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Java Source Code / Java Documentation » GIS » GeoTools 2.4.1 » org.geotools.image.io

Source Cross Reference

Class Diagram

Java Document (Java Doc)

java.lang .Object

javax.imageio .ImageReader

org.geotools.image.io .GeographicImageReader

org.geotools.image.io .StreamImageReader

org.geotools.image.io .SimpleImageReader

SimpleImageReader

abstract public class SimpleImageReader extends StreamImageReader (Code)

Base class for simple image decoders. The main simplification provided by this class is to assume that only one is supported (as opposed to the arbitrary number allowed by the standard ImageReader ) and to provide a default image type built automatically from a color palette and a range of valid values.

More specifically, this class provides the following conveniences to implementors:

Provides a SimpleImageReader.getInputStream method, which returns the as an InputStream for convenience. Different kinds of input like or are automatically handled.
Provides default SimpleImageReader.getNumImages and SimpleImageReader.getNumBands implementations, which return 1. This default behavior matches simple image formats like flat binary files or ASCII files. Those methods need to be overrided for more complex image formats.
Provides SimpleImageReader.checkImageIndex and SimpleImageReader.checkBandIndex convenience methods. Those methods are invoked by most implementation of public methods. They perform their checks based on the informations provided by the above-cited SimpleImageReader.getNumImages and SimpleImageReader.getNumBands methods.
Provides default implementations of SimpleImageReader.getImageTypes and SimpleImageReader.getRawImageType , which assume that only one is supported. The default image type is created from the informations provided by SimpleImageReader.getRawDataType and SimpleImageReader.getImageMetadata .
Provides SimpleImageReader.getStreamMetadata and SimpleImageReader.getImageMetadata default implementations, which return null as authorized by the specification. Note that subclasses should consider returning org.geotools.image.io.metadata.GeographicMetadata .

Images may be flat binary or ASCII files with no meta-data and no color information. Their pixel values may be floating point values instead of integers. The default implementation assumes floating point values and uses a grayscale color space scaled to fit the range of values. Displaying such an image may be very slow. Consequently, users who want to display image are encouraged to change data type and color space with Java Advanced Imaging operators after reading.
since:
   2.1
version:
   $Id: SimpleImageReader.java 26161 2007-07-05 14:27:01Z desruisseaux $
author:
   Martin DesruisseauxStreamImageReader

Constructor Summary
protected	SimpleImageReader(ImageReaderSpi provider) Constructs a new image reader.

Constructor Detail

SimpleImageReader
protected SimpleImageReader(ImageReaderSpi provider)(Code)
	Constructs a new image reader. Parameters: provider - The ImageReaderSpi that is invoking this constructor,or null if none.

Fields inherited from org.geotools.image.io.StreamImageReader

protected Object closeOnReset(Code)(Java Doc)

Methods inherited from org.geotools.image.io.StreamImageReader

protected void close() throws IOException(Code)(Java Doc)
public void dispose()(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
protected InputStream getInputStream() throws IllegalStateException, IOException(Code)(Java Doc)
protected long getStreamLength() throws IOException(Code)(Java Doc)
public void reset()(Code)(Java Doc)
public void setInput(Object input, boolean seekForwardOnly, boolean ignoreMetadata)(Code)(Java Doc)

Fields inherited from org.geotools.image.io.GeographicImageReader

final static Logger LOGGER(Code)(Java Doc)

Methods inherited from org.geotools.image.io.GeographicImageReader

protected void checkBandIndex(int imageIndex, int bandIndex) throws IOException, IndexOutOfBoundsException(Code)(Java Doc)
protected void checkImageIndex(int imageIndex) throws IOException, IndexOutOfBoundsException(Code)(Java Doc)
void close() throws IOException(Code)(Java Doc)
protected boolean collapseNoDataValues(boolean isZeroValid, double[] nodataValues, int unusedSpace)(Code)(Java Doc)
protected static void flipVertically(ImageReadParam param, int srcHeight, Rectangle srcRegion)(Code)(Java Doc)
public ImageReadParam getDefaultReadParam()(Code)(Java Doc)
protected BufferedImage getDestination(int imageIndex, ImageReadParam parameters, int width, int height, SampleConverter[] converters) throws IOException(Code)(Java Doc)
final IndexedResourceBundle getErrorResources()(Code)(Java Doc)
public GeographicMetadata getGeographicMetadata(int imageIndex) throws IOException(Code)(Java Doc)
public IIOMetadata getImageMetadata(int imageIndex) throws IOException(Code)(Java Doc)
public Iterator getImageTypes(int imageIndex) throws IOException(Code)(Java Doc)
public int getNumBands(int imageIndex) throws IOException(Code)(Java Doc)
public int getNumImages(boolean allowSearch) throws IllegalStateException, IOException(Code)(Java Doc)
protected int getRawDataType(int imageIndex) throws IOException(Code)(Java Doc)
public ImageTypeSpecifier getRawImageType(int imageIndex) throws IOException(Code)(Java Doc)
protected ImageTypeSpecifier getRawImageType(int imageIndex, ImageReadParam parameters, SampleConverter[] converters) throws IOException(Code)(Java Doc)
public IIOMetadata getStreamMetadata() throws IOException(Code)(Java Doc)
public BufferedImage read(int imageIndex) throws IOException(Code)(Java Doc)
public void setInput(Object input, boolean seekForwardOnly, boolean ignoreMetadata)(Code)(Java Doc)
public void warningOccurred(LogRecord record)(Code)(Java Doc)

Fields inherited from javax.imageio.ImageReader

protected Locale[] availableLocales(Code)(Java Doc)
protected boolean ignoreMetadata(Code)(Java Doc)
protected Object input(Code)(Java Doc)
protected Locale locale(Code)(Java Doc)
protected int minIndex(Code)(Java Doc)
protected ImageReaderSpi originatingProvider(Code)(Java Doc)
protected List<IIOReadProgressListener> progressListeners(Code)(Java Doc)
protected boolean seekForwardOnly(Code)(Java Doc)
protected List<IIOReadUpdateListener> updateListeners(Code)(Java Doc)
protected List<IIOReadWarningListener> warningListeners(Code)(Java Doc)
protected List<Locale> warningLocales(Code)(Java Doc)

Methods inherited from javax.imageio.ImageReader

public synchronized void abort()(Code)(Java Doc)
protected synchronized boolean abortRequested()(Code)(Java Doc)
public void addIIOReadProgressListener(IIOReadProgressListener listener)(Code)(Java Doc)
public void addIIOReadUpdateListener(IIOReadUpdateListener listener)(Code)(Java Doc)
public void addIIOReadWarningListener(IIOReadWarningListener listener)(Code)(Java Doc)
public boolean canReadRaster()(Code)(Java Doc)
protected static void checkReadParamBandSettings(ImageReadParam param, int numSrcBands, int numDstBands)(Code)(Java Doc)
protected synchronized void clearAbortRequest()(Code)(Java Doc)
protected static void computeRegions(ImageReadParam param, int srcWidth, int srcHeight, BufferedImage image, Rectangle srcRegion, Rectangle destRegion)(Code)(Java Doc)
public void dispose()(Code)(Java Doc)
public float getAspectRatio(int imageIndex) throws IOException(Code)(Java Doc)
public Locale[] getAvailableLocales()(Code)(Java Doc)
public ImageReadParam getDefaultReadParam()(Code)(Java Doc)
protected static BufferedImage getDestination(ImageReadParam param, Iterator<ImageTypeSpecifier> imageTypes, int width, int height) throws IIOException(Code)(Java Doc)
public String getFormatName() throws IOException(Code)(Java Doc)
abstract public int getHeight(int imageIndex) throws IOException(Code)(Java Doc)
abstract public IIOMetadata getImageMetadata(int imageIndex) throws IOException(Code)(Java Doc)
public IIOMetadata getImageMetadata(int imageIndex, String formatName, Set<String> nodeNames) throws IOException(Code)(Java Doc)
abstract public Iterator<ImageTypeSpecifier> getImageTypes(int imageIndex) throws IOException(Code)(Java Doc)
public Object getInput()(Code)(Java Doc)
public Locale getLocale()(Code)(Java Doc)
public int getMinIndex()(Code)(Java Doc)
abstract public int getNumImages(boolean allowSearch) throws IOException(Code)(Java Doc)
public int getNumThumbnails(int imageIndex) throws IOException(Code)(Java Doc)
public ImageReaderSpi getOriginatingProvider()(Code)(Java Doc)
public ImageTypeSpecifier getRawImageType(int imageIndex) throws IOException(Code)(Java Doc)
protected static Rectangle getSourceRegion(ImageReadParam param, int srcWidth, int srcHeight)(Code)(Java Doc)
abstract public IIOMetadata getStreamMetadata() throws IOException(Code)(Java Doc)
public IIOMetadata getStreamMetadata(String formatName, Set<String> nodeNames) throws IOException(Code)(Java Doc)
public int getThumbnailHeight(int imageIndex, int thumbnailIndex) throws IOException(Code)(Java Doc)
public int getThumbnailWidth(int imageIndex, int thumbnailIndex) throws IOException(Code)(Java Doc)
public int getTileGridXOffset(int imageIndex) throws IOException(Code)(Java Doc)
public int getTileGridYOffset(int imageIndex) throws IOException(Code)(Java Doc)
public int getTileHeight(int imageIndex) throws IOException(Code)(Java Doc)
public int getTileWidth(int imageIndex) throws IOException(Code)(Java Doc)
abstract public int getWidth(int imageIndex) throws IOException(Code)(Java Doc)
public boolean hasThumbnails(int imageIndex) throws IOException(Code)(Java Doc)
public boolean isIgnoringMetadata()(Code)(Java Doc)
public boolean isImageTiled(int imageIndex) throws IOException(Code)(Java Doc)
public boolean isRandomAccessEasy(int imageIndex) throws IOException(Code)(Java Doc)
public boolean isSeekForwardOnly()(Code)(Java Doc)
protected void processImageComplete()(Code)(Java Doc)
protected void processImageProgress(float percentageDone)(Code)(Java Doc)
protected void processImageStarted(int imageIndex)(Code)(Java Doc)
protected void processImageUpdate(BufferedImage theImage, int minX, int minY, int width, int height, int periodX, int periodY, int[] bands)(Code)(Java Doc)
protected void processPassComplete(BufferedImage theImage)(Code)(Java Doc)
protected void processPassStarted(BufferedImage theImage, int pass, int minPass, int maxPass, int minX, int minY, int periodX, int periodY, int[] bands)(Code)(Java Doc)
protected void processReadAborted()(Code)(Java Doc)
protected void processSequenceComplete()(Code)(Java Doc)
protected void processSequenceStarted(int minIndex)(Code)(Java Doc)
protected void processThumbnailComplete()(Code)(Java Doc)
protected void processThumbnailPassComplete(BufferedImage theThumbnail)(Code)(Java Doc)
protected void processThumbnailPassStarted(BufferedImage theThumbnail, int pass, int minPass, int maxPass, int minX, int minY, int periodX, int periodY, int[] bands)(Code)(Java Doc)
protected void processThumbnailProgress(float percentageDone)(Code)(Java Doc)
protected void processThumbnailStarted(int imageIndex, int thumbnailIndex)(Code)(Java Doc)
protected void processThumbnailUpdate(BufferedImage theThumbnail, int minX, int minY, int width, int height, int periodX, int periodY, int[] bands)(Code)(Java Doc)
protected void processWarningOccurred(String warning)(Code)(Java Doc)
protected void processWarningOccurred(String baseName, String keyword)(Code)(Java Doc)
public BufferedImage read(int imageIndex) throws IOException(Code)(Java Doc)
abstract public BufferedImage read(int imageIndex, ImageReadParam param) throws IOException(Code)(Java Doc)
public IIOImage readAll(int imageIndex, ImageReadParam param) throws IOException(Code)(Java Doc)
public Iterator<IIOImage> readAll(Iterator<? extends ImageReadParam> params) throws IOException(Code)(Java Doc)
public RenderedImage readAsRenderedImage(int imageIndex, ImageReadParam param) throws IOException(Code)(Java Doc)
public Raster readRaster(int imageIndex, ImageReadParam param) throws IOException(Code)(Java Doc)
public BufferedImage readThumbnail(int imageIndex, int thumbnailIndex) throws IOException(Code)(Java Doc)
public BufferedImage readTile(int imageIndex, int tileX, int tileY) throws IOException(Code)(Java Doc)
public Raster readTileRaster(int imageIndex, int tileX, int tileY) throws IOException(Code)(Java Doc)
public boolean readerSupportsThumbnails()(Code)(Java Doc)
public void removeAllIIOReadProgressListeners()(Code)(Java Doc)
public void removeAllIIOReadUpdateListeners()(Code)(Java Doc)
public void removeAllIIOReadWarningListeners()(Code)(Java Doc)
public void removeIIOReadProgressListener(IIOReadProgressListener listener)(Code)(Java Doc)
public void removeIIOReadUpdateListener(IIOReadUpdateListener listener)(Code)(Java Doc)
public void removeIIOReadWarningListener(IIOReadWarningListener listener)(Code)(Java Doc)
public void reset()(Code)(Java Doc)
public void setInput(Object input, boolean seekForwardOnly, boolean ignoreMetadata)(Code)(Java Doc)
public void setInput(Object input, boolean seekForwardOnly)(Code)(Java Doc)
public void setInput(Object input)(Code)(Java Doc)
public void setLocale(Locale locale)(Code)(Java Doc)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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