# Uses of Interface
org.opengis.metadata.spatial.GCP

Packages that use GCP
Package
Description
org.apache.sis.metadata.iso.spatial
Information about the mechanisms (grid or vector) used to represent spatial data.
org.opengis.metadata.spatial
Spatial representation information (includes grid and vector representation).

- ## Uses of GCP in org.apache.sis.metadata.iso.spatial

  Classes in org.apache.sis.metadata.iso.spatial that implement GCP
  Modifier and Type
  Class
  Description
  `class`
  `DefaultGCP`
  Information on ground control point.
  Methods in org.apache.sis.metadata.iso.spatial that return types with arguments of type GCP
  Modifier and Type
  Method
  Description
  `Collection<GCP>`
  DefaultGeorectified.`getCheckPoints()`
  Returns the geographic references used to validate georectification of the data.
  `Collection<GCP>`
  DefaultGCPCollection.`getGCPs()`
  Returns the ground control point(s) used in the collection.
  Methods in org.apache.sis.metadata.iso.spatial with parameters of type GCP
  Modifier and Type
  Method
  Description
  `static DefaultGCP`
  DefaultGCP.`castOrCopy(GCP object)`
  Returns a SIS metadata implementation with the values of the given arbitrary implementation.
  Method parameters in org.apache.sis.metadata.iso.spatial with type arguments of type GCP
  Modifier and Type
  Method
  Description
  `void`
  DefaultGeorectified.`setCheckPoints(Collection<? extends GCP> newValues)`
  Sets the geographic references used to validate georectification of the data.
  `void`
  DefaultGCPCollection.`setGCPs(Collection<? extends GCP> newValues)`
  Sets the ground control point(s) used in the collection.
  Constructors in org.apache.sis.metadata.iso.spatial with parameters of type GCP
  Modifier
  Constructor
  Description
  ``
  `DefaultGCP(GCP object)`
  Constructs a new instance initialized with the values from the specified metadata object.

- ## Uses of GCP in org.opengis.metadata.spatial

  Methods in org.opengis.metadata.spatial that return types with arguments of type GCP
  Modifier and Type
  Method
  Description
  `Collection<? extends GCP>`
  Georectified.`getCheckPoints()`
  Geographic references used to validate georectification of the data.
  `Collection<? extends GCP>`
  GCPCollection.`getGCPs()`
  Ground control point(s) used in the collection.