On Wed, Sep 2, 2020 at 1:27 PM Ken Mankoff <[email protected]> wrote: > > Hi GRASS list, > > I'd like to detect "narrow" features in GRASS. The attached screenshot shows > some basins (thick) and streams (thin) and some regions (hatched). These > regions are spurious because the basin is narrow here. I'd like to estimate > narrowness with an algorithm. > > I've looked into r.grow.distance r.distance and v.distance but haven't been > able to imagine a solution yet. Can anyone on this list suggest something?
Perhaps the compact measure of https://grass.osgeo.org/grass78/manuals/v.to.db.html --> compact: compactness of an area, calculated as compactness = perimeter / (2 * sqrt(PI * area)) could help here? Best Markus _______________________________________________ grass-user mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/grass-user
