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andrewcottam/split_at_dateline.sql

Last active November 26, 2019 19:02
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Split a polygon that spans the dateline in PostGIS
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split_at_dateline.sql
SELECT ST_WrapX(ST_Split((SELECT ST_ShiftLongitude(ST_Polygon('LINESTRING(179 18, -179 18, -179 17, 179 17, 179 18)'::geometry, 4326))),(SELECT ST_ShiftLongitude(ST_GeogFromText('LINESTRING(180 90, 180 -90)')::geometry))),180,-360);
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