| hello friends… I have been trying to convert a contour map to DEM map. First I opened Spearfish Location and imported the contour map(this map is of Powai city-Mumbai, India) using v.in.ogr and creating a new location by name IITBP and having set the -o option for overriding projection. But while doing that I got the following warning : driver: dbf database: $GISDBASE/$LOCATION_NAME/$MAPSET/dbf/ But the location got created successfully. After this I exited Spearfish location and entered IITBP location. I just saw the region settings by g.region -m and found: n=19.1431633152778 s=19.1237958119444 w=72.9004772163889 e=72.9195980877778 nsres=107.19300143 ewres=100.58320921 rows=20 cols=20 cells=400 After this I plotted the contour map which got displayed properly on the display window.(According to me importing the map was correct because it got displayed properly). Now inorder to use “r.surf.contour” I had to first convert it to raster map using “v.to.rast”. After running v.to.rast I got the resulting raster map to be faded(may be because of the resolution).Therefore I changed the Grid resolution of 2d to “0.00001” using the g.region command and re-run the v.to.rast command. Now when I plotted this raster file it was displayed on monitor perfectly. Now keeping the same resolution but zooming a small portion of the raster map (raster contour map) I ran the command “r.surf.contour”. This command executed successfully and the raster map is visible in the monitor. But when i try to view this map using NVIZ it gives error saying: “”““loading failed””" I am new to GRASS somebody please help me to solve this problem. Thanks in advance… |
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