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.