| 平面连通巷道三维实体分层建模方法 |
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| 引用本文： | 谭正华,王李管,毕林,陈建宏.平面连通巷道三维实体分层建模方法[J].武汉大学学报(信息科学版),2010(3). |
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| 作者姓名： | 谭正华 王李管 毕林 陈建宏 |
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| 作者单位： | 中南大学资源与安全工程学院;中南大学数字矿山研究中心; |
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| 基金项目： | 国家自然科学基金资助项目(50774092) |
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| 摘 要： | 提出了平面连通巷道的分层建模解决方案:对巷道中心线进行求交点、打断操作,建立结点-路径网络拓扑图;根据外层路径优先搜索原则,提取图中所有的"闭环",获取各中心线断面数据;对闭环的边界路径进行偏移、连接操作,生成分层轮廓线;对相邻轮廓线和顶、底轮廓线分别实现巷道体的网格三角化。实验结果表明,该算法充分利用结点-路径的拓扑关系以及各中心线的断面信息,实现简单,适用于同一中段中心线任意复杂情况下的连通巷道实体建模。
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| 关 键 词： | 连通巷道 分层建模 断面 轮廓线 闭环 |
A Hierarchical Modeling Method for Plane Connected Three-Dimensional Laneway Entity Based on Media Curves |
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| TAN Zhenghua, WANG Liguan, BI Lin CHEN Jianhong.A Hierarchical Modeling Method for Plane Connected Three-Dimensional Laneway Entity Based on Media Curves[J].Geomatics and Information Science of Wuhan University,2010(3). |
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| Authors: | TAN Zhenghua WANG Liguan BI Lin CHEN Jianhong |
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| Institution: | TAN Zhenghua1,2 WANG Liguan1,2 BI Lin1 CHEN Jianhong1(1 School of Resources , Safety Engineering,Central South University,932 South Lushan Road,Changsha 410083,China)(2 Research Center of Digital Mine,China) |
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| Abstract: | Laneway is one of the principal parts in geological virtual scenes.A hierarchical modeling method for plane connected laneway entity based on media curves was proposed.Node-path graph according to the broken up curves generated by intersection points of media curves was constructed.All closed loops were picked up through outer path tracing prior principle.The cross-section data of media curves were obtained,and a series of hierarchical contours were built,which compose the hierarchical contours of the lanew... |
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| Keywords: | connected laneway hierarchical modeling cross-section contour curve closed-loop |
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