C    Copyright(C) 1999-2020 National Technology & Engineering Solutions
C    of Sandia, LLC (NTESS).  Under the terms of Contract DE-NA0003525 with
C    NTESS, the U.S. Government retains certain rights in this software.
C
C    See packages/seacas/LICENSE for details

      COMMON /MSHOPT/ MSHLIN(4), MLNTYP(-1:1,4), NNPSET(4), NESSET(4),
     &   IHIDOP, NALVAR, DEADNP, ALIVAL
      LOGICAL DEADNP
      COMMON /MSHOPC/ MSHDEF(4), MSHNUM(4)
      CHARACTER*8 MSHDEF, MSHNUM
C      --MSHDEF - the display mode for each view:
C      --   'NONE'     = undefined view
C      --   'EMPTY'    = empty view
C      --   'DEFORM'   = deform mesh
C      --   'UNDEFORM' = undeformed mesh
C      --MSHNUM - the mesh numbering:
C      --   'NONE'     = no numbering
C      --   'NODE'     = number nodes
C      --   'ELEMENT'  = number elements
C      --   'ALL'      = number both
C      --   'SELECTED' = number selected nodes or elements
C      --MSHLIN - the mesh lines to display:
C      --   0 = MSHNON = none
C      --   1 = MSHBOR = boundary lines only
C      --   2 = MSHDIV = above + element block boundary lines
C      --   3 = MSHSEL = above + lines of selected element blocks
C      --   4 = MSHALL = above + lines of all element blocks
C      --MLNTYP - the line type (and color) of the lines:
C      --      (-1) for mesh boundary,
C      --      ( 0) for element block boundary,
C      --      ( 1) for element boundary
C      --  -2 = dotted line in black
C      --  -1 = solid line in black
C      --   0 = valid only if undefined/empty view
C      --   1 = solid line
C      --   2 = dotted line
C      --NNPSET - the number of node sets to be displayed
C      --NESSET - the number of side sets to be displayed
C      --IHIDOP - hidden line removal flag (3D only)
C      --   0 = no hidden lines removed
C      --   1 = hidden surfaces not facing screen removed
C      --   2 = hidden surfaces with hidden nodes removed
C      --   3 = 2 + partial lines
C      --NALVAR - the index of the element birth/death variable
C      --DEADNP - true iff dead nodes are to be displayed
C      --ALIVAL - value to indicate element is alive -- 0.0 by default
