Interface | Description |
---|---|
IFitsHeader |
Class | Description |
---|---|
FitsHeaderImpl | |
GenericKey |
generic key interface, create an IFitsHeader from a key.
|
Enum | Description |
---|---|
Checksum |
File checksum keywords.
|
Compression |
The following keywords are defined by the compression convention for use in
the header of the FITS binary table extension to describe the structure of
the compressed image.
|
DataDescription |
This data dictionary contains FITS keywords that have been widely used within
the astronomical community.
|
HierarchicalGrouping |
This data dictionary contains FITS keywords that have been widely used within
the astronomical community.
|
IFitsHeader.HDU | |
IFitsHeader.SOURCE | |
IFitsHeader.VALUE | |
InstrumentDescription |
This data dictionary contains FITS keywords that have been widely used within
the astronomical community.
|
NonStandard |
This data dictionary contains FITS keywords that have been widely used within
the astronomical community.
|
ObservationDescription |
This data dictionary contains FITS keywords that have been widely used within
the astronomical community.
|
ObservationDurationDescription |
This data dictionary contains FITS keywords that have been widely used within
the astronomical community.
|
Standard |
This data dictionary lists the 53 keywords currently defined in the FITS
Standard.
|
Synonyms |
This enum wil try to list synonyms inside or over different dictionaries.
|
There many many sources of FITS keywords. In addition to the standards documents many organisations (or groups of organisations) have defined their own sets of keywords. This results in many different dictionaries with partly overlapping definitions. To help the "normal" user of FITS files with these we started to collect the standards and will try to include them in this library to ease the use of the "right" keyword.
These dictionaries are organized in a hierarchical form, that means every dictionary extends the list of keywords of another dictionary. The root of this tree of dictionaries is the dictionary used in the standard text itself. Under that is a dictionary that resulted from different libraries that used the same keywords, these are collected in a dictionary with commonly used keywords.
These enumerations of keywords (dictionaries) can be found in and under the
packages:
nom.tam.fits.header
nom.tam.fits.header.extra
Currently we include:
Standard source: [http://heasarc.gsfc.nasa.gov/docs/fcg/standard_dict.html](http://heasarc.gsfc.nasa.gov/docs/fcg/standard_dict.html) | Common standard inherits from Standard source: [http://heasarc.gsfc.nasa.gov/docs/fcg/common_dict.html](http://heasarc.gsfc.nasa.gov/docs/fcg/common_dict.html) | NOAO inherits from Common standard source: [http://iraf.noao.edu/iraf/web/projects/ccdmosaic/imagedef/fitsdic.html](http://iraf.noao.edu/iraf/web/projects/ccdmosaic/imagedef/fitsdic.html) SBFits inherits from Common standard source: [http://archive.sbig.com/pdffiles/SBFITSEXT_1r0.pdf](http://archive.sbig.com/pdffiles/SBFITSEXT_1r0.pdf) MaxImDL inherits from SBFits source: [http://www.cyanogen.com/help/maximdl/FITS_File_Header_Definitions.htm](http://www.cyanogen.com/help/maximdl/FITS_File_Header_Definitions.htm) CXCStclShared inherits from Common standard source: we found these duplicated CXC inherits from CXCStclShared source: [http://cxc.harvard.edu/contrib/arots/fits/content.txt](http://cxc.harvard.edu/contrib/arots/fits/content.txt) STScI inherits from CXCStclShared source: [http://tucana.noao.edu/ADASS/adass_proc/adass_95/zaraten/zaraten.html](http://tucana.noao.edu/ADASS/adass_proc/adass_95/zaraten/zaraten.html) |
All duplicates where eliminated from enumerations including the enumerations that where already defined in one of the "parent" standards. So always use a keyword of one of the higher level standards when possible.
Furthermore there are synonym keywords inside and over dictionaries, These we also started to collect in the Synonyms class in the header package. So you can easily find the primary keyword to use instead of the synonym.
All these enums have no real effect for now in the library apart from the fact that you can now make compiler checked references to keywords (No more pruney String references). Future versions of the library will try to validate against them and warn you if you appear to be using a keyword inapprpopriately (in the wrong HDU, wrong type, etc) deprecated keyword.
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