georges wrote > Hello, > > I would like to know whether raster curvature analysis in GRASS > is Gaussianor Mean curvature analysis? > https://en.wikipedia.org/wiki/Gaussian_curvature > https://en.wikipedia.org/wiki/Mean_curvature > > This GRASS 7.2 manuals page 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. > > Still are these two Gaussian or Mean curvatures? > > Thank you for the reply.
I can't tell you directly which algorithm is used. fortunately GRASS GIS is open source; so maybe have a look at the source code to check: r.slope.aspect: https://trac.osgeo.org/grass/browser/grass/trunk/raster/r.slope.aspect/main.c or r.resamp.rst https://trac.osgeo.org/grass/browser/grass/trunk/raster/r.resamp.rst/main.c HTH ----- best regards Helmut -- View this message in context: http://osgeo-org.1560.x6.nabble.com/GRASS-raster-curvature-analysis-type-tp5285498p5285523.html Sent from the Grass - Users mailing list archive at Nabble.com. _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
