org.deegree.io.geotiff
Class GeoTiffReader

java.lang.Object
  org.deegree.io.geotiff.GeoTiffReader

public class GeoTiffReader
extends Object

TIFF type :: Java type
TIFF_BYTE :: byte
TIFF_ASCII :: String
TIFF_SHORT :: char
TIFF_LONG :: long
TIFF_RATIONAL :: long[2]
TIFF_SBYTE :: byte
TIFF_UNDEFINED :: byte
TIFF_SSHORT :: short
TIFF_SLONG :: int
TIFF_SRATIONAL :: int[2]
TIFF_FLOAT :: float
TIFF_DOUBLE :: double

Since:

Version:

2.0. $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $

Author:

Axel Schaefer , last edited by: $Author: mschneider $

Field Summary

(package private) HashMap<Integer,int[]>	geoKeyDirectoryTag
(package private) boolean	hasGeoKeyDirectoryTag
(package private) org.apache.batik.ext.awt.image.codec.tiff.TIFFImage	image
(package private) org.apache.batik.ext.awt.image.codec.tiff.TIFFDirectory	tifdir

Constructor Summary

GeoTiffReader(File file)

Method Summary

Envelope	getBoundingBox()
void	getCoordinateSystem()
String[]	getGeoAsciiParamsTag() GeoAsciiParamsTag: Tag = 34737 (87B1.H) Type = ASCII Owner: SPOT Image, Inc.
Object	getGeoDoubleParamsTag() GeoDoubleParamsTag: Tag = 34736 (87BO.H) Type = DOUBLE (IEEE Double precision) N = variable Owner: SPOT Image, Inc.
int	getGeoKeyDirectoryVersion()
int	getGTModelTypeGeoKey() Key ID = 1024 Type: SHORT (code) This GeoKey defines the general type of model Coordinate system used, and to which the raster space will be transformed:unknown, Geocentric (rarely used), Geographic, Projected Coordinate System, or user-defined.
String	getHumanReadableCoordinateSystem()
String	getKeyRevision()
int	getNumberOfKeysInGeoKeyDirectoryTag()
org.apache.batik.ext.awt.image.codec.tiff.TIFFImage	getTIFFImage()
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

image

org.apache.batik.ext.awt.image.codec.tiff.TIFFImage image

tifdir

org.apache.batik.ext.awt.image.codec.tiff.TIFFDirectory tifdir

geoKeyDirectoryTag

HashMap<Integer,int[]> geoKeyDirectoryTag

hasGeoKeyDirectoryTag

boolean hasGeoKeyDirectoryTag

Constructor Detail

GeoTiffReader

public GeoTiffReader(File file)
              throws FileNotFoundException,
                     IOException,
                     GeoTiffException

Parameters:

file -

Throws:

FileNotFoundException

IOException

GeoTiffException

Method Detail

getGeoDoubleParamsTag

public Object getGeoDoubleParamsTag()

GeoDoubleParamsTag:
Tag = 34736 (87BO.H)
Type = DOUBLE (IEEE Double precision)
N = variable
Owner: SPOT Image, Inc.

This tag is used to store all of the DOUBLE valued GeoKeys, referenced by the GeoKeyDirectoryTag. The meaning of any value of this double array is determined from the GeoKeyDirectoryTag reference pointing to it. FLOAT values should first be converted to DOUBLE and stored here.

Returns:

null

getGeoAsciiParamsTag

public String[] getGeoAsciiParamsTag()

GeoAsciiParamsTag:
Tag = 34737 (87B1.H)
Type = ASCII
Owner: SPOT Image, Inc.
N = variable

This tag is used to store all of the DOUBLE valued GeoKeys, referenced by the GeoKeyDirectoryTag. The meaning of any value of this double array is determined from the GeoKeyDirectoryTag reference pointing to it. FLOAT values should first be converted to DOUBLE and stored here.

A baseline GeoTIFF-reader must check for and convert the final "|" pipe character of a key back into a NULL before returning it to the client software.

Returns:

the fields

getGeoKeyDirectoryVersion

public int getGeoKeyDirectoryVersion()
                              throws GeoTiffException

Returns:

fixed 1

Throws:

GeoTiffException

getKeyRevision

public String getKeyRevision()
                      throws GeoTiffException

Returns:

the rev

Throws:

GeoTiffException

getNumberOfKeysInGeoKeyDirectoryTag

public int getNumberOfKeysInGeoKeyDirectoryTag()
                                        throws GeoTiffException

Returns:

the number

Throws:

GeoTiffException

getGTModelTypeGeoKey

public int getGTModelTypeGeoKey()
                         throws GeoTiffException

Key ID = 1024
Type: SHORT (code)

This GeoKey defines the general type of model Coordinate system used, and to which the raster space will be transformed:unknown, Geocentric (rarely used), Geographic, Projected Coordinate System, or user-defined. If the coordinate system is a PCS, then only the PCS code need be specified. If the coordinate system does not fit into one of the standard registered PCS'S, but it uses one of the standard projections and datums, then its should be documented as a PCS model with "user-defined" type, requiring the specification of projection parameters, etc.

GeoKey requirements for User-Defined Model Type (not advisable): GTCitationGeoKey

Returns:

(0) unknown,
(1) ModelTypeProjected (Projection Coordinate System),
(2) ModelTypeGeographic (Geographic latitude-longitude System),
(3) ModelTypeGeocentric (Geocentric (X,Y,Z) Coordinate System) (rarely used),
(4?) user-defined

Throws:

GeoTiffException

getCoordinateSystem

public void getCoordinateSystem()
                         throws GeoTiffException

Throws:

GeoTiffException

getBoundingBox

public Envelope getBoundingBox()
                        throws GeoTiffException

Returns:

the bbox

Throws:

GeoTiffException

getHumanReadableCoordinateSystem

public String getHumanReadableCoordinateSystem()

Returns:

the crs

getTIFFImage

public org.apache.batik.ext.awt.image.codec.tiff.TIFFImage getTIFFImage()
                                                                 throws GeoTiffException

Returns:

the image

Throws:

GeoTiffException

toString

public String toString()

Overrides:

toString in class Object