[GRASS-dev] Re: r.surf.nnbathy + v.out.ascii?
hamish_nospam at yahoo.com
Mon Dec 18 00:31:10 CET 2006
> Hamish wrote:
> > I've added a new -r flag and fs= option to v.out.ascii in CVS which
> > may make it more appropriate than having to run v.to.rast first to
> > make a raster grid.
Maciej Sieczka wrote:
> But if the input is contour lines? Rasterising it and interpolating
> the raster seems the best way to go.
> Like I said - this would work only with vector points I guess. Please
> correct me if I'm wrong.
"v.out.ascii format=points" (the default) only outputs points of course;
I guess you could do "v.to.points -v" or "v.out.ascii format=standard"
+unix tools to get vector contour lines as xyz file.
But yes, for vector contour lines r.to.vect isn't so bad an option.
How do results compare to r.surf.contour*?
[*] problems with r.surf.contour: 0 in input data is treated as null,
integer output only.
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