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SETCI

       SUBROUTINE  SETCI (INDEKS,C1,C2,C3)
 C$    (Set Color Index)
 C$    Define  the  entry  "INDEKS" in  the  color  lookup  table.
 C$    (C1,C2,C3) are a  triple of floating-point  numbers in  the
 C$    range    0.0..1.0    representing    (Red,Green,Blue)    or
 C$    (Hue,Lightness,Saturation), depending upon the color  model
 C$    currently in effect.  "INDEKS" must be in the range 8..255,
 C$    since color indices 0..7 are predefined.
 C$    (09-Jan-1991)