PHIGURE C REFERENCE MANUAL - SET INVISIBILITY FILTER

void pset_invis_filter (wkid, filter)

Pint	wkid;
Pfilter	*filter;

typedef struct {
	Pint_list	incl_set;
	Pint_list	excl_set;
} Pfilter;

typedef struct {
	Pint	num_ints;
	Pint	*ints;
} Pint_list;

This function defines the invisibility filter of the workstation whose identifier is wkid. A primitive of a structure is invisible if:

(Inclusion set of the invisibility filter) [inter] (current Name Set ) != [empty

and

(Exclusion set of the invisibility filter) [inter] (current Name Set ) = [empty