[gdal-dev] feet converting to meters unexpectedly

[Even Rouault]

I should also mention that you can probably workaround the issue by 
adding the -novshift switch to your gdalwarp command line: 
https://gdal.org/programs/gdalwarp.html#cmdoption-gdalwarp-novshift

Le 09/01/2023 à 20:10, Even Rouault a écrit :
>
> Hi,
>
> This is indeed https://github.com/OSGeo/gdal/issues/6839 which has 
> been fixed in GDAL 3.6.1.
>
> Even
>
> Le 09/01/2023 à 19:48, Kirk Waters - NOAA Federal via gdal-dev a écrit :
>> I think I've gotten this solved for my purposes now, but I'm 
>> reporting it here in case anyone else might run across issues using 
>> gdal in a conda environment. If I make a conda environment containing:
>> python
>> pdal=2.4.2
>> gdal
>> (which ends up with gdal version 3.5.1, pdal version 2.4.2), I get a 
>> weird behavior where
>> gdalwarp input.tif output.tif
>> will change the values in the raster as if it is converting from feet 
>> to meters. My example raster where I see this has georeferencing of 
>> EPSG:3521+6360 and is a 32-bit floating point DEM. My use case would 
>> have more arguments to gdalwarp, but I simplified to the minimum that 
>> showed the problem.
>>
>> If I change the environment package list for conda to not specify the 
>> pdal version, I'll get pdal version 2.4.3 and gdal version 3.6.2 and 
>> the raster will convert correctly.
>>
>> I did note that in a setup where it converts the values, I see this 
>> warning:
>> Warning 1: Unknown units=US survey foot
>>
>> Kirk Waters, PhD
>> NOAA Office for Coastal Management
>> Applied Sciences Program
>> ‪Phone: 843-284-6962‬ (New as of 2022)
>> coast.noaa.gov/digitalcoast <http://coast.noaa.gov/digitalcoast>
>>
>>
>>
>> _______________________________________________
>> gdal-dev mailing list
>> gdal-dev at lists.osgeo.org
>> https://lists.osgeo.org/mailman/listinfo/gdal-dev
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