checking if the difference in longitude between any pair of consecutive points in the geometry exceeds 180 degrees. If such a difference is found, it is assumed that the geometry crosses the Date Line. It returns true if the geometry crosses the Date Line, and false otherwise.
The function assumes that the provided geometry is in lon/lat coordinate reference system where longitude values range from -180 to 180 degrees.
For multi-geometries (e.g., MultiPolygon, MultiLineString), this function will return true if any one of the geometries within the multi-geometry crosses the International Date Line.
ST_CrossesDateLine

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Signatures

ST_CrossesDateLine(geometry: Geometry)

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Parameters

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geometry
Geometry
required
The input geometry.

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Return type

Returns true or false.

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Examples

SELECT ST_CrossesDateLine(ST_GeomFromWKT('LINESTRING(170 30, -170 30)'))

true
For geometries that span more than 180 degrees in longitude without actually crossing the Date Line, this function may still return true, indicating a crossing.