Name: RESET   2
RESET sets parameters back to their default values.
The call is:  CALL RESET (CNAME)                   level 1, 2, 3
         or:  void reset (char *cname);
CNAME         is a character string  containing the  name of the
              routine whose parameters  will be set  back to de-
              fault values. If CNAME = 'ALL',  all parameters in
              DISLIN will be reset.
Name: UNIT    1
UNIT defines the  logical unit used for printing  error messages
and listing data points that lie outside of the axis scaling.
The call is:  CALL UNIT (NU)                       level 1, 2, 3
         or:  void unit (FILE *nu);
NU            is the logical unit. If NU = 0, all messages  will
              be suppressed.        Default: NU = 6 (or: stdout)
Name: UNITS   1
The routine UNITS defines the plot units.
The call is:  CALL UNITS (COPT)                          level 0
         or:  void units (char *copt);
COPT          is a character string  that  can  have  the values
              'CM', 'INCH', 'POINTS' and 'TWIPS'. 'CM' means 100
              points per  centimeter,  'INCH'  means 100  points
              per inch, 'POINTS' means 720 points per  inch  and
              'TWIPS' means 1440 points per inch.  
                                           Default: COPT = 'CM'.
Name: PAGORG  1
The routine  PAGORG sets the origin of the page. By default, the
page origin is located in the upper left  corner  of the page.
The call is:  CALL PAGORG (COPT)                   level 1, 2, 3 
         or:  void pagorg (char *copt);
COPT          is a  character string  that can  have  the values
              'TOP'  and  'BOTTOM'.  The keyword  'TOP' sets the
              page origin to the upper left corner,  'BOTTOM' to
              the lower left corner.
                                          Default: COPT = 'TOP'.
Name: ORIGIN  1
In DISLIN,  all lines are plotted  relative to the  origin which
is a point located in the upper left corner of  the page.  Modi-
fying this point by  ORIGIN  produces a shifting of plot vectors
on the page.
The call is:  CALL ORIGIN (NX0, NY0)                     level 1
         or:  void origin (int nx0, int ny0);
NX0, NY0      are the X- and Y-coordinates of the point.
                                                Default: (0, 0).
Name: COLOR   10,12,22
COLOR defines the colour used for plotting text and lines.
The call is:  CALL COLOR (CCOL)                    level 1, 2, 3
         or:  void color (char *ccol);
CCOL          is a  character  string  that can  have the values
              'BLACK', 'RED', 'GREEN', 'CYAN', 'BLUE', 'YELLOW',
              'MAGENTA',  'ORANGE', 'WHITE', 'FORE' and 'BACK'. 
              The keyword  'FORE'  resets the colour to the de-
              fault value while the  keyword  'BACK'  sets  the
              colour  to the background colour.

Name: PAGE    1
PAGE determines the size of the page.
The call is:  CALL PAGE (NXP, NYP)                       level 0
         or:  void page (int nxp, int nyp);
NXP, NYP      are the length and height of  the page in plot co-
              ordinates. The lower right  corner of the  page is
              the point (NXP-1, NYP-1).   Default: (2970, 2100).
Name: SETPAG  1
SETPAG selects a predefined page format.
The call is:    CALL SETPAG (CPAGE)                      level 0
         or:    void setpag (char *cpage);  
CPAGE           is a character string that defines the page for-
                mat.
   = 'DA4L'     DIN A4,         landscape,   2970 * 2100 Punkte.
   = 'DA4P'     DIN A4,         portrait,    2100 * 2970 Punkte.
   = 'DA3L'     DIN A3,         landscape,   4200 * 2970 Punkte.
   = 'DA3P'     DIN A3,         portrait,    2970 * 4200 Punkte.
   = 'DA2L'     DIN A2,         landscape,   5940 * 4200 Punkte.
   = 'DA2P'     DIN A2,         portrait,    4200 * 5940 Punkte.
   = 'DA1L'     DIN A1,         landscape,   8400 * 5940 Punkte.
   = 'DA1P'     DIN A1,         portrait,    5940 * 8400 Punkte.
   = 'DA0L'     DIN A0,         landscape,  11890 * 8410 points.
   = 'DA0P'     DIN A0,         portrait,    8410 * 11890 points.
   = 'USAL'     US size A,      landscape,   2790 * 2160 points.
   = 'USAP'     US size A,      portrait,    2160 * 2790 points.
   = 'USBL'     US size B,      landscape,   4320 * 2790 points.
   = 'USBP'     US size B,      portrait,    2790 * 4320 points.
   = 'USCL'     US size C,      landscape,   5590 * 4320 points.
   = 'USCP'     US size C,      portrait,    4320 * 5590 points.
   = 'USDL'     US size D,      landscape,   8640 * 5590 points.
   = 'USDP'     US size D,      portrait,    5590 * 8640 points.
   = 'USEL'     US size E,      landscape,  11180 * 8640 points.
   = 'USEP'     US size E,      portrait,    8640 * 11180 points.
   = 'PS4L'     PostScript A4,  landscape,   2800 * 1950 Punkte.
   = 'PS4P'     PostScript A4,  portrait,    1950 * 2800 Punkte.
   = 'HP4L'     HP-Plotter A4,  landscape,   2718 * 1900 Punkte.
   = 'HP4P'     HP-Plotter A4,  portrait,    1900 * 2718 Punkte.
   = 'HP3L'     HP-Plotter A3,  landscape,   3992 * 2718 Punkte.
   = 'HP3P'     HP-Plotter A3,  portrait,    2718 * 3992 Punkte.
   = 'HP2L'     HP-Plotter A2,  landscape,   5340 * 3360 Punkte.
   = 'HP2P'     HP-Plotter A2,  portrait,    3360 * 5340 Punkte.
   = 'HP1L'     HP-Plotter A1,  landscape,   7570 * 5340 Punkte.
   = 'HP1P'     HP-Plotter A1,  portrait,    5340 * 7570 Punkte.
                                        Default: CPAGE = 'DA4L'.
Name: METAFL  1
METAFL defines the metafile format.
The call is:  CALL METAFL (CFMT)                         level 0
         or:  void metafl (char *cfmt);
CFMT          is a character string  that defines  the file for-
              mat.
   = 'GKSL'   defines a GKSLIN metafile.
   = 'CGM'    defines a CGM metafile.
   = 'PS'     defines a coloured PostScript file.
   = 'EPS'    defines an  Encapsulated PostScript file. The for-
              mat is nearly the same as for 'PS'.
   = 'POST'   defines a greyscaled PostScript file.
   = 'PSCL'   defines a coloured  PostScript file  with a  black
              background.
   = 'PDF'    defines a PDF file.
   = 'KYOC'   defines a Kyocera file.
   = 'HPGL'   defines an HPGL file.
   = 'JAVA'   defines a Java applet file.
   = 'WMF'    defines a Windows metafile.
   = 'SVG'    defines a SVG file.
   = 'GIF'    defines a GIF file.
   = 'TIFF'   defines a TIFF file.
   = 'PNG'    defines a PNG file.
   = 'PPM'    defines a portable pixmap format.
   = 'IMAG'   defines an image file.
   = 'BMP'    defines a Windows Bitmap format.
   = 'VIRT'   defines a virtual file. The metafile  is hold in a
              raster format in computer memory.
   = 'CONS'   defines a  graphics output  on the screen.  If the
              screen is a windows display, a graphical window is
              used that has nearly the size of the screen.
  = 'XWIN'    defines an X Window display.  By default, the size
              of the window  is nearly  2/3 of  the size  of the
              screen.
                                         Default: CFMT = 'GKSL'.
Name: SETFIL  1
By default, the plotfile consists of the keyword 'DISLIN' and an
extension that depends on the file format. An alternate filename
can be set with SETFIL.
The call is:  CALL SETFIL (CFIL)                         level 0
         or:  void setfil (char *cfil);
CFIL          is a character string that contains the filename.
Name: SCLFAC  1
SCLFAC sets the scaling factor for an entire plot.
The call is:  CALL SCLFAC (XFAC)                         level 0
         or:  void sclfac (float xfac);
XFAC          is the scaling factor  by which the entire plot is
              scaled up or down.
                                              Default: XFAC = 1.
Name: SCLMOD  1
The method by which  graphics are scaled to the hardware page of
devices  such as a  graphics terminal  can be  selected with the
routine SCLMOD.
The call is:   CALL SCLMOD (CMOD)                        level 0
         or:   void sclmod (char *cmod); 
CMOD = 'DOWN'  means  that graphics  will be scaled down  if the
               hardware  page  of a device  is smaller  than the
               plotting page.
     = 'FULL'  means that the graphics will be scaled up or down
               depending upon the size of the hardware page.
                                         Default: CMOD = 'DOWN'.
Name: FILMOD  1
The routine FILMOD determines if a new plotfile name  is created
for existing files.
The call is:    CALL FILMOD (CMOD)              level 0, 1, 2, 3
         or:    void filmod (char *cmod); 
CMOD            is a character string containing the mode.
   = 'COUNT'    means that a new file version will be created.
   = 'DELETE'   means that  the existing  file will be overwrit-
                ten.
   = 'BREAK'    means that  the program  will be  terminated  by
                DISINI.
                                        Default: CMOD = 'COUNT'.
Name: PAGMOD  1
GKSLIN and CGM files can be  rotated by  90 degrees  to use  the
full hardware page of a device.  In general,  this is done auto-
matically by the driver program.
The call is:    CALL PAGMOD (CMOD)                       level 0
         or:    void pagmod (char *cmod); 
CMOD = 'LAND'   means that the metafile is not rotated.
     = 'PORT'   means  that the  metafile  is rotated  by 90 de-
                grees.
     = 'NONE'   can be used to disable  automatic plotfile rota-
                tion in the driver program  (i.e. for PostScript
                files).     
                                         Default: CMOD = 'LAND'.
Name: SCRMOD  1
Normally,  the background of screens, image files and PostScript
files  created  with  the  keyword  'PSCL'  in METAFL  is set to 
'BLACK',  and the foreground colour is set to 'WHITE'.  With the
routine SCRMOD, the back and foreground colours can be swapped.
The call is:  CALL SCRMOD (CMOD)                         level 0
         or:  void scrmod (char *cmod); 
CMOD          is a character string containing the mode.
 = 'AUTO'     uses  a 'BLACK'  background colour for screen out-
              put, image files and PostScript files created with
              the keyword  'PSCL'  in the  routine METAFL.
 = 'REVERS'   means that the background colour is set to 'WHITE'
              and the foreground colour to 'BLACK'.
 = 'NOREV'    means that the background colour is set to 'BLACK'
              and the foreground colour to 'WHITE'.
                                        Default: CMOD = 'AUTO'.
Name: CGMBGD  1
The routine CGMBGD sets the background colour for CGM files.
The call is:  CALL CGMBGD (XR, XG, XB)          level 0, 1, 2, 3 
         or:  void cgmbgd (float xr, float xg, float xb);
XR, XG, XB    are the  RGB coordinates  of the background colour 
              in the range 0 to 1.
                                          Default: (1., 1., 1.).
Name: CGMPIC  1
The routine  CGMPIC  modifies the picture  ID in CGM files.  The
picture ID may be referenced by some browsers.
The call is:  CALL CGMPIC (CSTR)                level 0, 1, 2, 3 
         or:  void cgmpic (char *cstr);
CSTR          is a character string  containing  the picture  ID
              (<=  256 characters). By default,  the ID 
              'Picture n'  is used where n is the picture number
              beginning with 1. 
Name: TIFMOD 1
The routine  TIFMOD  modifies  the  physical resolution of  TIFF 
files.
The call is:  CALL TIFMOD (N, CVAL, COPT)                level 0
         or:  void tifmod (int n, char *cval, char *copt);
N             is an integer value  containing the number of pix-
              els per resolution unit.
CVAL          is a  character string  containing  the resolution 
              unit. CVAL can have the values 'INCH' and 'CM'.
COPT          is a  character string  that  can  have  the value
              'RESOLUTION'.
                            Default: (100, 'INCH', 'RESOLUTION')
Name: WMFMOD 1
The routine WMFMOD modifies the appearance of WMF files. 
The call is:  CALL WMFMOD (CMOD, CKEY)                   level 0
         or:  void wmfmod (char *cmod, char *ckey);
CMOD          is a character string containing the values 'STAN-
              DARD' or 'PLACEABLE'.  If CMOD =  'PLACEABLE',  an
              additional leading header  of  22 byte is added to
              the WMF file.  The format  is also  known as Aldus
              Placeable Metafile.
CKEY          is a  character string  that  can  have  the value
              'FORMAT'.
                                     Default: CMOD = 'STANDARD'.
Name: PDFMOD  1
The routine PDFMOD selects between compressed and non compressed
PDF files, and can enable PDF buffer output instead of file out-
put. 
The call is:  CALL PDFMOD (CMOD, CKEY)                   level 0 
         or:  void pdfmod (char *cmod, char *ckey);
CMOD          is  a  character  string  that can have the values 
              'ON' and 'OFF'.
CKEY          is a character  string  that can  have  the values 
              'COMPRESSION and 'BUFFER'. For CKEY = 'BUFFER' and
              CMOD = 'ON',  the PDF file  is hold  in memory and 
              can be  copied  to an user buffer with the routine
              PDFBUF after DISFIN.
                                  Default: ('ON', COMPRESSION'), 
                                              ('OFF', 'BUFFER').
Name: PDFMRK  1
The routine PDFMRK writes bookmarks to PDF files.  This makes it
possible  to navigate  through  PDF files  that contain multiple
pages.
The call is:  CALL PDFMRK (CSTR, COPT)             level 1 ,2 ,3 
         or:  void pdfmrk (char *cstr, char *copt);
CSTR         is a character string that contains the text of the
             bookmark.
COPT         is a  character  string  that  can  have the values 
             'CHAPTER',  'SECTION',  'SUBSECTION',   'PARAGRAPH'
             and  'SUBPARAGRAPH'. This option defines the  level
             of  a bookmark  in the hierarchy of bookmarks.
             A bookmark with the option  'SECTION'  can only  be
             defined if a bookmark with the  option 'CHAPTER' is
             defined before, and so on.
Name: GIFMOD  1
The routine GIFMOD enables transparency for GIF files.
The call is:  CALL GIFMOD (CMOD, CKEY)                   level 0 
         or:  void gifmod (char *cmod, char *ckey);
CMOD          is a character string that can have the values 
              'ON' and 'OFF'.
CKEY          is a character string that can have the  value 
              'TRANSPARENCY'.
                               Default: ('OFF', 'TRANSPARENCY').
Name: PNGMOD  1
The routine PNGMOD enables transparency for PNG files.
The call is:  CALL PNGMOD (CMOD, CKEY)                   level 0 
         or:  void pngmod (char *cmod, char *ckey);
CMOD          is a character string that can have the values 
              'ON' and 'OFF'.
CKEY          is a character string that can have the  value 
              'TRANSPARENCY'.
                               Default: ('OFF', 'TRANSPARENCY').
Note:         For indexed PNG files, the colour table entry 0 is
              used  for transparency.  For RGB files, the colour 
              White is used for transparency.
Name: IMGFMT  1
The routine IMGFMT defines palette or truecolour mode for DISLIN
image formats such as TIFF, PNG, BMP and IMAGE.
The call is:  CALL IMGFMT (CMOD)                         level 0 
         or:  void imgfmt (char *cmod);
CMOD          is a character  string  that  can have  the values
              'INDEX' and 'RGB'.
                                        Default: CMOD = 'INDEX'.
Name: NEWPAG  1
NEWPAG creates a new page.
The call is:  CALL NEWPAG                                level 1
         or:  void newpag ();
Notes:     -  PostScript,  PDF and CGM files can store  multiple
              pages.  For other  output formats,  NEWPAG  is not 
              useful.
           -  On X Window  terminals,  NEWPAG  is waiting  for a
              mouse button 2  event  before  displaying the next
              page.  This mode can be changed  with the  routine
              WINMOD.  On other terminals,  NEWPAG  has the same 
              effect as ERASE. 
Name: WINDOW  1
This routine defines for  X Window  terminals a  region  on  the
screen  where the  graphics will be  displayed.  By default, the
window size is set to  2/3 of the screen size and located in the
lower right corner of the screen.
The call is:  CALL WINDOW (NX, NY, NW, NH)      level 0, 1, 2, 3
         or:  void window (int nx, int ny, int nw, int nh);
NX, NY        are the  screen coordinates of the upper left cor-
              ner.
NW, NH        are the width  and height  of the window in screen
              coordinates.
Note:         In general, the screen size is 1280 * 1024 pixels.
Name: WINSIZ  1
This routine  defines the size of windows  and the resolution of
DISLIN image formats such as  TIFF,  PNG,  BMP,  PPM  and IMAGE.
By default,  the window size is set to  2/3  of the screen size,
and the resolution of  image  formats is  853 x 603 pixels. 
The call is:  CALL WINSIZ (NW, NH)              level 0, 1, 2, 3
         or:  void winsiz (int nw, int nh);
NW, NH        are the width  and height of the window in pixels.
Name: HWPAGE  1
The routine  HWPAGE  defines the size of the PostScript hardware
page.
The call is:  CALL HWPAGE (NW, NH)                       level 0
         or:  void hwpage (int nw, int nh);
NW, NH        are the width and height  of the  PostScript hard-
              ware page in plot coordinates.
                                          Default: (1950, 2800).
Name: HWORIG  1
The routine HWORIG defines the hardware origin of the PostScript
hardware page.
The call is:  CALL HWORIG (NX, NY)                       level 0
         or:  void hworig (int nx, int ny);
NX, NY        are the plot coordinates of the hardware origin.
                                             Default: (75, 100).
Name: ERRMOD  1
The printing of warnings  and the output of the protocol in DIS-
FIN can be disabled with the routine ERRMOD.
The call is:  CALL ERRMOD (CKEY, CMOD)               level 1,2,3
         or:  void errmod (char *ckey, char *cmod);
CKEY          is a  character string  that can  have  the values
              'WARNINGS', 'CHECK',  'PROTOCOL' and 'ALL'. 'WARN-
              INGS'  means the error messages  about bad parame-
              ters passed to DISLIN routines, 'CHECK' the out of
              range  check  of coordinates  passed  to  plotting
              routines such as CURVE and  'PROTOCOL'  the output
              of the protocol in DISFIN.
CMOD          is a character  string  that  can have  the values 
              'ON' and 'OFF'.
                                          Default: ('ALL', 'ON')
Name: ERRFIL  1
By default, the name of the error file is 'dislin.err'.
An alternate filename can be set with ERRFIL.
The call is:  CALL ERRFIL (CFIL)                         level 0
         or:  void errfil (char *cfil);
CFIL          is a character string  that contains the filename.
Name: ERRDEV  1
The routine  ERRDEV defines the output device for  DISLIN  warn-
ings. By default, warnings are written to the screen.
The call is:  CALL ERRDEV (COPT)                         level 0
         or:  void errdev (char *copt);
COPT          is a character string that can have the values
              'CONS' and 'FILE'.
                                         Default: COPT = 'CONS'.
Name: UNIT    1
UNIT defines the  logical unit used for printing  error messages
and listing data points that lie outside of the axis scaling.
The call is:  CALL UNIT (NU)                       level 1, 2, 3
         or:  void unit (FILE *nu);
NU            is the logical unit. If NU = 0, all messages  will
              be suppressed.        Default: NU = 6 (or: stdout)
Name: WINAPP  1
The routine WINAPP defines if a  DISLIN program should look like
a  Windows console, or more like a  Windows program.  If Windows
mode is selected, all warnings are written to an  error file and
the protocol in disfin is displayed in a widget. 
The call is:  CALL WINAPP (COPT)                         level 0
         or:  void winapp (char *copt);
COPT          is a  character string  that can  have  the values
              'CONSOLE' and 'WINDOWS'.
                                      Default: COPT = 'CONSOLE'.
Name: CLRMOD  1
The routine CLRMOD defines the colour mode used for output on an
X Window terminal.
The call is:  CALL CLRMOD (CMOD)                         level 0
         or:  void clrmod (char *cmod);        
CMOD = 'NONE' means that a colour table with 256 colours will be
              reduced to 129 colours  to conserve current screen
              and window colours. The colour values will  be re-
              duced by the formula (0 <=> 0, i = (iclr + 1) / 2, 
              iclr = 1,..,255).  
     = 'FULL' means that all 256 colours will be displayed.
     = 'CONT' means that a colour table  with less than  129 en-
              tries will be used.
                                         Default: CMOD = 'NONE'.    
Name: WINMOD  1
The routine WINMOD affects the handling of windows in the termi-
nation routine  DISFIN. 
The call is:  CALL WINMOD (CMOD)                   level 1, 2, 3
         or:  void winmod (char *cmod);
CMOD          is a character string containing the mode.
  = 'FULL'    means that DISFIN is waiting  for a mouse button 2
              event. After program continuation, all windows are
              deleted.
  = 'NOHOLD'  means that  DISFIN is not waiting for a mouse but-
              ton 2 event.  After a call to  DISFIN, all windows
              are deleted.
  = 'NOERASE' means that the program is still blocked in  DISFIN
              but windows will not be deleted after program con-
              tinuation.
  = "NONE'    means  that the program  is not blocked in  DISFIN
              and windows are not deleted.
  = 'DELAY'   means that the program is blocked for a short time
              in  DISFIN  before it is continued. The delay time
              can be defined with the routine WINOPT.
                                         Default: CMOD = 'FULL'.
Name: WINOPT  1
The routine  WINOPT sets the delay time for the keyword  'DELAY'
in WINMOD.
The call is:  CALL WINOPT (IOPT, CKEY)             level 1, 2, 3
         or:  winopt (int iopt, char *ckey);
IOPT          is the delay time in seconds.
CKEY          is a  character  string  that can  have  the value
              'DELAY'.
                                         Default: (10, 'DELAY').
Name: WINKEY  1
The routine  WINKEY enables a an additional key that can be used
for program continuation is DISFIN. Normally, the mouse button 2
can be used for closing the graphics window. 
The call is:  CALL WINKEY (CKEY)                   level 1, 2, 3
         or:  void winkey (char *ckey);
CKEY          is a character  string  that  can have  the values
              'NONE', 'RETURN' and 'ESCAPE'.
                                         Default: CKEY = 'NONE'.
Name: X11MOD  1
The routine X11MOD enables backing store for graphical output on
X Window terminals.
The call is:  CALL X11MOD (CMOD)                         level 0
         or:  void x11mod (char *cmod);
CMOD          is a character string containing the mode.
  = 'STORE'   means  that graphical output  is saved in a pixmap
              that will be copied to the output window.
  = 'NOSTORE' means  that the graphical  output is send directly 
              to the output window.
  = 'AUTO'    means that  'NOSTORE'  will  be  used on  X11  and 
              'STORE' on Windows terminals.
 =  'PIXMAP'  means  that  only a pixmap  is used.  The graphics
              window will be invisible.
                                         Default: CMOD = 'AUTO'.
Name: SETXID  1
The routine  SETXID  defines an external graphics window for X11
and Windows displays. All graphical output is sent to the exter-
nal window.  For X11 displays,  an external  pixmap  can also be
defined.
The call is:  CALL SETXID (ID, CTYPE)           level 0, 1, 2, 3 
         or:  void setxid (int id, char *ctype);
ID            is the window or pixmap ID.
CTYPE         is a character string  that  can  have  the values
              'NONE, 'WINDOW',  'PIXMAP'  and 'WIDGET'.  For the
              keyword 'WIDGET', the  ID of a  DISLIN draw widget
              can be used.                 Default: (0, 'NONE').
Notes:      - If an external  pixmap is used, backing store must
              also be enabled with the routine X11MOD.
            - An external window is not erased by DISINI. 
              This can be done with the routine ERASE.
            - External windows are not blocked in DISFIN 
              (see WINMOD).   
            - External  windows  can also be used  for  multiple 
              DISLIN windows  that are defined  with the routine
              OPNWIN.

Name: AXSTYP  6
The routine  AXSTYP  defines  the type  of an axis system.  Axis
systems  can be plotted as rectangles or in a crossed form.  For
crossed axis systems,  the scaling  must be linear  and the axis
limits must contain the origin.
The call is:  CALL AXSTYP (COPT)                   level 1, 2, 3
         or:  void axstyp (char *copt); 
CPOS          is a character string defining the type.
 = 'RECT'     defines a rectangular axis system. 
 = 'CROSS'    defines a crossed axis system.
                                         Default: COPT = 'RECT'.
Name: AXSPOS  6
AXSPOS determines the position of an axis system.
The call is:  CALL AXSPOS (NXA, NYA)                     level 1
         or:  void axspos (int nxa, int nya);
NXA, NYA      are plot coordinates that define lower left corner
              of an  axis system.  By default,  axis systems are
              centered in the X-direction  while  NYA is set  to
              the  value (page height - 300).
Name: AXSORG  6
AXSORG is  an alternate  routine  for defining the position of a
crossed axis system.
The call is:  CALL AXSORG (NX, NY)                       level 1
         or:  void axsorg (int nx, int ny);
NX, NY        are plot coordinates  that define the position  of
              the origin of a crossed axis system.
Name: AXSLEN  6
AXSLEN defines the size of an axis system.
The call is:  CALL AXSLEN (NXL, NYL)                     level 1
         or:  void axslen (int nxl, int nyl);
NXL, NYL      are the  length  and height  of an axis  system in
              plot coordinates.  The default values  are  2/3 of
              the page length and height.
Name: CENTER  6
A call to the routine CENTER will centre the axis system  on the
page. All elements of an axis system, including the title,  axis
labels and names, will be taken into consideration.  The centra-
lisation is done by  GRAF  through changing  the position of the
origin.  Therefore, all plotting routines called after GRAF will
work with the new origin.
The call is:  CALL CENTER                          level 1, 2, 3
         or:  void center ();
Name: AXSSCL   8
This routine sets the axis scaling to logarithmic or linear.
The call is:  CALL AXSSCL (CSCL, CAX)               level 1, 2, 3
         or:  void AXSSCL (char *cscl, char *cax);
CSCL = 'LIN'  denotes linear scaling.
     = 'LOG'  denotes logarithmic scaling.
CAX           is a character string that defines the axes.
                                        Default: ('LIN', 'XYZ').
Note:         For logarithmic scaling, the corresponding parame-
              ters in GRAF must be exponents of base 10.
Name: SETSCL  6
The parameters in  GRAF will be calculated automatically by DIS-
LIN if the routine SETSCL is used.  In this case, GRAF must have
dummy parameters in which DISLIN returns the calculated values.
The call is:  CALL SETSCL (XRAY, N, CAX)                 level 1
         or:  void setscl (float *xray, int n, char *cax);
XRAY          is a vector that contains user coordinates. SETSCL
              calculates  the minimum and  maximum values of the
              data and stores them in a common block.
 N            is the number of points in XRAY.
 CAX          is a character string that defines the axes.
 Notes:     - SETSCL  can be used  with linear  and  logarithmic
              scaling and with all label types.
            - The calculation  of scaling  and label  values  is
              done by GRAF. The minimum and maximum of the  data
              are always used for the lower and upper  limits of
              an axis  while even values  are calculated for the
              labels.
            - The number of digits  after the decimal point will
              be set automatically.
            - If the scaling of an axis  is logarithmic,  labels
              will be plotted with the format 'LOG'.
Name: TICKS   8
This routine is used to  define the number of ticks between axis
labels.
The call is:  CALL TICKS (NTIC, CAX)               level 1, 2, 3
         or:  void ticks (int ntic, char *cax);
NTIC          is the number of ticks (>= 0).
 CAX          is a character string that defines the axes.
                                            Default: (2, 'XYZ').
Name: TICPOS  8
This routine defines the position of ticks.
The call is:  CALL TICPOS (CPOS, CAX)              level 1, 2, 3
         or:  void ticpos (char *cpos, char *cax);
CPOS          is a character string defining the position.
  = 'LABELS'  means that ticks  will be plotted on the same side
              as labels.
  = 'REVERS'  means that ticks will be plotted inside of an axis
              system.
  = 'CENTER'  means that ticks will be centred on the axis line.
CAX           is a character string that defines the axes.
                                      Default: ('LABELS', 'XYZ).
Name: TICLEN  8
TICLEN sets the lengths of major and minor ticks.
The call is:  CALL TICLEN (NMAJ, NMIN)             level 1, 2, 3
         or:  void ticlen (int nmaj, int nmin);
NMAJ          is the length  of major ticks  in plot coordinates
              (> 0).
NMIN          is the length  of minor ticks  in plot coordinates
              (> 0).
                                              Default: (24, 16).
Name: TICMOD  8
The routine  TICMOD modifies the plotting of minor tick marks on
calendar axes.  By default, a major tick is plotted at each date
label and no minor ticks are plotted.
The call is:  CALL TICMOD (COPT, CAX)              level 1, 2, 3
         or:  void ticmod (char *copt, char *cax);
COPT          is a character string defining the tick marks.
  = 'NONE'    means that no minor ticks will be plotted.
  = 'DAYS'    means that ticks will be plotted for every day.
  = 'MONTH'   means that ticks will be plotted for every month.
  = 'DMONTH'  means that ticks will be plotted for every 
              second month.
  = 'QUARTER' means that ticks will be plotted on the first of 
              January, April, July and October.
  = 'HALF'    means that ticks will be plotted on the first of
              January and July.
  = 'YEAR'    means that ticks will be plotted for every year.
CAX           is a character string that defines the axes.
                                       Default: ('NONE', 'XYZ').
Name: LOGTIC  8
The  appearance  of  minor  ticks on  logarithmic  axes  differs
slightly from linear axes. By default,  logarithmic  minor ticks
are generated automatically if the label step is 1 or -1 and the
if number of ticks in  TICKS is greater than 1.  If the step has
another value,  minor ticks are plotted  as specified in  TICKS.
This algorithm can be modified with LOGTIC.
The call is:  CALL LOGTIC (CMOD)                   level 1, 2, 3
         or:  void logtic (char *cmod);
CMOD          is a character  string defining  the appearance of
              logarithmic ticks.
  = 'AUTO'    defines default ticks.
  = 'FULL'    means that logarithmic minor ticks will be genera-
              ted for every cycle even if the label step is  not
              1 but some other integer.  Default: CMOD = 'AUTO'.
Name: LABELS  8,20,21,25
LABELS determines which label types will be plotted on an axis.
The call is:   CALL LABELS (CLAB, CAX)             level 1, 2, 3
         or:   void labels (char *clab, char *cax); 
CLAB           is a character string that defines the labels.
  = 'NONE'     will suppress all axis labels.
  = 'FLOAT'    will plot labels in floating-point format.
  = 'EXP'      will plot  floating-point  labels in  exponential
               format where fractions range between 1 and 10.
  = 'FEXP'     will plot labels in the format  fEn  where f ran-
               ges between 1 and 10.
  = 'LOG'      will plot logarithmic labels with base 10 and the
               corresponding exponents.
  = 'CLOG'     is similar to 'LOG'  except that the entire label
               is centred below the tick mark;  with 'LOG', only
               the base '10' is centred.
  = 'ELOG'     will plot only the logarithmic values of labels.
  = 'TIME'     will plot time labels in the format 'hhmm'.
  = 'HOURS'    will plot time labels in the format 'hh'.
  = 'SECONDS'  will plot time labels in the format 'hhmmss'.
  = 'DATE'    defines date labels.
  = 'MAP'      defines geographical labels which are  plotted as
               non  negative  floating-point  numbers  with  the
               following characters 'W', 'E', 'N' and 'S'.
  = 'LMAP'     is simular to 'MAP' except that lowercase charac-
               ters are used.
  = 'DMAP'     selects labels that are plotted as floating-point
               numbers with degree symbols.
  = 'MYLAB'    selects labels  that are defined with the routine
               MYLAB.
CAX            is a character string that defines the axes.
                                      Default: ('FLOAT', 'XYZ').
Notes:       - The values 'LOG', 'CLOG' and  'ELOG' can be  only
               used with logarithmic scaling. If these label ty-
               pes are used with linear  scaling,   DISLIN  will
               change them to 'FLOAT'.
             - For the values 'TIME', 'HOURS' and 'SECONDS', the
               corresponding parameters in  GRAF must be in  se-
               conds since midnight.
            -  For the value  'DATE',  the corresponding parame-
               ters in GRAF must be in days  since  a base date.
               The  base date  can be  defined with the  routine
               BASDAT while the  number  of days since  the base
               date can be  calculated with the routine  INCDAT.
               Date labels can be modified with the routine LAB-
               MOD.
Name: MYLAB   8
MYLAB defines user labels.
The call is:  CALL MYLAB (CSTR, ITICK, CAX)        level 1, 2, 3
         or:  void mylab (char *cstr, int itick, char *cax);
CSTR          is a  character string  containing a label  (<= 32
              characters).
ITICK         is the tick number where the label will be plotted
              (<= 20). Tick numbering starts with 1.
CAX           is a character string that defines the axes.
Name: LABTYP  8,21
LABTYP defines horizontal or vertical labels.
The call is:  CALL LABTYP (CTYPE, CAX)             level 1, 2, 3
         or:  void labtyp (char *ctype, char *cax);
CTYPE         is a character string defining the direction.
  = 'HORI'    defines horizontal labels.
  = 'VERT'    defines vertical labels.
CAX           is a character string that defines the axes.
                                       Default: ('HORI', 'XYZ').
Name: LABPOS  8,20,21
LABPOS defines the position of labels.
The call is:  CALL LABPOS (CPOS, CAX)              level 1, 2, 3
         or:  void labpos (char *cpos, char *cax);
CPOS          is a character string defining the position.
  = 'TICKS'   means that labels will be plotted at major ticks.
  = 'CENTER'  means that labels will be  centred  between  major
              ticks.
  = 'SHIFT'   means that  the starting  and end  labels  will be
              shifted.
CAX           is a character string that defines the axes.
                                      Default: ('TICKS', 'XYZ').
Name: LABJUS  8
LABJUS defines the alignment of axis labels.
The call is:  CALL LABJUS (CJUS, CAX)              level 1, 2, 3
         or:  void labjus (char *cjus, char *cax);
CJUS          is a  character string  defining the  alignment of
              labels.
  = 'AUTO'    means that labels will automatically justified.
  = 'LEFT'    means that labels are left-justified.
  = 'RIGHT'   means that labels are right-justified.
  = 'OUTW'    means that labels are left-justified  on the  left
              and lower axes of an axis system. On the right and
              upper axes labels are right-justified.
  = 'INWA'    means that labels are right-justified on the  left
              and lower axes of an axis system. On the right and
              upper axes labels are left-justified.
CAX           is a character string that defines the axes.
                                         Default: CJUS = 'AUTO'.
Name: LABDIG  8,20,21
This routine sets the number of digits  after the decimal  point
displayed in labels.
The call is:  CALL LABDIG (NDIG, CAX)              level 1, 2, 3
         or:  void labdig (int ndig, char *cax);
NDIG = -1     defines integer labels.
     =  0     defines  integer  labels  followed  by  a  decimal
              point.
     =  n     defines  the number  of digits  after  the decimal
              point. The last digit will be rounded up.
CAX           is a character string that defines the axes.
                                            Default: (1, 'XYZ').
Name: INTAX   8
With the routine INTAX, all axes will be labeled with integers.
The call is:  CALL INTAX
         or:  void intax ();
Name: LABDIS  8,25
This routine sets the distance between labels and ticks.
The call is:  CALL LABDIS (NDIS, CAX)              level 1, 2, 3
         or:  void labdis (int ndis, char *cax);
NDIS          is the distance in plot coordinates.
CAX           is a character string that defines the axes.
                                           Default: (24, 'XYZ').
Name: LABMOD  8
The routine  LABMOD modifies the appearance of date labels enab-
led with the keyword  'DATE'  in the routine  LABELS.  Normally,
date labels will be plotted in the form dd-mmm-yyyy.
The call is:  CALL LABMOD (CKEY, CVAL, CAX)        level 1, 2, 3
         or:  void labmod (char *ckey, char *cval, char *cax);
CKEY          is a character string  containing  one of the fol-
              lowing keywords:
 = 'YEAR'     means  that the century field will be  modified in
              date labels.  For CKEY = 'YEAR', CVAL can have the
              values 'NONE', 'SHORT' and 'FULL'. 'NONE' suppres-
              ses the year field while  'SHORT'  suppresses  the
              century in the year field.  The  default  value is
              'FULL'. 
 = 'DAYS'     means  that the  day field will be modified.  CVAL 
              can  have  the  values  'NONE',  'SHORT',  'LONG',
              'NAME'  and 'FULL'.  For  CVAL = 'NONE',  the  day 
              field  will be suppressed, for CVAL = 'SHORT', the
              day will be plotted  as a number without a leading
              zero. CVAL = 'LONG'  means  that the  day will  be
              plotted as a number with two digits, CVAL = 'NAME'
              means that abbreviations of the weekday names will
              be plotted and CVAL = 'FULL' means that  the  full
              weekday names will be displayed. The default value
              is CVAL = 'LONG'.
 = 'MONTH'    means  that the month field will be modified. CVAL
              can  have  the  values  'NONE',  'SHORT',  'LONG', 
              'NAME', 'TINY' and 'FULL'. For CVAL = 'NONE',  the
              month  field  will  be  suppressed,   for  CVAL = 
              'SHORT',  the  month  will be plotted  as a number
              without  a leading zero.  CVAL = 'LONG' means that
              the month will be plotted  as a  number  with  two
              digits,  CVAL = 'NAME' means that abbreviations of
              the  month names  will be plotted,  CVAL =  'TINY'
              means that only the first character of month names
              will be plotted and  CVAL = 'FULL'means  that full
              month names  will be displayed. The default  value
              is CVAL = 'NAME'.
 = 'LANG'     defines  the  language used for weekdays and month
              names  in date  labels.  CVAL can  have the values 
              'ENGLISH' and 'GERMAN'. The default value for CVAL
              is 'ENGLISH'.
 = 'FORM'     defines  the order  of the  date fields.  CVAL can
              have the values 'DMY',  'DYM', 'YDM', 'YMD', 'DYM'
              and 'MDY'. The default is CVAL = 'DMY'.
 = 'SEPA'     defines a separator character used in date labels.
              CVAL is a character string  containing the separa-
              tor character. The default is CVAL = '-'.
 = 'CASE'     defines if weekdays and month names are plotted in
              uppercase  characters  or in lowercase  characters
              with a leading uppercase character.  CVAL can have
              the values  'UPPER' and  'NONE'. The default value
              is 'NONE'.
 = 'STEP'     defines a step between labels.  CVAL can  have the
              values 'DAYS', 'MONTH', 'DMONTH', 'QUARTER', 
              'HALF'  and 'YEAR'.  For CVAL = 'DAYS',  the label
              step specified in the routine  GRAF  will be used.
              The default value is CVAL = 'DAYS'.
CAX           is a character string that defines the axes.
Name: POLMOD  8
The routine POLMOD modifies the appearance of angle labels plot-
ted with the routine POLAR.
The call is:  CALL POLMOD (CPOS, CDIR)             level 1, 2, 3
         or:  void polmod (char *cpos, char *cdir);
CPOS          is a character string that defines the position of
              the first label. CPOS can have the values 'RIGHT',
              'TOP', 'LEFT' and 'BOTTOM'.
CDIR          defines the direction of the labels. CDIR can have
              the values 'CLOCKWISE' and 'ANTICLOCK'.
                                Default: ('RIGHT', 'ANTICLOCK').
Name: TIMOPT  8
With TIMOPT time  labels can be plotted  in the format  'hh:mm'.
The default is 'hhmm'.
The call is:  CALL TIMOPT                          level 1, 2, 3
         or:  void timopt ();
Name: RGTLAB  8
The routine RGTLAB right-justifies user labels. By default, user
labels are left-justified.
The call is:  CALL RGTLAB                          level 1, 2, 3
         or:  void rgtlab ();
Name: NAME    8
NAME defines axis titles.
The call is:  CALL NAME (CSTR, CAX)                level 1, 2, 3
         or:  void name (char *cstr, char *cax);
CSTR          is a  character  string  containing the axis title 
              (<= 132 characters).
CAX           is a character string that defines the axes.
                                          Default: (' ', 'XYZ').
Name: HNAME   8
HNAME defines the character height for axis names. 
The call is:  CALL HNAME (NHNAME)                  level 1, 2, 3
         or:  void hname (int nhname);
NHNAME        is the character height in plot coordinates.
                                            Default: NHNAME = 36
Name: NAMDIS  8
NAMDIS sets the distance between axis names and labels.
The call is:  CALL NAMDIS (NDIS, CAX)              level 1, 2, 3
         or:  void namdis (int ndis, char *cax);
NDIS          is the distance in plot coordinates.
CAX           is a character string that defines the axes.
                                           Default: (30, 'XYZ').
Name: NAMJUS  8
The routine NAMJUS defines the alignment of axis titles.
The call is:  CALL NAMJUS (CJUS, CAX)              level 1, 2, 3
         or:  void namjus (char *cjus, char *cax);
CJUS          is a  character  string  that  can have the values
              'CENT', 'LEFT' and 'RIGHT'. 
CAX           is a character string that defines the axes.
                                         Default: CJUS = 'CENT'.
Name: RVYNAM  8
The routine  RVYNAM  is used to plot names  on right  Y-axes and
colour bars  at an angle  of 90 degrees.  By  default,  they are
plotted at an angle of 270 degrees.
The call is:  CALL RVYNAM                          level 1, 2, 3
         or:  void rvynam ();
Name: NOLINE  8
After a call to  NOLINE  the plotting of axis lines will be sup-
pressed.
The call is:  CALL NOLINE (CAX)                    level 1, 2, 3
         or:  void noline (char *cax);
CAX           is a character string that defines the axes.
Name: AXENDS  8
With a call to AXENDS certain labels can be suppressed.
The call is:  CALL AXENDS (COPT, CAX)              level 1, 2, 3
         or:  void axends (char *copt, char *cax);
COPT          is a  character string  that defines  which labels
              will be suppressed.
 = 'NONE'     means that all labels will be displayed.
 = 'FIRST'    means that only  the starting  label will be plot-
              ted.
 = 'NOFIRST'  means that the starting label will not be plotted.
 = 'LAST'     means that only the ending label will be plotted.
 = 'NOLAST'   means that the ending label will not be plotted.
 = 'ENDS'     means that  only the start and  end labels will be
              plotted.
 = 'NOENDS'   means that  start  and end labels will be suppres-
              sed.
CAX           is a character string that defines the axes.
                                       Default: ('NONE', 'XYZ').
Name: NOGRAF  6
The routine NOGRAF suppresses the plotting of an axis system.
The call is:  CALL NOGRAF                                level 1
         or:  void nograf ();
Name: AX2GRF  6
The routine AX2GRF suppresses the  plotting of the upper  X- and
the left Y-axis.
The call is:  CALL AX2GRF                          level 1, 2, 3
         or:  void ax2grf ();
Name: SETGRF  6
SETGRF removes a part of an axis or a complete axis from an axis
system.
The call is:  CALL SETGRF (C1, C2, C3, C4)         level 1, 2, 3
         or:  void setgrf (char *c1, char *c2, 
                           char *c3, char *c4);
Ci            are character  strings  corresponding  to the four
              axes of an axis system. C1 corresponds  to the lo-
              wer X-axis, C2 to the left Y-axis, C3 to the upper
              X-axis and C4 to the right Y-axis.  The parameters
              can have the values 'NONE', 'LINE',  'TICKS', 'LA-
              BELS' and 'NAME'. With 'NONE',  complete axes will
              be suppressed,  with  'LINE', only axis lines will
              be  plotted, with  'TICKS',  axis lines and  ticks
              will be plotted,  with  'LABELS' axis lines, ticks
              and labels will be  plotted and with  'NAME',  all
              axis elements will be displayed.
                    Default: ('NAME', 'NAME', 'TICKS', 'TICKS').
Notes:     -  By default,  GRAF  plots a  frame  of  thickness 1
              around axis systems. Therefore, in addition to the
              parameter 'NONE', FRAME should be  called with the
              parameter 0 for suppressing complete axes.
           -  SETGRF does not reset the effect of NOGRAF and NO-
              LINE. This must be done using RESET.
Name: CLPWIN 
The routine  CLPWIN  defines  a rectangular clipping area on the
page.
The call is:  CALL CLPWIN (NX, NY, NW, NH)         level 1, 2, 3
         or:  void clpwin (int nx, int ny, int nw, int nh);
NX, NY        are the plot coordinates of the upper left corner.
NW, NH        are the width and height in plot coordinates.
Name: CLPBOR
This routine  sets the clipping area  to the entire  page  or to
the axis system.
The call is:  CALL CLPBOR (COPT)                      level 2, 3
         or:  void clpbor (char *copt);
COPT          is a character  string  that  can have  the values
              'PAGE' and 'AXIS'.         Default: COPT = 'PAGE'.  
Name: NOCLIP  6
The suppressing  of lines outside of the borders of an axis sys-
tem can be disabled with NOCLIP.
The call is:  CALL NOCLIP                          level 1, 2, 3
         or:  void noclip ();
Name: CLPMOD  6
The suppressing  of lines outside of the borders of an axis sys-
tem can be modified with CLPMOD.
The call is:  CALL CLPMOD (CMOD)                   level 1, 2, 3
         or:  void clpmod (char *cmod);
CMOD          is a character string defining the mode.
   = 'AUTO'   defines  automatic clipping at  the borders  of an
              axis system.
   = 'RECT'   defines  rectangular clipping at the borders of an
              axis system.
   = 'CIRC'   defines circular clipping. The circle is placed in
              the  middle of the axis sytem  with  the radius NR
              where NR is the minimum of the axis lengths.
   = 'NONE'   suppresses clipping.
                                         Default: CMOD = 'AUTO'.
Name: GRACE  6
GRACE defines a  margin around axis  systems where lines will be
clipped.
The call is:  CALL GRACE (NGRA)                    level 1, 2, 3
         or:  void grace (ngra);
NGRA          is the width of the margin in plot coordinates. If
              NGRA is negative, lines will be clipped inside the
              axis system.
                                              Default: NGRA = -1
Name: FRAME  6,11
FRAME defines  the thickness  of frames plotted by routines such
as GRAF and LEGEND.
The call is:  CALL FRAME (NFRM)                    level 1, 2, 3
         or:  void frame (nfrm);
NFRM          is the thickness of the frame in plot coordinates.
              If  NFRM is negative,  the frame will be thickened
              from the inside.  If positive,  the frame  will be
              thickened towards the outside.
                                               Default: NFRM = 1
Name: AXSBGD  8
The routine AXSBGD defines a background colour for axis systems.
The call is:  CALL AXSBGD (NCLR)                   level 1, 2, 3
         or:  void axsbgd (int nclr);
NCLR          is a colour number between -1  and 255.  If NCLR =
              -1, the background of an axis system is not filled
              in GRAF.
                                              Default: NCLR = -1
Name: AXCLRS  8
AXCLRS selects colours for single parts of axes.
The call is:  CALL AXCLRS (NCLR, COPT, CAX)        level 1, 2, 3
         or:  void axclrs (int nclr, char *copt, char *cax);
NCLR          is a colour number between  -1 and 255.  If NCLR =
              -1, the actual colour is used.
COPT          is a  character string  that can have  the  values
              'LINE', 'TICKS', 'LABELS', 'NAME' and 'ALL'.
CAX           is a character string that defines the axes.
                                    Default: (-1, 'ALL', 'XYZ').
Name: TITLIN  9
This subroutine defines  up to four  lines of text used for axis
system titles.  The text can be plotted with  TITLE after a call
to GRAF.
The call is:  CALL TITLIN (CSTR, IZ)               level 1, 2, 3
         or:  void titlin (char *cstr, int iz);
CSTR          is a character string (<= 132 characters).
IZ            is an integer that contains a value between  1 and
              4 or -1 and -4.  If IZ is negative,  the line will
              be underscored.
                      Default: All lines are filled with blanks.
Name: LFTTIT  9
Title lines are centred above axis systems by default but can be
left-justified with a call to LFTTIT.
The call is:  CALL LFTTIT                          level 1, 2, 3
         or:  void lfttit ();
Name: TITPOS  9
The routine TITPOS defines the position of title lines which can
be plotted above or below axis systems.
The call is:  CALL TITPOS (CPOS)                   level 1, 2, 3
         or:  void titpos (char *cpos);
CPOS          is a  character  string  that can  have the values
              'ABOVE' and 'BELOW'.      Default: CPOS = 'ABOVE'.
Name: TITJUS  9
The routine TITJUS defines the alignment of title lines.
The call is:  CALL TITJUS (CJUS)                   level 1, 2, 3
         or:  void titjus (char *cjus);
CJUS          is a character string  that can  have  the  values
              'CENT', 'LEFT' and 'RIGHT'. 
                                         Default: CJUS = 'CENT'.
Name: LINESP  9,11
LINESP defines the spacing between title and legend lines.
The call is:  CALL LINESP (XFAC)                   level 1, 2, 3
         or:  void linesp (float xfac);
XFAC          The space  between  lines is set  to:  XFAC * cha-
              racter height.                Default:  XFAC = 1.5
Name: HTITLE  9
HTITLE  defines the  character  height for titles. The character
height defined by HEIGHT will be used if HTITLE is not called.
The call is:  CALL HTITLE (NHCHAR)                 level 1, 2, 3
         or:  void htitle (int nhchar);
NHCHAR        is the character height in plot coordinates.
Name: VKYTIT  9
The space between  titles  and axis systems  can be enlarged  or
reduced  with  VKYTIT.  By default,  the space is  2 * character
height.
The call is:  CALL VKYTIT (NV)                     level 1, 2, 3
         or:  void vkytit (int nv);
NV            is an integer that determines  the spacing between
              axis systems  and titles.  If NV is negative,  the
              space will be reduced by  NV plot coordinates.  If
              NV is positive,  the space will be  enlarged by NV
              plot coordinates.
                                                 Default: NV = 0

