*+
*  Name:
*     GRF_PAR

*  Purpose:
*     Define the constants needed to implement Fortran GRF routines.

*  Language:
*     Fortran 77

*  Type of Module:
*     Include file.

*  Description:
*     This file contains definitions which are required by Fortran 77
*     programs which implement their own grf routines (routines for
*     drawing graphics primitive used by the AST Plot class).

*  Copyright:
*     Copyright (C) 2004 Central Laboratory of the Research Councils

*  Authors:
*     DSB: David S. Berry (Starlink)

*  History:
*     13-JUN-2001 (DSB):
*        Original version.
*-

*  Values identifying different graphics attributes.
      INTEGER GRF__STYLE  
      PARAMETER ( GRF__STYLE  = 0 )

      INTEGER GRF__WIDTH  
      PARAMETER ( GRF__WIDTH  = 1 )

      INTEGER GRF__SIZE   
      PARAMETER ( GRF__SIZE   = 2 )

      INTEGER GRF__FONT   
      PARAMETER ( GRF__FONT   = 3 )

      INTEGER GRF__COLOUR 
      PARAMETER ( GRF__COLOUR = 4 )

*  Values identifying different graphics primatives.
      INTEGER GRF__TEXT 
      PARAMETER ( GRF__TEXT = 0 )

      INTEGER GRF__LINE 
      PARAMETER ( GRF__LINE = 1 )

      INTEGER GRF__MARK 
      PARAMETER ( GRF__MARK = 2 )

*  The number of different graphics attributes.
      INTEGER GRF__NATTR 
      PARAMETER ( GRF__NATTR = 5 )

*  Values identifying capabilities.
      INTEGER GRF__ESC 
      PARAMETER ( GRF__ESC = 0 )

      INTEGER GRF__MJUST 
      PARAMETER ( GRF__MJUST = 1 )

      INTEGER GRF__SCALES
      PARAMETER ( GRF__SCALES = 2 )

* Values identifying types of graphics escape sequence
      INTEGER GRF__ESPER
      PARAMETER ( GRF__ESPER = 1 )

      INTEGER GRF__ESSUP
      PARAMETER ( GRF__ESSUP = 2 )

      INTEGER GRF__ESSUB
      PARAMETER ( GRF__ESSUB = 3 )

      INTEGER GRF__ESGAP
      PARAMETER ( GRF__ESGAP = 4 )

      INTEGER GRF__ESBAC
      PARAMETER ( GRF__ESBAC = 5 )

      INTEGER GRF__ESSIZ
      PARAMETER ( GRF__ESSIZ = 6 )

      INTEGER GRF__ESWID
      PARAMETER ( GRF__ESWID = 7 )

      INTEGER GRF__ESFON
      PARAMETER ( GRF__ESFON = 8 )

      INTEGER GRF__ESCOL
      PARAMETER ( GRF__ESCOL = 9 )

      INTEGER GRF__ESSTY
      PARAMETER ( GRF__ESSTY = 10 )

      INTEGER GRF__ESPOP
      PARAMETER ( GRF__ESPOP = 11 )

      INTEGER GRF__ESPSH
      PARAMETER ( GRF__ESPSH = 12 )


