【摘要】 本文在对已有的 3维 (3 D)城市模型进行分析的基础上 ,着重探讨了建筑物模型的构造方法 ,提出了一种分层组合模型方法构造建筑物模型 ,以及在此模型基础上的动态显示、空间分析和交互操作等功能 ,并开发了一个应用系统 (3 DTOOL)对 3 D城市模型中的地形和建筑物进行整体 3维动态显示和操作。最后利用约 4km2试验区对本文提出的模型和开发系统进行了全面的实验研究更多还原

【Abstract】 After an analysis of existing 3D urban model, the method for building modeling is discussed and a layer combined model is presented for building modeling. Depend on this model, the algorithm of dynamic display, spatial analysis and interactive operation are developed. And, application system (3DTOOL) for 3D urban modeling is developed which includes 3D visualization and operation about topography and buildings. Finally, a test area about 4 km 2 is used to create 3D urban model through 3DTOOL system.更多还原