Class UndefinedHDU

java.lang.Object

nom.tam.fits.BasicHDU<UndefinedData>

nom.tam.fits.UndefinedHDU

All Implemented Interfaces:

FitsElement

public class UndefinedHDU
extends BasicHDU<UndefinedData>

Holder for unknown data types.

Field Summary

Fields inherited from class BasicHDU

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

Constructor Summary

Constructors

Constructor	Description
UndefinedHDU(Header h, UndefinedData d)	Build an image HDU using the supplied data.

Method Summary

Modifier and Type	Method	Description
static UndefinedData	encapsulate(Object o)
void	info(PrintStream stream)	Print out some information about this HDU.
static boolean	isData(Object o)	Check if we can use the following object as in an Undefined FITS block.
static boolean	isHeader(Header hdr)	Check if we can find the length of the data for this header.
static Data	manufactureData(Header hdr)
static Header	manufactureHeader(Data d)

Methods inherited from class BasicHDU

addValue, addValue, addValue, addValue, addValue, addValue, addValue, addValue, canBePrimary, card, 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, getTrimmedString, read, reset, rewrite, rewriteable, saveReplaceCard, setPrimaryHDU, write

Methods inherited from class Object

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

Constructor Details

UndefinedHDU

public UndefinedHDU(Header h,
 UndefinedData d)
             throws FitsException

Build an image HDU using the supplied data.

Parameters:

h - the header for this HDU

d - the data used to build the image.

Throws:

FitsException - if there was a problem with the data.

Method Details

encapsulate

public static UndefinedData encapsulate(Object o)
                                 throws FitsException

Parameters:

o - the object to encapsulate

Returns:

Encapsulate an object as an ImageHDU.

Throws:

FitsException - if the operation failed

isData

public static boolean isData(Object o)

Check if we can use the following object as in an Undefined FITS block. We allow this so long as computeLSize can get a size. Note that computeLSize may be wrong!

Parameters:

o - The Object being tested.

Returns:

true if o can be an Undefined FITS block.

isHeader

public static boolean isHeader(Header hdr)

Check if we can find the length of the data for this header.

Parameters:

hdr - header to check.

Returns:

true if this HDU has a valid header.

manufactureData

public static Data manufactureData(Header hdr)
                            throws FitsException

Throws:

FitsException

manufactureHeader

public static Header manufactureHeader(Data d)
                                throws FitsException

Parameters:

d - The image to be described.

Returns:

Create a header that describes the given image data.

Throws:

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

info

public void info(PrintStream stream)

Description copied from class: BasicHDU

Print out some information about this HDU.

Specified by:

info in class BasicHDU<UndefinedData>

Parameters:

stream - the printstream to write the info on