pclos(3G)							     pclos(3G)

NAME    [Toc]    [Back]

     pclos - closes a filled polygon

C SPECIFICATION    [Toc]    [Back]

     void pclos()

PARAMETERS    [Toc]    [Back]

     none

DESCRIPTION    [Toc]    [Back]

     pclos closes a filled polygon that	has been created by using pmv and a
     sequence of pdr calls (or rpmv and	rpdr calls).  It is not	needed when
     using poly	or polf	because	these procedures close the polygon within
     their own routines.  pclos	closes the polygon by  connecting the last
     point with	the first.  The	polygon	so defined is filled using the current
     pattern, color, and writemask.  For example, the following	sequence draws
     a filled square:

	  pmv(0.0, 0.0,	0.0);
	  pdr(1.0, 0.0,	0.0);
	  pdr(1.0, 1.0,	0.0);
	  pdr(0.0, 1.0,	0.0);
	  pclos();

SEE ALSO    [Toc]    [Back]

     bgnpolygon, endpolygon, pdr, pmv, v

NOTES    [Toc]    [Back]

     pclos should not be used in new development.  Rather, polygons should be
     drawn using the high-performance v	commands, surrounded by	calls to
     bgnpolygon	and endpolygon.

     There can be no more than 256 vertices in a polygon.  Therefore, there
     can be no more than 255 pdr calls between pmv and pclos.

     Be	careful	not to confuse pclos with the IRIX system call pclose, which
     closes an IRIX pipe.


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