<div>Margherita,</div>
<div> </div>
<div>Check with g.region -p and see how many 100x100 pixels you have.</div>
<div>May be it is very small for your threshold.</div>
<div> </div>
<div>best</div>
<div> </div>
<div>milton<br></div>
<div class="gmail_quote">2010/1/25 Margherita Di Leo <span dir="ltr"><<a href="mailto:diregola@gmail.com">diregola@gmail.com</a>></span><br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">Hi list!<br><br>I often used r.watershed without problems, but today i had a very strange one. Please can anyone verify that?<br>
I used Spearfish mapset, map: elevation.10m:<br><br>g.region res=100<br>r.watershed elevation=elevation.10m@PERMANENT threshold=100 accumulation=acc_10 drainage=dir_10 stream=str_10 convergence=5 memory=300<br><br>The stream map has many streams with 0 value.<br>
The problem is only with res=100.<br>Does r.watershed fail?<br><br>Thank you<br><br>-- <br>Eng. Margherita Di Leo<br>Ph.D. Candidate<br>Methods and Technologies for Environmental Monitoring<br>Department of Environmental Engineering and Physics (DIFA)<br>
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