| 基于PDA环境的等值线自动绘制 |
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| 引用本文： | 邢汉发,陈习森,陈小祥.基于PDA环境的等值线自动绘制[J].四川测绘,2006,29(4):168-171. |
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| 作者姓名： | 邢汉发 陈习森 陈小祥 |
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| 作者单位： | 中南大学测绘与国土信息工程系,湖南长沙,410083 中南大学GIS研究中心,湖南长沙,410083 中南大学GIS研究中心,湖南长沙,410083 |
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| 摘 要： | 等值线的绘制在自然科学领域上的应用十分广泛.本文介绍了一种在嵌入式终端PDA上绘制等值线的方法,该方法首先用逐点插入法生成Delaunay三角网,然后基于三角网追踪等值点,最后以MapX Mobile控件为图形平台,在Embedded Visual C 4.0环境下编程绘制等值线图,实现等值线图的放大、缩小、漫游、属性查询等GIS功能.继而以离散高程点为实验数据基于PDA环境绘制了等高线图,验证了上述方法的可行性.
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| 关 键 词： | PDA Delaunay三角网 等值线 MapX Mobile |
| 文章编号： | 1001-8379(2006)04-0168-04 |
| 修稿时间： | 2006年6月11日 |
Research on Isoline Mapping Based on PDA |
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| XING Han-fa,CHEN Xi-sen,CHEN Xiao-xiang.Research on Isoline Mapping Based on PDA[J].Surveying and Mapping of Sichuan,2006,29(4):168-171. |
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| Authors: | XING Han-fa CHEN Xi-sen CHEN Xiao-xiang |
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| Abstract: | The isoline mapping is extremely widespread used in the natural sciences domain.A methord about isoline mapping on the embedded terminal device PDA is introduced by this paper.First,Delaunay triangulation is generated using incremental insertion.Second,isolines are traced based on Delaunay triangulation.Finally,complaints to MapX Mobile platform,isoline map is drafted using Embedded Visual C 4.0 and many GIS functions are realized.Such as enlarging,shrinking,roaming,attributes enquiries and so on.In the end,discrete elevation points is used as an example to examine these methods,which proves that methods are practical. |
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| Keywords: | PDA delaunay triangulation isoline MapX Mobile |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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