jamaas wrote > 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
have a look at https://grasswiki.osgeo.org/wiki/R.basin#Preparation_for_multiple_basins.27_analysis maybe for some inspirations. ----- best regards Helmut -- View this message in context: http://osgeo-org.1560.x6.nabble.com/simple-way-to-get-Easting-and-Northing-coordinates-of-stream-outlet-directly-from-r-watershed-tp5262970p5262976.html Sent from the Grass - Users mailing list archive at Nabble.com. _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user