[gdal-dev] Python create BigTIFF image

Javier Jimenez Shaw j1 at jimenezshaw.com
Tue Apr 20 12:41:44 PDT 2021


I don't think so. Bigtiff is a creation option, that defines the format of
the file.

ni hao <ni_hao88 at hotmail.com> schrieb am Di., 20. Apr. 2021, 21:37:

> Even,
>
> Thank you for your reply.
> You are right: ds = gdal.GetDriverByName('GTiff').Create( ) is under 4GB.
> It was the next command pushes GTiff over 4GB:
>   ds.BuildOverviews('AVERAGE_MAGPHASE', [2,4,8,16])
>
> Is there a way to specify BIGTIFF in ds.BuildOverviews() ?
>
> ------------------------------
> *From:* Even Rouault <even.rouault at spatialys.com>
> *Sent:* April 20, 2021 3:56 PM
> *To:* ni hao <ni_hao88 at hotmail.com>; gdal-dev at lists.osgeo.org <
> gdal-dev at lists.osgeo.org>
> *Subject:* Re: [gdal-dev] Python create BigTIFF image
>
>
>
> Le 20/04/2021 à 20:53, ni hao a écrit :
>
> Hi list,
>
> I use Python to create GeoTiff image, and I get the error because it
> exceeds 4GB.
> ds = gdal.GetDriverByName('GTiff').Create(output_magnitude, xsize, ysize,
> 1, gdal.GDT_Float32)
>
>    ERROR 1: TIFFReadDirectory:Failed to read directory at offset 4294957836
>    ERROR 1: TIFFWriteDirectoryTagData:Maximum TIFF file size exceeded. Use
> BIGTIFF=YES creation option.
>
> I need to turn on *BIGTIFF=YES*
> https://gdal.org/drivers/raster/gtiff.html
>
> But I don't do know how. I tried:
> ds = gdal.GetDriverByName('GTiff').Create(output_magnitude, xsize, ysize,
> 1, gdal.GDT_Float32, BIGTIFF=YES)
>
> ds = gdal.GetDriverByName('GTiff').Create(output_magnitude, xsize, ysize,
> 1, gdal.GDT_Float32, options=['BIGTIFF=YES'])
>
> But as you didn't specify compression, it should have done that
> automatically. Can you indicate the exact values of xsize and ysize you use
> ?
>
>
> but it didn't work.
>
>
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