SUBROUTINE BDI1_MAPERR( NARG, ARGS, OARG, STATUS ) *+ * Name: * BDI1_MAPERR * Purpose: * Service FileItemMap requests for the virtual Error field of BinDS * Language: * Starlink Fortran * Invocation: * CALL BDI1_MAPERR( NARG, ARGS, OARG, STATUS ) * Description: * Provides mapping for the 'Error' class member of BinDS derived * objects in HDS files. This member is derived from the VARIANCE * file object. * Arguments: * NARG = INTEGER (given) * Number of method arguments * ARGS(*) = INTEGER (given) * ADI identifier of method arguments * OARG = INTEGER (returned) * Output data * 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: * BDI Subroutine Guide : http://www.sr.bham.ac.uk/asterix-docs/Programmer/Guides/bdi.html * Keywords: * package:bdi, usage:private * Copyright: * Copyright (C) University of Birmingham, 1995 * Authors: * DJA: David J. Allan (Jet-X, University of Birmingham) * {enter_new_authors_here} * History: * 9 Aug 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 INCLUDE 'ADI_PAR' INCLUDE 'DAT_PAR' * Arguments Given: INTEGER NARG, ARGS(*) * Arguments Returned: INTEGER OARG * Status: INTEGER STATUS ! Global status * Local Variables: CHARACTER*(DAT__SZLOC) CLOC ! New component CHARACTER*6 MODE CHARACTER*7 TYPE INTEGER NELM ! Number of data items INTEGER PSID ! Items private store INTEGER PTR ! Mapped data address *. * Check inherited global status. IF ( STATUS .NE. SAI__OK ) RETURN * Default return value OARG = ADI__NULLID * Extract the arguments CALL ADI_GET0C( ARGS(4), TYPE, STATUS ) CALL ADI_GET0C( ARGS(5), MODE, STATUS ) * Ensure objects satisfy mapping requirement CALL BDI1_CFIND( ARGS(1), ARGS(2), 'Variance', : (MODE.EQ.'WRITE'), CLOC, STATUS ) * Everything ok? IF ( STATUS .EQ. SAI__OK ) THEN * Locate the BDI private storage for the item, creating if required CALL BDI0_LOCPST( ARGS(1), 'Error', .TRUE., PSID, STATUS ) * Write mode? IF ( MODE .EQ. 'WRITE' ) THEN * Simply map for write access CALL BDI1_ARYMAP( CLOC, TYPE, MODE, .TRUE., PSID, PTR, : NELM, STATUS ) ELSE * Map existing data CALL BDI1_ARYMAP( CLOC, TYPE, MODE, .TRUE., PSID, PTR, : NELM, STATUS ) * Convert variance to error IF ( TYPE .EQ. 'REAL' ) THEN CALL BDI1_MAPERR_V2ER( NELM, %VAL(PTR), STATUS ) ELSE IF ( TYPE .EQ. 'DOUBLE' ) THEN CALL BDI1_MAPERR_V2ED( NELM, %VAL(PTR), STATUS ) ELSE STATUS = SAI__ERROR CALL MSG_SETC( 'T', TYPE ) CALL ERR_REP( 'BDI1_MAPERR_1', 'Mapping Error for '/ : /'read/update access and type ^T is '/ : /'not currently supported', STATUS ) END IF END IF * Release private storage CALL ADI_ERASE( PSID, STATUS ) * Release object CALL DAT_ANNUL( CLOC, STATUS ) END IF * Report any errors IF ( STATUS .NE. SAI__OK ) CALL AST_REXIT( 'BDI1_MAPERR', STATUS ) END SUBROUTINE BDI1_MAPERR_V2ER( N, VAR, STATUS ) *+ * Name: * BDI1_MAPERR_V2ER * Purpose: * Convert REAL variance to error in situ * Language: * Starlink Fortran * Invocation: * CALL BDI1_MAPERR_V2ER( N, VAR, STATUS ) * Description: * Convert REAL variance to error in situ. Duff variance values (<0) are * converted to zero errors. This is done because generally such bad * variance values are ignored due to an accompanying bad quality. We * don't want to report errors unnecessarily. * Arguments: * N = INTEGER (given) * Number of data elements * VAR[] = REAL (given and returned) * Variance on input, error on output * STATUS = INTEGER (given) * 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: * BDI Subroutine Guide : http://www.sr.bham.ac.uk/asterix-docs/Programmer/Guides/bdi.html * Keywords: * package:bdi, usage:private * Copyright: * Copyright (C) University of Birmingham, 1995 * Authors: * DJA: David J. Allan (Jet-X, University of Birmingham) * {enter_new_authors_here} * History: * 9 Aug 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 N * Arguments Given and Returned: REAL VAR(*) * Status: INTEGER STATUS ! Global status * Local Variables: INTEGER I ! Loop over data *. * Check inherited global status. IF ( STATUS .NE. SAI__OK ) RETURN * Convert data values DO I = 1, N IF ( VAR(I) .GT. 0.0 ) THEN VAR(I) = SQRT(VAR(I)) ELSE VAR(I) = 0.0 END IF END DO END SUBROUTINE BDI1_MAPERR_V2ED( N, VAR, STATUS ) *+ * Name: * BDI1_MAPERR_V2ED * Purpose: * Convert DOUBLE PRECISION variance to error in situ * Language: * Starlink Fortran * Invocation: * CALL BDI1_MAPERR_V2ED( N, VAR, STATUS ) * Description: * Convert DOUBLE PRECISION variance to error in situ. Duff variance values (<0) are * converted to zero errors. This is done because generally such bad * variance values are ignored due to an accompanying bad quality. We * don't want to report errors unnecessarily. * Arguments: * N = INTEGER (given) * Number of data elements * VAR[] = DOUBLE PRECISION (given and returned) * Variance on input, error on output * STATUS = INTEGER (given) * 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: * BDI Subroutine Guide : http://www.sr.bham.ac.uk/asterix-docs/Programmer/Guides/bdi.html * Keywords: * package:bdi, usage:private * Copyright: * Copyright (C) University of Birmingham, 1995 * Authors: * DJA: David J. Allan (Jet-X, University of Birmingham) * {enter_new_authors_here} * History: * 9 Aug 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 N * Arguments Given and Returned: DOUBLE PRECISION VAR(*) * Status: INTEGER STATUS ! Global status * Local Variables: INTEGER I ! Loop over data *. * Check inherited global status. IF ( STATUS .NE. SAI__OK ) RETURN * Convert data values DO I = 1, N IF ( VAR(I) .GT. 0.0 ) THEN VAR(I) = SQRT(VAR(I)) ELSE VAR(I) = 0.0 END IF END DO END