centralize creation of virtual vertices
centralize creation of virtual vertices

elbakai/openlayers,shevawen/openlayers,dracic/openlayers,v5analytics/openlayers,avinet/openlayers,avinet/openlayers,kartverket/openlayers,openlayers/ol2,altamiracorp/openlayers,Gnafu/openlayers,colllin/openlayers,wet-boew/openlayers,adh1365/openlayers,sanak/ol2,PetrDlouhy/openlayers,elbakai/openlayers,owenmead/openlayers,adh1365/openlayers,pvalsecc/openlayers,pgiraud/openlayers,openlayers/ol2,shevawen/openlayers,pgiraud/openlayers,PublicStuff/openlayers,sbrunner/openlayers,PublicStuff/openlayers,openlayers/ol2,owenmead/openlayers,v5analytics/openlayers,v5analytics/openlayers,ahocevar/ol2,PetrDlouhy/openlayers,PetrDlouhy/openlayers,PublicStuff/openlayers,owenmead/openlayers,pvalsecc/openlayers,Gnafu/openlayers,avinet/openlayers,georchestra/openlayers,altamiracorp/openlayers,Gnafu/openlayers,dracic/openlayers,shevawen/openlayers,avinet/openlayers,sbrunner/openlayers,openlayers/ol2,sanak/ol2,pgiraud/openlayers,kartverket/openlayers,wet-boew/openlayers,elbakai/openlayers,sbrunner/openlayers,sbrunner/openlayers,wet-boew/openlayers,dracic/openlayers,ahocevar/ol2,wet-boew/openlayers,sanak/ol2,elbakai/openlayers,PublicStuff/openlayers,pgiraud/openlayers,colllin/openlayers,altamiracorp/openlayers,altamiracorp/openlayers,shevawen/openlayers,kartverket/openlayers,kartverket/openlayers,sanak/ol2,ahocevar/ol2,adh1365/openlayers,georchestra/openlayers,georchestra/openlayers,pvalsecc/openlayers,pvalsecc/openlayers,owenmead/openlayers,adh1365/openlayers,Gnafu/openlayers,dracic/openlayers,v5analytics/openlayers,colllin/openlayers,colllin/openlayers,PetrDlouhy/openlayers