| 基于钻井数据的地质体3维可视化研究 |
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| 引用本文： | 胡刚.基于钻井数据的地质体3维可视化研究[J].测绘软科学研究,2012(2):65-69,74. |
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| 作者姓名： | 胡刚 |
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| 作者单位： | 湖南省地质测绘院,湖南衡阳421001 |
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| 摘 要： | 地质体3维可视化是地质工程中急需解决的一个热点问题，利用可视化的结果，可以将地质体的结构特征直观形象地展现在用户面前，使之可以非常直观地、清楚地对地质体进行各种观察和分析。笔者在综合考虑各种建模方法的基础之上，结合本文的建模数据——钻井数据的特点，采用广义三棱柱（Generalizedtri-prism，简称GTP）作为建模的体元对地质体进行3维建模，并对传统的基于钻井数据的3维地质建模的方法做了一些改进，使GTP可以自动地、快速地剖分成四面体，以此来解决由于GTP的侧而不是平面所带来的问题。最后，利用VTK（VisuaIizationToolkit，简称VTK）可视化技术，开发了一个3维地质可视化系统，并利用该系统对本文建模方法的实际建模效果进行了展示和验证。
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| 关 键 词： | 地质体 3维可视化 广义三棱柱 VTK |
Research of 3D Visualization of Geologic Body Based on Borehole Data |
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| HU Gang.Research of 3D Visualization of Geologic Body Based on Borehole Data[J].Research on Sofi Science of Surveying and Mapping,2012(2):65-69,74. |
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| Authors: | HU Gang |
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| Institution: | HU Gang (Institute of Geological Surveying and Mapping of Hunan Province, Hengyang 421001, China) |
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| Abstract: | 3D visaalization of geologic body is a hot issue which is urgent to he solved in geological engineering. Using the result of visualization, the strtlctures and features of the geological hody can be displayed to the user visually. Therefore. the users can take various kinds of observations and analysis of geological hody very intuitively and clearly. On the basis of considering of Former researches, combined with the characterislics uf modeling data of horehole data in this paper, it took the GTP （Generalizedtri-prism） as a volume element of modeling for 3D geological nlodeling, made some improvements t）n the traditional methi~d uf 3D geological modeling based on drilling data, so that GTP can automatically and quickly split into tetrahedron to solve the problem which is caused hy the profile of GTP is not flat, Finally, it developed a 3D geological visualization system by use of VTK （Visualization Toolkit）. By this system, the actual cffeet of the modeling method of this paper was demonstrated and validated. |
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| Keywords: | geologic body 3D visualization Generalized tri-prism（GTP） VTK |
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