pgraph.dec

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                       2  Line in inch coordinates
                       3  Line in pixel coordinates
                       4  Circle in plot coordinates
                       5  Circle in inch coordinates
                       6  Radius in plot coordinates
                       7  Radius in inch coordinates
             [N,2]   line type, 1-6
             [N,3-7] coordinates and dimensions

                 ( 1 ) Line in plot coordinates.
                       [N,3] x starting point in plot coordinates
                       [N,4] y starting point in plot coordinates
                       [N,5] x ending point in plot coordinates
                       [N,6] y ending point in plot coordinates
                       [N,7] 0=continuation, 1=begin new curve
                 ( 2 ) Line in inch coordinates
                       [N,3] x starting point in inches
                       [N,4] y starting point in inches
                       [N,5] x ending point in inches
                       [N,6] y ending point in inches
                       [N,7] 0=continuation, 1=begin new curve
                 ( 3 ) Line in pixel coordinates
                       [N,3] x starting point in pixels
                       [N,4] y starting point in pixels
                       [N,5] x ending point in pixels
                       [N,6] y ending point in pixels
                       [N,7] 0=continuation, 1=begin new curve
                 ( 4 ) Circle in plot coordinates
                       [N,3] x center of circle in plot coordinates
                       [N,4] y center of circle in plot coordinates
                       [N,5] radius in plot coordinates
                       [N,6] starting point of arc in radians
                       [N,7] ending point of arc in radians
                 ( 5 ) Circle in inches
                       [N,3] x center of circle in inches
                       [N,4] y center of circle in inches
                       [N,5] radius in inches
                       [N,6] starting point of arc in radian
                       [N,7] ending point of arc in radians
                 ( 6 ) Radius in plot coordinates
                       [N,3] x center of circle in plot coordinates
                       [N,4] y center of circle in plot coordinates
                       [N,5] beginning point of radius in plot coord.
                       [N,6] ending point of radius
                       [N,7] angle in radians
                 ( 7 ) Radius in inches
                       [N,3] x center of circle in inches
                       [N,4] y center of circle in inches
                       [N,5] beginning point of radius in inches
                       [N,6] ending point of radius
                       [N,7] angle in radians
             [N,8]   color 1-15
             [N,9]   line thickness

         Examples:

         Draw a solid, red line in plot coordinates:
             _pline = { 1 6 10 20 100 200 1 4 0 }

         Draw a thick, solid, red line in inches:
             _pline = { 2 6 1.0 2.0 3.0 4.5 1 4 5 }

         Draw a thick, dashed, green circle in inches centered at 1,2
         with a radius of 1.5":
             _pline = { 5 1 1.0 2.0 1.5 0 6.28 2 5 }


    _PLINE3D Draw Line in 3D coordinate system
             [M,1]  x starting location in 3D plot coordinate units
             [M,2]  y starting location in 3D plot coordinate units
             [M,3]  z starting location in 3D plot coordinate units
             [M,4]  x ending location in 3D plot coordinate units
             [M,5]  y ending location in 3D plot coordinate units
             [M,6]  z ending location in 3D plot coordinate units
             [M,7]  color (1-15)
             [M,8]  line type
             [M,9]  line thickness
             [M,10] Hidden line flag. 1=obscured by surface, 0=Off.

         Example: _pline3d = { 10 10 10 20 20 20 10 6 0 0 }


    _PMSGCTL Print extra messages.  Message strings specified in _PMSGSTR.
             [M,1]  x location of message
             [M,2]  y location of message
             [M,3]  character height in inches
             [M,4]  angle in degrees to print string (-180 to 180)
             [M,5]  X,Y coordinate units: 1=plot coord, 2=inches
             [M,6]  color
             [M,7]  line thickness.

         Example: _pmsgctl = { 10 20 .12 0 1 10 0,
                               10 30 .12 0 1 10 0 }


    _PMSGSTR Message strings corresponding to _pmsgctl.  Strings are
             separated by a null byte ("\000")

         Example: _pmsgstr = "First message\000Second message"


    _PNUM    Global _PNUM, previously a scalar for turning axes number
             labels on/off, is now a scalar, 2x1 or 3x1 vector for
             independent control for each axis. If scalar, the vector will
             be expanded to that value.

             Examples:
             _pnum = 0;      - turn off numbers for all axes
             _pnum = 1;      - turn on numbers for all axes
             _pnum = {1,0}   - turn on numbers for X axis, off for Y
             _pnum = {0,0,1} - turn on numbers for Z axis, off for X,Y


    _PSYM    Plot Extra Symbols
             [M,1]  x location
             [M,2]  y location
             [M,3]  symbol type (1-16)
             [M,4]  symbol height (see _PSYMSIZ below)
             [M,5]  symbol color (1-15)
             [M,6]  X,Y coordinate units: 1=plot coord, 2=inches
             [M,7]  line thickness.

         Example: _psym = { 10 20 1 5 10 1 0 }


    _PSYMSIZ Size of symbols on main curve.  The symbols have been
             redefined in higher resolution for better quality laser
             printer output.  The default value is 3.5.


    _PSYM3D  Plot Extra Symbols on 3D Graph
             [M,1]  x location in plot coordinate units
             [M,2]  y location in plot coordinate units
             [M,3]  z location in plot coordinate units
             [M,4]  symbol type (1-16)
             [M,5]  symbol height
             [M,6]  symbol color (1-15)
             [M,7]  line thickness.

         Example: _psym3d = { 10 20 1 5 10 1 0 }


    _PTEK    Name the Tektronix formatted graphics file.
             If this is set to a null string, no file will be created.
             Otherwise set this to the desired name for the graphics file.
             You should include .TKF within the filename.

         Examples:
             _ptek = "test.tkf";  * name the graphics file test.tkf *
             _ptek = "";          * do not create a graphics file   *
*/

/* version number */
declare matrix _pqg_ver = { 3, 2, 3 };

/* global common to all graph types */
declare matrix _pagedim = { 9.0, 6.855 };
declare matrix _pappend = 0;
declare matrix _parrow = 0;
declare matrix _parrow3 = 0;
declare matrix _pascx = 0;
declare matrix _pascy = 0;
declare matrix _paxes = 1;
declare matrix _paxht = 0;
declare matrix _paxmarx = 0;
declare matrix _pbox = 0;
declare matrix _pcrop = { 1 1 1 1 1 };
declare matrix _pcolor = 0;
declare matrix _pcross = 0;
declare matrix _pcwin = 0;
declare matrix _pncwin = 0;
declare matrix _pcsel = { 10 11 12 13 14 9 15 };
declare matrix _perrbar = 0;
declare matrix _pfonts = { "simplex" };
declare matrix _pframe = { 1,1 };
declare matrix _pgrid = 0;
declare matrix _plctrl = 0;
declare matrix _pline = 0;
declare matrix _plotsiz = 0;
declare matrix _plotshf = 0;
declare matrix _pageshf = 0;
declare matrix _pagesiz = 0;
declare matrix _plegctl = 0;
declare matrix _plsel = { 6 1 2 3 4 5 };
declare matrix _pltype = 0;
declare matrix _plwidth = 0;
declare matrix _pmargin = { 0 0 0 0 };
declare matrix _pmcolor = 15;
declare matrix _pmsgctl = 0;
declare matrix _pnotify = 1;
declare matrix _pnum = 1;
declare matrix _pnumht = 0;
declare matrix _protate = 0;
declare matrix _pqgplay = 0;
declare matrix _pqgtype = 0;
declare matrix _pscreen = 1;
declare matrix _psilent = 1;
declare matrix _pssel = { 1 2 3 4 5 6 7 8 };
declare matrix _pstype = 0;
declare matrix _psym = 0;
declare matrix _psymsiz = 3.5;
declare matrix _ptitlht = 0;
declare matrix _pworld = 0;
declare matrix _pxpmax = 12;
declare matrix _pxscale = 0;
declare matrix _pypmax = 12;
declare matrix _pyscale = 0;
declare matrix _pwindmx = 0;
declare matrix _pwindno = 0;
declare matrix _pfirstw = 0;
declare matrix _pxmem = 0;
declare matrix _pxsci = 4;
declare matrix _pysci = 4;
declare matrix _pzsci = 4;
declare matrix _pzclr = 13;
declare matrix _pzoom = { 0 5 5 };

declare string _pcmdlin = "";
declare string _pcvfile = "";
declare string _pdate = "\201GAUSS    ";
declare string _phard = "";
declare string _plegstr = "";
declare string _pmsgstr = "";
declare string _prtfile = "";
declare string _ptek = "graphic.tkf";
declare string _ptitle = "";
declare string _pversno = "3.2.1";
declare string _pxfmt = "";
declare string _pxlabel = "";
declare string _pyfmt = "";
declare string _pylabel = "";
declare matrix _pqgedit = 0;

declare matrix _pmnr = { 1 2 5 10, 1 2 10 20, 1 2 5 10, 1 5 10 10, 1 2 5 10 };
declare matrix _pmjr = { 1 2 4 5 10 };
declare matrix _poptic = 16;
declare matrix _pmtic = 8;

/* bar globals */
declare matrix _pbarwid = 0.5;
declare matrix _pbartyp = { 6 7 };

/* box globals */
declare matrix _pboxctl = { .25 10 1 };
declare matrix _pboxlim = 0;

/* 3d globals */
declare matrix _pbox3d = 0;
declare matrix _psym3d = 0;
declare matrix _pline3d = 0;
declare matrix _psurf = { 0, 7 };
declare matrix _pview = { 1, -4, -3, 3 };
declare matrix _pvolume = 0;
declare matrix _pticout = 0;
declare string _pzlabel = "";
declare matrix _pzpmax = 12;
declare matrix _pzscale = 0;
declare string _pzfmt = "";

/* contour globals */
declare matrix _plev = 0;