There is specific code for QGIS to handle transformation between EPSG:3857 and
EPSG:4326 due to EPSG:3857 not being valid at poles. See the comments at
https://github.com/qgis/QGIS/blob/master/src/core/proj/
qgscoordinatetransform.cpp#L585
[https://mailtrack.io/l/3b9f0f5d1696eca585d974232660d3c67b8
Hi ,
the render in QGIS is always done on the fly, there is no caching of
prerendered data, except for online webservices.
PROJ is indeed the library doing the job.
Régis
On 27/02/2024 14:00, Ionut Ungurianu via QGIS-User wrote:
Hi!
I’m looking to understand in a more advanced way how QGI
Hi!
I’m looking to understand in a more advanced way how QGIS handles on-the-fly
projection.
In my case I set the project crs in epsg:3857 and I have a raster layer in
epsg:4326. In this case what is happening with the layer?
I know that it’s based on PROJ, but I’m wondering what is actually h
