OK, this is strange. I am using v.sample to determine whether a point falls inside or outside a simple raster (only two colors - white and brown).
The vector points have only two columns in the table: cat, and an integer value (327670) - the aim is that the result will be 0 where the point is on the white background, and some other number when the vector is on the brown. The vector is connected to a MySQL table, and the category numbers are unique (I made sure of this). The error is: DBMI-MySQL driver error: Cannot execute: insert into ACT_900 values ( 3, 3.000000e+00, 3.276700e+04, 3.276400e+04 ) Duplicate entry '3' for key 'ACT_900_cat' (v.sample has worked okay on other maps and tables so I'm completely stumped!). Richard Chirgwin _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
