Hi Jim, Although this does not solve you pipe issue (you might need to use pipe or fifo (run: help(pipe) in R for more info) : If you just want to create a map with one point you could also use “v.edit» in non interactive mode (I guess), meaning, create a map and add a point. Or you write your coordinates to a temporary file, which you can read in v.in.ascii
Cheers Stefan From: grass-user [mailto:grass-user-boun...@lists.osgeo.org] On Behalf Of Veronica Andreo Sent: 28. april 2016 19:38 To: James Maas (MED) <j.m...@uea.ac.uk> Cc: grass-user <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] rgrass7 syntax for passing a command Hello Jim, Maybe you should write to grass-stats mailing list, too. Perhaps someone there can provide useful insights/suggestions for your case Best, Vero 2016-04-28 12:53 GMT-03:00 Jim Maas <j.m...@uea.ac.uk<mailto:j.m...@uea.ac.uk>>: Using GRASS 7.0.3 on Ubuntu Linux, I'm attempting to recreate the example of r.stream.distance shown at https://grass.osgeo.org/grass70/manuals/addons/r.stream.distance.html by passing these comands to GRASS from within an R session. I can't figure out the correct syntax to pass this command to the system and also GRASS, any suggestions ? The original code for GRASS command line in the example is # Create outlet echo "636645,218835" | v.in.ascii -n input=- output=outlet separator="," I've tried lots of combinations of both system() and execGRASS() including this system(message ("327500.00,523896.55") | "v.in.ascii", input="-", output="outlet", separator=",", flags=c("n", "overwrite")) but have been unsuccessful. Any suggestions? Thanks, J -- Dr. Jim Maas Norwich Medical School _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org<mailto:grass-user@lists.osgeo.org> http://lists.osgeo.org/mailman/listinfo/grass-user
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