• Home
  • Forums
  • FME Form
  • Transformers
  • I'm tring to convert some CityGML to b3dm tiles. Source data in EPSG:3857 - center is x=4183074.86, y=7496562.311 but tilles in output get some strange values: x=2855853.53, y=2197566.80. How to save the 3857 coordinates?
Question

I'm tring to convert some CityGML to b3dm tiles. Source data in EPSG:3857 - center is x=4183074.86, y=7496562.311 but tilles in output get some strange values: x=2855853.53, y=2197566.80. How to save the 3857 coordinates?

  • 29 April 2021
  • 2 replies
  • 4 views
N
I'm tring to convert some CityGML to b3dm tiles. Source data in EPSG:3857 - center is x=4183074.86, y=7496562.311 but tilles in output get some strange values: x=2855853.53, y=2197566.80. How to save the 3857 coordinates?

2 replies

daveatsafe
Rank
Userlevel 2
Badge +17

Hi @nk_geolcom​ ,

 

Cesium 3D Tiles need to be supplied in an ECEF coordinate system, so FME will automatically convert when writing. You can find more information on ECEF at https://en.wikipedia.org/wiki/ECEF.

N

Thank you!

I see - it's FME writer setting 😕

Reply


Community Stats

28,670
Posts
109,365
Replies
36,531
Members
Terms & ConditionsCookie settings
A product of
Safe Software respectfully acknowledges that we live, learn and work on the traditional and unceded territories of the Kwantlen, Katzie, and Semiahmoo First Nations.