psFitsTable.h

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/* @file  psFitsTable.h
 * @brief Contains Fits I/O routines
 *
 * @author EAM, PAP, JH
 * @author Robert DeSonia, MHPCC
 *
 * @version $Revision: 1.6 $ $Name:  $
 * @date $Date: 2007/01/23 22:47:23 $
 * Copyright 2004-2005 Maui High Performance Computing Center, University of Hawaii
 */

#ifndef PS_FITSTABLE_H
#define PS_FITSTABLE_H

/// @addtogroup FileIO Input/Output
/// @{

#include "psFits.h"

#include "psType.h"
#include "psArray.h"
#include "psVector.h"
#include "psMetadata.h"
#include "psImage.h"

/** Reads a table row.  The current HDU type must be either
 *  PS_FITS_TYPE_BINARY_TABLE or PS_FITS_TYPE_ASCII_TABLE.
 *
 *  @return psMetadata*    The table row's data.  The keys are the column names.
 */
psMetadata* psFitsReadTableRow(
    const psFits* fits,                ///< the psFits object
    int row                            ///< row number to read
);

/** Reads a table column.  The current HDU type must be either
 *  PS_FITS_TYPE_BINARY_TABLE or PS_FITS_TYPE_ASCII_TABLE.
 *
 *  @return psArray*    Array of data items for the specified column or NULL
 *                      if an error occurred.
 */
psArray* psFitsReadTableColumn(
    const psFits* fits,                ///< the psFits object
    const char* colname                ///< the column name
);

/** Reads a table column of numbers.  The current HDU type must be either
 *  PS_FITS_TYPE_BINARY_TABLE or PS_FITS_TYPE_ASCII_TABLE.
 *
 *  @return psVector*    Vector of data for the specified column or NULL
 *                       if an error occurred.
 */
psVector* psFitsReadTableColumnNum(
    const psFits* fits,                ///< the psFits object
    const char* colname                ///< the column name
);


/** Reads a whole FITS table.  The current HDU type must be either
 *  PS_FITS_TYPE_BINARY_TABLE or PS_FITS_TYPE_ASCII_TABLE.
 *
 *  @return psArray*     Array of psMetadata items, which contains the output
 *                       data items of each row.
 *
 *  @see psFitsReadTableRow
 */
psArray* psFitsReadTable(
    const psFits* fits                  ///< the psFits object
);

/** Writes a whole FITS table. A new HDU of the type BINTABLE is appended
 *  to the file.
 *
 *  @return bool        TRUE if the write was successful, otherwise FALSE
 *
 *  @see psFitsReadTable
 *  @see psFitsInsertTable
 */
bool psFitsWriteTable(
    psFits* fits,                      ///< the psFits object
    const psMetadata* header,          ///< header items for the new HDU.  Can be NULL.
    const psArray* table, ///< Array of psMetadata items, which contains the output data items of each row.
    const char *extname                 ///< Extension name
);

/** Inserts a whole FITS table. A new HDU of the type BINTABLE is inserted either
 *  before or after, depending on the AFTER parameter, the current HDU.
 *
 *  @return bool        TRUE if the insert/write was successful, otherwise FALSE
 *
 *  @see psFitsWriteTable
 */
bool psFitsInsertTable(
    psFits* fits,                  ///< the psFits object
    const psMetadata* header,      ///< header items for the new HDU.  Can be NULL.
    const psArray* table, ///< Array of psMetadata items, which contains the output data items of each row.
    const char *extname,                ///< Extension name
    bool after    ///< TRUE if insert is done after CHDU, otherwise table is inserted before CHDU
);

/** Updates a FITS table.  The current HDU type must be either
 *  PS_FITS_TYPE_BINARY_TABLE or PS_FITS_TYPE_ASCII_TABLE.
 *
 *  @return bool        TRUE if the write was successful, otherwise FALSE
 *
 *  @see psFitsWriteTable
 */
bool psFitsUpdateTable(
    psFits* fits,                      ///< the psFits object
    const psMetadata* data,
    ///< Array of psMetadata items, which contains the output data items of each row.
    int row                            ///< the row number to update.
);

/// @}
#endif // #ifndef PS_FITS_H

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