Hi Alexandre, in case you did not yet find out: The POI are generated by mkgmap before the style rules are processed, so whatever you do in the polygon style file should not influence the generated POI. Gerd ________________________________ Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Alexandre de Menezes <afmlistas@terra.com.br> Gesendet: Sonntag, 12. Juni 2016 23:51:17 An: Development list for mkgmap Betreff: [mkgmap-dev] Removing building polygons from the map Hi everyone, The styles I am using add polygons to every building on the map. I never thought it was a problem, but recently someone did a mass import of all the buildings in my city and I started to get performance problems during GPS use. I want to avoid the polygons on the map, but I don't want to miss the POIs. I had partial success editing the polygon style file and removing this line: # building tag should be last #(building=* | amenity=*) & area!=no & amenity!=grave_yard [0x13 resolution 24] I believe this removes all buildings for which there's no other rule converting it to a POI. Can I remove all the other building polys too, since I am using the --add-pois-to-areas option, or I this will discard all the POIs? Thanks in advance, Alexandre de Menezes