基于三维计算机图形库的地震数据可视化关键技术  

Seismic Data Visualization Technologies Based on 3D Computer Graphic Library-OpenGL

作　　者：甘文杰[1] 别红霞[1] 

机构地区：[1]北京邮电大学信息与通信工程学院,北京100080

出　　处：《网络新媒体技术》2012年第1期34-38,共5页Network New Media Technology

基　　金：深部探测技术与实验研究专项(SinoProbe)资助;项目编号201011081-4

摘　　要：三维地震数据可视化系统的核心问题是三维场景构建、曲面绘制与如何提高效率。本文基于OpenGL图形库,针对地震工区物理坐标的特点确定投影窗口,构建三维场景。为正确绘制残缺曲面,采用了冗余坐标填充方法处理曲面边界坐标。利用索引数组技术提高渲染效率。The tough issues of threedimensional seismic data visualization systems include threedimensional scene building, surface drawing and rendering optimization. According to the physical coordinates in seismic work area, a method was proposed to build the three -dimensional scene based on OpenGL. Redundant coordinates were considered to approach surface boundary coordinates to draw incomplete surfaces. In addition, index array was used for better rendering efficiency.

关 键 词：三维图形 残缺曲面 索引数组 地震数据可视化 渲染效率 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]