I have a dataset with 3D buildings in the format CityGML (EPSG: 25832)
and would like to present this in Cesium as 3DTiles. The 3DTiles must be
available in the WGS84 with units in Radians, and at first the longitude and
then the latitude must be listed. (See 3DTiles specification: https://github.com/AnalyticalGraphicsInc/3d-tiles#coordinate-system-and-units)

 

 

Input data:

 

Format: CityGML

 

EPSG: 25832,

 

Unit: metre

 

Geodetic CRS: ETRS89

 

Date: European Terrestrial Reference System 1989

 

Ellipsoid: GRS 1980

 

Example: 544913.83 5460346.67 205.41 (x, y, z)

 

 

Required output data:

 

Format: 3DTiles

 

EPSG: 4326 but in the unit radiant

 

Geodetic CRS: WGS 84

 

Date: World Geodetic System 1984

 

Ellipsoid: WGS 84

 

Prime meridian: Greenwich

 

Example: 0.1678606623,0.86034635,205.41 (longitude, latitude, height)

Here my experiments:

Reader: CityGML (EPSG 25832) -> Writer: 3DTiles (LL84-RADIANS)

Reader: CityGML (EPSG 25832) -> CSMapReprojector (25832 to LL84-RADIANS) -> Writer: 3DTiles (LL84-RADIANS)

 

 

Results: coordinates like this: 4109170.2188849915, 696274.18084379763

How do I create coordinates in radian unit?