Polygons -> Larger Polygons based on Attribute

Discussion created by np48 on Feb 13, 2014
Latest reply on Feb 17, 2014 by np48
Hey guys,

i have the following problem: I have a set of buildings (either as a polygon, or if needed as centroid points) which I want to "sum up" in larger polygons. My buildings are classified in 8 different classes (as attribute), which should be used for calculating the larger polygons. Basically I would like to have a set of polygons, divided in 8 classes, which cover the whole urban area. So far, I havent found a solution which fits my case. Does anyone of you have an idea, how to do this?
Thanks in advance, greetings.