| 求解制图区域的地图图幅编号的算法研究 |
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| 引用本文： | 吴曜宏,乔俊军,胡冯伟.求解制图区域的地图图幅编号的算法研究[J].地理信息世界,2017,24(4). |
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| 作者姓名： | 吴曜宏 乔俊军 胡冯伟 |
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| 作者单位： | 1. 武汉大学测绘学院,湖北 武汉,430079;2. 武汉大学测绘学院,湖北 武汉 430079;浙江省测绘科学技术研究院,浙江 杭州 310012 |
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| 摘 要： | 基于地理格网理论,从点、线、面三个方面,提出了归原法、斜率分段-同异侧判别法和投影反算-图廓内外判别法,这些算法可准确映射各种投影后制图区域所对应的基础地理信息数据范围,实现了制图范围内地理信息数据所属地图图幅编号的可视化查询。
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| 关 键 词： | 制图区域 投影反算 基础地理信息数据 图幅编号查询 |
Research on Algorithms of Identifying Map-sheet Number of Cartographic Area |
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| WU Yaohong,QIAO Junjun,HU Fengwei.Research on Algorithms of Identifying Map-sheet Number of Cartographic Area[J].Geomatics World,2017,24(4). |
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| Authors: | WU Yaohong QIAO Junjun HU Fengwei |
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| Abstract: | This artical provides three methods for identifying the map-sheet number for the drawing area. The methods are returning home position, segementing slope-assessment with the same side, projection inversion-assessment of inside map neat line based on the theoretical geographic grid. The cartographic drawing corresponding to a certain projection can be mapping correctly by these methods. The methods can be used to query the map sheet number of the geographic information data within the drawing area. |
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| Keywords: | cartographic region projection inversion fundamental geographical information data query map-sheet number |
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