/// <summary>
/// 转换操作。输入待转坐标，输出目标坐标。
/// </summary>
/// <param name="oldCoord">待转坐标，只取其数字部分，参考系取自属性本对象的TargetCrs属性 </param>
/// <returns></returns>
public override ICoordinate MatchedTrans(ICoordinate oldCoord)
{
IEllipsoid e = (TargetCrs.Datum as GeodeticDatum).Ellipsoid;
IGeodeticCoord geo = (IGeodeticCoord)oldCoord;
double x, y, z;
GeodeticUtils.GeodeticToXyzCoord(geo.Lon, geo.Lat, geo.Height, out x, out y, out z, e.SemiMajorAxis, e.InverseFlattening);
return(CoordinateFactory.CreateXyzCoord(x, y, z, oldCoord.Weight));
}
/// <summary>
/// 只有基准不同的 XYZ 坐标转换,采用布尔沙 7 参数模型。
/// 以WGS84转换参数作为中间参数，共转换 2 次
/// </summary>
/// <param name="oldCoord">待转坐标，只取其数字部分，参考系取自属性本对象的TargetCrs属性 </param>
/// <returns></returns>
public override ICoordinate MatchedTrans(ICoordinate oldCoord)
{
BursaTransParams BursaTransParams = ((IGeodeticDatum)SourceCrs.Datum).TransParamsToWgs84;
IXYZ temp = GeodeticUtils.BursaTransform((IXYZ)oldCoord, BursaTransParams);
//double[] result = BursaTransParams.Transform(new double[] { oldCoord.X, oldCoord.Y, oldCoord.Z });
IXYZ xyz = temp;
if (!TargetCrs.Datum.Equals(GeodeticDatum.WGS84))
{
xyz = GeodeticUtils.BursaTransform(temp, ((IGeodeticDatum)TargetCrs.Datum).TransParamsToWgs84.GetInverse());
}
return(CoordinateFactory.CreateXyzCoord(xyz.X, xyz.Y, xyz.Z));
}
