基于三维GIS平台的大圆航线三维可视化  

3D Visualization of Great Circle Route Based on 3D GIS Platform

作　　者：郑亚波[1] 郭海亮[1] 李伟[1] 

机构地区：[1]海军大连舰艇学院,辽宁大连116018

出　　处：《指挥控制与仿真》2015年第6期128-132,共5页Command Control & Simulation

摘　　要：针对三维可视化技术在空间数据可视化表达与分析方面的强大优势,利用大圆航线各分点经纬度的计算模型,建立了三维空间直角坐标系中大圆航线和各分点间恒向线的三维空间模型,运用三维可视化理论和基于OpenGL技术的Oceaninfo三维海洋环境信息可视化平台实现了大圆航线的三维表达,同时利用二分法曲线逼近原理和层次细节(LoD)技术实现了大圆航线不同视角、不同精度要求的三维可视化。该方法能够实现对大圆航线的高效逼真绘制。Aimming at the great advantage of the 3D visualization technology in the aspect of spatial data visualization representation and analysis,this paper builds 3D spatial models of the great circle route and the rhumb line route of the adjacent two points in the 3D rectangular coordinate system,based on the calculation models of each point on the great circle route,realizes the 3D visualization representation of the great circle route through the 3D visualization theory and the Oceaninfo（ 3D ocean environment information visualization platform） based on the Open GL technology,meanwhile,implements 3D visualization of the great circle route in different visual angles and different precisions using the dichotomy curve approximation principle and LoD technology. The methods introduced in this paper can realize the rendering of the great circle route effectively and realistically.

关 键 词：大圆航线 恒向线 三维可视化 三维海洋环境信息可视化平台 

分 类 号：E991[军事—军事地形]