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<div class="moz-cite-prefix">On 11/30/2013 11:21 AM, anna zanchetta
wrote:<br>
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<div>Hi everybody,</div>
<div><br>
</div>
<div>probably an old and known question:</div>
<div>is there a way in Grass to cut rasters by a polygon (i.e.
vector)?</div>
<div><br>
</div>
<div>This is possible in Qgis, but not for multiple images (as
Landsat bands for example),</div>
<div>while in Grass I could do it on a series of images with
r.mapcalc, masking one raster by another one.</div>
<div>It would be comfortable, anyway, to use a polygon
sometimes, especially in case of not-rectangular shapes.</div>
<div><br>
</div>
<div>Does anyone have a hint?</div>
<div><br>
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<br>
The gdal uitlity "gdalwarp" has a -cutline option to clip a raster
by a polygon. Maybe that will help. Not directly in GRASS, but it's
easy to script and use within a GRASS session.<br>
<br>
<br>
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<div>ciao!</div>
<div><br>
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<div>Anna</div>
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<pre class="moz-signature" cols="72">--
Micha Silver
GIS Consultant, Arava Development Co.
<a class="moz-txt-link-freetext" href="http://www.surfaces.co.il">http://www.surfaces.co.il</a></pre>
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