<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Fri, Apr 19, 2013 at 9:47 PM, ryagz <span dir="ltr"><<a href="mailto:raghavendra@vizexperts.com" target="_blank">raghavendra@vizexperts.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi,<br>
<br>
I have downloaded some raster data which has given me overview levels as<br>
different tiff files, how can i merge them into a single tiff file. so that<br>
when i load that file with gdal proper overviews are picked.<br></blockquote><div><br></div><div>If your files are named file.tif, file.tif.ovr, file.tif.ovr.ovr, etc I think that GDAL will automatically read the overviews. gdalinfo file.tif will show if GDAL reports the presence of the overviews. <br>
<br>A VRT could be used to combine the various files then gdal_translate that. gdal_translate with COPY_SRC_OVERVIEWS=YES could create a single tif with the overviews (more details, <a href="http://www.gdal.org/frmt_gtiff.html">http://www.gdal.org/frmt_gtiff.html</a>). I'm not sure if COPY_SRC_OVERVIEWS will work on external overviews. <br>
<br></div><div>Eli<br></div><div><br> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
Ryagz<br>
<br>
<br>
<br>
--<br>
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