GPHIGS F77 FUNCTIONS - INQUIRE B-SPLINE SURFACE FACILITIES

INQUIRE B-SPLINE SURFACE FACILITIES

PQBSSF

CALL SEQUENCE

CALL PQBSSF (WTYPE, NRSACT, ERRIND, MNUBSS, NCAST, CAST)

INPUT PARAMETERS

INTEGER WTYPE: Workstation type
INTEGER NRSACT: List element requested of surface approximation criteria types

OUTPUT PARAMETERS

INTEGER ERRIND: Error indicator
INTEGER MNUBSS: Maximum non-uniform b-spline surface order supported
INTEGER NCAST: Number of available surface approximation criteria types
INTEGER CAST: Nth element of list of available surface approximation criteria types

PHIGS STATE

(PHOP,*,*,*)

EFFECT

Returns the surface facilities offered by workstations of type WTYPE.

If the inquired information is available, the error indicator is returned as 0 and values are returned in the output parameters.

If the inquired information is not available, the values returned in the output parameters are implementation dependent and the error indicator is set to one of the following error numbers to indicate the reason for non-availability:

ERRORS

2: Ignoring function, function requires state (PHOP, *,*,*)
52: Ignoring function, workstation type not recognized by the implementation
51: Ignoring function, this information is not yet available for this generic workstation type: open a workstation of this type and use the specific workstation type
59: Ignoring function, the specified workstation does not have output capability (i.e. the workstation category is neither OUTPUT, OUTIN, nor MO)
62: Ignoring function, this information is not available for this MO workstation type