SUBROUTINE ADI1_NATRL( ID, CLASS, STATUS ) *+ * Name: * ADI1_NATRL * Purpose: * Attempt to define the natural class for an HDS object * Language: * Starlink Fortran * Invocation: * CALL ADI1_NATRL( ID, CLASS, STATUS ) * Description: * Attempts to open the named file object as an HDS file. If successful * the routine stores the locator on the property list of the ID object. * Arguments: * ID = INTEGER (Given) * ADI identifier of FileHandle object * CLASS = CHAR (Returned) * Class if derived, otherwise blank * STATUS = INTEGER (Given and returned) * The global status. * Examples: * {routine_example_text} * {routine_example_description} * Notes: * {routine_notes}... * Prior Requirements: * {routine_prior_requirements}... * Side Effects: * {routine_side_effects}... * Algorithm: * {algorithm_description}... * External Routines Used: * {name_of_facility_or_package}: * {routine_used}... * Implementation Deficiencies: * {routine_deficiencies}... * {machine}-specific features used: * {routine_machine_specifics}... * {DIY_prologue_heading}: * {DIY_prologue_text} * 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: * 15 Jul 1994 (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: INTEGER ID * Arguments Returned: CHARACTER*(*) CLASS * Status: INTEGER STATUS ! Global status * Local Variables: CHARACTER*(DAT__SZLOC) FLOC ! Object locator CHARACTER*(DAT__SZTYP) TYPE ! Object type INTEGER DIMS(DAT__MXDIM) ! Object dimensions INTEGER NDIM ! Object dimensionality LOGICAL PRIM ! Object is primitive? *. * Check inherited global status. IF ( STATUS .NE. SAI__OK ) RETURN * Initialise CLASS = ' ' * Retrieve the locator from the property list CALL ADI1_GETLOC( ID, FLOC, STATUS ) * Is it primitive? CALL DAT_PRIM( FLOC, PRIM, STATUS ) IF ( PRIM ) THEN * Get its dimensions CALL DAT_SHAPE( FLOC, DAT__MXDIM, DIMS, NDIM, STATUS ) * Scalar? IF ( NDIM .EQ. 0 ) THEN CLASS = 'Scalar' ELSE CLASS = 'Array' END IF ELSE * Get object type CALL DAT_TYPE( FLOC, TYPE, STATUS ) * Event dataset? IF ( TYPE(1:4) .EQ. 'EVDS' ) THEN CLASS = 'EventDS' ELSE IF ( TYPE(1:4) .EQ. 'BINDS' ) THEN CLASS = 'BinDS' END IF END IF END