org.geotoolkit.referencing.operation.provider
Class NADCON

Object
  FormattableObject
      AbstractIdentifiedObject
          DefaultOperationMethod
              MathTransformProvider
                  NADCON

All Implemented Interfaces:

Serializable, Formattable, LenientComparable, IdentifiedObject, OperationMethod

@Immutable
public class NADCON
extends MathTransformProvider

The provider for "North American Datum Conversion" (EPSG:9613). The math transform implementations instantiated by this provider may be any of the following classes:

• NadconTransform

Grid data
This transform requires data that are not bundled by default with Geotk. Run the geotk-setup module for downloading and installing the grid data.

Since:

2.1

Version:

3.00

Author:

Rueben Schulz (UBC), Martin Desruisseaux (Geomatys)

See Also:

Serialized Form

Module:

referencing/geotk-referencing (download)

View source code for this class

Field Summary

static ParameterDescriptor<String>	LAT_DIFF_FILE The operation parameter descriptor for the Latitude difference file parameter value.
static ParameterDescriptor<String>	LONG_DIFF_FILE The operation parameter descriptor for the Longitude difference file parameter value.
static ParameterDescriptorGroup	PARAMETERS The parameters group.

Fields inherited from class DefaultOperationMethod

sourceDimension, targetDimension

Fields inherited from class FormattableObject

EPSG, GEOTIFF, INTERNAL, OGC, SINGLE_LINE

Fields inherited from interface OperationMethod

FORMULA_KEY

Fields inherited from interface IdentifiedObject

ALIAS_KEY, IDENTIFIERS_KEY, NAME_KEY, REMARKS_KEY

Constructor Summary

NADCON()
Constructs a provider.

Method Summary

protected MathTransform	createMathTransform(ParameterValueGroup values) Creates a math transform from the specified group of parameter values.
Class<Transformation>	getOperationType() Returns the operation type.
static boolean	isAvailable() Returns true if the NADCON data seem to be present.

Methods inherited from class MathTransformProvider

ensureValidValues, formatWKT

Methods inherited from class DefaultOperationMethod

checkDimensions, computeHashCode, equals, getFormula, getParameters, getSourceDimensions, getTargetDimensions

Methods inherited from class AbstractIdentifiedObject

equals, getAlias, getIdentifier, getIdentifiers, getName, getName, getRemarks, hashCode, nameMatches

Methods inherited from class FormattableObject

getDefaultIndentation, print, setDefaultIndentation, toString, 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

LAT_DIFF_FILE

public static final ParameterDescriptor<String> LAT_DIFF_FILE

The operation parameter descriptor for the Latitude difference file parameter value. The default value is "conus.las".

LONG_DIFF_FILE

public static final ParameterDescriptor<String> LONG_DIFF_FILE

The operation parameter descriptor for the Longitude difference file parameter value. The default value is "conus.los".

PARAMETERS

public static final ParameterDescriptorGroup PARAMETERS

The parameters group.

Constructor Detail

NADCON

public NADCON()

Constructs a provider.

Method Detail

isAvailable

public static boolean isAvailable()

Returns true if the NADCON data seem to be present. This method checks for the existence of "conus.las" and "conus.los" (continental United States) files, using the same search criterion than the one applied by the transform constructor.

Some optional data can be automatically downloaded and installed by running the geotk-setup module.

Returns:

true if NADCON data seem to be present.

getOperationType

public Class<Transformation> getOperationType()

Returns the operation type.

Overrides:

getOperationType in class MathTransformProvider

Returns:

The GeoAPI interface implemented by this operation.

createMathTransform

protected MathTransform createMathTransform(ParameterValueGroup values)
                                     throws FactoryException

Creates a math transform from the specified group of parameter values.

Specified by:

createMathTransform in class MathTransformProvider

Parameters:

values - The group of parameter values.

Returns:

The created math transform.

Throws:

FactoryException - If the grid files can not be loaded.