Thomas Adams <[email protected]> writes: > All: > > I need to generate an ascii text file from a flow direction grid that > consists of (among a couple other things that don't really matter at this > point) for each pixel: > > (1) a unique integer identifier (1 -- N) for the pixel > (2) the integer identifier of the downstream pixel (assuming there is ONLY > one) > (3) the x,y location of the pixel (presumably, the lower left corner of the > pixel) > > has anyone already done something like this?
Well - I have done something similar, i.e. simulated water dispersal, in a package which is at [1]. The actual function is at [1]. After reading your mail again, it seems to be different, but it still might give you some ideas. Cheers, Rainer > > It's needed (along with some header information) as an input file for a > gridded distributed hydrologic model, identifying the flow connectivity > from pixel to pixel for streamflow routing purposes. I have already > formulated conceptually how to do this, but if someone has already done > such a thing, why reinvent the wheel?? > > Any help is appreciated. > > Regards, > Tom > _______________________________________________ > grass-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-user Footnotes: [1] https://github.com/rkrug/seedDisp [1] https://github.com/rkrug/seedDisp/blob/master/R/waterDispGRASS.R -- Rainer M. Krug email: Rainer<at>krugs<dot>de PGP: 0x0F52F982
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