This question already has an answer here:
I'm looking for a straightforward answer that actually works...not a 'duplicate question' flag. None of the other solutions posted in similar threads actually work...they all have dead-end answers and/or links. I've searched for hours and spent many more actually trying the methods I've found and none seem to work.
As for my question; I'm looking to generalize the polygons of a shapefile to reduce their resolution. Topology needs to be maintained for future geometry functions such as difference and union. There doesn't seem to be any way to preserve topology in QGIS...is there any other way? Any suggestions will help (as long as it doesn't involve ArcGIS).
Previous questions which don't have useful answers:
Simplifying Shapefile using ArcGIS Desktop or alternative? - topology is not considered
Generalizing polygon file while maintaining topology in QGIS? - no accepted answer
Also another questions of mine: