| 基于平面多边形的不规则三角网分割 |
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| 引用本文： | 任建波,颉耀文,屈宏斌.基于平面多边形的不规则三角网分割[J].甘肃科学学报,2005,17(1):65-68. |
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| 作者姓名： | 任建波 颉耀文 屈宏斌 |
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| 作者单位： | 兰州大学,资源环境学院,甘肃,兰州,730000 |
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| 摘 要： | 判断平面多边形与不规则三角网(TIN)中的三角形的相离、相交和包含3种位置关系，确定与多边形相离、包含的三角形应分别归入原TIN和新形成的TIN中，与多边形相交的三角形重新进行三角剖分，剖分后的三角形归入相应的TIN中，从而实现了基于平面多边形的不规则三角网的分割。
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| 关 键 词： | 不规则三角网（TIN） 平面多边形 分割 |
| 文章编号： | 1004-0366(2005)01-0065-04 |
| 修稿时间： | 2004年5月29日 |
The Partition of the Triangulated Irregular Network Based on the Plane Polygon |
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| REN Jian-bo,XIE Yao-wen,QU Hong-bin.The Partition of the Triangulated Irregular Network Based on the Plane Polygon[J].Journal of Gansu Sciences,2005,17(1):65-68. |
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| Authors: | REN Jian-bo XIE Yao-wen QU Hong-bin |
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| Abstract: | It is necessary to judge the three relations of position: separation, intersection and inclusion between the plane polygon and the Triangulated Irregular Network(TIN), and then to confirm the triangles of separation and inclusion should be attributed to the original TIN and the new TIN respectively. The triangle intersected by the plane polygon should be triangulated again, and the triangles after triangulation should be attributed to the corresponding TIN, thus realizing the partition of the TIN based on the plane polygon. |
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| Keywords: | triangulated irregular Network(TIN) plane polygon partition |
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