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SETPCI

       SUBROUTINE  SETPCI (CINDEX)
 C$    (Set Polygon Color Index)
 C$    Set the polygon color index which is used to determine  the
 C$    color used for filling a polygon of interior style "plain".
 C$    The INTEGER argument  CINDEX must be  in the range  0..255,
 C$    and is used to index the color lookup table of the  device.
 C$    This routine is an alternative to SETPFI (Set Polygon  Fill
 C$    Index), which is normally used when the display device does
 C$    not support polygon filling.
 C$
 C$    At  present,  no  device  drivers  for  such  displays  are
 C$    available, so the polygon primitives  PGNAx and PGNRx (x  =
 C$    2..3) will use the Fill Index to define a shading  pattern.
 C$    (27-JAN-82)