基于等高线的三维地形可视化研究
On Visualization of Three-Dimensional Terrain Based on Contour Lines
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摘要: 针对采用网格模型生成三维地形时格网点高程值的获取、数据异常处理、三维地形的生成效果等问题进行分析,提出了具体的解决方案,并以京山地形为例对该方案进行了验证。Abstract: The grid model is common in the reconstruction of the three-dimension terrain.This method has some advantages,but there are some problems needed to be studied,such as how to insure the right elevation of the grid point,how to deal with the abnormal data,how to get the better effect and so on.These problems are analyzed,some methods are presented to solve them and an example is shown for validation.
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