I want to add calculated data to vector file. for example, I have vector file (sample_overlay).
v.report map=sample_overlay option=length cat|a_cat|a_HIGHT|b_cat|b_row|b_col|length 1|11|L|1473|30|23|1|21.3047451513242 2|12|H|1829|37|29|2|19.9524518420696 I want to add this length data to sample_overlay. So, I tried to add new colum to sample_overlay. v.db.addcol sample_overlay columns="length double precision" How to add this length data to new colum of sample_overlay? Shimada _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user