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Use for questions which involve a GIS principle or theory and are software agnostic

4 votes

Algorithms for matching segments

If you tear apart one of the linestrings to compare and test if the vertexpoints is within some distance from the other linestring to compare you can control the test in many ways. those examples work …
Nicklas Avén's user avatar
23 votes

What are Definition, Algorithms and Practical Solutions for Concave Hull?

There is an implementation of ST_ConcaveHull in PostGIS trunk. http://postgis.net/docs/ST_ConcaveHull.html
Nicklas Avén's user avatar