1 /*****************************************************************************
2 ** This is part of the CTSim program
3 ** Copyright (C) 1983-2000 Kevin Rosenberg
5 ** $Id: ezplot.h,v 1.3 2000/05/07 12:46:19 kevin Exp $
7 ** Revision 1.3 2000/05/07 12:46:19 kevin
10 ** Revision 1.2 2000/04/28 14:14:16 kevin
11 ** *** empty log message ***
14 ** This program is free software; you can redistribute it and/or modify
15 ** it under the terms of the GNU General Public License (version 2) as
16 ** published by the Free Software Foundation.
18 ** This program is distributed in the hope that it will be useful,
19 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
20 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 ** GNU General Public License for more details.
23 ** You should have received a copy of the GNU General Public License
24 ** along with this program; if not, write to the Free Software
25 ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 ******************************************************************************/
27 /*----------------------------------------------------------------------*/
30 /*----------------------------------------------------------------------*/
37 #endif /* __cplusplus */
49 #define MAXLABEL 40 /* maximum length of axis label */
50 #define MAXTITLE 40 /* maximum length of a title */
51 #define MAXLEGEND 20 /* maximum length of a legend */
52 #define MAXCURVES 10 /* maximum number of curves that can be plotted */
53 #define MAXPTS 200 /* max number of points that can be read with
54 DATA command in INTERACTIVE mode */
63 char legend[MAXLEGEND+1];
67 #define YBUF_DEF XBUF_DEF * (72. / 120.) * 0.75
70 /*----------------------------------------------------------------------*/
72 /*----------------------------------------------------------------------*/
101 #define S_XLENGTH -33
102 #define S_YLENGTH -34
108 #define S_NOLABEL -40
111 #define S_XAUTOSCALE -43
112 #define S_YAUTOSCALE -44
121 #define S_NOXAXIS -53
122 #define S_NOYAXIS -54
123 #define S_XPORIGIN -55
124 #define S_YPORIGIN -56
131 #define S_RESTORE -63
133 #define S_UFINISH -65
136 #define S_INTERACTIVE -68
144 #define S_NOGRID -103
148 #define S_LEGENDBOX -107
154 #define S_TEXTSIZE -120
157 #define S_PRTMODE -123
159 /*----------------------------------------------------------------------*/
160 /* GLOBAL VARIABLES */
161 /*----------------------------------------------------------------------*/
163 /* axis definitions */
164 #define LINEAR 1 /* linear axis */
165 #define LOG 2 /* logrithmic axis */
166 #define NOAXIS 3 /* don't plot axis */
168 /* tick definitions */
183 /* symbol definitions */
188 #define SB_ERRORBAR 5
191 #define INSIDE 1 /* values of o_legendbox */
195 /*-----------------------------------------------------------------------------
199 * i_ Internal variable
202 * Normal variable that is user modifiable
203 * These variables must always have a valid value
205 * Variables controlling devices
206 * clr_ Color variable
207 * Holds a color value
208 * c_ Character string variable
209 * Contains a character string
211 * User modifiable variable associated with the set variable (s_)
212 * These variables do not always have a valid value
213 * These variables change assumption EZPLOT makes about the plot
215 * TRUE if associated value variable (v_) has been set by the user
216 *---------------------------------------------------------------------------*/
225 struct ezp_curve_st curve[MAXCURVES];
227 /*--------------------*/
228 /* INTERNAL VARIABLES */
229 /*--------------------*/
231 bool i_plotimmediate; /* indicates that a call to EZPLOT is a signal
232 to print all received arrays. EZSET uses
233 this variable to force EZPLOT to replot
235 int i_numcurves; /* number of curves received by EZPLOT */
237 /*------------------*/
238 /* DEVICE VARIABLES */
239 /*------------------*/
241 bool d_usecrt; /* TRUE if want to use CRT as output device */
242 bool d_useprt; /* TRUE if wamt to use printer as output device */
244 int d_crtmode; /* Controls which crt mode to use for plot */
245 int d_prtmode; /* Controls mode of printer output */
247 int d_xprtbuf, d_yprtbuf; /* Size of printer buffer in pixels */
249 /*-----------------*/
250 /* COLOR VARIABLES */
251 /*-----------------*/
253 int clr_axis; /* color of all axis lines */
254 int clr_title; /* color of main title */
255 int clr_label; /* color of axis labels */
256 int clr_legend; /* color of legend box */
257 int clr_grid; /* color of grid lines */
258 int clr_number; /* color of axis number labels */
260 /*------------------*/
261 /* OPTION VARIABLES */
262 /*------------------*/
264 int o_reqcurves; /* # of curves specified in CURVES command */
265 /* default value is 1, so that a call to EZPLOT
267 bool o_unknowncurves; /* TRUE when the user specifies that the
268 number of curves is unknown */
270 bool o_ustart, o_ufinish; /* TRUE if user initiates or terminate sgp */
272 double o_xporigin, o_yporigin; /* origin of plot frame in NDC */
273 double o_xlength, o_ylength; /* length of plot frame in NDC */
275 char c_xlabel[MAXLABEL+1]; /* label for x axis */
276 char c_ylabel[MAXLABEL+1]; /* label for y axis */
277 char c_title[MAXTITLE+1]; /* title to print above graph */
278 char c_legend[MAXLEGEND+1]; /* current legend specified */
280 int o_linestyle, o_color; /* style to use for curves all subsequent */
281 /* curves to EZPLOT */
282 bool o_xaxis, o_yaxis; /* Specifies where axis & labels are drawn */
283 bool o_grid; /* Flag to draw a grid at major ticks */
284 bool o_box; /* Flag to draw a box around the graph */
286 int o_xticks, o_yticks; /* direction to draw tick marks */
287 bool o_xtlabel, o_ytlabel; /* TRUE if label tick marks */
289 int o_xmajortick, o_ymajortick; /* number of major ticks to draw */
290 int o_xminortick, o_yminortick; /* number of minor ticks between major ticks */
292 int o_symbol; /* Symbol type, (0 = no symbol) */
293 int o_symfreq; /* frequency to draw symbols at curve points */
295 int o_legendbox; /* controls whether legend is inside */
296 /* or outside of the axis extents */
297 int o_tag; /* controls whether to draw tag at end of axes */
299 /*-----------------------*/
300 /* VALUE & SET variables */
301 /*-----------------------*/
303 double v_xmin, v_xmax, v_ymin, v_ymax; /* user supplied axis endpoints */
304 bool s_xmin, s_xmax, s_ymin, s_ymax; /* TRUE is endpoint has been set */
306 double v_xtitle, v_ytitle; /* NDC position to plot title */
307 bool s_xtitle, s_ytitle; /* TRUE if set position for title */
308 double v_xcross, v_ycross; /* position that axes cross */
309 bool s_xcross, s_ycross; /* TRUE if set axes cross position */
311 double v_xlegend, v_ylegend; /* upper-left position of legend box in NDC */
312 bool s_xlegend, s_ylegend; /* TRUE if set position of legend box */
314 int v_lxfrac, v_lyfrac; /* number of digits to right of decimal place */
315 bool s_lxfrac, s_lyfrac; /* TRUE if set number of fractional digits */
317 double v_textsize; /* size of text in NDC */
318 bool s_textsize; /* TRUE if user set size of text */
320 }; /* end of EZPLOT VARIABLES */
324 extern struct ezplot_var ez;
325 extern bool ezplot_firstcall; /* set to false on first call to EZSET or EZPLOT */
329 int axis_scale(double min, double max, int nint, double *minp, double *maxp, int *nintp);
331 int ezplot(double x[], double y[], int num);
336 void ezplot_1d(double *y, int n);
338 int ezset(char *command);
340 void make_numfmt(char *fmtstr, int *fldwid, int *nfrac, double min, double max, int nint);
344 #endif /* __cplusplus */