| 海图图廓经纬度细分算法及实现 |
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| 引用本文： | 董楠,李树军,黄文骞,郑义东.海图图廓经纬度细分算法及实现[J].测绘工程,2008,17(2):54-57. |
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| 作者姓名： | 董楠 李树军 黄文骞 郑义东 |
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| 作者单位： | 海军大连舰艇学院,辽宁,大连,116018;海军大连舰艇学院,海洋与测绘科学系,辽宁,大连,116018 |
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| 摘 要： | 海图图廓经纬度细分是编制海图时一项繁杂和重要的任务。在计算海图数学基础时，不同的比例尺区间内，海图图廓所选取的经纬度细分样式是不同的。文中首先对不同比例尺区间的海图图廓的细分样式做了详细分析，研究了两种算法，然后利用VC＋＋编程技术，实现了各种比例尺的图廓经纬度细分的自动计算与展绘。
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| 关 键 词： | 图廓 经纬度细分 墨卡托投影 |
| 文章编号： | 1006-7949(2008)02-0054-04 |
| 修稿时间： | 2007年5月15日 |
The arithmetic and implementing of subdivisions of graticules on chart borders |
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| DONG Nan,LI Shu-jun,HUANG Wen-qian,ZHENG Yi-dong.The arithmetic and implementing of subdivisions of graticules on chart borders[J].Engineering of Surveying and Mapping,2008,17(2):54-57. |
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| Authors: | DONG Nan LI Shu-jun HUANG Wen-qian ZHENG Yi-dong |
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| Institution: | DONG Nan ,LI Shujun, HUANG Wen-qian, ZHENG Yi-dong (1. The Second Group of the Master, Dalian Naval Academy, Dalian 116018, China; 2. Dept. of Hydrography and Cartography, Dalian naval Academy, Dalian 116018, China) |
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| Abstract: | The subdivision of graticules of chart borders is a very important and complicated task in chart compilation.When computing the mathematical foundation of digital chart,the patterns and designs of chart borders are different in every scale levels.So this article analyses the different designs of chart borders which is very complicated according to the scale levels firstly,and then studies two kinds of arithmetic,finally,implements the automatic calculating and plotting of the subdivision of graticules of chart borders using VC programming. |
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| Keywords: | chart borders subdivisions of graticule Mercator's projection |
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