# Uses of Interface
org.opengis.referencing.operation.Projection

Packages that use Projection
Package
Description
org.apache.sis.referencing.crs
Coordinate Reference System (CRS) definitions as coordinate systems related to the earth through datum.
org.opengis.referencing.crs
Coordinate reference systems (coordinate systems with a datum).
org.opengis.referencing.operation
Coordinate operations (relationship between any two coordinate reference systems).

- ## Uses of Projection in org.apache.sis.referencing.crs

  Subclasses with type arguments of type Projection in org.apache.sis.referencing.crs
  Modifier and Type
  Class
  Description
  `class`
  `DefaultProjectedCRS`
  A 2-dimensional coordinate reference system used to approximate the shape of the earth on a planar surface.
  Methods in org.apache.sis.referencing.crs that return Projection
  Modifier and Type
  Method
  Description
  `Projection`
  DefaultProjectedCRS.`getConversionFromBase()`
  Returns the map projection from the base CRS to this CRS.

- ## Uses of Projection in org.opengis.referencing.crs

  Methods in org.opengis.referencing.crs that return Projection
  Modifier and Type
  Method
  Description
  `Projection`
  ProjectedCRS.`getConversionFromBase()`
  Returns the map projection from the base CRS to this CRS.

- ## Uses of Projection in org.opengis.referencing.operation

  Subinterfaces of Projection in org.opengis.referencing.operation
  Modifier and Type
  Interface
  Description
  `interface`
  `ConicProjection`
  Base interface for conical map projections.
  `interface`
  `CylindricalProjection`
  Base interface for cylindrical map projections.
  `interface`
  `PlanarProjection`
  Base interface for for azimuthal (or planar) map projections.