I need to convert a shapefile (that stores data as grid points (lattices in arcinfo terminology), 150m x 150m for wind velocity). You can see the shapefile contents here: http://flic.kr/p/9eAZr3
Then I tried to generate a surface in grass as follow: 1. I converted the shapefile to csv with : ogr2ogr -f CSV output.csv input.shp -lco GEOMETRY=AS_XY The csv contents are like that: 105000|4422900|8.36855000 105150|4422900|7.85873000 105000|4422750|9.67642000 .......................................... ........................ ............ 2. Then, I used r.in.xyz to generate the surface. Unfortunately, the generated raster was again another grid of points (image: http://flic.kr/p/9exTT4) So, how can I generate a raster surface from a shapefile like that? Do I need to use v.surf.idw or is any faster way Do I need a data conversion or interpolation? Thank you, Leonidas! -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Shapefile-to-Surface-tp5977485p5977485.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
