Changes

* a terrain intersection line is an '''attribute''' of the '''building or building part''';

* a terrain intersection line is an '''attribute''' of the '''building or building part''';

* outer building installations (''bldg:BuildingInstallation'') are '''taken into account''' from a terrain intersection line (see '''Figure A''');

* outer building installations (''bldg:BuildingInstallation'') are '''taken into account''' from a terrain intersection line (see '''Figure A''');

* a terrain intersection line as a product of the intersection of buildings in the respective LoD and the most accurate available terrain, ist im CityGML als Attribut des Gebäudes oder des Gebäudeteils definiert und hat keinen Bezug zu dem in einer Visualisierung verwendeten Gelände und dessen Auflösung und Genauigkeit.  

* a terrain intersection line is a result of the intersection of buildings in the respective LoD and the most accurate available terrain. In CityGML it has no relation to the terrain used in a visualization and its resolution and accuracy.  

* a terrain intersection line may consist of '''several independent parts''';

* a terrain intersection line may consist of '''several independent parts''';

* a terrain intersection line '''need not be closed''';

* a terrain intersection line '''need not be closed''';