| 顾及特殊地物的等高线自动生成浅析 |
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| 引用本文： | 韩光瞬,郭金丽.顾及特殊地物的等高线自动生成浅析[J].北京测绘,2009(4):27-29,36. |
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| 作者姓名： | 韩光瞬 郭金丽 |
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| 作者单位： | 北京市测绘设计研究院,北京,100038 |
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| 摘 要： | 以自定义实体作为等高线自动生成的载体，构造了以AcDbEntity为基类的CContour实体．通过该实体自动生成所需要的等高线。在讲述了等高线自动生成的一般过程后，强调在构造Delaunay三角网时，应考虑到地性线和特殊地物对Delaunay三角网构造的影响，利用它们对构造好的Delaunay三角网进行修正，从而构造出准确的Delaunay三角网。这对等高线生成设计有参考意义。
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| 关 键 词： | 自定义实体 等高线 Delaunay三角 特殊地物 |
The Analysis of Auto-building Contour-line on Considering Special Map Object |
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| HAN Guang-shun,GUO Jin-li.The Analysis of Auto-building Contour-line on Considering Special Map Object[J].Beijing Surveying and Mapping,2009(4):27-29,36. |
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| Authors: | HAN Guang-shun GUO Jin-li |
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| Institution: | HAN Guang-shun,GUO Jin-li (Beijing Institute of Surveying , Mapping,Beijing 100038 China) |
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| Abstract: | Using the user-defined entity as carrier of auto-building contour-line, constructing CContour entity based on the foundation Class AcDbEntity, Auto-building the necessary contour by this entity. After discussing the general process of contour-line auto-building, emphasizing to should consider the influence on Delaunay triangle net from terrain line and special map object when constructing Delaunay triangle net. Using it to correct the Delaunay triangle net constructed well, so as to construct extract Delaun... |
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| Keywords: | User-defined Entity Contour-line Delaunay Triangle Net Special Map Object |
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