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A Method of Visual Digital Terrain Display Based on DEM Data
Author(s): 
Pages: 339-342
Year: Issue:  3
Journal: JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY

Keyword:  可视化数字地形数字高程模型地形绘制;
Abstract: 给出数字高程模型(DEM)数据的存储格式,研究如何有效地读取DEM数据,并把它转化为可以被OpenGL图形库所读取的数据格式的方法.在此基础上,研究绘制三维地形涉及到的问题及其绘制原理,给出了利用OpenGL图形库进行地形绘制的简单易行的实现方法,并给出实例.最后,讨论了现存的几种地形简化方法,为解决基于DEM数据的地形实时、快速绘制打下了基础.
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