/// <summary>
/// 地球坐标(WGS-84)转火星坐标 (GCJ-02)
/// </summary>
/// <param name="wgsPoint">地球坐标(WGS-84)</param>
/// <returns>火星坐标 (GCJ-02)</returns>
public static LatLngPoint WGS84ToGCJ02(LatLngPoint wgsPoint)
{
if (GeoHelper.OutOfChina(wgsPoint))
{
return(wgsPoint);
}
LatLngPoint _transPoint = Transform(wgsPoint);
return(new LatLngPoint(wgsPoint.LatY + _transPoint.LatY, wgsPoint.LonX + _transPoint.LonX));
}
/// <summary>
/// 火星坐标转 (GCJ-02)地球坐标(WGS-84)
/// </summary>
/// <param name="gcjPoint">火星坐标转 (GCJ-02)</param>
/// <returns>地球坐标(WGS-84)</returns>
public static LatLngPoint GCJ02ToWGS84(LatLngPoint gcjPoint)
{
if (GeoHelper.OutOfChina(gcjPoint))
{
return(gcjPoint);
}
LatLngPoint _transPoint = Transform(gcjPoint);
return(new LatLngPoint(gcjPoint.LatY - _transPoint.LatY, gcjPoint.LonX - _transPoint.LonX));
}
/// <summary>
/// 地球坐标(WGS-84)转火星坐标 (GCJ-02)
/// </summary>
/// <param name="wgsPoint">地球坐标(WGS-84)</param>
/// <returns>火星坐标 (GCJ-02)</returns>
public LatLngPoint WGS84ToGCJ02(LatLngPoint wgsPoint)
{
MapCoord _findedCoord = QueryOffSetData(wgsPoint);
double _pixY = GeoHelper.LatToPixel(wgsPoint.LatY, 18);
double _pixX = GeoHelper.LonToPixel(wgsPoint.LonX, 18);
_pixY += _findedCoord.Y_off;
_pixX += _findedCoord.X_off;
double _lat = GeoHelper.PixelToLat(_pixY, 18);
double _lng = GeoHelper.PixelToLon(_pixX, 18);
return(new LatLngPoint(_lat, _lng));
}
/// <summary>
/// 火星坐标转 (GCJ-02)地球坐标(WGS-84)
/// </summary>
/// <param name="gcjPoint">火星坐标转 (GCJ-02)</param>
/// <returns>地球坐标(WGS-84)</returns>
public LatLngPoint GCJ02ToWGS84(LatLngPoint gcjPoint)
{
MapCoord _findedCoord = QueryOffSetData(gcjPoint);
double _pixY = GeoHelper.LatToPixel(gcjPoint.LatY, 18);
double _pixX = GeoHelper.LonToPixel(gcjPoint.LonX, 18);
_pixY -= _findedCoord.Y_off;
_pixX -= _findedCoord.X_off;
double _lat = GeoHelper.PixelToLat(_pixY, 18);
double _lng = GeoHelper.PixelToLon(_pixX, 18);
return(new LatLngPoint(_lat, _lng));
}
