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Hello<br>
<br>
On 24/10/2010 19:29, ALT SHN wrote:<br>
<br>
Regarding your first question, (convert floating point raster to
integer) you can use:<br>
r.mapcalc "int_raster = int(fp_raster)<br>
<br>
<blockquote
cite="mid:AANLkTinEp9RzdOOiAq9N6jLD1NDGnX+6VMfqAV68S1t_@mail.gmail.com"
type="cite"><span class="Apple-style-span" style="font-family:
arial,sans-serif; font-size: 12.5px; border-collapse: collapse;">Hello
users,
<div><br>
</div>
<div>I really could use some hints regarding this problem.</div>
<div><br>
</div>
<div>I want to generate a new raster from the following
expression (using r.mapcalculator from QGIS GRASS plugin):</div>
<div><br>
</div>
<div>A*0.5+B*0.05+C*0.2+D*0.2+E*0.05<br clear="all">
<br>
</div>
<div>All rasters are integer16 geotiff anda have the same
resolution. I just get this message:</div>
<div><br>
</div>
<div><span style="font-weight: 600;">r.mapcalculator
amap=A@PERMANENT bmap=B@PERMANENT cmap=C@PERMANENT
dmap=D@PERMANENT emap=E@PERMANENT =
formula=A*0.5+B*0.05+C*0.2+D*0.2+E*0.05 outfile=Erosao</span>
</div>
</span></blockquote>
<br>
Here, I think you want to skip the '@' character.<br>
BTW, you can just run the above straight within r.mapcalc also:<br>
r.mapcalc "Erosao = <span class="Apple-style-span"
style="font-family: arial,sans-serif; font-size: 12.5px;
border-collapse: collapse;">A*0.5 + B*0.05 + C*0.2 + D*0.2 +
E*0.05"</span>
<blockquote
cite="mid:AANLkTinEp9RzdOOiAq9N6jLD1NDGnX+6VMfqAV68S1t_@mail.gmail.com"
type="cite"><span class="Apple-style-span" style="font-family:
arial,sans-serif; font-size: 12.5px; border-collapse: collapse;">
<div>
<p style="margin: 0px; text-indent: 0px;"><span>r.mapcalc
"Erosao" = "( " "A@PERMANENT" @PERMANENT" *0.5+ "
"B@PERMANENT" @PERMANENT" *0.05+ " "C@PERMANENT"
@PERMANENT" *0.2+ " "D@PERMANENT" @PERMANENT" *0.2+ "
"E@PERMANENT" @PERMANENT" *0.05)"</span></p>
<p style="margin: 0px; text-indent: 0px;"><span>Illegal
filename. Character not allowed.</span></p>
<p style="margin: 0px; text-indent: 0px;">
<span>Invalid map</span></p>
<p style="margin: 0px; text-indent: 0px;"><span>Parse error</span></p>
<p style="margin: 0px; text-indent: 0px;">
</p>
<p style="margin: 0px; text-indent: 0px;"><img
moz-do-not-send="true">Calculating Erosao. Try expert
mode.</p>
<p style="margin: 0px; text-indent: 0px;">
<span style="font-weight: 600;">Finished with error</span></p>
<p style="margin: 0px; text-indent: 0px;"><span
style="font-weight: 600;"><br>
</span></p>
<p style="margin: 0px; text-indent: 0px;">
I suspect something very basic is missing but I don´t know
what could it be!!</p>
<p style="margin: 0px; text-indent: 0px;"><span
style="font-weight: 600;"><br>
</span></p>
<p style="margin: 0px; text-indent: 0px;"><span
style="font-weight: 600;">Andre</span></p>
</div>
</span><br>
-- <br>
---------------------------------------------------------------<br>
Associação Leonel Trindade<br>
SOCIEDADE DE HISTÓRIA NATURAL<br>
<br>
Apartado 25 2564-909 Torres Vedras Portugal<br>
Sede e Biblioteca: rua Cavaleiros da Espora Dourada, 27A 2560
Torres Vedras<br>
<br>
Laboratório de Paleontologia e Paleoecologia: Polígono Industrial
do Alto do Ameal 2565-641 Ramalhal<br>
<a moz-do-not-send="true" href="http://alt-shn.blogspot.com">http://alt-shn.blogspot.com</a><br>
<a moz-do-not-send="true" href="http://www.alt-shn.org">www.alt-shn.org</a><br>
<br>
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</blockquote>
<br>
<br>
<pre class="moz-signature" cols="62">--
Micha Silver
<a class="moz-txt-link-freetext" href="http://www.surfaces.co.il/">http://www.surfaces.co.il/</a>
Arava Development Co. +972-52-3665918
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