Hi Christian,

 

Our implementation of the GeoJSON extraction is based on the most recent GeoJSON RFC. 

This RFC has removed the possibility to use a coordinate reference system other than WGS84 for interoperability concerns as stated in the following article:

 

4.  Coordinate Reference System

   The coordinate reference system for all GeoJSON coordinates is a   geographic coordinate reference system, using the World Geodetic   System 1984 (WGS 84) 8WGS84] datum, with longitude and latitude units   of decimal degrees.  This is equivalent to the coordinate reference   system identified by the Open Geospatial Consortium (OGC) URN   urn:ogc:def:crs:OGC::CRS84.  An OPTIONAL third-position element SHALL   be the height in meters above or below the WGS 84 reference   ellipsoid.  In the absence of elevation values, applications   sensitive to height or depth SHOULD interpret positions as being at   local ground or sea level.   Note: the use of alternative coordinate reference systems was   specified in  GJ2008], but it has been removed from this version of   the specification because the use of different coordinate reference   systems -- especially in the manner specified in  GJ2008] -- has   proven to have interoperability issues.  In general, GeoJSON   processing software is not expected to have access to coordinate   reference system databases or to have network access to coordinate   reference system transformation parameters.  However, where all   involved parties have a prior arrangement, alternative coordinate   reference systems can be used without risk of data being   misinterpreted.

 

Hence, we completely ignore this information even if it may be provided within the uploaded file.

 

Best regard,