Micha, I followed your instructions with the following results: ---- Import data from 2 shapefiles, Contour (layer 1)and Track (layer 2): (no problems reported) v.in.ogr dsn=/home/george/GRASSDATA/ output=testvectmap min_area=0.0001 snap=-1 ---- Display vector map: (no problems, map displayes correctly) d.vect [EMAIL PROTECTED] color=0:0:0 lcolor=0:0:0 fcolor=170:170:170 display=shape type=point,line,boundary,area icon=basic/circle size=5 layer=-1 lsize=8 xref=left yref=center llayer=1 ---- Convert vector to raster and thin: (no problems reported) v.to.rast [EMAIL PROTECTED] output=testrastmap use=attr type=point,line,area layer=1 column=ELEVATION value=1 rows=100000 r.thin [EMAIL PROTECTED] output=thinrastmap iterations=200 ---- Display raster map (PROBLEM:only displays large, brightly coloured rectangles, no contours d.rast [EMAIL PROTECTED] -o ---- At this point I stopped as I got the impression something was already wrong but could not work out what. Also, should I not rasterize the track data as well? Any help would be appreciated. If you require the source shapefiles I have no problems sending them to you.
Micha Silver wrote: > > > Yes. > I think you should be looking at converting the shapefile contour lines > to a raster.... > > v.in.org to import the contour lines and tracks into grass > v.to.rast and r.thin to convert the contour lines to a raster map. > r.surf.contour to create an elevation surface from the rasterized > contours > r.profile to get the elevations along the tracks. > > Post back with specific questions if you hit a snag. > > Regards, > Micha > > ___________________________________________ > grass-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-user > > -- View this message in context: http://www.nabble.com/Elevation-profile-from-intersecting-shapefiles%E2%80%8F-tp20744104p20803902.html Sent from the Grass - Users mailing list archive at Nabble.com. _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
