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<div class="moz-cite-prefix">On 4/15/2015 12:17 AM, César Augusto
Ramírez Franco wrote:<br>
</div>
<blockquote
cite="mid:CAJDYei=aTF15Z=DX=Q0gh6KE6C2gSY8OzJGmOBbKoiTYLHYjDA@mail.gmail.com"
type="cite">
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<div class="gmail_default" style="color:rgb(39,78,19)">Hello
dear list<br>
<br>
</div>
<div class="gmail_default" style="color:rgb(39,78,19)">I'm using
r.stream.extract to obtain a stream network and further
processing of the vector map (as points using v.to.points) in
R to generate longitudinal stream profiles and calculate the
hypsometric curve, but I need to include the accumulation
value in my points DB.<br>
<br>
</div>
<div class="gmail_default" style="color:rgb(39,78,19)">The issue
I'm having is that if I use r.watershed AFTER v.to.points to
read the raster values into the points, they don't quite match
(i.e. points are not where the max accum values are). I assume
because I'm not calculating the accumulation map the same way
r.stream.extract is calculating it.<br>
<br>
</div>
<div class="gmail_default" style="color:rgb(39,78,19)">What I
want is to obtain the same accumulation map used by
r.stream.extract when none is specified, how can I do this? It
would be nice if r.stream.extract would let me save the
accumulation map it computes for further use.<br>
<br>
</div>
</div>
</blockquote>
<br>
Why not simplify your procedure to:<br>
r.watershed to create streams and accumulation raster.<br>
r.thin and r.to.rast to extract stream vectors from the r.watershed
output<br>
v.to.point to get points along the streams<br>
v.what.rast to upload accumulation values to the points along
streams <br>
<br>
<blockquote
cite="mid:CAJDYei=aTF15Z=DX=Q0gh6KE6C2gSY8OzJGmOBbKoiTYLHYjDA@mail.gmail.com"
type="cite">
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<div class="gmail_default" style="color:rgb(39,78,19)">Thanks in
advance.<br>
<br>
</div>
<div class="gmail_default" style="color:rgb(39,78,19)">PS: I'm
using Grass 6.4.3 on Ubuntu 14.04.<br>
</div>
<div class="gmail_default" style="color:rgb(39,78,19)"><br>
</div>
-- <br>
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<div style="text-align:right"><b style="color:rgb(39,78,19)">César
Augusto Ramírez Franco</b></div>
<font color="#274e13">
<div style="text-align:right">Laboratorio de Sistemas
Complejos Naturales</div>
<span
style="font-family:Arial;vertical-align:baseline;white-space:pre-wrap">
<div style="text-align:right">Escuela de Geociencias</div>
</span></font>
<div>
<div style="text-align:right"><span
style="white-space:pre-wrap;font-family:Arial;color:rgb(39,78,19)">Facultad
de Ciencias</span></div>
<font color="#274e13">
<div style="text-align:right">Universidad Nacional de
Colombia - Sede Medellín</div>
</font></div>
<font color="#274e13">
<div style="text-align:right">Teléfono: (57-4) 430 9369 -<font
face="arial, helvetica, sans-serif"> 300 459 6085<br>
</font></div>
</font></div>
</div>
</div>
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