2012-12-13 185 views

回答

7

有一個開源dll庫here (geocoordconversion),可以將eastings/northings轉換爲緯度/經度。因此,您可以將某些東西用於原始轉換。

或者,有什麼可能是有用的,我有一個project on GitHub,它使用此DLL將完整的Ordnance Survey郵編數據集導入到SQL Server中,將eastings/northings轉換爲lat/lon。這可用作命令行可執行文件。如果這與你想要的一致,那麼你可能會使用它。或者至少,有代碼強調如何使用DLL來執行轉換。

更新 從我的項目,.NET代碼段使用DLL轉換爲緯度/經度:

/// <summary> 
/// Converts northing and easting coordinates into Longitude/Latitude coordinates in the WGS84 coordinate system. 
/// </summary> 
/// <param name="northing">northing coordinate</param> 
/// <param name="easting">easting coordinate</param> 
/// <returns>converted coordinates</returns> 
protected PolarGeoCoordinate ConvertToLonLat(double northing, double easting) 
{ 
    // Use GeoCoordConversion DLL to convert the Eastings & Northings to Lon/Lat 
    // coordinates in the WGS84 system. The DLL was pulled from: http://code.google.com/p/geocoordconversion/ 
    // and is available under the GNU General Public License v3: http://www.gnu.org/licenses/gpl.html 
    GridReference gridRef = new GridReference((long)easting, (long)northing); 
    PolarGeoCoordinate polarCoord = GridReference.ChangeToPolarGeo(gridRef); 
    return PolarGeoCoordinate.ChangeCoordinateSystem(polarCoord, CoordinateSystems.WGS84); 
} 
+0

+1因爲你的帖子去年幫助我做這件事。建立一個小應用程序,使用上面提到的dll – twoleggedhorse

+0

謝謝!這對我來說非常有用。有一件事:我選擇正確的方法'GridReference.ChangeToPolarGeo(new GridReference(1233,123));'? – Artem

+0

是的,請參閱我的回答 – AdaTheDev

0

如果你看到this page是顯示的算法,你可以申請改變這種UTM格式來改變它們。您下載的頁面上有一個示例電子表格,並查看計算結果。我懷疑應該很容易轉換抓取查找表並使用它們加入您的數據。

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