Thomas Adams escribió:
I have a collection of points that represent the centerline of a river. I need to output them in upstream to downstream order (or the reverse). A simple v.out.ascii does not do this because of the channel meanders. It's critical to get the x,y locations of these points in the correct order.
jctorres wrote:
Hello You can create a map of these points contining the elevation as attribute. Once you output this map you could sort points using the elevation values.
you can do this for instance using v.to.rast to convert the points to raster, them combine this map with elevation using r.mapcalc (assigning elevation to the points), and them output the map using r.out.xyz. To sort the points you can use any sort program or a spreadsheet.
Who will believe (me) that I was about to send this same idea? Thanks, Nikos _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
