Package org.geotools.gce.imagemosaic

Class FootprintsTransformation

Object

ExpressionAbstract

FunctionImpl

FootprintsTransformation

All Implemented Interfaces:

Expression, Function, CoverageReadingTransformation, RenderingTransformation

public class FootprintsTransformation
extends FunctionImpl
implements CoverageReadingTransformation

Transformation returning the same granules that the StructuredGridCoverage2DReader would have used as the input for image creation in the GridCoverage2DReader.read(GeneralParameterValue[]) method (with some exceptions, like footprints usage, as this transformation only sets up a filter against the associated GranuleSource).

Nested Class Summary

Nested classes/interfaces inherited from interface CoverageReadingTransformation

CoverageReadingTransformation.ReaderAndParams

Field Summary

Fields

Modifier and Type	Field	Description
static FunctionName	NAME

Fields inherited from class FunctionImpl

functionName

Fields inherited from interface Expression

NIL

Constructor Summary

Constructors

Constructor	Description
FootprintsTransformation()

Method Summary

Modifier and Type	Method	Description
SimpleFeatureCollection	evaluate(Object object)	Default implementation simply returns the fallbackValue.
GridGeometry	invertGridGeometry(Query targetQuery, GridGeometry targetGridGeometry)	Given a target query and a target grid geometry returns the grid geometry to be used to read the input data of the function involved in rendering.
Query	invertQuery(Query targetQuery, GridGeometry gridGeometry)	Given a target query and a target grid geometry returns the query to be used to read the input data of the function This method will be called only if the input data is a feature collection.

Methods inherited from class FunctionImpl

accept, dispatchArguments, equals, functionName, getFallbackValue, getFunctionName, getName, getParameters, getParameterValue, getParameterValue, hashCode, setFallbackValue, setName, setParameters, toString

Methods inherited from class ExpressionAbstract

evaluate

Methods inherited from class Object

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

Methods inherited from interface Expression

accept, evaluate

Methods inherited from interface Function

getFallbackValue, getFunctionName, getName, getParameters

Methods inherited from interface RenderingTransformation

clipOnRenderingArea, customizeReadParams

Field Details

NAME

public static FunctionName NAME

Constructor Details

FootprintsTransformation

public FootprintsTransformation()

Method Details

evaluate

public SimpleFeatureCollection evaluate(Object object)

Description copied from class: FunctionImpl

Default implementation simply returns the fallbackValue.

Please override this method to produce a value based on the provided arguments.

Specified by:

evaluate in interface Expression

Overrides:

evaluate in class FunctionImpl

Parameters:

object - Object being evaluated; often a Feature

Returns:

value for the provided object

invertQuery

public Query invertQuery(Query targetQuery,
 GridGeometry gridGeometry)

Description copied from interface: RenderingTransformation

Given a target query and a target grid geometry returns the query to be used to read the input data of the function This method will be called only if the input data is a feature collection.

Specified by:

invertQuery in interface RenderingTransformation

Returns:

The transformed query, or null if no inversion is possible/meaningful

invertGridGeometry

public GridGeometry invertGridGeometry(Query targetQuery,
 GridGeometry targetGridGeometry)

Description copied from interface: RenderingTransformation

Given a target query and a target grid geometry returns the grid geometry to be used to read the input data of the function involved in rendering. This method will be called only if the input data is a grid coverage or a grid coverage reader

Specified by:

invertGridGeometry in interface RenderingTransformation

Returns:

The transformed query, or null if no inversion is possible/meaningful