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I need to use WPS to calculate distance between two geometries, the geometries are represented in EPSG:4326.

The geo:distance function of WPS tells: "Returns the minimum distance between two geometries. Measurement is given in the input units, so geographic coordinates are not recommended."

So, how can I do that? Must I convert the coordinates to UTM? if yes, how?

My environment is: PostGIS, Geoserver, and OpenLayers

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    Is the geo:distance process made by yourself? – user30184 Feb 7 '18 at 13:02
  • No, it's from Geoserver. – Faz B Feb 7 '18 at 13:49

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