I’m new with GIS (coming from a CAD background) and using QGIS 2.0.1. I have a very detailed map of urban fabric in a UK region, to the detail of individual buildings.
I want to simplify that map by uniting regions where buildings are closer than 50m to each other into a single shape. Areas with more disperse urbanization should not be considered - polygons here should be deleted.
The result would be a land use map with polygons delimiting areas of dense building, rather than individual shapes for each unit. I suspect that the “Buffer” tool would do the job, if I choose 50m as buffer distance and combine the buffers into one region.
Before I set out to do it, am I thinking right about this? Or is there other way to do it accurately? Thanks!