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SETPIS

       SUBROUTINE  SETPIS (STYLE)
 C$    (Set Polygon Interior Style)
 C$    Set the polygon interior style.  The INTEGER argument is
 C$
 C$    STYLE............1 - "Plain"  (default).    The     polygon
 C$                         interior may be empty or filled with a
 C$                         line  pattern   or  solid   color   as
 C$                         selected by routines SETPFI or SETPCI.
 C$                     2 - "Shaded".   The  polygon  interior  is
 C$                         shaded by blending the colors at  each
 C$                         of the vertices as selected by SETPVI.
 C$                     3 - "Patterned".   The polygon interior is
 C$                         filled with a  pixel pattern array  as
 C$                         selected by SETPPA.
 C$
 C$    Shaded and pattered  polygons are possible  only on  rather
 C$    expensive  color   raster  CRT   displays,  and   will   be
 C$    unavailable at most installations.
 C$    (18-SEP-82)