org.esa.snap.core.image

Class SingleBandedOpImage

java.lang.Object

javax.media.jai.PlanarImage

javax.media.jai.OpImage

javax.media.jai.SourcelessOpImage

org.esa.snap.core.image.SingleBandedOpImage

All Implemented Interfaces:

RenderedImage, javax.media.jai.ImageJAI, javax.media.jai.PropertyChangeEmitter, javax.media.jai.PropertySource, javax.media.jai.WritablePropertySource

Direct Known Subclasses:

PlacemarkMaskOpImage, RasterDataNodeOpImage, ShapeMaskOpImage, VectorDataMaskOpImage, VirtualBandOpImage

public abstract class SingleBandedOpImage
extends javax.media.jai.SourcelessOpImage

A base class for single-band OpImages retrieving data at a given pyramid level.

Field Summary

Fields inherited from class javax.media.jai.OpImage

cache, cobbleSources, OP_COMPUTE_BOUND, OP_IO_BOUND, OP_NETWORK_BOUND, tileCacheMetric, tileRecycler

Fields inherited from class javax.media.jai.PlanarImage

colorModel, eventManager, height, minX, minY, properties, sampleModel, tileFactory, tileGridXOffset, tileGridYOffset, tileHeight, tileWidth, width

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SingleBandedOpImage(int dataBufferType, int sourceWidth, int sourceHeight, Dimension tileSize, Map configuration, ResolutionLevel level) Constructor.
protected	SingleBandedOpImage(int dataBufferType, Point sourcePos, int sourceWidth, int sourceHeight, Dimension tileSize, Map configuration, ResolutionLevel level) Constructor.

Method Summary

Modifier and Type	Method and Description
protected void	computeRect(Raster[] sources, WritableRaster dest, Rectangle destRect) Empty implementation.
protected NoDataRaster	createNoDataRaster(double noDataValue) Creates a new raster containing solely no-data (non-interpretable data, missing data) samples.
int	getLevel()
protected LevelImageSupport	getLevelImageSupport()
protected double	getScale()
protected int	getSourceCoord(double targetCoord, int min, int max)
protected int	getSourceHeight(int targetHeight)
protected int	getSourceWidth(int targetWidth)
protected int	getSourceX(int targetX)
protected int	getSourceY(int targetY)

Methods inherited from class javax.media.jai.SourcelessOpImage

computesUniqueTiles, computeTile, mapDestRect, mapSourceRect

Methods inherited from class javax.media.jai.OpImage

addTileToCache, cancelTiles, computeRect, createTile, dispose, getExpandedNumBands, getFormatTags, getOperationComputeType, getTile, getTileCache, getTileCacheMetric, getTileDependencies, getTileFromCache, getTileRecycler, getTiles, hasExtender, mapDestPoint, mapSourcePoint, prefetchTiles, queueTiles, recycleTile, setTileCache, vectorize, vectorize, vectorize

Methods inherited from class javax.media.jai.PlanarImage

addPropertyChangeListener, addPropertyChangeListener, addSink, addSink, addSource, addTileComputationListener, copyData, copyData, copyExtendedData, createColorModel, createSnapshot, createWritableRaster, finalize, getAsBufferedImage, getAsBufferedImage, getBounds, getColorModel, getData, getData, getDefaultColorModel, getExtendedData, getGraphics, getHeight, getImageID, getMaxTileX, getMaxTileY, getMaxX, getMaxY, getMinTileX, getMinTileY, getMinX, getMinY, getNumBands, getNumSources, getNumXTiles, getNumYTiles, getProperties, getProperty, getPropertyClass, getPropertyNames, getPropertyNames, getSampleModel, getSinks, getSource, getSourceImage, getSourceObject, getSources, getSplits, getTileComputationListeners, getTileFactory, getTileGridXOffset, getTileGridYOffset, getTileHeight, getTileIndices, getTileRect, getTiles, getTileWidth, getWidth, overlapsMultipleTiles, removeProperty, removePropertyChangeListener, removePropertyChangeListener, removeSink, removeSink, removeSinks, removeSource, removeSources, removeTileComputationListener, setImageLayout, setProperties, setProperty, setSource, setSources, tileXToX, tileXToX, tileYToY, tileYToY, toString, wrapRenderedImage, XToTileX, XToTileX, YToTileY, YToTileY

Methods inherited from class java.lang.Object

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

Constructor Detail

SingleBandedOpImage

protected SingleBandedOpImage(int dataBufferType,
                              int sourceWidth,
                              int sourceHeight,
                              Dimension tileSize,
                              Map configuration,
                              ResolutionLevel level)

Constructor.

Parameters:

dataBufferType - The data type.

sourceWidth - The width of the level 0 image.

sourceHeight - The height of the level 0 image.

tileSize - The tile size for this image.

configuration - The configuration map. May be null.

level - The resolution level.

SingleBandedOpImage

protected SingleBandedOpImage(int dataBufferType,
                              Point sourcePos,
                              int sourceWidth,
                              int sourceHeight,
                              Dimension tileSize,
                              Map configuration,
                              ResolutionLevel level)

Constructor.

Parameters:

dataBufferType - The data type.

sourcePos - The position of the level 0 image. May be null.

sourceWidth - The width of the level 0 image.

sourceHeight - The height of the level 0 image.

tileSize - The tile size for this image.

configuration - The configuration map. May be null.

level - The resolution level.

Method Detail

getLevel

public final int getLevel()

getScale

protected final double getScale()

getSourceX

protected final int getSourceX(int targetX)

getSourceY

protected final int getSourceY(int targetY)

getSourceWidth

protected final int getSourceWidth(int targetWidth)

getSourceHeight

protected final int getSourceHeight(int targetHeight)

getSourceCoord

protected final int getSourceCoord(double targetCoord,
                                   int min,
                                   int max)

getLevelImageSupport

protected LevelImageSupport getLevelImageSupport()

createNoDataRaster

protected NoDataRaster createNoDataRaster(double noDataValue)

Creates a new raster containing solely no-data (non-interpretable data, missing data) samples. The raster's data buffer is filled with the given no-data value.

The raster's origin is (0, 0). In order to translate the raster, use Raster.createTranslatedChild(int x, int y).

Parameters:

noDataValue - The no-data value used to fill the data buffer of the raster created.

Returns:

the raster created.

See Also:

NoDataRaster

computeRect

protected final void computeRect(Raster[] sources,
                                 WritableRaster dest,
                                 Rectangle destRect)

Empty implementation. Used to prevent clients from overriding it, since they shall implement OpImage.computeRect(javax.media.jai.PlanarImage[], java.awt.image.WritableRaster, java.awt.Rectangle).

Overrides:

computeRect in class javax.media.jai.OpImage

Parameters:

sources - The sources.

dest - The destination raster.

destRect - The destination rectangle.