SUBROUTINE ADI2_MOVHDU( FID, HDU, ID, STATUS ) *+ * Name: * ADI2_MOVHDU * Purpose: * Locate HDU and set FITSIO HDU cursor to that HDU * Language: * Starlink Fortran * Invocation: * CALL ADI2_MOVHDU( FID, HDU, ID, STATUS ) * Description: * Locates (and creates if necessary) the buffer structures for storing * FITS keyword data in FITSfile derived classes * Arguments: * FID = INTEGER (given) * ADI identifier of FITSfile object * HDU = CHARACTER*(*) (given) * Logical HDU whose keyword this is. Blank for primary * ID = INTEGER (returned) * ADI identifier of FITSfile object * STATUS = INTEGER (given and returned) * The global status. * Examples: * {routine_example_text} * {routine_example_description} * Pitfalls: * {pitfall_description}... * Notes: * {routine_notes}... * Prior Requirements: * {routine_prior_requirements}... * Side Effects: * {routine_side_effects}... * Algorithm: * {algorithm_description}... * Accuracy: * {routine_accuracy} * Timing: * {routine_timing} * External Routines Used: * {name_of_facility_or_package}: * {routine_used}... * Implementation Deficiencies: * {routine_deficiencies}... * References: * ADI Subroutine Guide : http://www.sr.bham.ac.uk/asterix-docs/Programmer/Guides/adi.html * Keywords: * package:adi, usage:private, FITS * Copyright: * Copyright (C) University of Birmingham, 1995 * Authors: * DJA: David J. Allan (Jet-X, University of Birmingham) * {enter_new_authors_here} * History: * 2 Feb 1995 (DJA): * Original version. * {enter_changes_here} * Bugs: * {note_any_bugs_here} *- * Type Definitions: IMPLICIT NONE ! No implicit typing * Global Constants: INCLUDE 'SAE_PAR' ! Standard SAE constants * Arguments Given: INTEGER FID ! File identifier CHARACTER*(*) HDU ! HDU name * Arguments Returned: INTEGER ID ! Structure identifier * Status: INTEGER STATUS ! Global status * Local Variables: INTEGER FSTAT ! FITSIO status INTEGER HDUTYPE ! HDU type INTEGER LUN ! Logical unit INTEGER NHDU ! HDU number LOGICAL CREATED ! HDU already exists? *. * Check inherited global status. IF ( STATUS .NE. SAI__OK ) RETURN * Locate the HDU, forcing its creation CALL ADI2_LOCHDU( FID, HDU, ID, STATUS ) * Get the HDU number CALL ADI_CGET0I( FID, 'Nhdu', NHDU, STATUS ) * Ensure previous HDU's data areas are defined IF ( NHDU .GT. 1 ) THEN CALL ADI2_CHKPRV( FID, NHDU-1, .FALSE., STATUS ) END IF * Move the specified unit CALL ADI2_GETLUN( FID, LUN, STATUS ) FSTAT = 0 CALL ADI_CGET0L( ID, 'Created', CREATED, STATUS ) IF ( .NOT. CREATED ) THEN CALL FTCRHD( LUN, FSTAT ) IF ( FSTAT .NE. 0 ) THEN CALL ADI2_FITERP( FSTAT, STATUS ) END IF CALL ADI_CPUT0L( ID, 'Created', .TRUE., STATUS ) END IF CALL FTMAHD( LUN, NHDU, HDUTYPE, FSTAT ) IF ( FSTAT .EQ. 107 ) FSTAT = 0 IF ( FSTAT .NE. 0 ) THEN CALL ADI2_FITERP( FSTAT, STATUS ) END IF * Report any errors IF ( STATUS .NE. SAI__OK ) CALL AST_REXIT( 'ADI2_MOVHDU', STATUS ) END