[PROJ] Problems adding geoidmodel tag

[Even Rouault]

Javier,

not much you can do but not setting a manual geoid model for that case. 
The pipeline used is highly manually tuned 
from https://github.com/OSGeo/PROJ/blob/master/data/sql/transformations_czechia.sql#L99 
and 
https://github.com/OSGeo/PROJ/blob/master/data/sql/transformations_czechia.sql#L171 
for operating on the CRS defined from the exact EPSG codes. Would be 
very hard to make PROJ realize that your custom WKT would be 
compatible of that pipeline

(The pipeline you get with the geoid model node is not fundamentally 
wrong, just slightly less accurate w.r.t. CUZK recommends for most 
geodesic proof ETRS89 to S-JTSK / Krovak)

Even

Le 03/03/2026 à 17:06, Javier Jimenez Shaw via PROJ a écrit :
> PROJ_NETWORK=ON projinfo EPSG:4258 EPSG:5514+8357 --3d -o proj --bbox 
> 17.8,49,17.81,49.01

-- 
http://www.spatialys.com
My software is free, but my time generally not.