org.geotools.referencing.crs
Class DefaultCompoundCRS

Object
  extended by Formattable
      extended by AbstractIdentifiedObject
          extended by AbstractReferenceSystem
              extended by AbstractCRS
                  extended by DefaultCompoundCRS
All Implemented Interfaces:
Serializable, CompoundCRS, CoordinateReferenceSystem, IdentifiedObject, ReferenceSystem

public class DefaultCompoundCRS
extends AbstractCRS
implements CompoundCRS

A coordinate reference system describing the position of points through two or more independent coordinate reference systems. Thus it is associated with two or more coordinate systems and datums by defining the compound CRS as an ordered set of two or more instances of CoordinateReferenceSystem.

Since:
2.1
Author:
Martin Desruisseaux (IRD)
See Also:
Serialized Form
Module:
modules/library/referencing (gt-referencing.jar)

Field Summary
 
Fields inherited from class AbstractCRS
coordinateSystem
 
Fields inherited from class AbstractIdentifiedObject
EMPTY_ALIAS_ARRAY, EMPTY_IDENTIFIER_ARRAY, IDENTIFIER_COMPARATOR, NAME_COMPARATOR, REMARKS_COMPARATOR
 
Fields inherited from class Formattable
SINGLE_LINE
 
Fields inherited from interface ReferenceSystem
DOMAIN_OF_VALIDITY_KEY, SCOPE_KEY
 
Fields inherited from interface IdentifiedObject
ALIAS_KEY, IDENTIFIERS_KEY, NAME_KEY, REMARKS_KEY
 
Constructor Summary
DefaultCompoundCRS(CompoundCRS crs)
          Constructs a new compound CRS with the same values than the specified one.
DefaultCompoundCRS(Map<String,?> properties, CoordinateReferenceSystem[] crs)
          Constructs a coordinate reference system from a set of properties.
DefaultCompoundCRS(String name, CoordinateReferenceSystem[] crs)
          Constructs a coordinate reference system from a name.
DefaultCompoundCRS(String name, CoordinateReferenceSystem head, CoordinateReferenceSystem tail)
          Constructs a coordinate reference system from a name and two CRS.
DefaultCompoundCRS(String name, CoordinateReferenceSystem head, CoordinateReferenceSystem middle, CoordinateReferenceSystem tail)
          Constructs a coordinate reference system from a name and three CRS.
 
Method Summary
 boolean equals(AbstractIdentifiedObject object, boolean compareMetadata)
          Compares this coordinate reference system with the specified object for equality.
protected  String formatWKT(Formatter formatter)
          Format the inner part of a Well Known Text (WKT) element.
 List<CoordinateReferenceSystem> getCoordinateReferenceSystems()
          The ordered list of coordinate reference systems.
 List<SingleCRS> getSingleCRS()
          Returns the ordered list of single coordinate reference systems.
static List<SingleCRS> getSingleCRS(CoordinateReferenceSystem crs)
          Returns the ordered list of single coordinate reference systems for the specified CRS.
 int hashCode()
          Returns a hash value for this compound CRS.
 
Methods inherited from class AbstractCRS
distance, getCoordinateSystem
 
Methods inherited from class AbstractReferenceSystem
getDomainOfValidity, getScope, getValidArea
 
Methods inherited from class AbstractIdentifiedObject
asSet, ensureAngularUnit, ensureLinearUnit, ensureNonNull, ensureNonNull, ensureTimeUnit, equals, equals, equals, equals, getAlias, getIdentifier, getIdentifier, getIdentifiers, getName, getName, getName, getProperties, getProperties, getRemarks, nameMatches, nameMatches, nameMatches
 
Methods inherited from class Formattable
cleanupThreadLocals, toString, toWKT, toWKT, toWKT
 
Methods inherited from class Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface CoordinateReferenceSystem
getCoordinateSystem
 
Methods inherited from interface ReferenceSystem
getDomainOfValidity, getScope
 
Methods inherited from interface IdentifiedObject
getAlias, getIdentifiers, getName, getRemarks, toWKT
 

Constructor Detail

DefaultCompoundCRS

public DefaultCompoundCRS(CompoundCRS crs)
Constructs a new compound CRS with the same values than the specified one. This copy constructor provides a way to wrap an arbitrary implementation into a Geotools 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.
Since:
2.2

DefaultCompoundCRS

public DefaultCompoundCRS(String name,
                          CoordinateReferenceSystem head,
                          CoordinateReferenceSystem tail)
Constructs a coordinate reference system from a name and two CRS.

Parameters:
name - The name.
head - The head CRS.
tail - The tail CRS.

DefaultCompoundCRS

public DefaultCompoundCRS(String name,
                          CoordinateReferenceSystem head,
                          CoordinateReferenceSystem middle,
                          CoordinateReferenceSystem tail)
Constructs a coordinate reference system from a name and three CRS.

Parameters:
name - The name.
head - The head CRS.
middle - The middle CRS.
tail - The tail CRS.

DefaultCompoundCRS

public DefaultCompoundCRS(String name,
                          CoordinateReferenceSystem[] crs)
Constructs a coordinate reference system from a name.

Parameters:
name - The name.
crs - The array of coordinate reference system making this compound CRS.

DefaultCompoundCRS

public DefaultCompoundCRS(Map<String,?> properties,
                          CoordinateReferenceSystem[] crs)
Constructs a coordinate reference system from a set of properties. The properties are given unchanged to the super-class constructor.

Parameters:
properties - Set of properties. Should contains at least "name".
crs - The array of coordinate reference system making this compound CRS.
Method Detail

getCoordinateReferenceSystems

public List<CoordinateReferenceSystem> getCoordinateReferenceSystems()
The ordered list of coordinate reference systems.

Specified by:
getCoordinateReferenceSystems in interface CompoundCRS
Returns:
The coordinate reference systems as an unmodifiable list.

getSingleCRS

public List<SingleCRS> getSingleCRS()
Returns the ordered list of single coordinate reference systems. If this compound CRS contains other compound CRS, all of them are expanded in an array of SingleCRS objects.

Returns:
The single coordinate reference systems as an unmodifiable list.

getSingleCRS

public static List<SingleCRS> getSingleCRS(CoordinateReferenceSystem crs)
Returns the ordered list of single coordinate reference systems for the specified CRS. The specified CRS doesn't need to be a Geotools implementation.

Parameters:
crs - The coordinate reference system.
Returns:
The single coordinate reference systems.
Throws:
ClassCastException - if a CRS is neither a SingleCRS or a CompoundCRS.

equals

public boolean equals(AbstractIdentifiedObject object,
                      boolean compareMetadata)
Compares this coordinate reference system with the specified object for equality.

Overrides:
equals in class AbstractCRS
Parameters:
object - The object to compare to this.
compareMetadata - true for performing a strict comparaison, or false for comparing only properties relevant to transformations.
Returns:
true if both objects are equal.

hashCode

public int hashCode()
Returns a hash value for this compound CRS.

Overrides:
hashCode in class AbstractCRS
Returns:
The hash code value. This value doesn't need to be the same in past or future versions of this class.

formatWKT

protected String formatWKT(Formatter formatter)
Format the inner part of a Well Known Text (WKT) element.

Overrides:
formatWKT in class AbstractCRS
Parameters:
formatter - The formatter to use.
Returns:
The name of the WKT element type, which is "COMPD_CS".
See Also:
Formattable.toWKT(), Formattable.toString()


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