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Question

CityGML 3D Reprojection failed

  • October 11, 2017
  • 1 reply
  • 30 views

Hello everyone,

I have a CityGML dataset from Montreal Open data that seems to be in EPSG:2950

I need to write this CityGML to a Cesium 3D-Tiles dataset (tileset.json + tiles) in EPSG:4978

I tried Reprojector and CS-MAP Reprojector but in vain.

I get an error when I try to do so :

1 reply

daveatsafe
Safer
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  • Safer
  • October 11, 2017

Hi @clement,

The Cesium writer will automatically reproject the output data to the EPSG:4978 coordinate system, as long as the data sent to it has a valid coordinate system. Please try removing the CsmapReprojector transformer.

If you do wish to reproject to a Geocentric coordinate system like EPSG:4978, you must pick a Vertical mode as well, since the elevation is reprojected as well. The best setting for most source coordinate systems would be 'Heights are relative to the ellipsoid(s) or geocentric'.


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