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 three-dimensional seismic data visualization systems include three-dimensional 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.
引文
[1]吴冲龙,何珍文等.地质数据三维可视化的属性_分类和关键技术.地质通报,2011,5
[2]朱亚平,杨慧珠等.OpenGL技术在地震数据可视化中的应用.石油地球物理勘探,2000.8
[3]程建远,王寿全等.地震勘探技术的新进展与前景展望.煤田地质与勘探,2009.4
[4]朱建辉,范益进.Grid三维曲面构造与显示的算法及实现,长江大学学报,2007.3
[5]张婉,王磊等.Windows环境下基于Qt的SEGY格式地震数据可视化.计算机与数字工程,2008.2
[5]张典华,蔡勇等.散乱数据点集的三角划分算法研究,计算机工程与设计,2005.8
[6]白婷,赵军等.基于OpenGL的三维曲面数据场动态显示,计算机与信息技术,2009.8
[7]张二华,高林等.三维地震数据可视化原理及方法,CT理论与应用研究,2007.9