Hi, Did you consider using: https://grass.osgeo.org/grass70/manuals/addons/r.stream.basins.html ?
Cheers Stefan -----Original Message----- From: grass-user [mailto:[email protected]] On Behalf Of Jim Maas Sent: 26. april 2016 14:28 To: [email protected] Subject: [GRASS-user] simple way to get Easting and Northing coordinates of stream outlet directly from r.watershed? I'm using GRASS 7.0.3 (text) on Ubuntu Linux, and running it either from a bash shell script or from an R file. I've worked out a workflow that does what I want, but it is very long and convoluted, so I'm wondering if there is a simple way to extract the Easting and Northing coordinates of the lowest point on the stream network, such that I can then use them as inputs for r.water.outlet? Here is my workflow, realise it is long 1. run r.watershed to get drainage, streams, and basin 2. run r.stream.order to calculate strahler order and get strahler raster map 3. use r.stats and some bash code to extract highest strahler number from the strahler map 4. use r.mapcalc .... not sure why, inherited this bit from someone! 5. use r.stats to get data from stream dem into a text file 6. use some bash and awk code to extract the Easting and Northing values of the lowest point in the text file created from the stream dem 7. use r.water.outlet to create new drainage map for the basin 8. use r.lfp to calculate longest flow path, also uses the Northing and Easting values of the outflow point So I guess what I'm looking for is a simpler way to get the Northing and Easting values of the lowest point, directly from r.watershed or something analogous. All suggestions most welcome. Thanks J -- Dr. Jim Maas University of East Anglia _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
