- * 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
- *---------------------------------------------------------------------------*/
-
-
-struct ezplot_var {
-
-/*-------------*/
-/* USER CURVES */
-/*-------------*/
-
-struct ezp_curve_st curve[MAXCURVES];
-
-/*--------------------*/
-/* INTERNAL VARIABLES */
-/*--------------------*/
-
-bool i_plotimmediate; /* indicates that a call to EZPLOT is a signal
- to print all received arrays. EZSET uses
- this variable to force EZPLOT to replot
- its stored curves */
-int i_numcurves; /* number of curves received by EZPLOT */
-
-/*------------------*/
-/* DEVICE VARIABLES */
-/*------------------*/
-
-bool d_usecrt; /* TRUE if want to use CRT as output device */
-bool d_useprt; /* TRUE if wamt to use printer as output device */
-
-int d_crtmode; /* Controls which crt mode to use for plot */
-int d_prtmode; /* Controls mode of printer output */
-
-int d_xprtbuf, d_yprtbuf; /* Size of printer buffer in pixels */
-
-/*-----------------*/
-/* COLOR VARIABLES */
-/*-----------------*/
-
-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 */
-
-/*------------------*/
-/* OPTION VARIABLES */
-/*------------------*/
-
-int o_reqcurves; /* # of curves specified in CURVES command */
- /* default value is 1, so that a call to EZPLOT
- will force a plot */
-bool o_unknowncurves; /* TRUE when the user specifies that the
- number of curves is unknown */
-
-bool o_ustart, o_ufinish; /* TRUE if user initiates or terminate sgp */
-
-double o_xporigin, o_yporigin; /* origin of plot frame in NDC */
-double o_xlength, o_ylength; /* length of plot frame in NDC */
-
-char c_xlabel[MAXLABEL+1]; /* label for x axis */
-char c_ylabel[MAXLABEL+1]; /* label for y axis */
-char c_title[MAXTITLE+1]; /* title to print above graph */
-char c_legend[MAXLEGEND+1]; /* 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 */
-
-}; /* end of EZPLOT VARIABLES */
-
-
-
-extern struct ezplot_var ez;
-extern bool ezplot_firstcall; /* set to false on first call to EZSET or EZPLOT */
-
-
-/* ezplot.cpp */
-SGP_ID ezplot (const float x[], const double y[], int num);
-SGP_ID ezplot (const double x[], const double y[], int num);
-void ezinit(void);
-void ezfree(void);
-void ezclear(void);
-
-/* ezset.cpp */
-int ezset(char *command);
-
-/* ezplot1d.cpp */
-void ezplot_1d(double *y, int n);
-
-/* makefmt.cpp */
-void make_numfmt(char *fmtstr, int *fldwid, int *nfrac, double min, double max, int nint);
-
-/* axis.cpp */
-int axis_scale (double min, double max, int nint, double *minp, double *maxp, int *nintp);
-
-
+* 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>
+
+typedef std::vector<EZPlotCurve*>::iterator EZPlotCurveIterator;
+typedef std::vector<EZPlotCurve*>::const_iterator EZPlotCurveConstIterator;
+
+class SGP;
+class EZPlot {
+private:
+ //----------------------------------------------------------------------
+ // POL Codes
+ //----------------------------------------------------------------------
+
+ enum {
+ S_DATA = 2,
+ S_HELP,
+ S_EXIT,
+ S_CURVE,
+ S_SOLID,
+ S_DASH,
+ S_NOLINE,
+ S_BLACK,
+ S_RED,
+ S_GREEN,
+ S_BLUE,
+ S_SYMBOL,
+ S_PEN,
+ S_EVERY,
+ S_NONE,
+ S_LEGEND,
+ S_XLEGEND,
+ S_YLEGEND,
+ S_XLIN,
+ S_YLIN,
+ S_XLOG,
+ S_YLOG,
+ S_XLABEL,
+ S_YLABEL,
+ S_XLENGTH,
+ S_YLENGTH,
+ S_XTICKS,
+ S_YTICKS,
+ S_ABOVE,
+ S_LABEL,
+ S_BELOW,
+ S_NOLABEL,
+ S_RIGHT,
+ S_LEFT,
+ S_XAUTOSCALE,
+ S_YAUTOSCALE,
+ S_XMIN,
+ S_YMIN,
+ S_XMAX,
+ S_YMAX,
+ S_LXFRAC,
+ S_LYFRAC,
+ S_XCROSS,
+ S_YCROSS,
+ S_NOXAXIS,
+ S_NOYAXIS,
+ S_XPORIGIN,
+ S_YPORIGIN,
+ S_TITLE,
+ S_XTITLE,
+ S_YTITLE,
+ S_REPLOT,
+ S_CLEAR,
+ S_STORE,
+ S_RESTORE,
+ S_AMARK,
+ S_NO,
+ S_INTERACTIVE,
+ S_UNITS,
+ S_INCHES,
+ S_USER,
+ S_BOX,
+ S_NOBOX,
+ S_GRID,
+ S_NOGRID,
+ S_MAJOR,
+ S_MINOR,
+ S_COLOR,
+ S_LEGENDBOX,
+ S_TAG,
+ S_TEXTSIZE,
+ };
+
+ static const struct KeywordCodeTable m_sKeywords[];
+ static const int NKEYS;
+
+ std::vector<class EZPlotCurve*> m_vecCurves;
+ std::vector<int> m_veciColor;
+ std::vector<bool> m_vecbColorSet;
+ std::vector<int> m_veciSymbol;
+ std::vector<bool> m_vecbSymbolSet;
+ std::vector<int> m_veciSymbolFreq;
+ std::vector<bool> m_vecbSymbolFreqSet;
+ std::vector<int> m_veciLinestyle;
+ std::vector<bool> m_vecbLinestyleSet;
+ std::vector<std::string> m_vecsLegend;
+ std::vector<bool> m_vecbLegendSet;
+
+ int getColor (unsigned int iCurve) const;
+ int getSymbol (unsigned int iCurve) const;
+ const std::string* getLegend (unsigned int iCurve) const;
+ int getSymbolFreq (unsigned int iCurve) const;
+ int getLinestyle (unsigned int iCurve) const;
+
+ void setColor (unsigned int iCurve, int iColor);
+ void setSymbol (unsigned int iCurve, int iSymbol);
+ void setSymbolFreq (unsigned int iCurve, int iSymbolFreq);
+ void setLinestyle (unsigned int iCurve, int iLinestyle);
+ void setLegend (unsigned int iCurve, const std::string& strLegend);
+ void setLegend (unsigned int iCurve, const char* const pszLegend);
+
+ int m_iCurrentCurve;
+
+ // 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
+
+ std::string c_xlabel; // label for x axis
+ std::string c_ylabel; // label for y axis
+ std::string c_title; // title to print above graph
+
+ int o_linestyle, o_color; // style to use for curves all subsequent curves to EZPLOT
+ int 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 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* m_pSGP;
+ POL m_pol;
+
+ void clearCurves ();
+
+ bool ezcmd (const char* const comm);
+ bool do_cmd(int lx);
+ void bad_option(char *opt);
+ void initPlotSettings();
+
+ void initKeywords ();
+
+ 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 ();
+ ~EZPlot ();
+
+ bool ezset (const std::string& command);
+ bool ezset (const char* const 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 (SGP* pSGP);
+};