Object
- Formattable
- - AbstractIdentifiedObject
  - - DefaultOperationMethod
    - - MathTransformProvider
      - AbstractProvider

All Implemented Interfaces:

Serializable, IdentifiedObject, OperationMethod, PROJFormattable

Direct Known Subclasses:

AlbersEqualArea.Provider, AzimuthalEquidistant.Provider, CassiniSoldner.Provider, CylindricalEqualArea.BehrmannProvider, CylindricalEqualArea.LambertCylindricalEqualAreaProvider, CylindricalEqualArea.Provider, EckertIV.Provider, EqualArea.Provider, EquidistantConic.Provider, EquidistantCylindrical.Provider, EquidistantCylindrical.SphericalProvider, GeneralOblique.Provider, GeostationarySatellite.Provider, Gnomonic.Provider, Homolosine.Provider, Krovak.NorthProvider, Krovak.Provider, LambertAzimuthalEqualArea.Provider, LambertConformal1SP.Provider, LambertConformal2SP.Provider, LambertConformalBelgium.Provider, LambertConformalEsriProvider, Mercator1SP.Provider, Mercator2SP.Provider, MercatorPseudoProvider, MeteosatSG.Provider, Mollweide.MollweideProvider, Mollweide.WagnerIVProvider, Mollweide.WagnerVProvider, NewZealandMapGrid.Provider, ObliqueMercator.Provider, Orthographic.Provider, PlateCarree.Provider, Polyconic.Provider, Robinson.Provider, RotatedPole.Provider, Sinusoidal.Provider, Stereographic.Provider, TransverseMercator.Provider, WinkelTripel.AitoffProvider, WinkelTripel.WinkelProvider, WorldVanDerGrintenI.Provider

Enclosing class:

MapProjection
```
public abstract static class MapProjection.AbstractProvider
extends MathTransformProvider
```
The base provider for MapProjections.

Author:

Martin Desruisseaux (PMO, IRD)

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from class MathTransformProvider
  MathTransformProvider.Delegate

Field Summary

Fields
Modifier and Type	Field	Description
`static ParameterDescriptor<Double>`	`CENTRAL_MERIDIAN`	The operation parameter descriptor for the central meridian parameter value.
`static ParameterDescriptor<Double>`	`FALSE_EASTING`	The operation parameter descriptor for the `falseEasting` parameter value.
`static ParameterDescriptor<Double>`	`FALSE_NORTHING`	The operation parameter descriptor for the `falseNorthing` parameter value.
`static ParameterDescriptor<Double>`	`LATITUDE_OF_CENTRE`	The operation parameter descriptor for the latitude of center parameter value.
`static ParameterDescriptor<Double>`	`LATITUDE_OF_ORIGIN`	The operation parameter descriptor for the latitude of origin parameter value.
`static ParameterDescriptor<Double>`	`LONGITUDE_OF_CENTRE`	The operation parameter descriptor for the longitude of center parameter value.
`static ParameterDescriptor<Double>`	`SCALE_FACTOR`	The operation parameter descriptor for the `scaleFactor` parameter value.
`static ParameterDescriptor<Double>`	`SEMI_MAJOR`	The operation parameter descriptor for the semi major parameter value.
`static ParameterDescriptor<Double>`	`SEMI_MINOR`	The operation parameter descriptor for the semi minor parameter value.
`static ParameterDescriptor<Double>`	`STANDARD_PARALLEL_1`	The operation parameter descriptor for the standard parallel 1 parameter value.
`static ParameterDescriptor<Double>`	`STANDARD_PARALLEL_2`	The operation parameter descriptor for the standard parallel 2 parameter value.

Fields inherited from class DefaultOperationMethod
sourceDimensions, targetDimensions

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 IdentifiedObject
ALIAS_KEY, IDENTIFIERS_KEY, NAME_KEY, REMARKS_KEY

Fields inherited from interface OperationMethod
FORMULA_KEY

Constructor Summary

Constructors
Constructor Description

AbstractProvider(ParameterDescriptorGroup parameters)
Constructs a math transform provider from a set of parameters.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected static double`	`doubleValue(ParameterDescriptor param, ParameterValueGroup group)`	Returns the parameter value for the specified operation parameter in standard units.
`Class<? extends Projection>`	`getOperationType()`	Returns the operation type for this map projection.

Methods inherited from class MathTransformProvider
createDescriptor, createDescriptorGroup, createMathTransform, createOptionalDescriptor, ensureValidValues, formatWKT, getParameter, intValue, stringValue, toMap, value

Methods inherited from class DefaultOperationMethod
checkDimensions, equals, formatPROJ, getFormula, getParameters, getSourceDimensions, getTargetDimensions, hashCode

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 IdentifiedObject
getAlias, getIdentifiers, getName, getRemarks, toWKT

- Field Detail
  - SEMI_MAJOR
```
public static final ParameterDescriptor<Double> SEMI_MAJOR
```
    The operation parameter descriptor for the semi major parameter value. Valid values range is from 0 to infinity. This parameter is mandatory.
  - SEMI_MINOR
```
public static final ParameterDescriptor<Double> SEMI_MINOR
```
    The operation parameter descriptor for the semi minor parameter value. Valid values range is from 0 to infinity. This parameter is mandatory.
  - CENTRAL_MERIDIAN
```
public static final ParameterDescriptor<Double> 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 ParameterDescriptor<Double> 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.
  - LONGITUDE_OF_CENTRE
```
public static final ParameterDescriptor<Double> LONGITUDE_OF_CENTRE
```
    The operation parameter descriptor for the longitude of center parameter value. Valid values range is from -180 to 180°. Default value is 0.
  - LATITUDE_OF_CENTRE
```
public static final ParameterDescriptor<Double> LATITUDE_OF_CENTRE
```
    The operation parameter descriptor for the latitude of center parameter value. Valid values range is from -90 to 90°. Default value is 0.
  - STANDARD_PARALLEL_1
```
public static final ParameterDescriptor<Double> 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 ParameterDescriptor<Double> 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 ParameterDescriptor<Double> SCALE_FACTOR
```
    The operation parameter descriptor for the scaleFactor parameter value. Valid values range is from 0 to infinity. Default value is 1.
  - FALSE_EASTING
```
public static final ParameterDescriptor<Double> 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 ParameterDescriptor<Double> FALSE_NORTHING
```
    The operation parameter descriptor for the falseNorthing parameter value. Valid values range is unrestricted. Default value is 0.
- Constructor Detail
  - AbstractProvider
```
public AbstractProvider(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 null).
- Method Detail
  - getOperationType
```
public Class<? extends Projection> getOperationType()
```
    Returns the operation type for this map projection.
    
    Overrides:
    
    getOperationType in class MathTransformProvider
    
    Returns:
    
    The GeoAPI interface implemented by this operation.
  - doubleValue
```
protected static double doubleValue(ParameterDescriptor param,
                                    ParameterValueGroup group)
                             throws 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 param 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:
    
    ParameterNotFoundException - if the parameter is not found.

Class MapProjection.AbstractProvider

Nested Class Summary

Nested classes/interfaces inherited from class MathTransformProvider

Field Summary

Fields inherited from class DefaultOperationMethod

Fields inherited from class AbstractIdentifiedObject

Fields inherited from class Formattable

Fields inherited from interface IdentifiedObject

Fields inherited from interface OperationMethod

Constructor Summary

Method Summary

Methods inherited from class MathTransformProvider

Methods inherited from class DefaultOperationMethod

Methods inherited from class AbstractIdentifiedObject

Methods inherited from class Formattable

Methods inherited from class Object

Methods inherited from interface IdentifiedObject

Field Detail

SEMI_MAJOR

SEMI_MINOR

CENTRAL_MERIDIAN

LATITUDE_OF_ORIGIN

LONGITUDE_OF_CENTRE

LATITUDE_OF_CENTRE

STANDARD_PARALLEL_1

STANDARD_PARALLEL_2

SCALE_FACTOR

FALSE_EASTING

FALSE_NORTHING

Constructor Detail

AbstractProvider

Method Detail

getOperationType

doubleValue