| 常用坐标转换模型及其实用性研究 |
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| 引用本文： | 王文利,程传录,陈俊英.常用坐标转换模型及其实用性研究[J].测绘信息与工程,2010,35(5):37-39. |
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| 作者姓名： | 王文利 程传录 陈俊英 |
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| 作者单位： | 国家测绘局大地测量数据处理中心,西安市友谊东路334号,710054 |
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| 摘 要： | 介绍了各种常用坐标转换模型及适用性,分析了重合点密度对不同坐标转换模型转换精度的影响和二维四参数转换模型投影变形影响,研究了不同坐标模型外推的范围与外推误差的大小,得出了相应的结论,为不同区域地理信息坐标转换模型的选取提供了有益的参考依据。
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| 关 键 词： | 坐标系 坐标转换 重合点 |
COORDINATE TRANSFORMATION MODELS AND THEIR PRACTICABILITY |
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| WANG Wenli,CHENG Chuanlu,CHEN Junying.COORDINATE TRANSFORMATION MODELS AND THEIR PRACTICABILITY[J].Journal of Geomatics,2010,35(5):37-39. |
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| Authors: | WANG Wenli CHENG Chuanlu CHEN Junying |
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| Institution: | (Geodetic Data Processing Centre,State Bureau of Surveying and Mapping,334 East Youyi Road,Xi＇an 710054,China) |
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| Abstract: | We introduce various coordinate transformation models and their practicability.Through a large of tentative calculations,we analze the coincident point density influence in different coordinate transformation model and four-parameter model of two-dimensional projection deformation,we study size of different coordinate transformation model of extrapoled extension and extrapoled error,and obtain corresponding conclusion that provides useful of reference for different regions of geographic information coordinate transformation. |
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| Keywords: | coordinate system coordinate transformation coincident point |
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