Hello, I would like to get the slope of a defined section like a part of a river or a road.
The only post dealing with such a idea was left unanswered: [GRASSLIST:7280] Hazard Assessment - http://thread.gmane.org/gmane.comp.gis.grass.user/8702 My idea is the following: 1) define a starting vector point and a end vector point of a stream or road section. 2) then run a module to calculate the slope along that section 3) add the slope to the attribute table of the stream/road vector While point 1 and 2 are quite clear to me I would ask you for hints on how to calulate the slope as lined out in point 2. What I am looking into would be a slope version of d.measure... To have an idea on what one could like to do with the results: * Get a first estimate (based on DEM resolution) on hydraulic gradients in rivers * assess the risk of certain roads in mountainious regions Thanks in advance for your help. Kind regards, Timmie _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
