SUBROUTINE ADI2_LOCHDU( FID, HDU, ID, STATUS ) *+ * Name: * ADI2_LOCHDU * Purpose: * Locate HDU buffer structure in FITSfile object * Language: * Starlink Fortran * Invocation: * CALL ADI2_LOCHDU( 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: LOGICAL CREATED ! Did we create object? *. * Check inherited global status. IF ( STATUS .NE. SAI__OK ) RETURN * Locate the HDU CALL ADI2_LOCHDU1( FID, HDU, .TRUE., ID, CREATED, STATUS ) * Report any errors IF ( STATUS .NE. SAI__OK ) CALL AST_REXIT( 'ADI2_LOCHDU', STATUS ) END SUBROUTINE ADI2_LOCHDU1( FID, HDU, CANCRE, ID, CREATED, STATUS ) *+ * Name: * ADI2_LOCHDU1 * Purpose: * Locate HDU buffer structure in FITSfile object * Language: * Starlink Fortran * Invocation: * CALL ADI2_LOCHDU1( FID, HDU, CANCRE, ID, CREATED, 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 = CHARSCTER*(*) (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 LOGICAL CANCRE ! Can create? * Arguments Returned: INTEGER ID ! Structure identifier LOGICAL CREATED ! Did we create object? * Status: INTEGER STATUS ! Global status * External References: EXTERNAL CHR_LEN INTEGER CHR_LEN * Local Variables: CHARACTER*40 LHDU ! Local copy of HDU INTEGER HCID ! HDU container INTEGER HLEN ! Length of LHDU INTEGER I ! Loop over LHDU LOGICAL THERE ! Object exists *. * Check inherited global status. IF ( STATUS .NE. SAI__OK ) RETURN * Initialise IF ( CANCRE ) CREATED = .FALSE. * Locate HDU container CALL ADI_FIND( FID, 'Hdus', HCID, STATUS ) * Locate the approriate place depending on the HDU value. Blank means * primary HDU IF ( HDU(1:1) .EQ. ' ' ) THEN LHDU = 'PRIMARY' HLEN = 7 * Otherwise named HDU in the EXTENSIONS structure ELSE * Make local copy of name, and translate embedded spaces to underscores LHDU = HDU HLEN = CHR_LEN(LHDU) IF ( INDEX(LHDU(:HLEN),' ') .GT. 0 ) THEN DO I = 1, HLEN IF ( LHDU(I:I) .EQ. ' ' ) LHDU(I:I) = '_' END DO END IF END IF * Has HDU been created yet? CALL ADI_THERE( HCID, LHDU(:HLEN), THERE, STATUS ) IF ( CANCRE .AND. .NOT. THERE ) THEN CALL ADI2_NEWHDU( FID, HDU, STATUS ) CREATED = .TRUE. END IF CALL ADI_FIND( HCID, LHDU(:HLEN), ID, STATUS ) * Release HDU container CALL ADI_ERASE( HCID, STATUS ) END