ThinkGeo.com    |     Documentation    |     Premium Support

Problem with Projection EPSG:3857 - OpenStreetMap

#1

Hi,
I have a problem when I try to project FeatureLayer from EPSG 2154 to EPSG 3857.
There is a shift between my shapelayers (2154) and the basemap OpenStreetMap (3857).

SHIFT.PNG1829×854 700 KB

Can you please help me.
Thanks

1 Like
#2

Hi Ismael,

Please do some test like this:

  1. Double check the code, try UnmanagedProj4 for reprojection.
  2. Replace the background layer to Bing and Google map for make sure whether the 2154 don’t match all 3857 map
  3. Try to render a 4326 background layer and see whether 2154 reprojection map can match it.

We need to know where is the problem,
a. Data problem
b. Projection class problem
c. Background layer problem

Please let me know your test result and I can help you try more solution.

Regards,

Don