org.gvsig.raster.memory.io

Class MemoryRasterProvider

java.lang.Object

org.gvsig.tools.dispose.impl.AbstractDisposable

org.gvsig.fmap.dal.raster.spi.AbstractCoverageStoreProvider

org.gvsig.raster.impl.provider.AbstractRasterProvider

org.gvsig.raster.memory.io.MemoryRasterProvider

All Implemented Interfaces:

Histogramable, DataStoreProvider, CoverageStoreProvider, RasterProvider, Disposable, DynObject

public class MemoryRasterProvider
extends AbstractRasterProvider

Driver para datos cargados en un objeto IBuffer

Field Summary

Fields

Modifier and Type	Field and Description
protected Buffer	buffer
static String	DESCRIPTION
static String	METADATA_DEFINITION_NAME
static String	NAME

Fields inherited from class org.gvsig.raster.impl.provider.AbstractRasterProvider

ALPHA_BAND, bandCount, BLUE_BAND, bytesReaded, colorTable, externalTransformation, fileSize, fileUtil, geoPointList, GREEN_BAND, histogram, lineCnt, noData, ownTransformation, param, proj, rasterUtil, RED_BAND, rmfBlocksManager, selectedSubdatasetID, serialInfo, stats, storeServices, tileServer, transparency, uri

Fields inherited from class org.gvsig.fmap.dal.raster.spi.AbstractCoverageStoreProvider

metadata, parameters, store

Constructor Summary

Constructors

Constructor and Description
MemoryRasterProvider() Mandatory constructor to instantiate an empty provider
MemoryRasterProvider(AbstractRasterDataParameters params, DataStoreProviderServices storeServices) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	addFile(File file) Adds a new file.
void	close() Request to close de source
int	getBlockSize() Devuelve el tamaño de bloque
Object	getData(int x, int y, int band) Obtiene la orientación de la imagen a partir del signo del tamaño de pixel para poder asignarlo en el setView.
int[]	getDataType() Obtiene el tipo de dato por banda
String	getFullName() Returns a more descriptive name for the provider that getName.
double	getHeight() Obtiene la altura del fichero
String	getName() Returns the name associated to the provider.
int	getOverviewCount(int band) Obtiene el número de overviews de una banda
int	getOverviewHeight(int band, int overview) Obtiene el alto de una overview de una banda
int	getOverviewWidth(int band, int overview) Obtiene el ancho de una overview de una banda
String	getProviderName() Return the name of the provider.
TileServer	getTileServer() Gets the tile cache data server
Transparency	getTransparency() Obtiene el objeto que contiene el estado de la transparencia
Extent	getView() Obtiene extent de la vista actual
double	getWidth() Obtiene la anchura del fichero
Buffer	getWindow(double x, double y, double w, double h, BandList bandList, Buffer rasterBuf, boolean adjustToExtent, TaskStatus status)
Buffer	getWindow(Extent ex, BandList bandList, Buffer rasterBuf, TaskStatus status)
Buffer	getWindow(Extent extent, int bufWidth, int bufHeight, BandList bandList, Buffer rasterBuf, boolean adjustToExtent, TaskStatus status)
Buffer	getWindow(int x, int y, int w, int h, BandList bandList, Buffer rasterBuf, TaskStatus status)
boolean	isGeoreferenced() Obtiene el flag que dice si la imagen está o no georreferenciada
boolean	isOpen() Returns true if this provider is open and false if don't
boolean	isOverviewsSupported() Informa de si el dataset soporta overviews o no.
boolean	isSupersampling() Informa de si el driver ha supersampleado en el último dibujado.
RasterProvider	load() Carga un fichero raster.
void	loadBuffer(SpiRasterQuery q) Load a buffer with the parameters.
Object	readBlock(int pos, int blockHeight, double scale) Reads a complete block of data and returns an tridimensional array of the right type.
Object	readCompleteLine(int line, int band)
static void	register()
void	registerTileProviderFormats(Class<RasterProvider> c)
void	removeFile(File file) Removes a file.
void	reProject(ICoordTrans rp)
void	setStatus(RasterProvider provider) Sets the status information using other provider of the same type.
void	setView(Extent e) Asigna el extent de la vista actual.

Methods inherited from class org.gvsig.raster.impl.provider.AbstractRasterProvider

cloneProvider, deleteLayerFromCache, doDispose, finalize, getAffineTransform, getBandCount, getBandCountByProvider, getBandPositionByProvider, getCellSize, getChilds, getColorInterpretation, getColorTable, getDataParameters, getDataSet, getDefaultBandList, getExplorer, getExtent, getExtentWithoutRot, getFileSize, getFileSizeByProvider, getFileSuffix, getFormatList, getGeoPointList, getHistogramComputer, getImageLegend, getInfoByPoint, getInfoByPoint, getInternalProvider, getInternalProviderCount, getInterval, getMetadata, getNoDataValue, getOwnAffineTransform, getPixelSizeX, getPixelSizeY, getProjection, getResource, getRmfBlocksManager, getRMFFile, getRMFFileForRemoteServices, getSourceId, getSourceType, getStatistics, getSubdatasetCount, getTileSize, getTime, getTimes, getTimes, getTimeSerials, getURI, getURIByBand, getURIByProvider, getURIOfFirstProvider, getWktProjection, init, isARGB, isInside, isMosaic, isMultiFile, isRasterEnclosed, isReproyectable, isRGB, isRotated, isTiled, isTimeSupported, loadFromRmf, loadObjectFromRmf, loadObjectFromRmf, loadObjectFromRmfFile, needEnhanced, newProvider, open, rasterToWorld, reload, resetAffineTransform, saveObjectToRmf, saveObjectToRmf, selectSubdataset, selectSubdataset, setAffineTransform, setColorInterpretation, setColorTable, setDataType, setFileSize, setFName, setGeoPointList, setNoDataValue, setParam, setProjection, setStatistics, setTileServer, setTimeSerials, singleDatasetInstance, translateFileName, translateURI, worldToRaster

Methods inherited from class org.gvsig.fmap.dal.raster.spi.AbstractCoverageStoreProvider

allowWrite, clear, createCoverageSelection, createResource, delegate, getClassName, getDataStoreParameters, getDynClass, getDynValue, getEnvelope, getStoreServices, hasDynValue, implement, init, invokeDynMethod, invokeDynMethod, refresh, setDynValue, setMetadata

Methods inherited from class org.gvsig.tools.dispose.impl.AbstractDisposable

dispose, dispose

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.gvsig.fmap.dal.raster.spi.CoverageStoreProvider

allowWrite, getStoreServices

Methods inherited from interface org.gvsig.fmap.dal.spi.DataStoreProvider

refresh

Methods inherited from interface org.gvsig.tools.dynobject.DynObject

clear, delegate, getDynClass, getDynValue, hasDynValue, implement, invokeDynMethod, invokeDynMethod, setDynValue

Methods inherited from interface org.gvsig.tools.dispose.Disposable

dispose

Field Detail

NAME

public static String NAME

DESCRIPTION

public static String DESCRIPTION

METADATA_DEFINITION_NAME

public static final String METADATA_DEFINITION_NAME

See Also:

Constant Field Values

buffer

protected Buffer buffer

Constructor Detail

MemoryRasterProvider

public MemoryRasterProvider()

Mandatory constructor to instantiate an empty provider

MemoryRasterProvider

public MemoryRasterProvider(AbstractRasterDataParameters params,
                    DataStoreProviderServices storeServices)
                     throws NotSupportedExtensionException

Constructor. Asigna el buffer de datos y la extensión

Parameters:

proj - Proyección

buf - Buffer

Throws:

NotSupportedExtensionException

Method Detail

register

public static void register()

registerTileProviderFormats

public void registerTileProviderFormats(Class<RasterProvider> c)

load

public RasterProvider load()

Description copied from class: AbstractRasterProvider

Carga un fichero raster. Puede usarse para calcular el extent e instanciar un objeto de este tipo.

Specified by:

load in class AbstractRasterProvider

Returns:

RasterProvider

isOpen

public boolean isOpen()

Description copied from interface: RasterProvider

Returns true if this provider is open and false if don't

Returns:

close

public void close()

Description copied from interface: DataStoreProvider

Request to close de source

Specified by:

close in interface RasterProvider

Overrides:

close in class AbstractRasterProvider

setView

public void setView(Extent e)

Asigna el extent de la vista actual.

Specified by:

setView in class AbstractRasterProvider

Parameters:

e - Extent

getView

public Extent getView()

Obtiene extent de la vista actual

Specified by:

getView in interface RasterProvider

Specified by:

getView in class AbstractRasterProvider

Returns:

Extent

getWidth

public double getWidth()

Obtiene la anchura del fichero

Specified by:

getWidth in interface RasterProvider

Specified by:

getWidth in class AbstractRasterProvider

Returns:

Ancho de la imagen

getHeight

public double getHeight()

Obtiene la altura del fichero

Specified by:

getHeight in interface RasterProvider

Specified by:

getHeight in class AbstractRasterProvider

Returns:

Ancho de la imagen

reProject

public void reProject(ICoordTrans rp)

getData

public Object getData(int x,
             int y,
             int band)

Obtiene la orientación de la imagen a partir del signo del tamaño de pixel para poder asignarlo en el setView. Esto es util para poder conocer como debe leerse la image, de abajo a arriba, de arriba a abajo, de izquierda a derecha o de derecha a izquierda. La posición habitual es la que el pixel size en X es positivo y en Y negativo leyendose en este caso las X de menor a mayor y las Y de mayor a menor. Los casos posibles son:

• X > 0; Y < 0; {true, false}
• X > 0; Y > 0; {true, true}
• X < 0; Y > 0; {false, true}
• X < 0; Y < 0; {false, false}

Specified by:

getData in interface RasterProvider

Specified by:

getData in class AbstractRasterProvider

Parameters:

x - coordenada X

y - coordenada Y

Returns:

getBlockSize

public int getBlockSize()

Devuelve el tamaño de bloque

Specified by:

getBlockSize in class AbstractRasterProvider

Returns:

Tamaño de bloque

isGeoreferenced

public boolean isGeoreferenced()

Obtiene el flag que dice si la imagen está o no georreferenciada

Specified by:

isGeoreferenced in interface RasterProvider

Overrides:

isGeoreferenced in class AbstractRasterProvider

Returns:

true si está georreferenciada y false si no lo está.

isSupersampling

public boolean isSupersampling()

Informa de si el driver ha supersampleado en el último dibujado. Es el driver el que colocará el valor de esta variable cada vez que dibuja.

Returns:

true si se ha supersampleado y false si no se ha hecho.

getDataType

public int[] getDataType()

Description copied from interface: RasterProvider

Obtiene el tipo de dato por banda

Specified by:

getDataType in interface RasterProvider

Overrides:

getDataType in class AbstractRasterProvider

Returns:

Returns the dataType.

loadBuffer

public void loadBuffer(SpiRasterQuery q)
                throws ProcessInterruptedException,
                       RasterDriverException

Description copied from class: AbstractRasterProvider

Load a buffer with the parameters. The buffer should already have been created inside the query structure SpiRasterQuery by the RasterDataStore. The other parameters have been calculated too, all of them adjusted to the raster limits. The provider only have to read the parameters and load the buffer.

Specified by:

loadBuffer in class AbstractRasterProvider

Throws:

ProcessInterruptedException

RasterDriverException

getWindow

public Buffer getWindow(Extent ex,
               BandList bandList,
               Buffer rasterBuf,
               TaskStatus status)

getWindow

public Buffer getWindow(double x,
               double y,
               double w,
               double h,
               BandList bandList,
               Buffer rasterBuf,
               boolean adjustToExtent,
               TaskStatus status)

getWindow

public Buffer getWindow(Extent extent,
               int bufWidth,
               int bufHeight,
               BandList bandList,
               Buffer rasterBuf,
               boolean adjustToExtent,
               TaskStatus status)

getWindow

public Buffer getWindow(int x,
               int y,
               int w,
               int h,
               BandList bandList,
               Buffer rasterBuf,
               TaskStatus status)

readCompleteLine

public Object readCompleteLine(int line,
                      int band)
                        throws InvalidSetViewException,
                               FileNotOpenException,
                               RasterDriverException

Throws:

InvalidSetViewException

FileNotOpenException

RasterDriverException

readBlock

public Object readBlock(int pos,
               int blockHeight,
               double scale)
                 throws InvalidSetViewException,
                        FileNotOpenException,
                        RasterDriverException

Description copied from interface: RasterProvider

Reads a complete block of data and returns an tridimensional array of the right type. This function is useful to read a file very fast without setting a view.

Throws:

InvalidSetViewException

FileNotOpenException

RasterDriverException

getTransparency

public Transparency getTransparency()

Obtiene el objeto que contiene el estado de la transparencia

Specified by:

getTransparency in interface RasterProvider

Overrides:

getTransparency in class AbstractRasterProvider

Returns:

Objeto FileTransparency con el estado de transparencia

getOverviewCount

public int getOverviewCount(int band)
                     throws BandAccessException,
                            RasterDriverException

Description copied from interface: RasterProvider

Obtiene el número de overviews de una banda

Returns:

Throws:

BandAccessException

RasterDriverException

getOverviewWidth

public int getOverviewWidth(int band,
                   int overview)
                     throws BandAccessException,
                            RasterDriverException

Description copied from interface: RasterProvider

Obtiene el ancho de una overview de una banda

Specified by:

getOverviewWidth in interface RasterProvider

Specified by:

getOverviewWidth in class AbstractRasterProvider

Returns:

Throws:

BandAccessException

RasterDriverException

getOverviewHeight

public int getOverviewHeight(int band,
                    int overview)
                      throws BandAccessException,
                             RasterDriverException

Description copied from interface: RasterProvider

Obtiene el alto de una overview de una banda

Specified by:

getOverviewHeight in interface RasterProvider

Specified by:

getOverviewHeight in class AbstractRasterProvider

Returns:

Throws:

BandAccessException

RasterDriverException

isOverviewsSupported

public boolean isOverviewsSupported()

Description copied from class: AbstractRasterProvider

Informa de si el dataset soporta overviews o no.

Specified by:

isOverviewsSupported in interface RasterProvider

Specified by:

isOverviewsSupported in class AbstractRasterProvider

Returns:

true si soporta overviews y false si no las soporta.

getProviderName

public String getProviderName()

Description copied from interface: DataStoreProvider

Return the name of the provider. Examples: dbf, shp, jdbc, postgresql, wfs, gml

Returns:

getName

public String getName()

Description copied from interface: DataStoreProvider

Returns the name associated to the provider. This name is provided for informational purposes only. Explamples: In a dbf the filename without the path In a DDBB table the name of the table In a WFS layer the name of the layer.

Overrides:

getName in class AbstractRasterProvider

Returns:

String containing this store's name.

getFullName

public String getFullName()

Description copied from interface: DataStoreProvider

Returns a more descriptive name for the provider that getName. This name is provided for informational purposes only. Explamples: In a file based store may return the full name of the filename, path and filename. In a data base based store may return "server:dbname:tablename" In a WFS layer based store may return "server:layername"

Overrides:

getFullName in class AbstractRasterProvider

Returns:

String Containing the full name of the store

setStatus

public void setStatus(RasterProvider provider)

Description copied from interface: RasterProvider

Sets the status information using other provider of the same type. The first action of this method should be to check the type of the parameter.

getTileServer

public TileServer getTileServer()

Description copied from interface: RasterProvider

Gets the tile cache data server

Returns:

addFile

public void addFile(File file)
             throws InvalidSourceException

Description copied from interface: RasterProvider

Adds a new file. The behavior of this function depends on the kind of provider and its implementation.

Throws:

InvalidSourceException

removeFile

public void removeFile(File file)

Description copied from interface: RasterProvider

Removes a file. The behavior of this function depends on the kind of provider and its implementation.