基于双层规则化的渠道地面网格模型

Channel Surface Mesh Model Based on the Double Rules

将网格分成内部网格和外部网格两个层次,以适用于渠道设计这种不规则带状地形的应用。算法将渠道经过的地面模型划分成大小相等的正四边形外部网格,对于每个有地形数据点的外部网格进一步划分成小的内部网格。这样可以利用网格坐标和顶点高程,实时计算任意点地面高程。

In this Paper,the surface mesh will be divided into a grid of internal and external mesh grid at two levels to suitable for the design of such irregular channel strip topography applications.The ground channel model was divided into equal size of the external quadrilateral grid by the algorithm.If there were data points in the external grid,then the terrain further was divided into small grids within the grid.This method could be used in grid coordinates and vertex elevation to calculate the ground elevation at real-time.