ncl_ezmxy (3)  Linux Manuals
NAME
EZMXY  Draws, in a manner determined by the current values of the control parameters, a complete graph of one or more curves, each defined by a set of points (XDRA(I),YDRA(I,J)) (or (XDRA(I),YDRA(J,I)) or (XDRA(I,J),YDRA(I,J)) or (XDRA(J,I),YDRA(J,I)), depending on the current value of 'ROW.'), for I from 1 to NPTS. The curve number J runs from 1 to MANY. The argument GLAB may be used to specify a "graph label", to be placed at the top of the graph.
SYNOPSIS
CALL EZMXY (XDRA,YDRA,IDXY,MANY,NPTS,GLAB)CBINDING SYNOPSIS
#include <ncarg/ncargC.h>
void c_ezmxy(float *xdra, float *ydra, int idxy, int many, \
int npts, char *glab)
DESCRIPTION
 XDRA

(an input array of type REAL, dimensioned NPTS or IDXY
x MANY or IDXY x NPTS, depending on the current value of
'ROW.') contains curvepoint X coordinates. The current
value of 'NULL/1.' (default value "1.E36") may be used in
XDRA to signal missing points; curve segments on either
side of a missing point are not drawn. Note: Because all
nonmissing coordinates are used in figuring the minimum
and maximum user values along a given axis, it is safest to
mark both coordinates as "missing".

 •
 If 'ROW.' has the absolute value "1." (the default), XDRA is singlydimensioned. It is subscripted by point number.
 •
 If 'ROW.' has the absolute value "2." or greater, XDRA is doublydimensioned. It is subscripted by point number and curve number, in that order if 'ROW.' is positive (the default), and in the reverse order if 'ROW.' is negative.

 YDRA

(an input array of type REAL, dimensioned IDXY x MANY
or IDXY x NPTS, depending on the current value of 'ROW.')
contains curvepoint Y coordinates. The current value of
'NULL/1.' (default value "1.E36") may be used in YDRA to
signal missing points; curve segments on either side of a
missing point are not drawn. Note: Because all nonmissing
coordinates are used in figuring the minimum and maximum
user values along a given axis, it is safest to mark both
coordinates as "missing".

 •
 If 'ROW.' is positive (the default), YDRA is subscripted by point number and curve number, in that order.
 •
 If 'ROW.' is negative, YDRA is subscripted by curve number and point number, in that order.

 IDXY

(an input expression of type INTEGER) is the first
dimension of the arrays XDRA (if it is doublydimensioned)
and YDRA (unconditionally), required by EZMXY in order to
index these arrays properly.

 •
 If 'ROW.' is positive (the default), IDXY must be greater than or equal to NPTS.
 •
 If 'ROW.' is negative, IDXY must be greater than or equal to MANY.

 MANY
 (an input expression of type INTEGER) is the number of curves to be drawn by EZMXY.
 NPTS
 (an input expression of type INTEGER) is the number of points defining each curve to be drawn by EZMXY.
 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 'LINE/END.' (default: a '$'). The string becomes the new text of line number 100 of the label named 'T'.
CBINDING DESCRIPTION
The Cbinding argument descriptions are the same as the FORTRAN argument descriptions.EXAMPLES
Use the ncargex command to see the following relevant examples: agex04, agex05, agex07, agex08, tagupw, tautog, fagaxclr, fagaxlbl, fagaxmax, fagcuclr, fagcudsh, fagezmxy, fagilclr, fagovrvw.ACCESS
To use EZMXY or c_ezmxy, 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.COPYRIGHT
Copyright (C) 19872009University Corporation for Atmospheric Research
The use of this Software is governed by a License Agreement.