[gdal-dev] Help request for data alignment issue

[jratike80]

Hi,

You do not give enough details so I could try to follow your steps. It is
odd that gdal_edit does not give the desired result. But have you tried to
use "GEOTIFF_KEYS_FLAVOR"="ESRI_PE" directly as a gdalwarp creation option?

-Jukka Rahkonen-


Jessica Evans wrote
> Hi
> 
> Wondering if anyone can help.
> 
> I am currently trying to use osgeo gdal.Warp to resample and reproject a
> GeoTiff (from EPSG:26916 NAD83 / UTM zone 16N to EPSG:102008 North America
> Albers), but also to get the data to align with other data that has been
> processed using ArcGIS.
> 
> I can get the data to align if I first translate the GeoTiff, setting
> "GEOTIFF_KEYS_FLAVOR"="ESRI_PE" creation option and create a new file,
> then run the warp operation on this new file.
> 
> What is the best way to force the alignment with ArcGIS data without
> creating this intermediate file? This will need to be run on files that
> are several tens of GBs in size, so I want to avoid making lots of copies
> of huge files.
> 
> I have tried going via a VRT, but the GEOTIFF_KEYS_FLAVOR option is only
> available for GeoTiffs. I've also tried using gdal_edit to manually edit
> the projection WKT in place and then pass that through gdalwarp, but this
> does not align the data. Editing the projection WKT with gdal_translate to
> create a new tiff for the warp operation seems to work just fine, but like
> I said I'd like to avoid creating new file because of their size.
> 
> I realise the most obvious answer is not to use ArcGIS, but that isn't an
> option for us at the moment.
> 
> Any help on this would be greatly appreciated.
> 
> Thanks in advance,
> Jessica
> 
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