uk.ac.starlink.fits
Class FitsTableWriter
java.lang.Object
|
+--uk.ac.starlink.table.StreamStarTableWriter
|
+--uk.ac.starlink.fits.AbstractFitsTableWriter
|
+--uk.ac.starlink.fits.FitsTableWriter
- All Implemented Interfaces:
- StarTableWriter
- public class FitsTableWriter
- extends AbstractFitsTableWriter
Handles writing of a StarTable in FITS binary format.
Not all columns can be written to a FITS table, only those ones
whose contentClass is in the following list:
- Boolean
- Character
- Byte
- Short
- Integer
- Long
- Float
- Double
- Character
- String
- boolean[]
- char[]
- byte[]
- short[]
- int[]
- long[]
- float[]
- double[]
- String[]
In all other cases a warning message will be logged and the column
will be ignored for writing purposes.
Output is currently to fixed-width columns only. For StarTable columns
of variable size, a first pass is made through the table data to
determine the largest size they assume, and the size in the output
table is set to the largest of these. Excess space is padded
with some sort of blank value (NaN for floating point values,
spaces for strings, zero-like values otherwise).
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
FitsTableWriter
public FitsTableWriter()
looksLikeFile
public boolean looksLikeFile(String location)
- Returns true if location ends with something like ".fit"
or ".fits" or ".fts".
- Parameters:
location
- filename
- Returns:
- true if it sounds like a fits file
writePrimaryHDU
public void writePrimaryHDU(StarTable startab,
FitsTableSerializer fitser,
DataOutput out)
throws IOException
- Description copied from class:
AbstractFitsTableWriter
- Writes the primary HDU. This cannot contain the table since
BINTABLE HDUs can only be extensions.
- Specified by:
writePrimaryHDU
in class AbstractFitsTableWriter
- Parameters:
startab
- the table which will be written into the next HDUfitser
- fits serializer initialised from table
out
- destination stream
IOException
createSerializer
protected FitsTableSerializer createSerializer(StarTable table)
throws IOException
- Description copied from class:
AbstractFitsTableWriter
- Provides a suitable serializer for a given table.
- Specified by:
createSerializer
in class AbstractFitsTableWriter
- Parameters:
table
- table to serialize
- Returns:
- FITS serializer
IOException