On Fri, Oct 28, 2016 at 2:59 PM, Grabow, Damon M. <[email protected]> wrote: > > > A watershed polygon has 10 boundaries, 1 area, 1 centroid, and 1 island. > The data table always connects to the boundaries, showing associated > attributes of the 10 individual lines. How can a similar table/layer be > created that houses the data of the centroid and area?
First check with v.category option=report if the centroid has a category in any layer. If yes, and an attribute table for that layer does not exist (v.db.connect -p), create a table for that layer with v.db.addtable. If the centroid does not have a category in a separate layer, create one with v.category option=add type=centroid layer=X with X being a layer number not present in the output of v.category option=report Now create a table for layer X with v.db.addtable and you can upload area/centroid attributes. HTH, Markus M > > > > Damon Grabow > > NDSWC > > > _______________________________________________ > grass-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-user _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
