search

GeoLatte / geolatte-geom

A geometry model that conforms to the OGC Simple Features for SQL specification.
Other
132 stars 63 forks source link

PackedCoordinateSequence doesn't return the M-coordinate value for XYM geometries #155

Closed maesenka closed 1 year ago

maesenka commented 1 year ago

See this question on StackOverflow.

The bug got introduced because in older versions of JTS the assumption was that M-coordinates, if present, would be the fourth coordinate (or, to put it differently, that we have XY, XYZ or XYZM geometries, but never XYM geometries).

I believe that in later version (1.7+ probably) the API got refined to also work correctly with XYM geometries with the introduction of the getMeasures() method. See the various default methods that are present in the CoordinateSequence interface.