Basic Registration Large-Scale Topography (BGT)

The Basic Registration Large Scale Topography (BGT) is a digital map of the Netherlands on which buildings, roads, watercourses, lands and railway lines are unambiguously documented. The map is 20 centimeters accurate and contains many details, as you see in reality. Think of trees, roads, buildings, in short: the establishment of the physical environment.大比例尺基础地形注册数据集（Basic Registration Large Scale Topography，BGT）是荷兰的数字地图产品，可对建筑物、道路、水道、陆地及铁路线路进行清晰无误的标注与记录。该地图平面位置精度可达20厘米，包含大量与现实场景高度一致的细节，诸如树木、道路、建筑等，简而言之，涵盖了实体物理环境的全部构成要素。