Answers to: overlapping polygons - ?<p>I am new here, so please bear with me: I am trying to fix a series of buildings that have somehow become "members" of a landuse multipolygon (making for strange rendering in some circumstances) - I would like to extract them as independant elements. Yet should I do so, if I understand correctly, I cannot just place the building over the land-use multipolygon, I must cut a hole in it the same shape of the building, then place the building over the hole - is this correct? Or is there a simpler solution?</p> <p>Thanks in advance,</p> <p>ThePromenader.</p>enTue, 12 Apr 2011 19:57:29 +0100Answer by petschge<p>In general you shouldn't simply place objects "over" larger objects if they replace larger object. So you create a small <code>landuse=industrial</code> area on top of a large town with <code>landuse=residential</code> but use the multipolygon hole-with-fill methode you mentioned. Buildings however often don't really displace the landuse. So you don't have to cut tons of little hole in the <code>landuse=residential</code> area to place little <code>building=yes</code> areas.</p>petschgeTue, 12 Apr 2011 19:57:29 +0100