三维城市建模是进行三维城市空间分析的基础,也是构建"数字城市"的重要手段。研究了利用ArcEngine组件对象模型构建三维城市模型的方法,将三维城市建模分为地上地物建模和地下管网建模,分别探讨了通过几何体拉伸、组合等操作构建地上地物模型和通过圆柱体拟合构建地下管线的方法,分析了利用3DMax软件构建三维管件模型的方法,通过实验验证了该方法的可行性,为城市规划部门辅助决策提供依据。

This paper used ArcEngine component object model to build 3D city model. The 3D city modeling was divided into the ground and underground pipe network modeling. The paper studied the method that the stretch through the geometry, composition and other operations on the ground to build the feature model, and used 3DS Max software to build 3D pipe model. This study can provide the basis for urban planning department aid decision making.