| 盆地三维构造-地层格架的矢量剪切原理及方法 |
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| 引用本文： | 田宜平,刘海滨.盆地三维构造-地层格架的矢量剪切原理及方法[J].地球科学,2000,25(3):306-310. |
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| 作者姓名： | 田宜平 刘海滨 |
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| 作者单位： | 中国地质大学资源学院, 武汉 430074 |
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| 基金项目： | 国家自然科学基金“九五”重点项目!(No .4973 2 0 0 5 ) |
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| 摘 要： | 三维矢量剪切功能的强弱, 是衡量所建立的盆地三维数字体质量的重要标志.在阐述了基于B-Rep模型的盆地三维数字体矢量剪切原理之后, 探讨了在计算机上实现矢量剪切的技术途径与方法.以线条、填充多边形、曲面和注释4种图元的剪切为基础, 建立了一个较为完善的盆地三维数字构造-地层体的矢量剪切模型, 并且编制了相应的软件.使用这一技术方法和软件系统, 对珠三凹陷进行了实际的矢量剪切分析, 取得了良好的效果.
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| 关 键 词： | 三维盆地模拟 构造-地层格架 三维数字体 矢量剪切 B-Rep模型 |
| 收稿时间： | 1999-09-06 |
VECTOR CUT PRINCIPLE AND METHOD FOR 3-D TECTONIC-STRATIGRAPHIC BASIN FRAMEWORK |
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| Tian Yiping,Liu Haibin,Liu Gang,Wu Chonglong.VECTOR CUT PRINCIPLE AND METHOD FOR 3-D TECTONIC-STRATIGRAPHIC BASIN FRAMEWORK[J].Earth Science-Journal of China University of Geosciences,2000,25(3):306-310. |
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| Authors: | Tian Yiping Liu Haibin Liu Gang Wu Chonglong |
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| Abstract: | The intensity of 3_D vector cut is an important indicator for the quality test of a 3_D digital basin model established. After the reiteration of vector cut principle of the B_Rep model_based 3_D digital basin, this paper deals with the technical approaches and methods for the actualization of the vector shearing function on a microcomputer. On the basis of vector shearing of four graphical primitives: line, polygon, surface and text, the author established a relatively perfect vector cut model for 3_D digital tectonic_stratigraphic basin, and, furthermore, wrote the corresponding software. The vector cut analysis of the Zhusan depression by means of this technical approach and software system has brought about an expected result. |
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| Keywords: | D basin modeling tectonic_stratigraphic framework 3_D digital basin vector cut B_Rep model |
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