<div>Hi Relpers,</div>
<div> </div>
<div>In fact I really need that each pixel be a polygon. I know that the</div>
<div>number of polygons will be very large. But it is part of a research</div>
<div>on my lab, to see how different variables and scales can help to</div>
<div>explain some patterns that occurs on our region of interest.</div>
<div>The example of tempetarute at 30x30 m resolution is just</div>
<div>the highest fine scale we are analyzing.</div>
<div> </div>
<div>When I run the raster to vector on arcgis it takes about</div>
<div>5 minutes, for my 2400x2400 image. But I would like</div>
<div>to turn the solution as general as possible because I </div>
<div>need run it at varying scales and for a large set of variables.</div>
<div> </div>
<div>Thanks for your time.</div>
<div> </div>
<div>cheers</div>
<div> </div>
<div>milton<br><br></div>
<div class="gmail_quote">2009/6/11 Nikos Alexandris <span dir="ltr"><<a href="mailto:nikos.alexandris@felis.uni-freiburg.de">nikos.alexandris@felis.uni-freiburg.de</a>></span><br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">(Kind of Off-Topic)<br><br>Micha Silver:<br>
<div class="im">> As a further exercise, I took a small region of 540000 cells with<br>> floating point values, and using the "feature=area" option to r.to.vect<br>> I created a vector map of polygons.<br>
<br></div>Hi Micha! I am curious about the 540.000 cells. This is _not_ really<br>small, is it?<br>
<div class="im"><br>> It produced over 360000 polygons.<br><br></div>I wonder how long it took? For me a r.to.vect feature=point process with<br>~350.000 cells took more than 24 hours!<br><font color="#888888"><br>Nikos<br>
<br></font></blockquote></div><br>