GPHIGS F77 FUNCTIONS - SET ANTIALIASING IDENTIFIER

SET ANTIALIASING IDENTIFIER

PXSAAI

CALL SEQUENCE

CALL PXSAAI ( AI)

INPUT PARAMETERS

INTEGER AI: Antialiasing identifier

POFF:	0
PON:	1

PHIGS STATE

(PHOP,*,STOP,*)

EFFECT

A GSE element is inserted in the open structure after element pointer or replaces the element indicated by element pointer, depending on the edit mode value. Element pointer is updated and points to the GSE structure element. The values specified in the function are associated with the element.

The antialiasing identifier is defined as follows:

PON activate antialiasing for lines and edges
POFF deactivate antialiasing

The default value is PON which means antialiasing is activated for both lines and edges.

When an element of this type is interpreted, the current antialiasing identifier entry in the traversal state list is set to the value associated with the element. This value is used when displaying subsequent primitives to reduce the line aliasing if ANTIALIASING MODE is PON.

This attribute is workstation dependent. See driver documentation for more details.

FORTRAN binding calls pxset_antialiasing_id C function.

Listing of pxset_antialiasing_id function is as follows :

void pxset_antialiasing_id(

Pint antialiasing_id

)

{

Pgse_data gse_data;

gse_data.gse_r6.antialiasing_id = antialiasing_id ;

pgse (PGSE_ID_ANTIALIASING_ID, &gse_data);

}

ERRORS

5: Ignoring function, function requires state (PHOP,*, STOP,*)