org.geotools.coverage.processing.operation

Class ZonalStats

Object

AbstractOperation

Operation2D

OperationJAI

BaseStatisticsOperationJAI

ZonalStats

All Implemented Interfaces:

Serializable, Operation

public class ZonalStats
extends BaseStatisticsOperationJAI

This operation simply wraps Jai-tools Zonalstats operations described by ZonalStatsDescriptor inside a GeoTools operation in order to make it spatial-aware.

Author:

Andrea Antonello (www.hydrologis.com), Daniele Romagnoli, GeoSolutions SAS

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class OperationJAI

OperationJAI.Parameters

Field Summary

Fields

Modifier and Type	Field and Description
static String	GT_SYNTHETIC_PROPERTY_APPROX_MEDIAN String key for getting the approx median vector.
static String	GT_SYNTHETIC_PROPERTY_MAX String key for getting the max vector.
static String	GT_SYNTHETIC_PROPERTY_MEAN String key for getting the mean vector.
static String	GT_SYNTHETIC_PROPERTY_MEDIAN String key for getting the median vector.
static String	GT_SYNTHETIC_PROPERTY_MIN String key for getting the min vector.
static String	GT_SYNTHETIC_PROPERTY_RANGE String key for getting the range vector.
static String	GT_SYNTHETIC_PROPERTY_SDEV String key for getting the standard deviation vector.
static String	GT_SYNTHETIC_PROPERTY_SUM String key for getting the sum vector.
static String	GT_SYNTHETIC_PROPERTY_VAR String key for getting the variance vector.
static Logger	LOGGER Logger for this class.

Fields inherited from class BaseStatisticsOperationJAI

ROI, SPATIAL_SUBSAMPLING_X, SPATIAL_SUBSAMPLING_Y

Fields inherited from class OperationJAI

operation, RENDERED_MODE

Fields inherited from class Operation2D

PRIMARY_SOURCE_INDEX, SOURCE_0

Fields inherited from class AbstractOperation

descriptor

Constructor Summary

Constructors

Constructor and Description
ZonalStats() Constructs a default "ZonalStats" operation.

Method Summary

Modifier and Type	Method and Description
protected Map<String,?>	getProperties(RenderedImage data, CoordinateReferenceSystem crs, InternationalString name, MathTransform toCRS, GridCoverage2D[] sources, OperationJAI.Parameters parameters) Prepare the properties for this ZonalStats operation.

Methods inherited from class BaseStatisticsOperationJAI

convertPolygon, prepareParameters

Methods inherited from class OperationJAI

createRenderedImage, deriveCategory, deriveGridCoverage, deriveName, deriveRange, deriveSampleDimension, deriveUnit, doOperation, equals, extractSources, getJAI, getOperationDescriptor, getQuantitative, handleJAIEXTParams, handleROINoDataInternal, handleROINoDataProperties, hashCode, resampleToCommonGeometry

Methods inherited from class Operation2D

extractSources, getFactory

Methods inherited from class AbstractOperation

getDescription, getDocURL, getName, getNumSources, getParameters, getVendor, getVersion, toString

Methods inherited from class Object

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

Field Detail

LOGGER

public static final Logger LOGGER

Logger for this class.

GT_SYNTHETIC_PROPERTY_MIN

public static final String GT_SYNTHETIC_PROPERTY_MIN

String key for getting the min vector.

GT_SYNTHETIC_PROPERTY_MAX

public static final String GT_SYNTHETIC_PROPERTY_MAX

String key for getting the max vector.

GT_SYNTHETIC_PROPERTY_MEAN

public static final String GT_SYNTHETIC_PROPERTY_MEAN

String key for getting the mean vector.

GT_SYNTHETIC_PROPERTY_VAR

public static final String GT_SYNTHETIC_PROPERTY_VAR

String key for getting the variance vector.

GT_SYNTHETIC_PROPERTY_SDEV

public static final String GT_SYNTHETIC_PROPERTY_SDEV

String key for getting the standard deviation vector.

GT_SYNTHETIC_PROPERTY_RANGE

public static final String GT_SYNTHETIC_PROPERTY_RANGE

String key for getting the range vector.

GT_SYNTHETIC_PROPERTY_MEDIAN

public static final String GT_SYNTHETIC_PROPERTY_MEDIAN

String key for getting the median vector.

GT_SYNTHETIC_PROPERTY_APPROX_MEDIAN

public static final String GT_SYNTHETIC_PROPERTY_APPROX_MEDIAN

String key for getting the approx median vector.

GT_SYNTHETIC_PROPERTY_SUM

public static final String GT_SYNTHETIC_PROPERTY_SUM

String key for getting the sum vector.

Constructor Detail

ZonalStats

public ZonalStats()
           throws OperationNotFoundException

Constructs a default "ZonalStats" operation.

Throws:

OperationNotFoundException

Method Detail

getProperties

protected Map<String,?> getProperties(RenderedImage data,
                                      CoordinateReferenceSystem crs,
                                      InternationalString name,
                                      MathTransform toCRS,
                                      GridCoverage2D[] sources,
                                      OperationJAI.Parameters parameters)

Prepare the properties for this ZonalStats operation.

Overrides:

getProperties in class OperationJAI

Parameters:

data - The RenderedImage created by this operation.

crs - The coordinate reference system assigned to the coverage this OperationJAI will produce.

name - The name assigned to the coverage this OperationJAI will produce.

toCRS - The transform from grid to crs to be assigned to the coverage this OperationJAI will produce.

sources - The sources to be assigned to the coverage this OperationJAI will produce.

parameters - The parameters that were used by this OperationJAI.

Returns:

a Map with the properties generated by this OperationJAI or null if we haven't any.

See Also:

OperationJAI#getProperties(RenderedImage, CoordinateReferenceSystem, InternationalString, MathTransform, GridCoverage2D[], org.geotools.coverage.processing.OperationJAI.Parameters),