<div dir="ltr"><div><div><div>Dear Micha,<br><br><br></div>thanks, really, I'll check it. I totally forget to check the addons collection...<br><br><br></div>regards<br></div>Robert<br><br></div><div class="gmail_extra"><br><div class="gmail_quote">2017-07-19 11:56 GMT+02:00 Micha Silver <span dir="ltr"><<a href="mailto:tsvibar@gmail.com" target="_blank">tsvibar@gmail.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
    
  
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    <div class="m_6009817724185010318moz-cite-prefix">On 07/19/2017 11:57 AM, Robert
      Kuszinger wrote:<br>
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                      Hello!<br>
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                    We have a linear feature of ~60km which is a future
                    path of a road having ~400m in size and being quite
                    curved.<br>
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                  I'd like to create a mask for raster operations that
                  fits this shape.<br>
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                Hull creates a convex shape which is hice but still have
                many "empty" space involved. This is sparse lidar data,
                anyway.<br>
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              Is there a techique to create such a raster mask/map?<br>
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            Pure rasterization won't work since it has holes (see also
            vectorized coverage at 10m resolution, zoomed into a "hole".<br>
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          <div>I'd need something like a <u><b>"concave hull"</b></u>
            function :)<br>
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    Hope about the addon:<br>
    <a class="m_6009817724185010318moz-txt-link-freetext" href="https://grasswiki.osgeo.org/wiki/AddOns/GRASS7/vector#v.concave.hull" target="_blank">https://grasswiki.osgeo.org/<wbr>wiki/AddOns/GRASS7/vector#v.<wbr>concave.hull</a><br>
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          thanks<br>
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        Robert<br>
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        <img src="cid:part1.6916E09D.A5922F31@gmail.com" alt="Szövegközi
          kép 3" height="324" width="534"><img src="cid:part2.62ECED1B.826AA3C4@gmail.com" alt="Szövegközi
          kép 2" height="196" width="534"><br>
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      <pre>______________________________<wbr>_________________
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    <pre class="m_6009817724185010318moz-signature" cols="72">-- 
Micha Silver
cell: +972-523-665918</pre>
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