Carlos "Guâno" Grohmann wrote: > This is almost what I need. I need the results to be in range 0-360, > from North. So I can get a rose diagram, with petals weighted > according to azimuth frequency or to azimuth lenght, like the > attachment.
I've just remember PROJ.4's geod [1]. Example: $ echo "50N 19E 51N 20E" | geod -I +ellps=WGS84 +units=m 32d8'43.417" -147d4'58.6" 131935.963 The 1st 2 numbers are azimuth from the 1st to 2nd point and back, respectively, 3rd is the distance between them. [1]http://proj.maptools.org/man_geod.html Maciek _______________________________________________ grassuser mailing list grassuser@grass.itc.it http://grass.itc.it/mailman/listinfo/grassuser
