[gdal-dev] Test Failures

[Andrew Bell]

Here is the output tif file along with the command and its terminal output.

On Tue, Apr 27, 2021 at 3:02 PM Even Rouault <even.rouault at spatialys.com>
wrote:

>
> Le 27/04/2021 à 20:49, Andrew Bell a écrit :
>
>
>
> On Tue, Apr 27, 2021 at 2:27 PM Even Rouault <even.rouault at spatialys.com>
> wrote:
>
>> Andrew,
>>
>> This could be due to the PROJ version, but as I'm running with 8.0 too
>> (and one of the CI config runs PROJ master), I suspect you just need to
>> install the "conus" grid for NAD27 to WGS84 transformations into
>> {proj_prefix}/share/proj . Unpack
>> http://download.osgeo.org/proj/proj-datumgrid-1.8.tar.gz
>>
> I have PROJ_NETWORK set to ON. I was under the impression that this would
> cause PROJ to find whatever grids shift files it needed at runtime. Is
> there more configuration that's necessary to get this to happen or do I
> misunderstand the PROJ_NETWORK setting?
>
> That should be fine. Actually I was wrong. This test case doesn't involve
> any datum shift / grids as it is EPSG:4326 to EPSG:3857 reprojection.
>
> That might then just be a subtle different rounding issue in computations
> in GDAL and/or PROJ, or more likely, due to using a different JPEG library
> as this test case involves JPEG compression. If that was the case, you
> might add your checksums as an alternative expected output. We do that in a
> number of places.
>
> Looking a few lines before the failure, I actually see that the CI got
> that issue and we worked around it with:
>
>     if sys.platform == 'darwin' and gdal.GetConfigOption('TRAVIS', None)
> is not None:
>         assert got_cs != [0, 0, 0]
>     else:
>
> Could you run
>
> gdal_translate ../autotest/gdrivers/data/small_world.tif out.tif -of COG
> co TILING_SCHEME=GoogleMapsCompatible -co COMPRESS=JPEG
>
> and attach the resulting file ?
>
>
> Thanks,
>
> --
> Andrew Bell
> andrew.bell.ia at gmail.com
>
> -- http://www.spatialys.com
> My software is free, but my time generally not.
>
>

-- 
Andrew Bell
andrew.bell.ia at gmail.com
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