## Uses of Class
org.apache.sis.referencing.datum.AbstractDatum

- Packages that use AbstractDatum
  Package | Description
  --- | ---
  org.apache.sis.referencing.datum | Relationship of a `CoordinateSystem` (an abstract mathematical entity) to the earth or other system.

- - ### Uses of AbstractDatum in org.apache.sis.referencing.datum

    Subclasses of AbstractDatum in org.apache.sis.referencing.datum
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `DefaultEngineeringDatum` | Defines the origin of an engineering coordinate reference system.
    `class` | `DefaultGeodeticDatum` | Defines the location and orientation of an ellipsoid that approximates the shape of the earth.
    `class` | `DefaultImageDatum` | Defines the origin of an image coordinate reference system.
    `class` | `DefaultParametricDatum` | Defines the origin of a parametric coordinate reference system.
    `class` | `DefaultTemporalDatum` | Defines the origin of a temporal coordinate reference system.
    `class` | `DefaultVerticalDatum` | Identifies a particular reference level surface used as a zero-height surface.

    Methods in org.apache.sis.referencing.datum that return AbstractDatum
    Modifier and Type | Method | Description
    --- | --- | ---
    `static AbstractDatum` | AbstractDatum.`castOrCopy​(Datum object)` | Returns a SIS datum implementation with the values of the given arbitrary implementation.