BDTopo® Orne Tanks

The TOPO® BD version 2.1 contains a 3D vector description (structured into objects) of the elements of the territory and its infrastructures, of metric accuracy. It is delivered pre-symbolised in the most common proprietary formats on the market. The objects of the BDTopo® are structured into themes: — the road network and its address — the railway network — the energy transmission network — the hydrographic network — buildings — tree vegetation — orography — administrative structure — points of activity or interest (PAI) — the toponyms of the places mentioned. The 3D production process provides the altimetry of the objects, as well as the height of the buildings. The relief is described in the form of numerical terrain models (NTMs). In version 2.1, all objects have a unique identifier that is stable over time.TOPO® BD 2.1版本数据集包含以对象为结构化组织单元的领土要素与基础设施的三维矢量描述，具备公制精度。该数据集已预先完成符号化处理，可通过当前市场主流的专有格式交付。 BDTopo®的数据集对象按主题划分为以下类别： — 道路网络及其地址信息 — 铁路网络 — 能源传输网络 — 水文网络 — 建筑物 — 树木植被 — 地形地貌 — 行政架构 — 活动与兴趣点（Points of Activity or Interest，PAI） — 所述地点的地名（Toponyms） 该数据集的三维生产流程可输出各类对象的高程信息，同时包含建筑物的高度数据。地形以数字地形模型（Numerical Terrain Models，NTMs）的形式进行描述。在2.1版本中，所有对象均配备唯一且长期稳定的标识符。