NAME

       EZXY - Draws, in a manner determined by the current values of the control parameters, a complete graph of
       a single curve through the points (XDRA(I),YDRA(I)), for I from 1 to NPTS.  The argument GLAB may be used
       to specify a "graph label", to be placed at the top of the graph.

SYNOPSIS

       CALL EZXY (XDRA,YDRA,NPTS,GLAB)

C-BINDING SYNOPSIS

       #include <ncarg/ncargC.h>

       void c_ezxy (float *xdra, float *ydra, int npts, char *glab)

DESCRIPTION

       XDRA        (an  input  array  of type REAL, dimensioned NPTS) defines the X coordinates of points on the
                   curve.

       YDRA        (an input array of type REAL, dimensioned NPTS) defines the Y coordinates of  points  on  the
                   curve.

                   The points on the curve have coordinates (XDRA(I),YDRA(I)), for I from 1 to NPTS. The current
                   value  of  'NULL/1.'   (default  value  "1.E36")  may be used to signal missing data in these
                   arrays. If either coordinate of a point is missing, the point is considered  to  be  missing;
                   curve  segments  on  either  side  of a missing point are not drawn.  Note:  Because all non-
                   missing coordinates are used in figuring the minimum and maximum user values  along  a  given
                   axis, it is safest to mark both coordinates as "missing".

       NPTS        (an  input  expression  of  type INTEGER) is the number of curve points defined by the arrays
                   XDRA and YDRA.

       GLAB        (an input expression of type CHARACTER) defines a new "graph label". (If the first  character
                   of  this  expression  is  "CHAR(0)",  no  new  "graph label" is defined; the current one will
                   continue to be used.)  A character string defining a new graph label must either  be  of  the
                   exact  length  specified by the current value of 'LINE/MAXIMUM.' (default: 40 characters), or
                   shorter; if shorter, it must be terminated by the character defined by the current  value  of
                   text of line number 100 of the label named 'T'.

C-BINDING DESCRIPTION

       The C-binding argument descriptions are the same as the FORTRAN argument descriptions.

EXAMPLES

       Use  the  ncargex command to see the following relevant examples: agex02, agex06, agex09, agex10, agex11,
       agex12, splogy, sprevx, tagupw, tautog, fagezxy, fspponts.

ACCESS

       To use EZXY or c_ezxy, load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c, preferably in that
       order.    To get smoother curves, drawn using spline interpolation, also load libdashsmth.o.  Or, you can
       use the ncargf77 command to compile your program and load the above  libraries,  then,  to  get  smoother
       curves, use the -dashsmth option.

SEE ALSO

       Online:  autograph,  agback,  agbnch,  agchax,  agchcu,  agchil,  agchnl, agcurv, agdshn, aggetc, aggetf,
       aggeti, aggetp, aggetr, agpwrt, agrstr, agsave, agsetc, agsetf, agseti, agsetp, agsetr,  agstup,  agutol,
       anotat, displa, ezmxy, ezmy, ezy

       Hardcopy: NCAR Graphics Fundamentals, UNIX Version

COPYRIGHT

       Copyright (C) 1987-2009
       University Corporation for Atmospheric Research
       The use of this Software is governed by a License Agreement.

UNIX                                               March 1993                                       EZXY(3NCARG)