[gdal-dev] gdal_merge.py on large Tiff's. gdalwarp not working properly.

Chaitanya kumar CH chaitanya.ch at gmail.com
Sat Jul 7 20:45:08 PDT 2012


You can use a combination of gdalbuildvrt and gdal_translate.

gdalbuildvrt both.vrt one_26911.tif two_26911.tif
gdal_translate both.vrt both.tif

On Sun, Jul 8, 2012 at 5:44 AM, aphunter <a1hunter at ucsd.edu> wrote:

> Hi community!
> Here's my issue. I currently have two halves of California, one in
> EPSG:26910, and one in EPSG:26911. I successfully reprojected the 26910
> segment into zone 26911, and if I make the images small, to test,
> gdal_merge.py works properly. See below:
> http://osgeo-org.1560.n6.nabble.com/file/n4986729/screenshot.92.png
> Unfortunately, the original images are too large to use gdal_merge.py,
> because I don't have enough memory on my system. They are each about 1.5T
> in
> size.
> When I use gdalwarp to combine the images, I get a horrible space in the
> middle. See below.
> http://osgeo-org.1560.n6.nabble.com/file/n4986729/screenshot.93.png
> Can anybody help me either use gdalwarp properly to combine the two Tiff's,
> or get gdal_merge.py to work with Tiff's larger than the amount of memory I
> have on my system?
> Any help is greatly appreciated!
> Thanks in advance,
> Aaron
> --
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Best regards,
Chaitanya kumar CH.

17.2416N 80.1426E
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