Short version: I have a layer with 19483 features with plenty of topological errors and I would like to fix/review them as many as possible in an automated way but don't know how to do it. Additionally, since I will have to repeat the same process with many other layers with a similar amount of features and errors, I would like to create a model/script to save time.
Additionally, if I enable
Geometry Checker plugin I found 186 sliver polygons, 159 polygons with less than 1sqm. I am not sure whether I may have even more errors that I have not yet discovered.
I am pretty new to topology (in fact, it is the first time I have to deal with it), but from what I have read, I understand that there are three ways to deal with topology checks/fixes:
If I am not wrong, after reading
v.clean's documentation, it looks promising and I may solve most of the errors by using the
snap tool, as if I am not wrong, would snap/move vertexes that are very close when they should be snapped instead.
Another interesting feature is that I can integrate v.clean in a model, which will make my life much better since I will have to repeat the same process with many other layers with a similar amount of features and errors.
Unfortunately, I haven't succeeded in doing so. I created the following model but I might be doing something wrong since it creates more features instead of reducing its number.
Could you please tell me if I did something wrong or if there are better ways to deal with it?