Module org.apache.sis.referencing

Package org.apache.sis.referencing.crs

Class DefaultImageCRS

Object

FormattableObject

AbstractIdentifiedObject

AbstractReferenceSystem

AbstractCRS

DefaultImageCRS

All Implemented Interfaces:

Serializable, Formattable, Deprecable, Lenient­Comparable, Coordinate­Reference­System, Image­CRS, Single­CRS, Identified­Object, Reference­System

public class DefaultImageCRS
extends AbstractCRS
implements ImageCRS

A 2-dimensional engineering coordinate reference system applied to locations in images. Image coordinate reference systems are treated as a separate sub-type because a separate user community exists for images with its own terms of reference.

Used with datum type: Image.
Used with coordinate system types: Cartesian or Affine.

Immutability and thread safety

This class is immutable and thus thread-safe if the property values (not necessarily the map itself), the coordinate system and the datum instances given to the constructor are also immutable. Unless otherwise noted in the javadoc, this condition holds if all components were created using only SIS factories and static constants.

Since:

0.4

See Also:

• Default­Image­Datum
• Geodetic­Authority­Factory.create­Image­CRS(String)
• Serialized Form

Field Summary

Fields inherited from class AbstractIdentifiedObject

DEPRECATED_KEY, LOCALE_KEY

Fields inherited from interface IdentifiedObject

ALIAS_KEY, IDENTIFIERS_KEY, NAME_KEY, REMARKS_KEY

Fields inherited from interface ReferenceSystem

DOMAIN_OF_VALIDITY_KEY, SCOPE_KEY

Constructor Summary

Constructors

Modifier	Constructor	Description
	Default­Image­CRS(Map<String,?> properties, Image­Datum datum, Affine­CS cs)	Creates a coordinate reference system from the given properties, datum and coordinate system.
protected	Default­Image­CRS(Image­CRS crs)	Constructs a new coordinate reference system with the same values than the specified one.

Method Summary

Modifier and Type	Method	Description
static Default­Image­CRS	cast­Or­Copy(Image­CRS object)	Returns a SIS coordinate reference system implementation with the same values than the given arbitrary implementation.
Default­Image­CRS	for­Convention(Axes­Convention convention)	Returns a coordinate reference system equivalent to this one but with axes rearranged according the given convention.
protected String	format­To(Formatter formatter)	Formats this CRS as a Well Known Text Image­CRS[…] element.
Affine­CS	get­Coordinate­System()	Returns the coordinate system.
Image­Datum	get­Datum()	Returns the datum.
Class<? extends Image­CRS>	get­Interface()	Returns the GeoAPI interface implemented by this class.

Methods inherited from class AbstractCRS

cast­Or­Copy, compute­Hash­Code, equals

Methods inherited from class AbstractReferenceSystem

get­Domain­Of­Validity, get­Scope

Methods inherited from class AbstractIdentifiedObject

cast­Or­Copy, equals, format­To, get­Alias, get­Description, get­Domains, get­Identifiers, get­Name, get­Remarks, hash­Code, is­Deprecated, is­Heuristic­Match­For­Name

Methods inherited from class FormattableObject

print, to­String, to­String, to­WKT

Methods inherited from class Object

clone, finalize, get­Class, notify, notify­All, wait, wait, wait

Methods inherited from interface IdentifiedObject

get­Alias, get­Identifiers, get­Name, get­Remarks, to­WKT

Methods inherited from interface ReferenceSystem

get­Domain­Of­Validity, get­Scope

Constructor Details

DefaultImageCRS

public DefaultImageCRS(Map<String,?> properties,
 ImageDatum datum,
 AffineCS cs)

Creates a coordinate reference system from the given properties, datum and coordinate system. The properties given in argument follow the same rules than for the super-class constructor. The following table is a reminder of main (not all) properties:

Recognized properties (non exhaustive list)

Property name	Value type	Returned by
"name"	ReferenceIdentifier or String	AbstractIdentifiedObject.getName()
"alias"	GenericName or Char­Sequence (optionally as array)	AbstractIdentifiedObject.getAlias()
"identifiers"	ReferenceIdentifier (optionally as array)	AbstractIdentifiedObject.getIdentifiers()
"domains"	DefaultObjectDomain (optionally as array)	AbstractIdentifiedObject.getDomains()
"remarks"	InternationalString or String	AbstractIdentifiedObject.getRemarks()

Parameters:

properties - the properties to be given to the coordinate reference system.

datum - the datum.

cs - the coordinate system.

See Also:

• Geodetic­Object­Factory.create­Image­CRS(Map, Image­Datum, Affine­CS)

DefaultImageCRS

protected DefaultImageCRS(ImageCRS crs)

Constructs a new coordinate reference system with the same values than the specified one. This copy constructor provides a way to convert an arbitrary implementation into a SIS one or a user-defined one (as a subclass), usually in order to leverage some implementation-specific API.

This constructor performs a shallow copy, i.e. the properties are not cloned.

Parameters:

crs - the coordinate reference system to copy.

See Also:

• cast­Or­Copy(Image­CRS)

Method Details

castOrCopy

public static DefaultImageCRS castOrCopy(ImageCRS object)

Returns a SIS coordinate reference system implementation with the same values than the given arbitrary implementation. If the given object is null, then this method returns null. Otherwise if the given object is already a SIS implementation, then the given object is returned unchanged. Otherwise a new SIS implementation is created and initialized to the attribute values of the given object.

Parameters:

object - the object to get as a SIS implementation, or null if none.

Returns:

a SIS implementation containing the values of the given object (may be the given object itself), or null if the argument was null.

getInterface

public Class<? extends ImageCRS> getInterface()

Returns the GeoAPI interface implemented by this class. The SIS implementation returns Image­CRS.class.

Note for implementers

Subclasses usually do not need to override this method since GeoAPI does not define Image­CRS sub-interface. Overriding possibility is left mostly for implementers who wish to extend GeoAPI with their own set of interfaces.

Overrides:

get­Interface in class Abstract­CRS

Returns:

Image­CRS.class or a user-defined sub-interface.

getDatum

public ImageDatum getDatum()

Returns the datum.

Specified by:

get­Datum in interface Image­CRS

Specified by:

get­Datum in interface Single­CRS

Returns:

the datum.

getCoordinateSystem

public AffineCS getCoordinateSystem()

Returns the coordinate system.

Specified by:

get­Coordinate­System in interface Coordinate­Reference­System

Specified by:

get­Coordinate­System in interface Image­CRS

Specified by:

get­Coordinate­System in interface Single­CRS

Overrides:

get­Coordinate­System in class Abstract­CRS

Returns:

the coordinate system.

forConvention

public DefaultImageCRS forConvention(AxesConvention convention)

Returns a coordinate reference system equivalent to this one but with axes rearranged according the given convention. If this CRS is already compatible with the given convention, then this method returns this.

Overrides:

for­Convention in class Abstract­CRS

Parameters:

convention - the axes convention for which a coordinate reference system is desired.

Returns:

a coordinate reference system compatible with the given convention (may be this).

See Also:

• Abstract­CS.for­Convention(Axes­Convention)

formatTo

protected String formatTo(Formatter formatter)

Formats this CRS as a Well Known Text Image­CRS[…] element.

Compatibility note

Image­CRS are defined in the WKT 2 specification only.

Overrides:

format­To in class Abstract­CRS

Parameters:

formatter - the formatter where to format the inner content of this WKT element.

Returns:

"Image­CRS".

See Also:

• WKT 2 specification §12