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On 06/08/2010 05:24 PM, Sandile Gumede wrote:
<blockquote
cite="mid:AANLkTilp9llR2jiKxQXBuI49HAX-y3nkP0nY7fzmIY3x@mail.gmail.com"
type="cite">Hi,<br>
<br>
After running <b style="color: rgb(255, 0, 0);">v.rast.stats
vect=catchments rast=rainfall colprefix=precip</b>, I ran <b
style="color: rgb(255, 0, 0);"><a moz-do-not-send="true"
href="http://v.info">v.info</a> -c catchments</b> and I got 9 new
columns:<br>
precip_min, precip_max, precip_ran, precip_mean, precip_std,
precip_var, precip_cf_, precip_sum,.....,precip_per.<br>
</blockquote>
<br>
<blockquote
cite="mid:AANLkTilp9llR2jiKxQXBuI49HAX-y3nkP0nY7fzmIY3x@mail.gmail.com"
type="cite"><br>
How do I then be able to see how much rain has fallen in each
catchment(polygon), and which direction is the water flowing? <br
clear="all">
</blockquote>
v.db.select catchments column=precip_sum<br>
<br>
If you display the stream network over the catchments, and use the
"display=shape,dir" option to d.vect then you'll see small arrows
along the streams indicating direction of flow.<br>
<br>
<br>
<blockquote
cite="mid:AANLkTilp9llR2jiKxQXBuI49HAX-y3nkP0nY7fzmIY3x@mail.gmail.com"
type="cite"><br>
-- <br>
Kind Regards<br>
TS Gumede<br>
CSIR, Meraka Institute<br>
072 258 1650<br>
<br>
<br>
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</blockquote>
<br>
<br>
<pre class="moz-signature" cols="72">--
Micha Silver
Arava Development Co. +972-52-3665918
<a class="moz-txt-link-freetext" href="http://surfaces.co.il">http://surfaces.co.il</a>
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