+// tick definitions
+#define ABOVE 1
+#define BELOW 2
+#define RIGHT 4
+#define LEFT 8
+
+// line types
+#define NOLINE 0
+#define SOLID 1
+#define DASH 2
+#define DASH1 10
+#define DASH2 11
+#define DASH3 12
+#define DASH4 13
+
+// symbol definitions
+#define SB_CROSS 1
+#define SB_PLUS 2
+#define SB_BOX 3
+#define SB_CIRCLE 4
+#define SB_ERRORBAR 5
+#define MAXSYMBOL 5
+
+#define INSIDE 1 // values of o_legendbox
+#define OUTSIDE 2
+#define NOLEGEND 3
+
+/*-----------------------------------------------------------------------------
+ * GLOBAL VARIABLES
+ *
+ * Naming Convention:
+ * i_ Internal variable
+ * Not user changable
+ * o_ Option variable
+ * Normal variable that is user modifiable
+ * These variables must always have a valid value
+ * d_ Device variable
+ * Variables controlling devices
+ * clr_ Color variable
+ * Holds a color value
+ * c_ Character string variable
+ * Contains a character string
+ * v_ Value variable
+ * User modifiable variable associated with the set variable (s_)
+ * These variables do not always have a valid value
+ * These variables change assumption EZPLOT makes about the plot
+ * s_ Set variable.
+ * TRUE if associated value variable (v_) has been set by the user
+ *---------------------------------------------------------------------------*/
+
+#include <vector>
+using namespace std;
+
+typedef vector<EZPlotCurve*>::iterator EZPlotCurveIterator;
+typedef vector<EZPlotCurve*>::const_iterator EZPlotCurveConstIterator;
+
+class SGP;
+class EZPlot {
+ private:
+ vector<class EZPlotCurve*> m_vecCurves;
+
+ // Colors
+ int clr_axis; // color of all axis lines
+ int clr_title; // color of main title
+ int clr_label; // color of axis labels
+ int clr_legend; // color of legend box
+ int clr_grid; // color of grid lines
+ int clr_number; // color of axis number labels
+
+ // Options
+ double o_xporigin, o_yporigin; // origin of plot frame in NDC
+ double o_xlength, o_ylength; // length of plot frame in NDC
+
+ string c_xlabel; // label for x axis
+ string c_ylabel; // label for y axis
+ string c_title; // title to print above graph
+ string c_legend;; // current legend specified
+
+ int o_linestyle, o_color; // style to use for curves all subsequent curves to EZPLOT
+ bool o_xaxis, o_yaxis; // Specifies where axis & labels are drawn
+ bool o_grid; // Flag to draw a grid at major ticks
+ bool o_box; // Flag to draw a box around the graph
+
+ int o_xticks, o_yticks; // direction to draw tick marks
+ bool o_xtlabel, o_ytlabel; // TRUE if label tick marks
+
+ int o_xmajortick, o_ymajortick; // number of major ticks to draw
+ int o_xminortick, o_yminortick; // number of minor ticks between major ticks
+
+ int o_symbol; // Symbol type, (0 = no symbol)
+ int o_symfreq; // frequency to draw symbols at curve points
+
+ int o_legendbox; // controls whether legend is inside or outside of the axis extents
+ int o_tag; // controls whether to draw tag at end of axes
+
+ // VALUE & SET variables
+ double v_xmin, v_xmax, v_ymin, v_ymax; // user supplied axis endpoints
+ bool s_xmin, s_xmax, s_ymin, s_ymax; // TRUE is endpoint has been set
+ double v_xtitle, v_ytitle; // NDC position to plot title
+ bool s_xtitle, s_ytitle; // TRUE if set position for title
+ double v_xcross, v_ycross; // position that axes cross
+ bool s_xcross, s_ycross; // TRUE if set axes cross position
+ double v_xlegend, v_ylegend; // upper-left position of legend box in NDC
+ bool s_xlegend, s_ylegend; // TRUE if set position of legend box
+ int v_lxfrac, v_lyfrac; // number of digits to right of decimal place
+ bool s_lxfrac, s_lyfrac; // TRUE if set number of fractional digits
+ double v_textsize; // size of text in NDC
+ bool s_textsize; // TRUE if user set size of text
+
+ // Global variables
+ double charheight; // Height of characters in NDC
+ double charwidth; // Height of characters in NDC
+ double xp_min, xp_max, yp_min, yp_max; // boundry of plot frame in NDC
+ double xa_min, xa_max, ya_min, ya_max; // extent of axes in NDC
+ double xgw_min, xgw_max, ygw_min, ygw_max; // boundary of graph in input coords
+ double xgn_min, xgn_max, ygn_min, ygn_max; // boundy of graph in NDC
+ double xt_min, xt_max, yt_min, yt_max; // boundary of axis ticks
+ double xl_min, xl_max, yl_min, yl_max; // boundary of legend box
+ double title_row; // y-coord of title row
+ double xtl_ofs; // Offset y-coord of x tick labels from axis
+ double ytl_ofs; // Offset x-coord of y tick labels from axis
+ double xlbl_row; // row of x label in world coord
+ double ylbl_col; // column of y label in world coord
+ double xw_tickinc, yw_tickinc; // increment between major ticks in WC
+ double xn_tickinc, yn_tickinc; // increment between major ticks in NDC
+ int x_nint, y_nint; // number of intervals along x & y axes
+ int x_fldwid, x_frac; // numeric field sizes & number of digits
+ int y_fldwid, y_frac; // in fraction of number, used for printf()
+ double xtl_wid, ytl_wid; // length of ticks labels in NDC
+ double tl_height; // height of tick labels in NDC
+ char x_numfmt[20]; // format to print x tick labels
+ char y_numfmt[20]; // format to print y tick labels
+
+ double m_dVP_xmin, m_dVP_ymin;
+ double m_dVP_xmax, m_dVP_ymax;
+ double m_dVP_xscale, m_dVP_yscale;
+ double m_xWorldScale, m_yWorldScale;
+
+ void drawAxes(void);
+ void symbol (int sym, double symwidth, double symheight);
+ void make_numfmt(char *fmtstr, int *fldwid, int *nfrac, double min, double max, int nint);
+ int axis_scale (double min, double max, int nint, double *minp, double *maxp, int *nintp);
+
+ SGP& rSGP;
+
+ void clearCurves ();
+
+ bool ezcmd (char *comm);
+ int do_cmd(int lx);
+ void bad_option(char *opt);
+ void initPlotSettings();
+
+ static void initkw(void);
+
+ static bool ezset_initialized;
+
+ double convertWorldToNDC_X (double x)
+ { return xgn_min + (x - xgw_min) * m_xWorldScale; }
+
+ double convertWorldToNDC_Y (double y)
+ { return ygn_min + (y - ygw_min) * m_yWorldScale; }
+
+ public:
+ EZPlot (SGP& sgp);
+ ~EZPlot ();
+
+ int ezset (char *command);
+
+ void addCurve (const float* x, const double* y, int num);
+ void addCurve (const double* x, const float* y, int num);
+ void addCurve (const double* x, const double* y, int num);
+ void addCurve (const double* y, int n);
+ void addCurve (const float* y, int n);
+
+ void plot ();
+};
+
+//----------------------------------------------------------------------
+// Codes from LEX
+//----------------------------------------------------------------------