« Changelog History


geojson v1.0.1 Release Notes

    • Corrected an issue with the Polygon (here)
      • Introduced the LinearRing datatype to handle the LinearRings described in the spec.
        • Valid JSON for a LinearRing contains at least 4 points (this is checked, parsing fails if the list is too short) and the last element should match the first, but this isnt checked due to performance issues with the current implementation (though its a resolvable issue)).
        • A LinearRing can be converted to a List with fromLinearRing or you can just fold/traverse over it.
        • Creating a LinearRing can be done with one of these:
          • makeLinearRing :: a -> a -> a -> [a] -> LinearRing a
          • fromList and fromListWithEqCheck, which will return a Validate result (see the type sigs) and Data.Validation