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在ETRS89系统中计算坐标并进行比较

我知道有代码可用于将ETRS89转换为wgs84。但是两个系统之间的差异超过半米，我需要高精度，所以我需要直接使用ETRS89，

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如何将自定义数据源添加到GeoServer WMS服务？

我正在安装GeoServer作为WMS服务器与OpenLayers合作。
麻烦的是，我必须使用通过web服务提供的第3 方瓷砖源。
所以我想我必须调整地理.

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