nom.tam.fits
Class ImageHDU

java.lang.Object
  nom.tam.fits.BasicHDU
      nom.tam.fits.ImageHDU

All Implemented Interfaces:

FitsElement

public class ImageHDU
extends BasicHDU

FITS image header/data unit

Field Summary

Fields inherited from class nom.tam.fits.BasicHDU

BITPIX_BYTE, BITPIX_DOUBLE, BITPIX_FLOAT, BITPIX_INT, BITPIX_LONG, BITPIX_SHORT, isPrimary, myData, myHeader

Constructor Summary

ImageHDU(Header h, Data d)
Build an image HDU using the supplied data.

Method Summary

protected boolean	canBePrimary() Indicate that Images can appear at the beginning of a FITS dataset
static Data	encapsulate(java.lang.Object o) Encapsulate an object as an ImageHDU.
ImageTiler	getTiler()
void	info() Print out some information about this HDU.
static boolean	isData(java.lang.Object o) Check if this object can be described as a FITS image.
static boolean	isHeader(Header hdr) Check that this HDU has a valid header for this type.
Data	manufactureData() Create a Data object to correspond to the header description.
static Data	manufactureData(Header hdr)
static Header	manufactureHeader(Data d) Create a header that describes the given image data.
protected void	setPrimaryHDU(boolean status) Change the Image from/to primary

Methods inherited from class nom.tam.fits.BasicHDU

addValue, addValue, addValue, addValue, getAuthor, getAxes, getBitPix, getBlankValue, getBScale, getBUnit, getBZero, getCreationDate, getData, getDummyHDU, getEpoch, getEquinox, getFileOffset, getGroupCount, getHeader, getInstrument, getKernel, getMaximumValue, getMinimumValue, getObject, getObservationDate, getObserver, getOrigin, getParameterCount, getReference, getSize, getTelescope, getTrimmedString, read, readData, rewrite, rewriteable, skipData, skipData, write

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageHDU

public ImageHDU(Header h,
                Data d)
         throws FitsException

Build an image HDU using the supplied data.

Parameters:

obj - the data used to build the image.

Throws:

FitsException - if there was a problem with the data.

Method Detail

canBePrimary

protected boolean canBePrimary()

Indicate that Images can appear at the beginning of a FITS dataset

setPrimaryHDU

protected void setPrimaryHDU(boolean status)

Change the Image from/to primary

isHeader

public static boolean isHeader(Header hdr)

Check that this HDU has a valid header for this type.

Returns:

true if this HDU has a valid header.

isData

public static boolean isData(java.lang.Object o)

Check if this object can be described as a FITS image.

Parameters:

o - The Object being tested.

manufactureData

public Data manufactureData()
                     throws FitsException

Create a Data object to correspond to the header description.

Returns:

An unfilled Data object which can be used to read in the data for this HDU.

Throws:

FitsException - if the image extension could not be created.

manufactureData

public static Data manufactureData(Header hdr)
                            throws FitsException

Throws:

FitsException

manufactureHeader

public static Header manufactureHeader(Data d)
                                throws FitsException

Create a header that describes the given image data.

Parameters:

o - The image to be described.

Throws:

FitsException - if the object does not contain valid image data.

encapsulate

public static Data encapsulate(java.lang.Object o)
                        throws FitsException

Encapsulate an object as an ImageHDU.

Throws:

FitsException

getTiler

public ImageTiler getTiler()

info

public void info()

Print out some information about this HDU.

Specified by:

info in class BasicHDU