[GRASS-user] Creating vector lines from vector or raster points

[Lee Eddington]

I'd like to create vector lines from vector or raster point data.  I have
rasters of x and y wind components and have used r.mapcalc to compute the x
and y values of the original raster grid points and the x and y values for
displacements points due to the wind speed and direction.  I'd like to take
these x and y location values in these rasters and create vector lines that
connect the original x,y grid points to the displacement points.  I can
create vector points with these values at the gird points using r.to.vect,
but not sure how to create new vector lines with the info.

Thanks,
Lee
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