
<html><head></head><body><div style="color:#000; background-color:#fff; font-family:verdana, helvetica, sans-serif;font-size:13px">Hello,<br><br>I would like to know whether raster curvature analysis in GRASS is Gaussian<div dir="ltr" id="yui_3_16_0_ym19_1_1473755772427_14146">or Mean curvature analysis?<br><a id="yui_3_16_0_ym19_1_1473755772427_14633" href="https://en.wikipedia.org/wiki/Gaussian_curvature">https://en.wikipedia.org/wiki/Gaussian_curvature</a><br><a id="yui_3_16_0_ym19_1_1473755772427_14744" href="https://en.wikipedia.org/wiki/Mean_curvature">https://en.wikipedia.org/wiki/Mean_curvature</a><br><br><a id="yui_3_16_0_ym19_1_1473755772427_15100" class="edited-link-editor" href="https://grass.osgeo.org/grass72/manuals/r.slope.aspect.html">This GRASS 7.2 manuals page</a> mentions that raster curvature analysis can be conducted in direction of steepest slope and in the direction of the contour tangent, therefor distinguishing two curvature options: profile and tangential.<br id="yui_3_16_0_ym19_1_1473755772427_14447"><br id="yui_3_16_0_ym19_1_1473755772427_14448">Still are these two Gaussian or Mean curvatures?<br></div><div id="yui_3_16_0_ym19_1_1473755772427_15108"><br></div><div id="yui_3_16_0_ym19_1_1473755772427_13757">Thank you for the reply.<br><br>Kind regards,<br>Djordje Spasic<br></div></div></body></html>