dissolvegeometrypolygonqgisqgis-processing
Through a "dissolve" process in QGIS, I achieved some defective polygons generated after dissolve process that have some fails, like these in the screenshot:
Is there any automatic process I can make in QGIS to remove those lines inside the polygon and leave only the outer borders? I can manually delete using the "Node Tool", but I was looking for an automated solution.
The polygon seems to be closed, as it can be seen:
I would recommend these steps:
Nice geometric exercise:
Results shown in the picture below:
I would visit every point with distance greater than 3 deviations and delete ones that looks like artefact. Remaining point can be converted back to polygons, because they are ordered and store polygon ID. Alternative is manual editing, because automatic technique won't work for donuts.
For 'inside' needle use positive buffer in step 2).
I tested workflow below in ArcGis, see if you can find same tools in QGIS, which is very likely.
Best Answer
You can use the QGIS-Processing tool
Delete holesfor that.Just pass the polygon layer with holes, the algorithm will remove all inner rings (aka. holes) for each polygon automatically.