SUBROUTINE ADI1_ARYMAP( LOC, TYPE, MODE, MLOC, PTR, NELM, STATUS ) *+ * Name: * ADI1_ARYMAP * Purpose: * Map a primitive array or ARRAY structure object * Language: * Starlink Fortran * Invocation: * CALL ADI1_ARYMAP( LOC, TYPE, MODE, MLOC, PTR, NELM, STATUS ) * Description: * {routine_description} * Arguments: * LOC = CHARACTER*(DAT__SZLOC) (given) * Locator to array * TYPE = CHARACTER*(*) (given) * The type to map with * MODE = CHARACTER*(*) (given) * The access mode, READ, UPDATE or WRITE * MLOC = CHARACTER*(DAT__SZLOC) (given) * Locator to mapped object, if any * PTR = INTEGER (returned) * The mapped data address * NELM = INTEGER (returned) * Number of mapped data elements * 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: * Only handles 1 dimensional spaced arrays. Seeing as ASTERIX was the * only package to use spaced arrays, and we've never written them * other than for axis arrays, we're pretty safe here. * References: * ADI Subroutine Guide : http://www.sr.bham.ac.uk/asterix-docs/Programmer/Guides/adi.html * Keywords: * package:adi, usage:private * Copyright: * Copyright (C) University of Birmingham, 1995 * Authors: * DJA: David J. Allan (Jet-X, University of Birmingham) * {enter_new_authors_here} * History: * 14 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 'DAT_PAR' * Arguments Given: CHARACTER*(DAT__SZLOC) LOC CHARACTER*(*) TYPE, MODE * Arguments Returned: CHARACTER*(DAT__SZLOC) MLOC INTEGER PTR, NELM * Status: INTEGER STATUS ! Global status * Local Variables: CHARACTER*(DAT__SZLOC) ACLOC ! ARRAY component CHARACTER*(DAT__SZTYP) ATYPE ! Actual array type CHARACTER*(DAT__SZTYP) HTYPE ! HDS style type name CHARACTER*10 VARNT ! Array variant name DOUBLE PRECISION BASE, SCALE ! Spaced array descrip INTEGER DIMS(DAT__MXDIM) ! Array dimensions INTEGER NDIM ! Array dimensionality LOGICAL PRIM ! Object is primitive? *. * Check inherited global status. IF ( STATUS .NE. SAI__OK ) RETURN * Defaults MLOC = DAT__NOLOC * Construct HDS type HTYPE = '_'//TYPE * Is object primitive? CALL DAT_PRIM( LOC, PRIM, STATUS ) IF ( PRIM ) THEN * Clone a copy of the locator for mapping CALL DAT_CLONE( LOC, MLOC, STATUS ) * Map the object CALL DAT_MAPV( MLOC, HTYPE, MODE, PTR, NELM, STATUS ) * Otherwise structured ARRAY ELSE * Get variant allowed under SGP/38 CALL CMP_GET0C( LOC, 'VARIANT', VARNT, STATUS ) * Simple array variant? IF ( VARNT .EQ. 'SIMPLE' ) THEN * Locate the DATA item CALL DAT_FIND( LOC, 'DATA', MLOC, STATUS ) * And map it CALL DAT_MAPV( MLOC, HTYPE, MODE, PTR, NELM, STATUS ) * The scaled array variant ELSE IF ( VARNT .EQ. 'SCALED' ) THEN * The spaced array variant ELSE IF ( VARNT .EQ. 'SPACED' ) THEN * Get array shape and total number of elements CALL ADI1_ARYSHP( LOC, DAT__MXDIM, DIMS, NDIM, ATYPE, STATUS ) CALL ARR_SUMDIM( NDIM, DIMS, NELM ) * Read base and scale values. Read them into DOUBLE PRECISION * variables even though the access type isn't necessarily double. We * don't access the values directly here so this doesn't matter. To * be tidy we should map two more dynamic arrays of length one element CALL DAT_FIND( LOC, 'BASE', ACLOC, STATUS ) CALL DAT_GET( ACLOC, HTYPE, 0, 0, BASE, STATUS ) CALL DAT_ANNUL( ACLOC, STATUS ) IF ( STATUS .NE. SAI__OK ) THEN STATUS = SAI__ERROR CALL ERR_REP( 'ADI1_ARYMAP_2', 'Unable to read BASE '/ : /'component from spaced array', STATUS ) GOTO 99 END IF CALL DAT_FIND( LOC, 'SCALE', ACLOC, STATUS ) CALL DAT_GET( ACLOC, HTYPE, 0, 0, SCALE, STATUS ) CALL DAT_ANNUL( ACLOC, STATUS ) IF ( STATUS .NE. SAI__OK ) THEN STATUS = SAI__ERROR CALL ERR_REP( 'ADI1_ARYMAP_3', 'Unable to read SCALE '/ : /'component from spaced array', STATUS ) GOTO 99 END IF * Map workspace of required type CALL DYN_MAPT( 1, NELM, HTYPE, PTR, STATUS ) * Fill workspace with regular values CALL ARR_REG1T( HTYPE, BASE, SCALE, NELM, %VAL(PTR), STATUS ) ELSE STATUS = SAI__ERROR CALL MSG_SETC( 'V', VARNT ) CALL ERR_REP( 'ADI1_ARYMAP_1', 'Unsupported array '/ : /'variant ^V', STATUS ) END IF END IF * Report any errors 99 IF ( STATUS .NE. SAI__OK ) CALL AST_REXIT( 'ADI1_ARYMAP', STATUS ) END