A processing and scheduling method for vector rendering in global 3D GIS

Aiming at the problem that the efficiency of mass vector data rendering in global 3D GIS is low, this paper put forward a new way of processing and scheduling the data. The problem of crack phenomenon after the compression of public boundary in LOD model of vector data have been solved by the way based on the Douglas-Pecuker algorithm. In addition, we add viewpoint height factor, improving the efficiency of rendering and displaying vector data, which we can get proof in experiments.