[QGIS-Developer] proj5 and epsg:3857 ?

[Even Rouault]

On vendredi 9 mars 2018 11:38:17 CET Even Rouault wrote:
> Kristian 
> 
> your are certainly not too blame at à personal level. this is the kind of
> this that happen inevitably given a certain amount of changes . i'm
> surprised that the GDAL autotest suite did not catch this but the cause is
> likely that the GDAL c++ class that wraps proj has an optimisation when
> transforming from 3857 to 4326. 

My bad: going from datum=WGS84 to WebMercator wasn't actually affected by 
the bug. Only if you go from datum != WGS84 to WebMercator. And there wasn't 
indeed a test for that later case in GDAL autotest. Now added.

-- 
Spatialys - Geospatial professional services
http://www.spatialys.com
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