Fig. 4From: CityGML Application Domain Extension (ADE): overview of developmentsExcerpt of the UML diagram of the Energy ADE, depicting the augmentation of CityGML Building with features not standardly available in CityGML. Source: Energy ADE v. 1.0 documentation (http://www. citygmlwiki.org/index.php/CityGML_Energy_ADE)Back to article page