I'm trying to delete duplicate nodes from a shapefile with QGIS, but after running the tool to delete it, nothing happens and shows the same errors.
I thought that maybe importing to postgis could be easier. What I want to do is:
Extract points from polygon (this is already done)
Delete the duplicate points
To finish, reshape the points to polygons without the duplicate points.
Anyone know if this methodology would be ok? I can do the first and second steps, but don't know if number 3 is possible, or if there is a better alternative.
Any clue or suggestion?