I'm working in QGIS 2.18 but I can work with QGIS 3 or ArcMap 10.2.
I have a multipoint layer providing from a lasDataset where I've isolated the buildings.
I want to create a polygon layer where every building or group of buildings are individual polygons. The problem is I can't use any attribute to group them because I don't have any. Concave Hull only creates one polygon. So I have to group them by other way. by distance? How can I do it?