Hi Mariana, One of the polygons you are using for intersection has a bad geometry. Try to use Topolygychecker http://www.youtube.com/watch?v=huhkTZkoKC8
Then delete the bad polygon. Regards Lene Fischer Associate Professor Department of Geosciences and Natural Resource Management University of Copenhagen MOB +45 40115084 [email protected]<mailto:[email protected]> [SCIENCE_bomaerke_UK] Fra: [email protected] [mailto:[email protected]] På vegne af Mariana Buzzi Sendt: 17. juni 2014 15:32 Til: [email protected] Emne: [Qgis-user] Snnapping options Hi!!! I want to make a polygon, which should be attached to another that is coterminous. When setting options Snnapping options, and try to draw the polygon, the program tells me the following error: "The feature cannot be added because it's geometry collapsed due to intersection avoidance" What can I do?? Thanks so much!!!!!!! Kiss, Mariana
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