org.geotools.referencing.crs
Class DefaultProjectedCRS

Object
  Formattable
      AbstractIdentifiedObject
          AbstractReferenceSystem
              AbstractCRS
                  AbstractSingleCRS
                      AbstractDerivedCRS
                          DefaultProjectedCRS

All Implemented Interfaces:

Serializable, CoordinateReferenceSystem, GeneralDerivedCRS, ProjectedCRS, SingleCRS, IdentifiedObject, ReferenceSystem

public class DefaultProjectedCRS
extends AbstractDerivedCRS
implements ProjectedCRS

A 2D coordinate reference system used to approximate the shape of the earth on a planar surface. It is done in such a way that the distortion that is inherent to the approximation is carefully controlled and known. Distortion correction is commonly applied to calculated bearings and distances to produce values that are a close match to actual field values.

Used with CS type(s)

Cartesian

Since:

2.1

Author:

Martin Desruisseaux (IRD)

See Also:

Serialized Form

Field Summary

Fields inherited from class AbstractDerivedCRS

_COMPARING, baseCRS, CONVERSION_TYPE_KEY, conversionFromBase

Fields inherited from class AbstractSingleCRS

datum

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

DefaultProjectedCRS(Map<String,?> properties, Conversion conversionFromBase, GeographicCRS base, MathTransform baseToDerived, CartesianCS derivedCS)
Constructs a projected CRS from a defining conversion.

DefaultProjectedCRS(Map<String,?> properties, GeographicCRS base, MathTransform baseToDerived, CartesianCS derivedCS)
Constructs a projected CRS from a set of properties.

DefaultProjectedCRS(Map<String,?> properties, OperationMethod method, GeographicCRS base, MathTransform baseToDerived, CartesianCS derivedCS)
Deprecated. Create explicitly a DefiningConversion instead.

DefaultProjectedCRS(ProjectedCRS crs)
Constructs a new projected CRS with the same values than the specified one.

DefaultProjectedCRS(String name, GeographicCRS base, MathTransform baseToDerived, CartesianCS derivedCS)
Constructs a projected CRS from a name.

Method Summary

protected String	formatWKT(Formatter formatter) Format the inner part of a Well Known Text (WKT) element.
GeographicCRS	getBaseCRS() Returns the base coordinate reference system, which must be geographic.
Projection	getConversionFromBase() Returns the map projection from the base CRS to this CRS.
CartesianCS	getCoordinateSystem() Returns the coordinate system.
GeodeticDatum	getDatum() Returns the datum.
int	hashCode() Returns a hash value for this projected CRS.

Methods inherited from class AbstractDerivedCRS

equals

Methods inherited from class AbstractSingleCRS

getAxis, getDimension

Methods inherited from class AbstractCRS

distance

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, toWKT

Methods inherited from class Object

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

Methods inherited from interface ReferenceSystem

getDomainOfValidity, getScope

Methods inherited from interface IdentifiedObject

getAlias, getIdentifiers, getName, getRemarks, toWKT

Constructor Detail

DefaultProjectedCRS

public DefaultProjectedCRS(ProjectedCRS crs)

Constructs a new projected 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

DefaultProjectedCRS

public DefaultProjectedCRS(String name,
                           GeographicCRS base,
                           MathTransform baseToDerived,
                           CartesianCS derivedCS)
                    throws MismatchedDimensionException

Constructs a projected CRS from a name. A default operation method is inferred from the math transform. This is a convenience constructor that is not garanteed to work reliably for non-GeoTools implementations. Use the constructor expecting a defining conversion for more determinist result.

Parameters:

name - The name.

base - Coordinate reference system to base the derived CRS on.

baseToDerived - The transform from the base CRS to returned CRS.

derivedCS - The coordinate system for the derived CRS. The number of axes must match the target dimension of the transform baseToDerived.

Throws:

MismatchedDimensionException - if the source and target dimension of baseToDeviced don't match the dimension of base and derivedCS respectively.

Since:

2.5

DefaultProjectedCRS

public DefaultProjectedCRS(Map<String,?> properties,
                           GeographicCRS base,
                           MathTransform baseToDerived,
                           CartesianCS derivedCS)
                    throws MismatchedDimensionException

Constructs a projected CRS from a set of properties. A default operation method is inferred from the math transform. This is a convenience constructor that is not garanteed to work reliably for non-GeoTools implementations. Use the constructor expecting a defining conversion for more determinist result.

The properties are given unchanged to the super-class constructor.

Parameters:

properties - Name and other properties to give to the new derived CRS object and to the underlying projection.

base - Coordinate reference system to base the derived CRS on.

baseToDerived - The transform from the base CRS to returned CRS.

derivedCS - The coordinate system for the derived CRS. The number of axes must match the target dimension of the transform baseToDerived.

Throws:

MismatchedDimensionException - if the source and target dimension of baseToDeviced don't match the dimension of base and derivedCS respectively.

Since:

2.5

DefaultProjectedCRS

public DefaultProjectedCRS(Map<String,?> properties,
                           OperationMethod method,
                           GeographicCRS base,
                           MathTransform baseToDerived,
                           CartesianCS derivedCS)
                    throws MismatchedDimensionException

Deprecated. Create explicitly a DefiningConversion instead.

Constructs a projected CRS from a set of properties. The properties are given unchanged to the super-class constructor.

Parameters:

properties - Name and other properties to give to the new derived CRS object and to the underlying projection.

method - A description of the method for the conversion.

base - Coordinate reference system to base the derived CRS on.

baseToDerived - The transform from the base CRS to returned CRS.

derivedCS - The coordinate system for the derived CRS. The number of axes must match the target dimension of the transform baseToDerived.

Throws:

MismatchedDimensionException - if the source and target dimension of baseToDeviced don't match the dimension of base and derivedCS respectively.

DefaultProjectedCRS

public DefaultProjectedCRS(Map<String,?> properties,
                           Conversion conversionFromBase,
                           GeographicCRS base,
                           MathTransform baseToDerived,
                           CartesianCS derivedCS)
                    throws MismatchedDimensionException

Constructs a projected CRS from a defining conversion. The properties are given unchanged to the super-class constructor.

Parameters:

properties - Name and other properties to give to the new projected CRS object.

conversionFromBase - The defining conversion.

base - Coordinate reference system to base the projected CRS on.

baseToDerived - The transform from the base CRS to returned CRS.

derivedCS - The coordinate system for the projected CRS. The number of axes must match the target dimension of the transform baseToDerived.

Throws:

MismatchedDimensionException - if the source and target dimension of baseToDerived don't match the dimension of base and derivedCS respectively.

Method Detail

getCoordinateSystem

public CartesianCS getCoordinateSystem()

Returns the coordinate system.

Specified by:

getCoordinateSystem in interface CoordinateReferenceSystem

Specified by:

getCoordinateSystem in interface ProjectedCRS

Specified by:

getCoordinateSystem in interface SingleCRS

Overrides:

getCoordinateSystem in class AbstractCRS

Returns:

The coordinate system.

getDatum

public GeodeticDatum getDatum()

Returns the datum.

Specified by:

getDatum in interface ProjectedCRS

Specified by:

getDatum in interface SingleCRS

Overrides:

getDatum in class AbstractSingleCRS

Returns:

The datum.

getBaseCRS

public GeographicCRS getBaseCRS()

Returns the base coordinate reference system, which must be geographic.

Specified by:

getBaseCRS in interface GeneralDerivedCRS

Specified by:

getBaseCRS in interface ProjectedCRS

Overrides:

getBaseCRS in class AbstractDerivedCRS

Returns:

The base CRS.

getConversionFromBase

public Projection getConversionFromBase()

Returns the map projection from the base CRS to this CRS.

Specified by:

getConversionFromBase in interface GeneralDerivedCRS

Specified by:

getConversionFromBase in interface ProjectedCRS

Overrides:

getConversionFromBase in class AbstractDerivedCRS

Returns:

The map projection from base CRS to this CRS.

hashCode

public int hashCode()

Returns a hash value for this projected CRS.

Overrides:

hashCode in class AbstractDerivedCRS

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 AbstractDerivedCRS

Parameters:

formatter - The formatter to use.

Returns:

The name of the WKT element type, which is "PROJCS".

See Also:

Formattable.toWKT(), Formattable.toString()