一种自适应混合加权动态推算地形生成算法  

Adaptive Mixed Weighted Dynamic Reckon Algorithm for Generation of Terrain

作　　者：张森[1,2] 康凤举[1,2] 张建春[1,2] 韩翃[1,2] 曾艳阳[1,2] 

机构地区：[1]西北工业大学航海学院,西安710072 [2]水下信息处理与控制国家重点实验室,西安710072

出　　处：《系统仿真学报》2011年第8期1601-1605,共5页Journal of System Simulation

基　　金：水下信息处理与控制国家重点实验室基金(9140C2305041001)

摘　　要：针对大地形生成中严重跳变失真问题,提出了一种自适应混合加权动态推算地形生成算法。该算法研究了地形高程数据点对新生子点的权重数学建模过程,在此基础上给出了混合加权生成新子点的动态校正方法,建立了视距、LOD层级与插值点个数等三者的关联度模型。测试结果表明,该算法提供了一种可靠的大地形生成技术,实现了基于关联度模型的多层LOD自适应分级细化粗粒度模型的渐变过程,实时性与逼真度良好。In order to avoid serious terrain distortion of jumping in large terrain simulation,a novel adaptive mixed weighted dynamic reckon algorithm for generation of terrain was proposed.Through researching different weights of terrain elevation generating new sub-points data and analyzing its＇ mathematical models,a method of dynamically correction on mixed weighted generating new sub-points was provided.The relational table model of sight distance,LOD hierarchy and number of Interpolating points was made.The test results indicate that the algorithm provides a dependable technology of terrain generation and can be well used on gradient of LOD dynamic hierarchical refined grained model.It meets the need in real time and fidelity.

关 键 词：地形插值 自适应 混合加权 动态推算 可视化仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]