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<p><font size="+1">I believe that the Geometric Attributes plugin
can do both jobs.</font></p>
<p><font size="+1"></font><br>
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<div class="moz-cite-prefix">On 10/12/21 3:49 AM, Allan López wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CABOeUQ-jaGXtfoZZsN=44nn8xTFVXixF_jgxwvndQ3J6_fJnFg@mail.gmail.com">
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<div class="gmail_default" style=""><font style="" size="4"
face="georgia, serif">Dear All,</font></div>
<div class="gmail_default" style=""><font size="4"
face="georgia, serif"><br>
</font></div>
<div class="gmail_default" style=""><font size="4"
face="georgia, serif">I need to automatically delineate the
middle line of a river basin/valley bounded by a Shp and
then to construct lines perpendicular to it spaced at will.
All this to get the </font></div>
<div class="gmail_default" style=""><font face="georgia, serif"><font
style="" size="4" color="#000000">Transverse topographic
symmetry
factor (T). </font><br>
</font></div>
<div class="gmail_default" style=""><font style="" size="4"
face="georgia, serif" color="#000000"><br>
</font></div>
<div class="gmail_default" style=""><font style="" size="4"
face="georgia, serif" color="#000000">My appreciation in
advance,</font></div>
<div class="gmail_default" style=""><font style="" size="4"
face="georgia, serif" color="#000000"><br>
</font></div>
<div class="gmail_default" style=""><font style="" size="4"
face="georgia, serif" color="#000000">Allan López</font></div>
<div class="gmail_default"
style="font-family:tahoma,sans-serif;font-size:large"><br>
</div>
</div>
<br>
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</blockquote>
<pre class="moz-signature" cols="72">--
Micha Silver
Ben Gurion Univ.
Sde Boker, Remote Sensing Lab
cell: +972-523-665918</pre>
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