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<body dir="auto">Dear Aylin,<br><br>Please post such questions to the grass-user mailing list [1], or on the relevant stack exchange forum, not privately to developers.<br><br>You can look at <a href="https://grass.osgeo.org/grass78/manuals/addons/r.roughness.vector.html">https://grass.osgeo.org/grass78/manuals/addons/r.roughness.vector.html</a> to see if this corresponds to what you want. Otherwise you could probably roll your own formula with r.mapcalc, possibly combined with r.neighbors.<br><br>Moritz<br><br><div class="gmail_quote">Am 6. Februar 2021 19:03:29 MEZ schrieb "aylin çiftci" <aylin_ciftci@hotmail.com>:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
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<blockquote type="cite"><span>Hi from Turkey,,</span><br>
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<blockquote type="cite"><span>İ am geologist, study morphotectonic and paleoseismology,
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<blockquote type="cite"><span>İ research grass gis for moprhotectonic analysis,</span><br>
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<blockquote type="cite"><span>İ need surface roughness analysis on grass gis, do you help me for this analysis,, a video or your researchs</span><br>
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<blockquote type="cite"><span>Thanks for publications</span><br>
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<blockquote type="cite"><span>Best regards </span><br>
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<blockquote type="cite"><span>Aylin</span><br>
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<blockquote type="cite"><span>iPhone’umdan gönderildi</span><br>
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