C 
C     INCLUDE 'calcomp.inc'
C     ------------------------------------------------------------------
      INTEGER MOPEN,MCOUNT
      PARAMETER (MOPEN=9)
      PARAMETER (MCOUNT=1024)
      INTEGER IUSER,IOPEN(MOPEN),NOPEN,KOLREP,KOLOR,ICOUNT
      REAL PX(MCOUNT),PY(MCOUNT),STARTX,STARTY,OLDX,OLDY
      COMMON/PLOTC/ IUSER,IOPEN,NOPEN,KOLREP,KOLOR,ICOUNT,
     *              PX,PY,STARTX,STARTY,OLDX,OLDY
      SAVE /PLOTC/
C     ------------------------------------------------------------------
C     IUSER...Identifier of the interactive workstation.
C     IOPEN...Array containing the identifiers of the open workstations.
C     NOPEN...Number of the open workstations.
C     KOLREP..for KOLREP.GT.1, colours 2 to KOLREP are periodically
C             repeated.
C     ICOUNT..Number of stored polyline vertices.
C     PX,PY...Arrays to store the coordinates of polyline vertices.
C     STARTX,STARTY... Origin of CalComp coordinates in world
C             coordinates.
C     OLDX,OLDY... Point referred during the previous invocation of a
C             CalComp subroutine, in CalComp coordinates.
C
C     Common block /PLOTC/ is included in FORTRAN 77 source code file
C     'calcomp.for'.
C
C Date: 1996, July 8
C Coded by Ludek Klimes
C
C=======================================================================
C