gov.nasa.worldwind.data
Class AbstractDataRaster

java.lang.Object
  gov.nasa.worldwind.avlist.AVListImpl
      gov.nasa.worldwind.data.AbstractDataRaster

All Implemented Interfaces:

AVList, DataRaster, Disposable

Direct Known Subclasses:

BufferedImageRaster, BufferWrapperRaster, GDALDataRaster

public abstract class AbstractDataRaster
extends AVListImpl
implements DataRaster

Field Summary

protected int	height
protected int	width

Constructor Summary

protected	AbstractDataRaster()
protected	AbstractDataRaster(int width, int height, Sector sector)
protected	AbstractDataRaster(int width, int height, Sector sector, AVList list)

Method Summary

protected Rectangle	computeClipRect(Sector clipSector, DataRaster clippedRaster)
protected AffineTransform	computeGeographicToRasterTransform(int width, int height, Sector sector)
protected AffineTransform	computeSourceToDestTransform(int sourceWidth, int sourceHeight, Sector sourceSector, int destWidth, int destHeight, Sector destSector)
int	getHeight() Returns the raster's height in raster units.
Sector	getSector() Returns the region covered be the data.
DataRaster	getSubRaster(AVList params) Reads the specified region of interest (ROI) with given extent, width, and height, and type
DataRaster	getSubRaster(int width, int height, Sector sector, AVList params) Returns a portion of this raster as another raster.
int	getWidth() Returns the raster's width in raster units.
Object	setValue(String key, Object value) Adds a key/value pair to the list.

Methods inherited from class gov.nasa.worldwind.avlist.AVListImpl

addPropertyChangeListener, addPropertyChangeListener, clearList, copy, firePropertyChange, firePropertyChange, getBooleanValue, getBooleanValue, getChangeSupport, getDoubleValue, getDoubleValue, getEntries, getIntegerValue, getIntegerValue, getLongValue, getLongValue, getRestorableStateForAVPair, getStringValue, getStringValue, getStringValue, getValue, getValues, hasKey, removeKey, removePropertyChangeListener, removePropertyChangeListener, setValues

Methods inherited from class java.lang.Object

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

Methods inherited from interface gov.nasa.worldwind.data.DataRaster

drawOnTo

Methods inherited from interface gov.nasa.worldwind.avlist.AVList

addPropertyChangeListener, addPropertyChangeListener, clearList, copy, firePropertyChange, firePropertyChange, getEntries, getStringValue, getValue, getValues, hasKey, removeKey, removePropertyChangeListener, removePropertyChangeListener, setValues

Methods inherited from interface gov.nasa.worldwind.Disposable

dispose

Field Detail

height

protected int height

width

protected int width

Constructor Detail

AbstractDataRaster

protected AbstractDataRaster()

AbstractDataRaster

protected AbstractDataRaster(int width,
                             int height,
                             Sector sector)
                      throws IllegalArgumentException

Throws:

IllegalArgumentException

AbstractDataRaster

protected AbstractDataRaster(int width,
                             int height,
                             Sector sector,
                             AVList list)
                      throws IllegalArgumentException

Throws:

IllegalArgumentException

Method Detail

computeClipRect

protected Rectangle computeClipRect(Sector clipSector,
                                    DataRaster clippedRaster)

computeGeographicToRasterTransform

protected AffineTransform computeGeographicToRasterTransform(int width,
                                                             int height,
                                                             Sector sector)

computeSourceToDestTransform

protected AffineTransform computeSourceToDestTransform(int sourceWidth,
                                                       int sourceHeight,
                                                       Sector sourceSector,
                                                       int destWidth,
                                                       int destHeight,
                                                       Sector destSector)

getHeight

public int getHeight()

Description copied from interface: DataRaster

Returns the raster's height in raster units.

Specified by:

getHeight in interface DataRaster

Returns:

the raster's height in raster units.

getSector

public Sector getSector()

Description copied from interface: DataRaster

Returns the region covered be the data.

Specified by:

getSector in interface DataRaster

Returns:

a sector indicating the region covered by the raster.

getSubRaster

public DataRaster getSubRaster(AVList params)

Reads the specified region of interest (ROI) with given extent, width, and height, and type

Specified by:

getSubRaster in interface DataRaster

Parameters:

params - Required parameters are:

AVKey.HEIGHT as Integer, specifies a height of the desired ROI AVKey.WIDTH as Integer, specifies a width of the desired ROI AVKey.SECTOR as Sector, specifies an extent of the desired ROI

Optional parameters are:

AVKey.BAND_ORDER as array of integers, examples: for RGBA image: new int[] { 0, 1, 2, 3 }, or for ARGB image: new int[] { 3, 0, 1, 2 } or if you want only RGB bands of the RGBA image: new int[] { 0, 1, 2 } or only Intensity (4th) band of the specific aerial image: new int[] { 3 }

Returns:

DataRaster (BufferedImageRaster for imagery or ByteBufferDataRaster for elevations)

getSubRaster

public DataRaster getSubRaster(int width,
                               int height,
                               Sector sector,
                               AVList params)

Description copied from interface: DataRaster

Returns a portion of this raster as another raster. The returned raster conforms to EPSG:4326 even if this raster does not.

Specified by:

getSubRaster in interface DataRaster

Parameters:

width - the width to make the returned sub-raster.

height - the height to make the returned sub-raster.

sector - the sector to copy.

params - a list of parameters that specify the width, height and sector of the region to return. Specify these values using AVKey.WIDTH, AVKey.HEIGHT and AVKey.SECTOR.

Returns:

the requested raster, or null if the raster could not be created.

getWidth

public int getWidth()

Description copied from interface: DataRaster

Returns the raster's width in raster units.

Specified by:

getWidth in interface DataRaster

Returns:

the raster's width in raster units.

setValue

public Object setValue(String key,
                       Object value)

Description copied from interface: AVList

Adds a key/value pair to the list. Replaces an existing key/value pair if the list already contains the key.

Specified by:

setValue in interface AVList

Overrides:

setValue in class AVListImpl

Parameters:

key - the attribute name. May not be null.

value - the attribute value. May be null, in which case any existing value for the key is removed from the collection.

Returns:

previous value associated with specified key, or null if there was no mapping for key. A null return can also indicate that the map previously associated null with the specified key, if the implementation supports null values.