Package org.geotiff.image.jai

Class GeoTIFFDirectory

java.lang.Object

org.libtiff.jai.codec.XTIFFDirectory

org.geotiff.image.jai.GeoTIFFDirectory

All Implemented Interfaces:

Serializable

public class GeoTIFFDirectory
extends XTIFFDirectory
implements Serializable

An extension of the XTIFFDirectory that understands the structure of the GeoTIFF key set

Author:

Niles D. Ritter

See Also:

Serialized Form

Field Summary

Fields inherited from class org.libtiff.jai.codec.XTIFFDirectory

factory, stream, tileCodecs

Constructor Summary

Constructors

Constructor	Description
GeoTIFFDirectory()	public constructor (for serializability)
GeoTIFFDirectory(com.sun.media.jai.codec.SeekableStream stream, int directory)	Constructs a GeoTIFFDirectory from a SeekableStream.
GeoTIFFDirectory(com.sun.media.jai.codec.SeekableStream stream, long ifd_offset)	Constructs a GeoTIFFDirectory by reading a SeekableStream.

Method Summary

Modifier and Type	Method	Description
void	addGeoKey(int key, int type, int count, Object data)	Add a geoKey to the directory
void	addGeoKey(XTIFFField geoKey)	Add an existing geoKey to the directory.
XTIFFField[]	getFields()	Returns an array of XTIFFFields containing all the fields in this directory.
XTIFFField	getGeoKey(int key)	Indexed Accessor to the Geokeys,indexed by the key values.
XTIFFField[]	getGeoKeys()	Returns an array of XTIFFFields containing all the fields corresponding to the GeoKeys.
double[]	getPixelScale()	return the pixel scale tag values
double[]	getTiepoints()	return the tiepoint tag values
double[]	getTransformationMatrix()	return the transformation matrix tag values
void	setPixelScale(double[] scales)	return the pixel scale tag values
void	setTiepoints(double[] tiepoints)	set the tiepoint tag values
void	setTransformationMatrix(double[] matrix)	return the pixel scale tag values

Methods inherited from class org.libtiff.jai.codec.XTIFFDirectory

addField, addField, create, create, create, createField, createTileCodec, createTileCodec, getCompression, getField, getFieldAsByte, getFieldAsByte, getFieldAsDouble, getFieldAsDouble, getFieldAsFloat, getFieldAsFloat, getFieldAsLong, getFieldAsLong, getImageType, getNumDirectories, getNumEntries, getTags, getTileCodec, initialize, isBigEndian, isTagPresent, isTiled, readDouble, readFieldValue, readFloat, readHeader, readInt, readLong, readShort, readUnsignedInt, readUnsignedShort, registerTileCodec, setCompression, setFactory, setImageType, setIsTiled, sizeOfType, unRegisterTileCodec

Methods inherited from class java.lang.Object

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

Constructor Detail

GeoTIFFDirectory

public GeoTIFFDirectory()

public constructor (for serializability)

GeoTIFFDirectory

public GeoTIFFDirectory(com.sun.media.jai.codec.SeekableStream stream,
                        long ifd_offset)
                 throws IOException

Constructs a GeoTIFFDirectory by reading a SeekableStream. The ifd_offset parameter specifies the stream offset from which to begin reading; this mechanism is sometimes used to store private IFDs within a TIFF file that are not part of the normal sequence of IFDs.

Throws:

IOException

GeoTIFFDirectory

public GeoTIFFDirectory(com.sun.media.jai.codec.SeekableStream stream,
                        int directory)
                 throws IOException

Constructs a GeoTIFFDirectory from a SeekableStream. The directory parameter specifies which directory to read from the linked list present in the stream; directory 0 is normally read but it is possible to store multiple images in a single TIFF file by maintaing multiple directories.

Throws:

IOException

Method Detail

getFields

public XTIFFField[] getFields()

Returns an array of XTIFFFields containing all the fields in this directory. Prior to returning array, determine if there are any GeoKeys, and if so, set up the corresponding GeoTIFF fields.

Overrides:

getFields in class XTIFFDirectory

addGeoKey

public void addGeoKey(int key,
                      int type,
                      int count,
                      Object data)

Add a geoKey to the directory

addGeoKey

public void addGeoKey(XTIFFField geoKey)

Add an existing geoKey to the directory.

getGeoKeys

public XTIFFField[] getGeoKeys()

Returns an array of XTIFFFields containing all the fields corresponding to the GeoKeys.

getGeoKey

public XTIFFField getGeoKey(int key)

Indexed Accessor to the Geokeys,indexed by the key values.

getTiepoints

public double[] getTiepoints()

return the tiepoint tag values

getPixelScale

public double[] getPixelScale()

return the pixel scale tag values

getTransformationMatrix

public double[] getTransformationMatrix()

return the transformation matrix tag values

setTiepoints

public void setTiepoints(double[] tiepoints)

set the tiepoint tag values

setPixelScale

public void setPixelScale(double[] scales)

return the pixel scale tag values

setTransformationMatrix

public void setTransformationMatrix(double[] matrix)

return the pixel scale tag values