Dear List,
I have a road line map that I broke at the intersections with v.clean. The problem is that when I try to upload the coods of the starting point to the segments with v.to.db the program complains about repeated categories. So I deleted the categories and created new categories in the map but now the link with the table is broken. How can I create unique identifiers (cats) in a map without breaking the link with the table?
Thanks
Jonathan Aguero Valverde
Research Assistant and Ph.D. Candidate
Pennsylvania State University
The Pennsylvania Transportation Institute
201 Transportation Research Building
University Park, PA 16802