Aaron,<br><br>You can use a combination of gdalbuildvrt and gdal_translate.<br><br><span style="font-family:courier new,monospace">gdalbuildvrt both.vrt one_26911.tif two_26911.tif</span><br style="font-family:courier new,monospace">
<span style="font-family:courier new,monospace">gdal_translate both.vrt both.tif</span><br><br><div class="gmail_quote">On Sun, Jul 8, 2012 at 5:44 AM, aphunter <span dir="ltr"><<a href="mailto:a1hunter@ucsd.edu" target="_blank">a1hunter@ucsd.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi community!<br>
<br>
Here's my issue. I currently have two halves of California, one in<br>
EPSG:26910, and one in EPSG:26911. I successfully reprojected the 26910<br>
segment into zone 26911, and if I make the images small, to test,<br>
gdal_merge.py works properly. See below:<br>
<br>
<a href="http://osgeo-org.1560.n6.nabble.com/file/n4986729/screenshot.92.png" target="_blank">http://osgeo-org.1560.n6.nabble.com/file/n4986729/screenshot.92.png</a><br>
<br>
Unfortunately, the original images are too large to use gdal_merge.py,<br>
because I don't have enough memory on my system. They are each about 1.5T in<br>
size.<br>
<br>
When I use gdalwarp to combine the images, I get a horrible space in the<br>
middle. See below.<br>
<br>
<a href="http://osgeo-org.1560.n6.nabble.com/file/n4986729/screenshot.93.png" target="_blank">http://osgeo-org.1560.n6.nabble.com/file/n4986729/screenshot.93.png</a><br>
<br>
Can anybody help me either use gdalwarp properly to combine the two Tiff's,<br>
or get gdal_merge.py to work with Tiff's larger than the amount of memory I<br>
have on my system?<br>
<br>
Any help is greatly appreciated!<br>
<br>
Thanks in advance,<br>
Aaron<br>
<br>
--<br>
View this message in context: <a href="http://osgeo-org.1560.n6.nabble.com/gdal-merge-py-on-large-Tiff-s-gdalwarp-not-working-properly-tp4986729.html" target="_blank">http://osgeo-org.1560.n6.nabble.com/gdal-merge-py-on-large-Tiff-s-gdalwarp-not-working-properly-tp4986729.html</a><br>

Sent from the GDAL - Dev mailing list archive at Nabble.com.<br>
_______________________________________________<br>
gdal-dev mailing list<br>
<a href="mailto:gdal-dev@lists.osgeo.org">gdal-dev@lists.osgeo.org</a><br>
<a href="http://lists.osgeo.org/mailman/listinfo/gdal-dev" target="_blank">http://lists.osgeo.org/mailman/listinfo/gdal-dev</a><br>
</blockquote></div><br><br clear="all"><br>-- <br>Best regards,<br>Chaitanya kumar CH.<br><br>+91-9494447584<br>17.2416N 80.1426E<br>