[1]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(01):76-78.
　ZHANG Wei-jun,LI Yong-jun,LIU Xiang-yang.Automated portarying of contours in DEM[J].Journal of Earth Sciences and Environment,2004,26(01):76-78.
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数字地面模型中等高线的自动绘制(PDF)

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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

作者:: 张渭军¹; 李永军²; 刘向阳³; 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

Author(s):: ZHANG Wei-jun¹; LI Yong-jun²; LIU Xiang-yang³; 1 .Shool of Earth Science and Resources Management , Chang'an University , Xi'an 710054 , China ; 2 .North Road Engineering Construct Group of Hebei Province , Hebei Chengde 067400 , China ; 3 .Cheng jiao Mining of Yongcheng , Henan Yongcheng 476600 , Chi

Keywords:: contour map; the digital elevations models ; contour ; judge ; tracking

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。

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 .

[1] 彭宣茂.用局部拟合法自动绘制等值线图[J] .河海大学学报, 1989 , 32):75～ 76.
[2] 孙家广, 许隆文.计算机图形学[M] .北京:清华大学出版社, 1986 .

更新日期/Last Update: 2004-03-20