Class DatumTransformation

java.lang.Object

org.episteme.natural.earth.coordinates.DatumTransformation

public final class DatumTransformation
extends Object

Provides utilities for datum transformations (e.g., Molodensky or 7-parameter Helios/Bursa-Wolf). Essential for converting archival/historical spatial data to modern reference systems.

Since:

1.0

Author:

Silvere Martin-Michiellot, Gemini AI (Google DeepMind)

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final record	DatumTransformation.HelmertParameters	Parameters for a Helmert 7-parameter transformation.

Field Summary

Fields

Modifier and Type	Field	Description
static final DatumTransformation.HelmertParameters	WGS84_TO_ED50	Standard transformation from WGS 84 to ED 50 (European Datum 1950) Approximate parameters for western Europe.
static final DatumTransformation.HelmertParameters	WGS84_TO_NAD27	Standard transformation from WGS 84 to NAD 27 (North American Datum 1927) Approximate parameters for CONUS.

Method Summary

Modifier and Type	Method	Description
static ECEFCoordinate	transform(ECEFCoordinate ecef, DatumTransformation.HelmertParameters p)	Performs a 7-parameter Helmert transformation on ECEF coordinates.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

WGS84_TO_ED50

public static final DatumTransformation.HelmertParameters WGS84_TO_ED50

Standard transformation from WGS 84 to ED 50 (European Datum 1950) Approximate parameters for western Europe.

WGS84_TO_NAD27

public static final DatumTransformation.HelmertParameters WGS84_TO_NAD27

Standard transformation from WGS 84 to NAD 27 (North American Datum 1927) Approximate parameters for CONUS.

Method Details

transform

public static ECEFCoordinate transform(ECEFCoordinate ecef,
 DatumTransformation.HelmertParameters p)

Performs a 7-parameter Helmert transformation on ECEF coordinates.