c
c Plotting options:
c
c NOTE: this header file pltopt.h is linked to ~/tgcmvis/tgcmproc,
c       ~/tgcmvis/modelproc, and ~/tgcmvis/flxproc. Any changes to
c       this file should be followed by rebuilding these processors.
c
      real pltmin,pltmax,conint,scfac
      integer icolor,ibox_clabs,iboxplt
      common/pltopt/
c input:
     +  pltmin,pltmax,		! min,max of field to plot
     +  conint,			! contour interval
     +  scfac,			! scale factor
     +  icolor,			! color fill contour flag
     +  iblack,			! color index to black (255 -- see mkrgb)
     +  iwhite,			! color index to white (1)
     +  ibox_clabs,		! box contour line labels
     +  iboxplt,		! put box around plot if iboxplt > 0
     +  ishadeneg,		! shade neg contour areas (monochrome)
     +  pltchsize,		! character size for axes labels
     +  igks_cgm,		! gks workstation id for cgm
     +  igks_ps,		! gks workstation id for ps
     +  iwk_cgm,		! ncarg workstation id for cgm
     +  iwk_ps,			! ncarg workstation id for ps
     +  iplt_cgm,		! current plot object id for cgm (HLU's)
     +  iplt_ps,		! current plot object id for ps (HLU's)
c vectors on maps only:
     +  vlc,			! vector low cutoff
     +  vhc,			! vector high cutoff
     +  vsc,			! vector scale
     +  vrl,			! vector realized length
     +  labelv,			! label vector arrows
c output:
     +  zmin,zmax,		! min,max of field actually plotted
     +  ciu			! contour interval used
c