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DEFPR

       SUBROUTINE  DEFPR (PARLEL,DX,DY,DZ)
 C$    (Set Projection)
 C$    Define  the   type  of   projection  desired.    (DX,DY,DZ)
 C$    specifies a world coordinate point measured relative to the
 C$    view  reference  point.    If  PARLEL=.TRUE.,  a   parallel
 C$    projection is  requested,  and  projection  lines  will  be
 C$    parallel to  the  line  from (DX,DY,DZ)  through  the  view
 C$    reference   point.    If   PARLEL=.FALSE.,   a    one-point
 C$    perspective projection is requested, with (DX,DY,DZ)  being
 C$    the center of projection.
 C$    (27-JAN-83)