My current topographic vector data file has a column name for the elevation data, ContourEle. Reading the v.to.rast page there is a use parameter (with 'z' for elevation) and an attribute_column parmater. Because the vector map's database table does not have a column named 'z', but the one named 'CountourEle' I put both parameters on the command line.
grass told me that I cannot have both, and that using the named elevation column was not allowed. So I put 'use=z' in the command and the conversion worked. How did v.to.rast know that the column named 'ContourEle' was the z value? Should the manual page explain that the use and attribute_column cannot be used together for elevation? And, when the attribute_column would be appropriate? Regards, Rich _______________________________________________ grass-user mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/grass-user
