| 基于离散点绘制等高线算法的研究 |
| |
| 引用本文： | 吕建升,须鼎兴.基于离散点绘制等高线算法的研究[J].四川测绘,2007,30(1):17-19. |
| |
| 作者姓名： | 吕建升 须鼎兴 |
| |
| 作者单位： | 同济大学测量与国土信息工程系,上海200092 |
| |
| 摘 要： | 等高线图在实际工作中应用非常广泛，在离散点数据的基础上自动生成等高线图有许多算法。本文着重讨论了如何在采集离散点时加入编码的基础上，尽量减少或不进行人工干预，基于有约束的TIN构建方法一次性生成等高线图。实践表明该方法能够明显加快成图速度与提高等高线成图的精度。
|
| 关 键 词： | 不规则三角网 等高线 数据过滤 |
| 文章编号： | 1001-8379(2007)01-0017-03 |
| 修稿时间： | 2006-07-04 |
STUDY ARITHMETIC OF GENERATING CONTOUR WITH DISCRETE POINTS |
| |
| LU Jian-sheng,XU Ding-xin.STUDY ARITHMETIC OF GENERATING CONTOUR WITH DISCRETE POINTS[J].Surveying and Mapping of Sichuan,2007,30(1):17-19. |
| |
| Authors: | LU Jian-sheng XU Ding-xin |
| |
| Institution: | TongJi University College of Civil Engineering Shanghai,Shanghai 200092, China |
| |
| Abstract: | Contour map is widely used in practice. There are so many arithmetic to generate contour map on the basis of discrete points. This paper focus on discussing under the condition of few or no intervenor how to produce contour map with constrained delaunay triangulation and the method of adding codes when gathering discrete altitude points. Practice show that the method can accelerate the protracting of contour and improve its precision. |
| |
| Keywords: | triangle irregular network contour data filtration |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
