<div dir="ltr"><br><div class="gmail_extra"><div class="gmail_quote">On Thu, Dec 19, 2013 at 9:46 AM, Newcomb, Doug <span dir="ltr"><<a href="mailto:doug_newcomb@fws.gov" target="_blank">doug_newcomb@fws.gov</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr">I thought r.external was a read-only link.<div>
<br></div></div></blockquote><div>r.external manual does not say anything about it. However, the example there is read-only. And I'm not sure in which category (r/rw) r.null is.</div><div><br></div><div><a href="http://grass.osgeo.org/grass70/manuals/r.external.html">http://grass.osgeo.org/grass70/manuals/r.external.html</a><br>
</div><div><a href="http://grass.osgeo.org/grass70/manuals/r.null.html">http://grass.osgeo.org/grass70/manuals/r.null.html</a><br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div dir="ltr"><div></div><div>Doug</div></div><div class="gmail_extra"><br><br><div class="gmail_quote"><div><div class="h5">On Thu, Dec 19, 2013 at 3:35 AM, Margherita Di Leo <span dir="ltr"><<a href="mailto:dileomargherita@gmail.com" target="_blank">dileomargherita@gmail.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div><div class="h5"><div dir="ltr"><div><div>
<div><div>Hi All,<br><br></div>Is it an expected behaviour that r.null doesn't affect vrt raster linked via r.external?<br>
</div>Tested on forest map 2000 available for download from <a href="http://forest.jrc.ec.europa.eu/download/data/forest-data-download/" target="_blank">http://forest.jrc.ec.europa.eu/download/data/forest-data-download/</a><br>
</div>I build the mosaic with gdalbuildvrt and then use r.external<br></div>then I want to set to null the values 0,2,3:<br>r.null mosaic setnull=0-2-3<br><div><div>this command doesn't have any effect on the map.<br>
<br></div><div>thanks<br></div><div><br clear="all"><div><div><div>madi<br><br></div><div>-- <br><div dir="ltr"><span style="border-collapse:separate;font-family:'Times New Roman';border-spacing:0px;font-size:medium"><span style="font-family:arial;font-size:small"><div>
<font color="#666666">Best regards,<br><br>Dr. Margherita DI LEO </font></div><div><span style="color:rgb(102,102,102)">Scientific / technical project officer</span><br></div><div><font color="#666666"><br></font></div>
<div><font color="#666666">European Commission - DG JRC </font></div><div><font color="#666666">Institute for Environment and Sustainability (IES)</font></div><div><font color="#666666">Via Fermi, 2749</font></div><div><font color="#666666">I-21027 Ispra (VA) - Italy - TP 261</font></div>
<div><font color="#666666"> </font></div><div><font color="#666666">Tel. <a href="tel:%2B39%200332%2078%203600" value="+390332783600" target="_blank">+39 0332 78 3600</a> </font></div><div><font color="#666666"><a href="mailto:margherita.di-leo@jrc.ec.europa.eu" target="_blank">margherita.di-leo@jrc.ec.europa.eu</a></font></div>
<div><font color="#666666"><br></font></div><div><font color="#666666">Disclaimer: The views expressed are purely those of the writer and may not in any circumstance be regarded as stating an official position of the European Commission.</font></div>
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</div></div></div></div></div></div>
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<br clear="all"><div><br></div>-- <br><div>Doug Newcomb</div><div>
USFWS</div><div>Raleigh, NC</div><div><a href="tel:919-856-4520%20ext.%2014" value="+19198564520" target="_blank">919-856-4520 ext. 14</a> <a href="mailto:doug_newcomb@fws.gov" target="_blank">doug_newcomb@fws.gov</a></div>
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<div>The opinions I express are my own and are not representative of the official policy of the U.S.Fish and Wildlife Service or Dept. of the Interior. Life is too short for undocumented, proprietary data formats.</div>
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