Modify highest face

[vico44]

I try to put the highest faces of a selection of groups in a specific layer. It works well if the group is on the origin, but can't find the way to make it work if the group is not on the origin.

	model = Sketchup.active_model
	sel = model.selection
	bbox = Geom::BoundingBox.new
	sel.each {|grp| 
					bbox.add(grp.bounds)
					zgrp_max = bbox.max
					get_entities(grp).find_all{|e| is_kind(e,"Face") }.each{|fc2|
						pl2 = fc2.plane
						if fc2.normal.parallel?( vec3d(0,0,1) ) and ( zgrp_max.on_plane?(pl2))
				 			fc2.layer = "K-Masque"
				 			edges = fc2.edges
				 			edges.each {|edg| edg.layer = "K-Masque"}
						end					
			} }

[vico44]

Ok I find the way, it works with local_bounds

	model = Sketchup.active_model
	sel = model.selection
	bbox = Geom::BoundingBox.new
	sel.each {|grp| 
					bbox=grp.local_bounds
					get_entities(grp).find_all{|e| is_kind(e,"Face") }.each{|fc2|
						pl2 = fc2.plane
						if fc2.normal.parallel?( vec3d(0,0,1) ) and ( bbox.max.on_plane?(pl2))
				 			fc2.layer = "K-Masque"
				 			edges = fc2.edges
				 			edges.each {|edg| edg.layer = "K-Masque"}
						end					
			} }