org.gvsig.raster.wcs.app.wcsclient.layer

Class FLyrWCS

java.lang.Object

org.gvsig.tools.dispose.impl.AbstractDisposable

org.gvsig.fmap.mapcontext.layers.FLyrDefault

org.gvsig.raster.fmap.layers.DefaultFLyrRaster

org.gvsig.raster.wcs.app.wcsclient.layer.FLyrWCS

All Implemented Interfaces:

EventListener, Projected, VisualPropertyListener, ExtendedPropertiesSupport, FLayer, FLayerHidesArea, LayerListener, Classifiable, InfoByPoint, SingleLayer, Metadata, FLyrRaster, ILayerState, IRasterLayerActions, Multiresolution, Disposable, DynObject, Persistent

public class FLyrWCS
extends DefaultFLyrRaster

Class for the WCS layer. Capa para el WCS. Las capas WCS son tileadas para descargarlas del servidor. Esto quiere decir que están formadas por multiples ficheros raster. Por esto la fuente de datos raster (IRasterDatasource) de la capa FLyrWCS es un objeto de tipo CompositeDataset. Este objeto está compuesto por un array bidimensional de MultiRasterDataset. Cada uno de los MultiRasterDataset corresponde con un tile salvado en disco. Estos MultiRasterDataset se crean cada vez que se repinta ya que en WCS a cada zoom varian los ficheros fuente. La secuencia de creación de un CompositeDataset sería la siguiente:

• Se hace una petición de dibujado por parte del usuario llamando al método draw de FLyrWCS
• Se tilea la petición
• Cada tile se dibuja abriendo una FLyrRaster para ese tile
• Si es el primer dibujado se guarda una referencia en la capa WCS a las propiedades de renderizado, orden de bandas, transparencia, filtros aplicados, ...
• Si no es el primer dibujado se asignan las propiedades de renderizado cuya referencia se guarda en la capa WCS
• Se guarda el MultiRasterDataset de cada tile
• Al acabar todos los tiles creamos un CompositeDataset con los MultiRasterDataset de todos los tiles
• Asignamos a la capa la referencia de las propiedades de renderizado que tenemos almacenadas. De esta forma si hay alguna modificación desde el cuadro de propiedades será efectiva sobre los tiles que se dibujan.

Nested Class Summary

Nested classes/interfaces inherited from class org.gvsig.raster.fmap.layers.DefaultFLyrRaster

DefaultFLyrRaster.RasterTaskStatus

Nested classes/interfaces inherited from class org.gvsig.fmap.mapcontext.layers.FLyrDefault

FLyrDefault.RegisterMetadata, FLyrDefault.RegisterPersistence

Field Summary

Fields inherited from class org.gvsig.raster.fmap.layers.DefaultFLyrRaster

colorTableLoadedFromProject, crsUtil, dataStore, fileUtil, lastLegend, loadedFromProject, mathUtil, PERSISTENT_DESCRIPTION, PERSISTENT_NAME, rasterUtil, readingData, recalcLevel, render, zoomLevel

Fields inherited from class org.gvsig.fmap.mapcontext.layers.FLyrDefault

layerListeners, metadataContainer

Fields inherited from interface org.gvsig.raster.fmap.layers.IRasterLayerActions

BANDS_FILE_LIST, BANDS_RGB, BRIGHTNESSCONTRAST, CLIPPING, COLOR_TABLE, CREATEOVERVIEWS, ENHANCED, FILTER, FLYRASTER_BAR_TOOLS, GEOLOCATION, HISTOGRAM, NODATA, OPACITY, PANSHARPENING, RASTER_PROPERTIES, REMOTE_ACTIONS, REPROJECT, SAVE_COLORINTERP, SAVEAS, SELECT_LAYER, STATS, TAILTRIM, TRANSPARENCY, ZOOM_PIXEL_RESOLUTION

Fields inherited from interface org.gvsig.raster.fmap.layers.ILayerState

AWAKE, CLOSED, OPEN, STOPPED, UNDEFINED

Fields inherited from interface org.gvsig.fmap.mapcontext.layers.FLayer

METADATA_CRS, METADATA_DEFINITION_DESCRIPTION, METADATA_DEFINITION_NAME, METADATA_NAME

Constructor Summary

Constructors

Constructor and Description
FLyrWCS()
FLyrWCS(DataStoreParameters dataStoreParameters)

Method Summary

Modifier and Type	Method and Description
FLayer	cloneLayer() This method can be used to have a fast cloned layer.
static DataStore	createDataStore(String host, IProjection srs)
void	deleteCache(boolean deleteCache) Assigns the flag to delete this layer from the cache
void	draw(BufferedImage image, Graphics2D g, ViewPort viewPort, Cancellable cancel, double scale) Draws the layer using a buffer.
String	getDataWorldFile(Rectangle2D bBox, Dimension sz) Calcula el contenido del fichero de georreferenciación de una imagen.
WCSServerExplorer	getExplorer() Gets the explorer
String	getFileFormat() Returs a string with the extension of the first file
Extent	getFullRasterExtent() Gets the full extent
DynObjectSet	getInfo(Point p, double tolerance, Cancellable cancel, boolean fast) Executes a consultation about information of a point on the layer.
Point2D	getMaxResolution() Gets the max resolution allowed by the coverage.
WCSDataParameters	getParameters()
HashMap<String,Object>	getProperties()
Transparency	getRenderTransparency()
int[]	getTileSize() Gets the tile size
String	getTocImageIcon() Returns the image icon that will be shown in the TOC next to this layer.
boolean	isActionEnabled(int action) Controla si una acción está activa o no para una determinada capa.
boolean	isRemote() Returns true if this layer is remote
boolean	isTiled() Returns true if the drawn is going to be tiled
boolean	overviewsSupport() Devuelve si la capa tiene soporte para poder generar overviews
void	print(Graphics2D g, ViewPort viewPort, Cancellable cancel, double scale, PrintRequestAttributeSet properties)
static void	registerPersistent()
void	setDataStore(DataStore dataStore) Fija el DataStore asociado a la capa.
void	setExplorer(WCSServerExplorer explorer) Sets the explorer
void	setFullEnvelope(Envelope envelope) Inserta la extensión total de la capa en la proyeccion original.
void	setFullExtent(Rectangle2D fullExtent) Sets the layer's full extent.
void	setParameters(DataStoreParameters params) Sets the data store parameters

Methods inherited from class org.gvsig.raster.fmap.layers.DefaultFLyrRaster

addFile, addLegendListener, adjustWorldRequest, createLayer, decreaseZoomLevel, disableStopped, doDispose, draw, enableAwake, enableClosed, enableOpen, enableStopped, existColorTable, existsAlphaBand, finalize, getAffineTransform, getAffineTransformHistorical, getAlphaBandNumber, getAttributes, getBandCountFromDataset, getCellSize, getColorInterpretation, getConfiguration, getCoordsInLevel, getDataStore, getDataType, getFile, getFileCount, getFileLayer, getFileSize, getFullEnvelope, getGeometryType, getInfo, getInfo, getInfo, getLegend, getMaxX, getMaxY, getMetadataChildren, getMetadataID, getMetadataName, getMinX, getMinY, getNoDataValue, getProjection, getRasterStrategy, getRender, getRois, getROIsFiles, getShapeType, getTransparency, getURI, getUris, getWCHeight, getWCWidth, getWktProjection, getZoomLevel, increaseZoomLevel, init, initFilters, isAwake, isClosed, isEnabledMultiresolution, isFileAccepted, isFileSupported, isGeoreferenced, isInside, isOpen, isReadingData, isRemoveRasterFlag, isRenderingAsGray, isReproyectable, isRGB, isStopped, isTransparent, load, loadFromState, print, queryByPoint, readProjection, registerDynClass, registerPersistence, registerPersistence, reload, removeFile, removeLayerListener, removeLegendListener, saveGeoToRmf, saveToState, setAffineTransform, setAffineTransformWithoutHistorical, setConfiguration, setDataStore, setLastLegend, setLayerInitialized, setName, setNoDataTransparent, setNoDataValue, setOpenRasterStore, setProjection, setProjection, setReadingData, setRemoveRasterFlag, setRenderFilterList, setRois, setROIsFiles, setTileServer, setTransparency, setVisible, setZoomLevel, visualPropertyValueChanged, wakeUp

Methods inherited from class org.gvsig.fmap.mapcontext.layers.FLyrDefault

activationChanged, addError, addLayerListener, allowLinks, callEditionChanged, callLegendChanged, clear, delegate, drawValueChanged, editionChanged, getClassName, getCoordTrans, getDrawVersion, getDynClass, getDynValue, getError, getErrors, getExtendedProperties, getFLayerStatus, getInfoString, getLayerListeners, getLink, getLinkProperties, getMapContext, getMaxScale, getMinScale, getName, getNumErrors, getParentLayer, getProperty, getTocStatusImage, hasChangedForDrawing, hasDynValue, hidesThisArea, implement, invokeDynMethod, invokeDynMethod, isActive, isAvailable, isEditing, isInTOC, isOk, isTemporary, isVisible, isWithinScale, isWritable, nameChanged, newComposedLayer, reProject, setActive, setAvailable, setCoordTrans, setDynValue, setEditing, setError, setFLayerStatus, setInTOC, setMaxScale, setMinScale, setParentLayer, setProperty, setTemporary, setTocStatusImage, toString, updateDrawVersion, visibilityChanged, visibleRequired

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, wait, wait, wait

Methods inherited from interface org.gvsig.raster.fmap.layers.FLyrRaster

getMapContext, getMaxScale, getMinScale, getName, setMaxScale, setMinScale

Methods inherited from interface org.gvsig.fmap.mapcontext.layers.FLayer

addError, addLayerListener, allowLinks, getCoordTrans, getDrawVersion, getError, getErrors, getFLayerStatus, getInfoString, getLayerListeners, getLink, getLinkProperties, getNumErrors, getParentLayer, getTocStatusImage, isActive, isAvailable, isEditing, isInTOC, isOk, isTemporary, isVisible, isWithinScale, isWritable, newComposedLayer, setActive, setAvailable, setCoordTrans, setEditing, setError, setFLayerStatus, setInTOC, setParentLayer, setTemporary, visibleRequired

Methods inherited from interface org.cresques.geo.Projected

reProject

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

Methods inherited from interface org.gvsig.fmap.mapcontext.layers.ExtendedPropertiesSupport

getExtendedProperties, getProperty, setProperty

Constructor Detail

FLyrWCS

public FLyrWCS()

FLyrWCS

public FLyrWCS(DataStoreParameters dataStoreParameters)
        throws Exception

Throws:

Exception

Method Detail

createDataStore

public static DataStore createDataStore(String host,
                                        IProjection srs)
                                 throws InitializeException

Throws:

InitializeException

setDataStore

public void setDataStore(DataStore dataStore)
                  throws LoadLayerException

Description copied from interface: SingleLayer

Fija el DataStore asociado a la capa. Este metodo no deberia ser usado desde el API, es un metodo interno que solo deberia ser usado por la factoria de capas.

Specified by:

setDataStore in interface SingleLayer

Overrides:

setDataStore in class DefaultFLyrRaster

Parameters:

dataStore - a usar en la capa.

Throws:

LoadLayerException

draw

public void draw(BufferedImage image,
                 Graphics2D g,
                 ViewPort viewPort,
                 Cancellable cancel,
                 double scale)
          throws ReadException

Description copied from interface: FLayer

Draws the layer using a buffer.

Specified by:

draw in interface FLayer

Specified by:

draw in interface FLyrRaster

Overrides:

draw in class DefaultFLyrRaster

Parameters:

image - an image used to accelerate the screen draw

g - for rendering 2-dimensional shapes, text and images on the Java(tm) platform

viewPort - information for drawing this layer

cancel - an object thread that implements the Cancellable interface, and will allow to cancel the draw

scale - value that represents the scale

Throws:

ReadException - if fails the driver used in this method.

See Also:

com.iver.cit.gvsig.fmap.layers.LayerOperations#draw(java.awt.image.BufferedImage, java.awt.Graphics2D, com.iver.cit.gvsig.fmap.ViewPort, com.iver.utiles.swing.threads.Cancellable)

getMaxResolution

public Point2D getMaxResolution()

Gets the max resolution allowed by the coverage. Requesting a higher resolution than this value does not cause any error, but the info responsed is just an interpolation.

In exchange for obtaining a greater file and without additional information, we can easily fit it into the View.

Obtiene la resolución máxima soportada por la cobertura. La petición de una resolución superior a la soportada no provoca ningún error, aunque la información obtenida sólo es una mera interpolación de información.

A cambio de obtener un archivo mayor y sin información adicional, podemos fácilmente acoplarlo a la vista.

Returns:

double

getExplorer

public WCSServerExplorer getExplorer()

Gets the explorer

Returns:

getDataWorldFile

public String getDataWorldFile(Rectangle2D bBox,
                               Dimension sz)
                        throws IOException

Calcula el contenido del fichero de georreferenciación de una imagen.

Parameters:

bBox - Tamaño y posición de la imagen (en coordenadas de usuario)

sz - Tamaño de la imagen en pixeles.

Returns:

el 'WorldFile', como String.

Throws:

IOException

cloneLayer

public FLayer cloneLayer()
                  throws Exception

Description copied from interface: FLayer

This method can be used to have a fast cloned layer.

The implementations should take care of not recreate this layer. Instead of this, is better to use the same source (driver) and deepclone the legend. Exception: the labels aren't deepcloned to avoid memory consumption.

Note: Labels are memory consuming to speed up layers like PostGIS and so on.

Specified by:

cloneLayer in interface FLayer

Specified by:

cloneLayer in interface FLyrRaster

Overrides:

cloneLayer in class DefaultFLyrRaster

Returns:

a layer that is a clonation of this layer

Throws:

Exception - any exception produced during the cloning of this layer.

getRenderTransparency

public Transparency getRenderTransparency()

print

public void print(Graphics2D g,
                  ViewPort viewPort,
                  Cancellable cancel,
                  double scale,
                  PrintRequestAttributeSet properties)
           throws ReadException

Throws:

ReadException

setFullEnvelope

public void setFullEnvelope(Envelope envelope)

Inserta la extensión total de la capa en la proyeccion original.

Parameters:

fullExtent - Rectángulo.

setFullExtent

public void setFullExtent(Rectangle2D fullExtent)

Sets the layer's full extent. Establece la extensión máxima de la capa.

Parameters:

rect -

getProperties

public HashMap<String,Object> getProperties()

getTileSize

public int[] getTileSize()

Description copied from interface: FLyrRaster

Gets the tile size

Specified by:

getTileSize in interface FLyrRaster

Overrides:

getTileSize in class DefaultFLyrRaster

Returns:

getTocImageIcon

public String getTocImageIcon()

Description copied from interface: FLayer

Returns the image icon that will be shown in the TOC next to this layer.

Specified by:

getTocImageIcon in interface FLayer

Overrides:

getTocImageIcon in class DefaultFLyrRaster

Returns:

a String reference to the image icon, or null if there isn't any

isTiled

public boolean isTiled()

Description copied from interface: FLyrRaster

Returns true if the drawn is going to be tiled

Specified by:

isTiled in interface FLyrRaster

Overrides:

isTiled in class DefaultFLyrRaster

Returns:

isRemote

public boolean isRemote()

Description copied from interface: FLyrRaster

Returns true if this layer is remote

Specified by:

isRemote in interface FLyrRaster

Overrides:

isRemote in class DefaultFLyrRaster

Returns:

getInfo

public DynObjectSet getInfo(Point p,
                            double tolerance,
                            Cancellable cancel,
                            boolean fast)
                     throws LoadLayerException,
                            DataException

Description copied from interface: InfoByPoint

Executes a consultation about information of a point on the layer.

There is an area around the point where will got the information.

Specified by:

getInfo in interface InfoByPoint

Overrides:

getInfo in class DefaultFLyrRaster

Parameters:

p - point where is the consultation

tolerance - permissible margin around the coordinates of the point where the method will got the information. Each singular implementation of this method would use it in a different way. The coordinates also depend on the implementation.

cancel - shared object that determines if this layer can continue being drawn

fast - if true try to reuse objects as much as possible to make the object iteration faster. If true, DynObjects got through the returned set must not be stored unless cloned.

Returns:

a DynObjectSet. If the InfoByPoint Object is a vector layer it should return a FeatureSet.

Throws:

LoadLayerException - any exception produced using the driver.

DataException - TODO

getFileFormat

public String getFileFormat()

Description copied from interface: FLyrRaster

Returs a string with the extension of the first file

Specified by:

getFileFormat in interface FLyrRaster

Overrides:

getFileFormat in class DefaultFLyrRaster

isActionEnabled

public boolean isActionEnabled(int action)

Description copied from interface: IRasterLayerActions

Controla si una acción está activa o no para una determinada capa. De esta forma una determinada capa puede desactivar una entrada del TOC que no le interese que aparezca.

Specified by:

isActionEnabled in interface IRasterLayerActions

Overrides:

isActionEnabled in class DefaultFLyrRaster

Parameters:

action - Acción definida en LayerActionSupported

Returns:

true si está activa y false si no lo está.

overviewsSupport

public boolean overviewsSupport()

Description copied from class: DefaultFLyrRaster

Devuelve si la capa tiene soporte para poder generar overviews

Overrides:

overviewsSupport in class DefaultFLyrRaster

Returns:

getFullRasterExtent

public Extent getFullRasterExtent()

Description copied from interface: FLyrRaster

Gets the full extent

Specified by:

getFullRasterExtent in interface FLyrRaster

Overrides:

getFullRasterExtent in class DefaultFLyrRaster

Returns:

getParameters

public WCSDataParameters getParameters()

setExplorer

public void setExplorer(WCSServerExplorer explorer)

Sets the explorer

Parameters:

explorer -

deleteCache

public void deleteCache(boolean deleteCache)

Assigns the flag to delete this layer from the cache

Parameters:

selected -

setParameters

public void setParameters(DataStoreParameters params)
                   throws InitializeException

Sets the data store parameters

Parameters:

params -

Throws:

InitializeException

registerPersistent

public static void registerPersistent()