I need to build a 100m buffer around a categorized polygon layer using QGIS 3.2.
The layer has four classes and no holes. The difficulty here is, that the buffer needs to be split into the 4 categories at the edges of the original polygons. Hard to explain in words, so I drew a quick sketch:
It doesnt have to follow a specific rule and it can be a multistep solution as well.
How can this be done using QGIS 3.2? And is there a special term for single sided buffers like this?