<div dir="ltr"><span style="color:rgb(51,51,51);font-family:'normal arial',sans-serif;font-size:15.555556297302246px;line-height:20px">Margherita,</span><br><div><span style="color:rgb(51,51,51);font-family:'normal arial',sans-serif;font-size:15.555556297302246px;line-height:20px"><br>
</span></div><div><span style="color:rgb(51,51,51);font-family:'normal arial',sans-serif;font-size:15.555556297302246px;line-height:20px">Thank you for the suggestion; yes, the raster pixels are at the resolution of the raster map, so the r.to.vect conversion is creating vector polygons of the size of the individual raster pixels. If I can aggregate all of the raster pixels using r.area, then that should do what I want, I think.</span></div>
<div><span style="color:rgb(51,51,51);font-family:'normal arial',sans-serif;font-size:15.555556297302246px;line-height:20px"><br></span></div><div><span style="color:rgb(51,51,51);font-family:'normal arial',sans-serif;font-size:15.555556297302246px;line-height:20px">Cheers!</span></div>
<div><span style="color:rgb(51,51,51);font-family:'normal arial',sans-serif;font-size:15.555556297302246px;line-height:20px">Tom</span></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Jun 16, 2014 at 7:55 AM, Margherita Di Leo <span dir="ltr"><<a href="mailto:diregola@gmail.com" target="_blank">diregola@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi Thomas,<div class="gmail_extra"><br><br><div class="gmail_quote"><div class="">On Mon, Jun 16, 2014 at 1:47 PM, Thomas Adams <span dir="ltr"><<a href="mailto:tea3rd@gmail.com" target="_blank">tea3rd@gmail.com</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">All:<div><br></div><div>I have used r.lake to simulate flood inundation in an urban area -- the raster looks great! What I want to do (and have done) is to use r.to.vect, export the vector as a KML (which works), bring the simulated flood inundation map KMLs into GoogleEarth and create some animations from the simulated inundation, including showing rising flood levels inundating the city streets in 3D.</div>
<div><br></div><div>I can basically do all this, except that the r.to.vect conversion creates a gazillion boxes that are the size of the raster pixels -- I don't want all the tiny boxes. </div></div></blockquote><div>
<br></div></div><div>I'm not sure I understand correctly, but if the tiny pixels are there also in the raster map, might be useful r.area (addon) [1].</div><div>Hope this helps,</div><div><br></div><div>Cheers,</div>
<div>madi</div><div class="">
<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>What I want, is just a single (albeit, complex) polygon showing the flooded areas. v.dissolve will remove the boundaries of adjacent boxes if their cat or attributes are the same -- is this the way to go, namely, make all the cats or attribute values the same and then use v.dissolve?</div>
<div><br></div><div>Or, is there is there a better way to do what I'm attempting to do? That is, is it best to keep the individual small vector boxes for reasons I'm not considering?</div><div><br></div><div>Thank you,</div>
<div>Tom<span><font color="#888888"><br clear="all"><div><br></div><div><br></div></font></span></div></div></blockquote></div><div>[1] <a href="http://grass.osgeo.org/grass70/manuals/addons/r.area.html" target="_blank">http://grass.osgeo.org/grass70/manuals/addons/r.area.html</a> </div>
</div><br><br clear="all"><div><br></div>-- <br><div dir="ltr"><div><font color="#666666">Best regards,</font></div><div><font color="#666666"><br></font></div><div><font color="#666666">Dr. Margherita DI LEO </font></div>
<div><span style="color:rgb(102,102,102);font-family:arial;font-size:small">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>
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<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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</blockquote></div><br><br clear="all"><div><br></div>-- <br>Thomas E Adams, III<div>718 McBurney Drive</div><div>Lebanon, OH 45036</div><div><br></div><div>1 (513) 739-9512 (cell)</div><div><br></div>
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