1 /*****************************************************************************
5 ** Purpose: Header file for EZplot library
7 ** This is part of the CTSim program
8 ** Copyright (C) 1983-2000 Kevin Rosenberg
10 ** $Id: ezplot.h,v 1.19 2000/12/20 14:39:09 kevin Exp $
12 ** This program is free software; you can redistribute it and/or modify
13 ** it under the terms of the GNU General Public License (version 2) as
14 ** published by the Free Software Foundation.
16 ** This program is distributed in the hope that it will be useful,
17 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ** GNU General Public License for more details.
21 ** You should have received a copy of the GNU General Public License
22 ** along with this program; if not, write to the Free Software
23 ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 ******************************************************************************/
34 #include "ctsupport.h"
47 std::string m_sLegend;
49 EZPlotCurve (const double* x, const double* y, int n, int color, int linestyle, int symbol, int sumbolFreq, const std::string& legend);
54 //----------------------------------------------------------------------
56 //----------------------------------------------------------------------
59 #define LINEAR 1 // linear axis
60 #define LOG 2 // logrithmic axis
61 #define NOAXIS 3 // don't plot axis
86 #define INSIDE 1 // values of o_legendbox
90 /*-----------------------------------------------------------------------------
94 * i_ Internal variable
97 * Normal variable that is user modifiable
98 * These variables must always have a valid value
100 * Variables controlling devices
101 * clr_ Color variable
102 * Holds a color value
103 * c_ Character string variable
104 * Contains a character string
106 * User modifiable variable associated with the set variable (s_)
107 * These variables do not always have a valid value
108 * These variables change assumption EZPLOT makes about the plot
110 * TRUE if associated value variable (v_) has been set by the user
111 *---------------------------------------------------------------------------*/
115 typedef std::vector<EZPlotCurve*>::iterator EZPlotCurveIterator;
116 typedef std::vector<EZPlotCurve*>::const_iterator EZPlotCurveConstIterator;
121 std::vector<class EZPlotCurve*> m_vecCurves;
124 int clr_axis; // color of all axis lines
125 int clr_title; // color of main title
126 int clr_label; // color of axis labels
127 int clr_legend; // color of legend box
128 int clr_grid; // color of grid lines
129 int clr_number; // color of axis number labels
132 double o_xporigin, o_yporigin; // origin of plot frame in NDC
133 double o_xlength, o_ylength; // length of plot frame in NDC
135 std::string c_xlabel; // label for x axis
136 std::string c_ylabel; // label for y axis
137 std::string c_title; // title to print above graph
138 std::string c_legend;; // current legend specified
140 int o_linestyle, o_color; // style to use for curves all subsequent curves to EZPLOT
141 int o_xaxis, o_yaxis; // Specifies where axis & labels are drawn
142 bool o_grid; // Flag to draw a grid at major ticks
143 bool o_box; // Flag to draw a box around the graph
145 int o_xticks, o_yticks; // direction to draw tick marks
146 bool o_xtlabel, o_ytlabel; // TRUE if label tick marks
148 int o_xmajortick, o_ymajortick; // number of major ticks to draw
149 int o_xminortick, o_yminortick; // number of minor ticks between major ticks
151 int o_symbol; // Symbol type, (0 = no symbol)
152 int o_symfreq; // frequency to draw symbols at curve points
154 int o_legendbox; // controls whether legend is inside or outside of the axis extents
155 int o_tag; // controls whether to draw tag at end of axes
157 // VALUE & SET variables
158 double v_xmin, v_xmax, v_ymin, v_ymax; // user supplied axis endpoints
159 bool s_xmin, s_xmax, s_ymin, s_ymax; // TRUE is endpoint has been set
160 double v_xtitle, v_ytitle; // NDC position to plot title
161 bool s_xtitle, s_ytitle; // TRUE if set position for title
162 double v_xcross, v_ycross; // position that axes cross
163 bool s_xcross, s_ycross; // TRUE if set axes cross position
164 double v_xlegend, v_ylegend; // upper-left position of legend box in NDC
165 bool s_xlegend, s_ylegend; // TRUE if set position of legend box
166 int v_lxfrac, v_lyfrac; // number of digits to right of decimal place
167 bool s_lxfrac, s_lyfrac; // TRUE if set number of fractional digits
168 double v_textsize; // size of text in NDC
169 bool s_textsize; // TRUE if user set size of text
172 double charheight; // Height of characters in NDC
173 double charwidth; // Height of characters in NDC
174 double xp_min, xp_max, yp_min, yp_max; // boundry of plot frame in NDC
175 double xa_min, xa_max, ya_min, ya_max; // extent of axes in NDC
176 double xgw_min, xgw_max, ygw_min, ygw_max; // boundary of graph in input coords
177 double xgn_min, xgn_max, ygn_min, ygn_max; // boundy of graph in NDC
178 double xt_min, xt_max, yt_min, yt_max; // boundary of axis ticks
179 double xl_min, xl_max, yl_min, yl_max; // boundary of legend box
180 double title_row; // y-coord of title row
181 double xtl_ofs; // Offset y-coord of x tick labels from axis
182 double ytl_ofs; // Offset x-coord of y tick labels from axis
183 double xlbl_row; // row of x label in world coord
184 double ylbl_col; // column of y label in world coord
185 double xw_tickinc, yw_tickinc; // increment between major ticks in WC
186 double xn_tickinc, yn_tickinc; // increment between major ticks in NDC
187 int x_nint, y_nint; // number of intervals along x & y axes
188 int x_fldwid, x_frac; // numeric field sizes & number of digits
189 int y_fldwid, y_frac; // in fraction of number, used for printf()
190 double xtl_wid, ytl_wid; // length of ticks labels in NDC
191 double tl_height; // height of tick labels in NDC
192 char x_numfmt[20]; // format to print x tick labels
193 char y_numfmt[20]; // format to print y tick labels
195 double m_dVP_xmin, m_dVP_ymin;
196 double m_dVP_xmax, m_dVP_ymax;
197 double m_dVP_xscale, m_dVP_yscale;
198 double m_xWorldScale, m_yWorldScale;
201 void symbol (int sym, double symwidth, double symheight);
202 void make_numfmt(char *fmtstr, int *fldwid, int *nfrac, double min, double max, int nint);
203 int axis_scale (double min, double max, int nint, double *minp, double *maxp, int *nintp);
209 bool ezcmd (const char const *comm);
\r
211 void bad_option(char *opt);
212 void initPlotSettings();
214 static void initkw(void);
216 static bool ezset_initialized;
218 double convertWorldToNDC_X (double x)
219 { return xgn_min + (x - xgw_min) * m_xWorldScale; }
221 double convertWorldToNDC_Y (double y)
222 { return ygn_min + (y - ygw_min) * m_yWorldScale; }
228 bool ezset (const std::string& command);
\r
229 bool ezset (const char const *command);
231 void addCurve (const float* x, const double* y, int num);
232 void addCurve (const double* x, const float* y, int num);
233 void addCurve (const double* x, const double* y, int num);
234 void addCurve (const double* y, int n);
235 void addCurve (const float* y, int n);
240 //----------------------------------------------------------------------
242 //----------------------------------------------------------------------
260 #define S_XLEGEND -25
261 #define S_YLEGEND -26
268 #define S_XLENGTH -33
269 #define S_YLENGTH -34
275 #define S_NOLABEL -40
278 #define S_XAUTOSCALE -43
279 #define S_YAUTOSCALE -44
288 #define S_NOXAXIS -53
289 #define S_NOYAXIS -54
290 #define S_XPORIGIN -55
291 #define S_YPORIGIN -56
298 #define S_RESTORE -63
301 #define S_INTERACTIVE -68
309 #define S_NOGRID -103
313 #define S_LEGENDBOX -107
316 #define S_TEXTSIZE -120