Method Detail

• performSearch

  uk.ac.starlink.table.StarTable performSearch(double ra,
                                               double dec,
                                               double sr)
                                        throws java.io.IOException

  Returns a table consisting of all the objects within a given search radius of a specified point on the sky. If no matching objects are found, then it is preferable to return an empty table with the correct columns. However, if this cannot be done, it is permissible to return null. For every table returned, the columns should be the same.

  Parameters:

  ra - right ascension in degrees of search region centre

  dec - declination in degrees of search region centre

  sr - search radius in degrees

  Returns:

  table containing records in the given cone, or possibly null if no records are found

  Throws:

  java.io.IOException

• getRaIndex

  int getRaIndex(uk.ac.starlink.table.StarTable result)

  Returns the index of a column giving the right ascension in the returned table. This should be the same quantity which is used for the match assessment.

  Parameters:

  result - table returned by performSearch

  Returns:

  index of RA column, or -1 if it can't be found

• getDecIndex

  int getDecIndex(uk.ac.starlink.table.StarTable result)

  Returns the index of a column giving the declination in the returned table. This should be the same quantity which is used for the match assessment.

  Parameters:

  result - table returned by performSearch

  Returns:

  index of dec column, or -1 if it can't be found

• close

  void close()

  Called when this searcher is no longer required.