[gdal-dev] Global state for datum grid access?

[Edzer Pebesma]

This came up here: https://github.com/r-spatial/sf/issues/2166

It seems to me that GDAL queries PROJ's ability to access the network 
for datum grids once, and remembers that. That means that applications 
can't switch this on and off on demand and expect GDAL to follow. Is 
this the case? If this is the case, is there a way applications can ask 
GDAL what this state is?

R package sf interacts with PROJ through GDAL as well as directly. This 
sounds messy, but some users want to get NA coordinates back for points 
that are not transformable.
-- 
Edzer Pebesma (he/him)
University Münster, Institute for Geoinformatics
Heisenbergstrasse 2, 48149 Münster, Germany
Phone: +49 251 8333081