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| 数字地面模型中等高线的自动绘制 | |
| 引用本文： | 张渭军,李永军,刘向阳. 数字地面模型中等高线的自动绘制[J]. 地球科学与环境学报, 2004, 26(1): 76-78 |
| 作者姓名： | 张渭军 李永军 刘向阳 |
| 作者单位： | 1. 长安大学,地球科学与国土资源学院,陕西,西安,710054 2. 河北北方公路工程建设集团,河北,承德,067400 3. 永城市城郊煤矿,河南,永城,476600 |
| 摘 要： | 等高线图在实际工作中应用非常广泛,在数字地面模型的基础上自动生成等高线图有许多算法.在数字地面模型的基础上,着重讨论了四边形格网等高线图的自动生成方法,主要包括等高点的判断、跟踪和连接,为了使等高线跟踪唯一,提出一个新的等高线追踪的判别算法.实践表明在“跟踪-连接“中确定等高线的走向时,不仅可以避免追踪的不确定性,而且简单实用,所述等高线的“判断-跟踪-连接“是正确可行的. |
| 关 键 词： | 等高线图 数字地面模型 等高线 判断 跟踪 |
| 文章编号： | 1672-6561(2004)01-0076-03 |
| 修稿时间： | 2003-03-30 |
Automated portarying of contours in DEM |
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| ZHANG Wei-jun,LI Yong-jun,LIU Xiang-yang. Automated portarying of contours in DEM[J]. Journal of Earth Sciences and Environment, 2004, 26(1): 76-78 | |
| Authors: | ZHANG Wei-jun LI Yong-jun LIU Xiang-yang |
| Affiliation: | ZHANG Wei-jun~1,LI Yong-jun~2,LIU Xiang-yang~3 |
| Abstract: | Contour map is quite useful in practice. There is much arithmetic in automated generating contour map based on the Digital Elevation models. In this paper, we focus on discussing a method on the base of DEM, including judging?tracking and linking of the points of same altitude. In order to confirm the contour's uniqueness, the paper introduces a new method of tracking contour. While confirming the direction of contour in the "tracking-linking" procedure, the method not only is simply and utility, but also can avoid some uncertain result. Practice show that the "judging-tracking-linking" method describled in the paper is correct and practicable. |
| Keywords: | contour map the digital elevations models contour judge tracking |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |