<div>Hi stephen,</div>
<div> </div>
<div>May be this?</div>
<div>g.region rast=`g.mlist pat=srtm* sep=,`<br>r.series input=`g.mlist pat=srtm* sep=,` output=srtm_leste method=maximum</div>
<div> </div>
<div>of you can play with r.mapcalc to identify where is zero, and calculate the mean using [-1,-1][-1,0],.... [1,1] (not use [0,0]) to average (sum/8).</div>
<div> </div>
<div>good luck,</div>
<div> </div>
<div>miltinho<br><br></div>
<div class="gmail_quote">2009/8/21 Markus Neteler <span dir="ltr"><<a href="mailto:neteler@osgeo.org">neteler@osgeo.org</a>></span><br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div class="im">On Sat, Aug 22, 2009 at 12:33 AM, stephen sefick<<a href="mailto:ssefick@gmail.com">ssefick@gmail.com</a>> wrote:<br>> I have four maps that I would like to patch together. The problem is<br>> that on the boundary there are zero values after patching. I would<br>
> like to get rid of these values- interpolate the values based on the<br>> surrounding values. I can not firgure out how to do this. Any help<br>> is greatly appreciated<br><br></div>You could try this:<br><a href="http://grass.osgeo.org/grass64/manuals/html64_user/r.fillnulls.html" target="_blank">http://grass.osgeo.org/grass64/manuals/html64_user/r.fillnulls.html</a><br>
<br>Or r.neighbors with "mode" and a large moving window?<br><font color="#888888"><br>Markus<br></font>
<div>
<div></div>
<div class="h5">_______________________________________________<br>grass-user mailing list<br><a href="mailto:grass-user@lists.osgeo.org">grass-user@lists.osgeo.org</a><br><a href="http://lists.osgeo.org/mailman/listinfo/grass-user" target="_blank">http://lists.osgeo.org/mailman/listinfo/grass-user</a><br>
</div></div></blockquote></div><br>