1EZXY(3NCARG)                     NCAR GRAPHICS                    EZXY(3NCARG)
2
3
4

NAME

6       EZXY - Draws, in a manner determined by the current values of the
7       control parameters, a complete graph of a single curve through the
8       points (XDRA(I),YDRA(I)), for I from 1 to NPTS.  The argument GLAB may
9       be used to specify a "graph label", to be placed at the top of the
10       graph.
11

SYNOPSIS

13       CALL EZXY (XDRA,YDRA,NPTS,GLAB)
14

C-BINDING SYNOPSIS

16       #include <ncarg/ncargC.h>
17
18       void c_ezxy (float *xdra, float *ydra, int npts, char *glab)
19

DESCRIPTION

21       XDRA        (an input array of type REAL, dimensioned NPTS) defines the
22                   X coordinates of points on the curve.
23
24       YDRA        (an input array of type REAL, dimensioned NPTS) defines the
25                   Y coordinates of points on the curve.
26
27                   The points on the curve have coordinates (XDRA(I),YDRA(I)),
28                   for I from 1 to NPTS. The current value of 'NULL/1.'
29                   (default value "1.E36") may be used to signal missing data
30                   in these arrays. If either coordinate of a point is
31                   missing, the point is considered to be missing; curve
32                   segments on either side of a missing point are not drawn.
33                   Note:  Because all non-missing coordinates are used in
34                   figuring the minimum and maximum user values along a given
35                   axis, it is safest to mark both coordinates as "missing".
36
37       NPTS        (an input expression of type INTEGER) is the number of
38                   curve points defined by the arrays XDRA and YDRA.
39
40       GLAB        (an input expression of type CHARACTER) defines a new
41                   "graph label". (If the first character of this expression
42                   is "CHAR(0)", no new "graph label" is defined; the current
43                   one will continue to be used.)  A character string defining
44                   a new graph label must either be of the exact length
45                   specified by the current value of 'LINE/MAXIMUM.' (default:
46                   40 characters), or shorter; if shorter, it must be
47                   terminated by the character defined by the current value of
48                   text of line number 100 of the label named 'T'.
49

C-BINDING DESCRIPTION

51       The C-binding argument descriptions are the same as the FORTRAN
52       argument descriptions.
53

EXAMPLES

55       Use the ncargex command to see the following relevant examples: agex02,
56       agex06, agex09, agex10, agex11, agex12, splogy, sprevx, tagupw, tautog,
57       fagezxy, fspponts.
58

ACCESS

60       To use EZXY or c_ezxy, load the NCAR Graphics libraries ncarg,
61       ncarg_gks, and ncarg_c, preferably in that order.    To get smoother
62       curves, drawn using spline interpolation, also load libdashsmth.o.  Or,
63       you can use the ncargf77 command to compile your program and load the
64       above libraries, then, to get smoother curves, use the -dashsmth
65       option.
66

SEE ALSO

68       Online: autograph, agback, agbnch, agchax, agchcu, agchil, agchnl,
69       agcurv, agdshn, aggetc, aggetf, aggeti, aggetp, aggetr, agpwrt, agrstr,
70       agsave, agsetc, agsetf, agseti, agsetp, agsetr, agstup, agutol, anotat,
71       displa, ezmxy, ezmy, ezy
72
73       Hardcopy: NCAR Graphics Fundamentals, UNIX Version
74

76       Copyright (C) 1987-2009
77       University Corporation for Atmospheric Research
78       The use of this Software is governed by a License Agreement.
79
80
81
82UNIX                              March 1993                      EZXY(3NCARG)
Impressum