地形平滑中瓦片高程数据的快速调度方法  

A Fast Scheduling Method for Tile Elevation Data in Terrain Smoothing

作　　者：朱俊洁 陶伟[2] 殷明阳 ZHU Junjie;TAO Wei;YIN Mingyang(College of Computer Science,Sichuan University,Chengdu 610065;China Ship Development and Design Center,Wuhan 430064;Nuclear Power Institute of China,Chengdu 610041)

机构地区：[1]四川大学计算机学院,成都610065 [2]中国舰船研究设计中心,武汉430064 [3]中国核动力研究设计院,成都610041

出　　处：《现代计算机》2021年第12期146-150,共5页Modern Computer

摘　　要：随着"数字地球"概念的出现,大规模地形可视化在战场仿真、战场态势推演、虚拟现实等诸多领域得到了广泛的应用。为了加快地形平滑过程中高程数据的调度速度,提出一种地形平滑中瓦片高程数据的快速调度方法。该方法通过对地形数据高程值预处理,减少了大量不必要的数据调度,从而加速地形平滑。通过实验对比地形的渲染效果和调度地形瓦片的耗时,表明该方法能够有效地提高地形高程数据的调度效率。With the emergence of the concept of Digital Earth,large-scale terrain visualization has been widely used in many fields such as battlefield simulation,battlefield situation deduction and virtual reality.In order to speed up the scheduling of elevation data in terrain smoothing,a fast scheduling method for tile elevation data in terrain smoothing is proposed.This method reduces a lot of unnecessary data scheduling by preprocessing terrain elevation values,thus accelerating terrain smoothing.The experimental results show that this method can effectively improve the scheduling efficiency of terrain elevation data by comparing the rendering effect of terrain and the time of scheduling terrain tiles.

关 键 词：地形平滑 高程数据 地形瓦片 

分 类 号：P208[天文地球—地图制图学与地理信息工程]