Interface OperationMethod

All Superinterfaces:

@UML(identifier="CC_OperationMethod", specification=ISO_19111) public interface OperationMethod extends IdentifiedObject
Definition of an algorithm used to perform a coordinate operation. Most operation methods use a number of operation parameters, although some coordinate conversions use none. Each coordinate operation using the method assigns values to these parameters.
Example: an operation method named “Mercator (variant A)” (EPSG:9804) declares the following parameters:
  • Latitude of natural origin” in degrees.
  • Longitude of natural origin” in degrees.
  • Scale factor at natural origin” as a dimensionless number.
  • False easting” in metres.
  • False northing” in metres.
Implementations can optionally assign default values to those parameters.
Operation method identifiers are optional but recommended, since the method name is potentially ambiguous. Some recommended EPSG identifiers are reproduced below (see ISO 19162 or the EPSG repository for a more complete list):
EPSG identifier for some operation method names
Name Alias Identifier
Albers Equal Area Albers 9822
Hotine Oblique Mercator (variant A) Rectified skew orthomorphic 9812
Hotine Oblique Mercator (variant B) Rectified skew orthomorphic 9815
Lambert Azimuthal Equal Area Lambert Equal Area 9820
Lambert Conic Conformal (1SP) Lambert Conic Conformal 9801
Lambert Conic Conformal (2SP) Lambert Conic Conformal 9802
Mercator (variant A) Mercator 9804
Mercator (variant B) Mercator 9805
Oblique stereographic Double stereographic 9809
Transverse Mercator Gauss-Boaga / Gauss-Krüger 9807
See Also: