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I have a PostGIS database with X, Y, and Z ECEF coordinates and I want to create a layer in Geoserver that displays these coordinates as points in OpenLayers. In Geoserver's create layer page there is a Coordinate Reference System heading with fields Native SRS, Declared SRS, and SRS Handling. I think I want Native SRS to be EPSG:4978, Declared SRS to be EPSG:4326, and SRS Handling to be reproject native to declared but I cannot edit the Native SRS field! Am I trying to do something unsupported?

  • yes, that isn't how that works - set declared to 4978 and let GeoServer handle the rest. I've no idea if it will actually support 4978 though – Ian Turton Jun 21 '17 at 7:44
  • Then why is there a field for Native SRS? – medley56 Jun 21 '17 at 17:26
  • So that well formed srs can appear there. Some times data lies so geoserver allows you to change it. – Ian Turton Jun 21 '17 at 17:28
  • But Geoserver doesn't allow you to change it. It's not an editable field. – medley56 Jun 21 '17 at 17:29
  • Exactly it is an intrinsic part of the data so you can not change it, just override it if it is wrong or undefined – Ian Turton Jun 21 '17 at 17:31
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I don't think you can. It's very unusual to work with cartesian coordinates in GIS, aside from if you're doing geodesy work.

You will need to convert these X, Y, Z coordinates to Lat, Lon (height) before importing into PostGIS.

  • Ok, so Geoserver only supports a few EPSG codes and 4978 isn't one of them? – medley56 Jun 21 '17 at 17:34
  • Hi @medley56, I think you'll find that GeoServer supports nearly all EPSG codes, but not cartesian ones. It's really only supports 2D CRSs, I think. – Alex Leith Jun 21 '17 at 22:31
  • Geoserver supports only 2D CRS but you can get it to recognize other EPSG codes from your geometry objects when mapping to XML schemas. e.g. GeodesyML. – medley56 Aug 10 '17 at 15:20

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