DBGT10K 2020-09 Common Limit

It represents the municipal boundary as linear geometry. This class is always linked to one (in case it is a state limit) or two municipalities through a role. In this way it is possible to represent the municipal linear border between two municipalities with a single shared line. This solution allows effective management of changes to municipal boundaries as all operations can be performed on linear components while the area components can be obtained by automatic derivation.此类以线性几何形式表征市域边界。此类始终通过关联角色与一个（若为州界场景）或两个市域绑定。借此可通过单条共享线段，直接表示两个市域间的线性边界。该方案可实现市域边界变更的高效管理，所有操作均可在线性要素层面执行，而面状要素可通过自动推导生成。