getgpos(3G)							   getgpos(3G)

NAME    [Toc]    [Back]

     getgpos - gets the	current	graphics position

C SPECIFICATION    [Toc]    [Back]

     void getgpos(fx, fy, fz, fw)
     Coord *fx,	*fy, *fz, *fw;

PARAMETERS    [Toc]    [Back]

     fx	  expects a pointer to the location into which you want	the system to
	  write	the x coordinate of the	current	graphics position.

     fy	  expects a pointer to the location into which you want	the system to
	  write	the y coordinate of the	current	graphics position.

     fz	  expects a pointer to the location into which you want	the system to
	  write	the z coordinate of the	current	graphics position.

     fw	  expects a pointer to the location into which you want	the system to
	  write	the w coordinate of the	current	graphics position. The w value
	  is used when defining	a three	dimensional point in homogeneous
	  coordinates.

DESCRIPTION    [Toc]    [Back]

     getgpos returns the current graphics position after transformation	by the
     current matrix.

     When the current graphics position	is undefined, the action of this
     routine is	undefined.

SEE ALSO    [Toc]    [Back]

     getcpos

NOTE    [Toc]    [Back]

     This routine is available only in immediate mode.


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