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我是一名 GIS 新手，但有将纬度/经度转换为 UTM 坐标的代码，并且它假定 WGS84 基准。

我还有一个地球半径、圆度等不同值的列表：

    基准赤道半径 (m) 极半径 (m) 展平

    WGS84 6,378,137 6,356,752.3142 1/298.257223563
    艾里 1830 6,377,563.4 6,356,256.9 1/299.32

ETC...

计算不同的投影是否像替换这些不同的常数一样简单？我找不到任何支持或反驳这种可能性的东西。

谢谢

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There are many online tools to perform this conversion, this one for instance. That tool provides this reference which has an excel spreadsheet including the required formulas. In programming terms, you can use GDAL/OGR and PROJ4 to effect the conversion seamlessly using Python, for example. Any GIS software package will also be able to reproject the data for you without the hassle.

To answer your last question, no, changing the constants is not sufficient to do the conversion. You are correct, however, that the way the conversion is done is datum-dependent.

于 2011-01-28T14:58:46.567 回答