利用ArcGIS进行公路路线的三维建模

3D Modeling of Highway Alignment with ArcGIS

现行公路路线设计不能直观反映公路整体设计效果,难以对路线设计成果做出科学评价,提出一种利用ArcGIS进行公路路线三维建模的方法:在ArcGIS下建立线性参考系,将路线桩号与其M值相关联;在此基础上,建立路线的高程模型,并将高程值与其Z值相关联;最后,利用ArcObjects的相关接口、方法,建立起适合公路特点的路线三维模型MultiPatch.该方法简便易行,所建立的公路路线三维模型效果逼真.

To solve the problem that global design effect of highway cannot be directly reflected in existing highway route design and a scientific evaluation of the route design results is difficult to make, the method of highway route 3D modeling with ArcGIS is put forward. First, by establishing linear reference systems in Arc- GIS, route stakes and their M values are related. On this basis, the route elevation model is built, and elevations associated with their Z values. Finally, the 3D model MultiPatch of a route is established with relevant interfaces and methods of ArcObjects. This approach is simple and feasible, and the 3D model established has verisimilar effect.