IndoorGML is an OGC Standard. Copyright (c) 2014,2015,2016 Open Geospatial Consortium. To obtain additional rights of use, visit http://www.opengeospatial.org/legal/. NavigableSpace Denote general indoor space such as rooms, terraces, lobbies, etc. Denote the space which is purposed to tranfer between spaces. AnchorSpace represents a special opening space that provides connection between an indoor space and an outdoor space. It refers to Entrance Doors. ConnetionSpace represents an opening space that provides passages between two indoor spaces TransitionSpace represents a real world space that provides passage between two indoor spaces Route NavigableBoundary TransferBoundary ConnectionBoundary AnchorBoundary RouteSegment Route Node