Why do you want to add "width" to these? A GIS is not like a drawing or CAD program. There is no width to a vector line--including shapefiles. These lines do have geometry. As vector primitives (i.e., lines in the GIS), they are the connections between nodes. In GRASS, they also have topology (shapefiles have minimal topology). What 3D program is having trouble reading your data?
For display and export to a graphic program, you can set the displayed line width in the vector layer properties. You can create parallel lines a given distance apart with v.parallel. But that may not be helpful. Michael On Feb 26, 2012, at 10:00 AM, <[email protected]> wrote: > Date: Sat, 25 Feb 2012 15:13:28 -0200 > From: Daniel Victoria <[email protected]> > Subject: Re: [GRASS-user] Area/poly from lines > To: Moritz Lennert <[email protected]> > Cc: giannis Nj <[email protected]>, [email protected] > Message-ID: > <CA+irsJi_yS-LYVjyFuPFhhTQWjKGuQBuv=0exqr84h_w6j1...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > Maybe create a buffer around the lines? > > > 2012/2/21 Moritz Lennert <[email protected]>: >> On 21/02/12 11:46, giannis Nj wrote: >>> >>> I have a shapefile with lines only. Is it possible to add some area to >>> these lines? Like fatening the lines. The lines are the walls of a >>> castle but I can't use their exports ("file without geometry" gives as >>> an error some 3d programs), so I want to add some width to these lines. >>> Maybe adding polygons will help me too? >> >> >> One possible strategy might be to transform the lines to raster, thicken >> them and the retransform to vector as areas: >> >> v.to.rast >> r.grow >> r.to.vect feature=area >> >> Moritz >> _______________________________________________ >> grass-user mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/grass-user > _____________________ C. Michael Barton Visiting Scientist, Integrated Science Program National Center for Atmospheric Research & University Consortium for Atmospheric Research 303-497-2889 (voice) Director, Center for Social Dynamics & Complexity Professor of Anthropology, School of Human Evolution & Social Change Arizona State University www: http://www.public.asu.edu/~cmbarton, http://csdc.asu.edu _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
