Package uk.co.mccombe.mapping

Class Lambert93

java.lang.Object
uk.co.mccombe.mapping.CoordinateSystem
uk.co.mccombe.mapping.Projection
uk.co.mccombe.mapping.Lambert
uk.co.mccombe.mapping.Lambert93
public class Lambert93 extends Lambert
A non-abstract class implementing the Lambert Conformal Conical (LCC) projection for the French Lambert-93 system. Unlike previous French LCC implementations, this one uses GRS80/WGS84 ellipsoid and datum by default.

  • Constructor Details

    • Lambert93

      public Lambert93(Position p, Ellipsoid e, Datum d)
      Create an instance of Lambert93 from Position, Ellipsoid and Datum
      Parameters:
      p - the position of this point
      e - The Ellipsoid to use
      d - The datum to be used

    • Lambert93

      public Lambert93(ENPair en, Ellipsoid e, Datum d)
      Create an instance of Lambert93 from easting and northing distances, Ellipsoid and Datum
      Parameters:
      en - Easting and Northing distances
      e - Ellipsoid to use
      d - Datum to use

  • Method Details

    • makePoint

      public static Lambert93 makePoint(String gridref, Ellipsoid e, Datum d) throws GridFormatException
      Static factory method to create an instance of Lambert93 from a grid reference String
      Parameters:
      gridref - A grid reference of the form "X=... Y=..." where the values are easting and northing distances in km.
      e - Ellipsoid to use in conversions
      d - Datum to use in conversions
      Returns:
      A new LambertI instance
      Throws:
      GridFormatException - thrown in case of format error in the grid reference

    • defaultDatum

      public Datum defaultDatum()
      Define default Datum for this system
      Overrides:
      defaultDatum in class Lambert
      Returns:
      the default Datum (Datum.WGS_1984)

    • defaultEllipsoid

      public Ellipsoid defaultEllipsoid()
      Define the default Ellipsoid for this system
      Overrides:
      defaultEllipsoid in class Lambert
      Returns:
      the default Ellipsoid (Ellipsoid.GRS80)

    • phiU

      protected double phiU()
      Define Upper standard parallel for this conical projection
      Specified by:
      phiU in class Lambert
      Returns:
      Upper Standard Parallel (radians)

    • phiL

      protected double phiL()
      Define lower standard parallel for this projection
      Specified by:
      phiL in class Lambert
      Returns:
      Lower Standard Parallel (radians)

    • phiB

      protected double phiB()
      Define latitude of false origin
      Specified by:
      phiB in class Lambert
      Returns:
      Latitude of false origin (radians)

    • lamda0

      protected double lamda0()
      Define longitude of grid origin
      Specified by:
      lamda0 in class Lambert
      Returns:
      Longitude of grid origin (radians)

    • e0

      protected double e0()
      Define false easting value
      Specified by:
      e0 in class Lambert
      Returns:
      False easting (m)

    • n0

      protected double n0()
      Define false northing
      Specified by:
      n0 in class Lambert
      Returns:
      False northing distance (m)