/* plt/axis.h Paul Albrecht Feb 1988
Copyright (C) Paul Albrecht 1988. All rights reserved.
Last Update: May 21, 1989
EMACS_MODES: tabstop=4
*/
typedef struct {
char name; /* 'x' or 'y' */
double min; /* lower limit */
double max; /* upper limit */
double cr; /* where this axis crosses the other axis */
double aoff; /* offset from other axis (alternative to cr) */
double mlt; /* if != DEFAULT make axis and tics = 0 mod mlt */
double tic; /* spacing between tic marks */
double tmark; /* a tic which must be maked and labeled */
double tscl; /* scale factor for tic mark length */
long skp; /* label only every `skp'th tick mark */
char *pfm; /* format (e.g. %4.2f) for outputing tic values */
char *lbl; /* label for the axis */
char *base; /* base for log plots */
short mode; /* what to show */
Boolean logflg; /* YES for log axis */
Boolean rev; /* put reverse the axis tics and labels */
double scl; /* scaling from user to device coordinates */
double off; /* offset from user to device coordinates */
double acchi; /* how much the xmax can be increased */
double acclo; /* how much the xmin can be decreased */
char *numfg; /* name of font group to use axis numbers */
char *lblfg; /* name of font group to use for axis label */
char *extra;
Ptype lo; /* same as cr but in plot device coordinates */
Ptype hi; /* opposite end from lo */
Ptype (*this)(); /* subr for this axis device coordinate */
Ptype (*other)();/* subr for the other axis device coordinate */
} AxisInfo, *AxisPtr;
typedef struct {
AxisPtr a;
double tic;
double scl;
char *lbl;
} TicInfo, *TicPtr;
void PROTO( AxisInit, (Mode) );
void PROTO( TicInit, (Mode) );
Ptype PROTO( X, (double) );
Ptype PROTO( Y, (double) );
COMMON AxisInfo xa, ya;
COMMON TicPtr tics;
COMMON double xfract, yfract,
xmin, xmax, ymin, ymax,
xwmins, xwmaxs, ywmins, ywmaxs;
COMMON Boolean ticlogic;
COMMON Ptype xwmin, xwmax, ywmin, ywmax;
COMMON Uint ntics, maxtics;
COMMON char *axisfile, *gridfg, *gridtype;