org.geotools.referencing.operation.projection
Class MapProjection.AbstractProvider

java.lang.Object
  org.geotools.referencing.wkt.Formattable
      org.geotools.referencing.AbstractIdentifiedObject
          org.geotools.referencing.operation.DefaultOperationMethod
              org.geotools.referencing.operation.MathTransformProvider
                  org.geotools.referencing.operation.projection.MapProjection.AbstractProvider

All Implemented Interfaces:

org.opengis.referencing.IdentifiedObject, org.opengis.referencing.operation.OperationMethod, java.io.Serializable

Direct Known Subclasses:

AlbersEqualArea.Provider, EquidistantCylindrical.Provider, LambertConformal1SP.Provider, LambertConformal2SP.Provider, LambertConformalBelgium.Provider, LambertConformalESRI.Provider, Mercator1SP.Provider, Mercator2SP.Provider, NewZealandMapGrid.Provider, ObliqueMercator.Provider, Orthographic.Provider, PlateCarree.Provider, Stereographic.Provider_Oblique, Stereographic.Provider_Polar_A, Stereographic.Provider_Polar_B, Stereographic.Provider_USGS, TransverseMercator.Provider

Enclosing class:

MapProjection

public abstract static class MapProjection.AbstractProvider

extends MathTransformProvider

The base provider for MapProjections.

Version:

$Id: MapProjection.java 17587 2006-01-13 03:43:41Z desruisseaux $

Author:

Martin Desruisseaux

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class org.geotools.referencing.operation.MathTransformProvider

MathTransformProvider.Delegate

Field Summary

static org.opengis.parameter.ParameterDescriptor	CENTRAL_MERIDIAN The operation parameter descriptor for the central meridian parameter value.
static org.opengis.parameter.ParameterDescriptor	FALSE_EASTING The operation parameter descriptor for the falseEasting parameter value.
static org.opengis.parameter.ParameterDescriptor	FALSE_NORTHING The operation parameter descriptor for the falseNorthing parameter value.
static org.opengis.parameter.ParameterDescriptor	LATITUDE_OF_ORIGIN The operation parameter descriptor for the latitude of origin parameter value.
static org.opengis.parameter.ParameterDescriptor	SCALE_FACTOR The operation parameter descriptor for the scaleFactor parameter value.
static org.opengis.parameter.ParameterDescriptor	SEMI_MAJOR The operation parameter descriptor for the semi major parameter value.
static org.opengis.parameter.ParameterDescriptor	SEMI_MINOR The operation parameter descriptor for the semi minor parameter value.
static org.opengis.parameter.ParameterDescriptor	STANDARD_PARALLEL The operation parameter descriptor for the standard parallel parameter value.
static org.opengis.parameter.ParameterDescriptor	STANDARD_PARALLEL_1 The operation parameter descriptor for the standard parallel 1 parameter value.
static org.opengis.parameter.ParameterDescriptor	STANDARD_PARALLEL_2 The operation parameter descriptor for the standard parallel 2 parameter value.

Fields inherited from class org.geotools.referencing.operation.DefaultOperationMethod

sourceDimensions, targetDimensions

Fields inherited from class org.geotools.referencing.AbstractIdentifiedObject

EMPTY_ALIAS_ARRAY, EMPTY_IDENTIFIER_ARRAY, IDENTIFIER_COMPARATOR, NAME_COMPARATOR, REMARKS_COMPARATOR

Fields inherited from interface org.opengis.referencing.operation.OperationMethod

FORMULA_KEY

Fields inherited from interface org.opengis.referencing.IdentifiedObject

ALIAS_KEY, IDENTIFIERS_KEY, NAME_KEY, REMARKS_KEY

Constructor Summary

MapProjection.AbstractProvider(org.opengis.parameter.ParameterDescriptorGroup parameters)
Constructs a math transform provider from a set of parameters.

Method Summary

protected static double	doubleValue(org.opengis.parameter.ParameterDescriptor param, org.opengis.parameter.ParameterValueGroup group) Returns the parameter value for the specified operation parameter in standard units.
protected java.lang.Class	getOperationType() Returns the operation type for this map projection.

Methods inherited from class org.geotools.referencing.operation.MathTransformProvider

createDescriptor, createDescriptorGroup, createMathTransform, createOptionalDescriptor, ensureValidValues, formatWKT, intValue, stringValue, value

Methods inherited from class org.geotools.referencing.operation.DefaultOperationMethod

checkDimensions, equals, getFormula, getParameters, getSourceDimensions, getTargetDimensions, hashCode

Methods inherited from class org.geotools.referencing.AbstractIdentifiedObject

asSet, ensureAngularUnit, ensureLinearUnit, ensureNonNull, ensureNonNull, ensureTimeUnit, equals, equals, equals, equals, getAlias, getIdentifier, getIdentifier, getIdentifiers, getName, getName, getName, getProperties, getProperties, getRemarks, nameMatches, nameMatches

Methods inherited from class org.geotools.referencing.wkt.Formattable

toString, toWKT, toWKT, toWKT

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.opengis.referencing.IdentifiedObject

getAlias, getIdentifiers, getName, getRemarks, toWKT

Field Detail

SEMI_MAJOR

public static final org.opengis.parameter.ParameterDescriptor SEMI_MAJOR

The operation parameter descriptor for the semi major parameter value. Valid values range is from 0 to infinity. This parameter is mandatory.

To Do:

Would like to start range from 0 exclusive.

SEMI_MINOR

public static final org.opengis.parameter.ParameterDescriptor SEMI_MINOR

The operation parameter descriptor for the semi minor parameter value. Valid values range is from 0 to infinity. This parameter is mandatory.

To Do:

Would like to start range from 0 exclusive.

CENTRAL_MERIDIAN

public static final org.opengis.parameter.ParameterDescriptor CENTRAL_MERIDIAN

The operation parameter descriptor for the central meridian parameter value. Valid values range is from -180 to 180?. Default value is 0.

LATITUDE_OF_ORIGIN

public static final org.opengis.parameter.ParameterDescriptor LATITUDE_OF_ORIGIN

The operation parameter descriptor for the latitude of origin parameter value. Valid values range is from -90 to 90?. Default value is 0.

STANDARD_PARALLEL

public static final org.opengis.parameter.ParameterDescriptor STANDARD_PARALLEL

The operation parameter descriptor for the standard parallel parameter value. Valid values range is from -90 to 90?. Default value is 0.

STANDARD_PARALLEL_1

public static final org.opengis.parameter.ParameterDescriptor STANDARD_PARALLEL_1

The operation parameter descriptor for the standard parallel 1 parameter value. Valid values range is from -90 to 90?. Default value is 0.

STANDARD_PARALLEL_2

public static final org.opengis.parameter.ParameterDescriptor STANDARD_PARALLEL_2

The operation parameter descriptor for the standard parallel 2 parameter value. Valid values range is from -90 to 90?. Default value is 0.

SCALE_FACTOR

public static final org.opengis.parameter.ParameterDescriptor SCALE_FACTOR

The operation parameter descriptor for the scaleFactor parameter value. Valid values range is from 0 to infinity. Default value is 1.

To Do:

Would like to start range from 0 exclusive.

FALSE_EASTING

public static final org.opengis.parameter.ParameterDescriptor FALSE_EASTING

The operation parameter descriptor for the falseEasting parameter value. Valid values range is unrestricted. Default value is 0.

FALSE_NORTHING

public static final org.opengis.parameter.ParameterDescriptor FALSE_NORTHING

The operation parameter descriptor for the falseNorthing parameter value. Valid values range is unrestricted. Default value is 0.

Constructor Detail

MapProjection.AbstractProvider

public MapProjection.AbstractProvider(org.opengis.parameter.ParameterDescriptorGroup parameters)

Constructs a math transform provider from a set of parameters. The provider identifiers will be the same than the parameter ones.

Parameters:

parameters - The set of parameters (never ).

Method Detail

getOperationType

protected java.lang.Class getOperationType()

Returns the operation type for this map projection.

Overrides:

getOperationType in class MathTransformProvider

doubleValue

protected static double doubleValue(org.opengis.parameter.ParameterDescriptor param,
                                    org.opengis.parameter.ParameterValueGroup group)
                             throws org.opengis.parameter.ParameterNotFoundException

Returns the parameter value for the specified operation parameter in standard units. Values are automatically converted into the standard units specified by the supplied argument, except degrees which are converted to radians. This conversion is performed because the radians units are standard for all internal computations in the map projection package. For example they are the standard units for latitudeOfOrigin and centralMeridian fields in the MapProjection class.

Parameters:

param - The parameter to look for.

group - The parameter value group to search into.

Returns:

The requested parameter value.

Throws:

org.opengis.parameter.ParameterNotFoundException - if the parameter is not found.