File: plot.h

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#ifndef PLOT_H

/*
 * Simple diagnostic 2d plot function
 *
 * Copyright 1998 - 2004 Graeme W. Gill
 * All rights reserved.
 *
 * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :-
 * see the License.txt file for licencing details.
 */

/* MXGPHS is defined in aconfig.h */

extern int plot_colors[MXGPHS][3];

/* Graph order is Black = Y1, Red = Y2, Green = Y3, Blue = Y4, Yellow = Y5, Purple = Y6 */
/* Brown = Y7, Orange = Y8, Grey = Y9, White = Y10  */

/* A plot color */
typedef struct {
	float rgb[3];
} plot_col;

/* Plot Symbol type */
typedef enum {
    plotNoSym	    = 0,
    plotDiagCross	= 1,
    plotOrthCross	= 2,
    plotSquare		= 3,
    plotDiamond		= 4,
    plotUpTriang	= 5, 
    plotDownTriang	= 6 
} plot_sym;

/* Plot up to 3 X/Y Graphs. return when the user closes the window */
/* return 0 on success, -1 on error */
int do_plot(double *x, double *y1, double *y2, double *y3, int n);

/* Plot up to 3 graphs. */
/* if dowait > 0, wait for user key */
/* if dowait < 0, wait for no seconds */
/* If xmax > xmin, use as x scale, else auto. */
/* If ymax > ymin, use as y scale, else auto. */
/* ratio is window X / Y */
/* return 0 on success, -1 on error */
/* If n is -ve, reverse the X axis */
int do_plot_x(double *x, double *y1, double *y2, double *y3, int n,
int dowait, double pxmin, double pxmax, double pymin, double pymax, double ratio);

/* Plot up to 3 graphs + crosses. Wait for key */
/* return 0 on success, -1 on error */
/* If n is -ve, reverse the X axis */
int do_plot_p(double *x, double *y1, double *y2, double *y3, int n,
              double *x4, double *y4, int m);

/* Public routines */
/* Plot up to 6 graphs */
/* return 0 on success, -1 on error */
/* Graph order is Black = Y1, Red = Y2, Green = Y3, Blue = Y4, Yellow = Y5, Purple = Y6 */
int do_plot6(double *x, double *y1, double *y2, double *y3, double *y4, double *y5, double *y6, int n);

/* Plot up to 6 graphs + optional crosses. Wait for a key */
/* return 0 on success, -1 on error */
/* If n is -ve, reverse the X axis */
int do_plot6p(double *x, double *y1, double *y2, double *y3, double *y4, double *y5, double *y6,
              int n, double *x7, double *y7, int m);

/* Public routines */
/* Plot up to 10 graphs. Wait for a key */
/* return 0 on success, -1 on error */
/* Graph order is Black = Y1, Red = Y2, Green = Y3, Blue = Y4, Yellow = Y5, Purple = Y6 */
/* Brown = Y7, Orange = Y8, Grey = Y9, White = Y10 */
/* if dozero flag, make sure y range covers zero */
int do_plot10(double *x, double *y1, double *y2, double *y3, double *y4, double *y5, double *y6,
             double *y7, double *y8, double *y9, double *y10,
             int n, int dozero);

/* Plot up to 10 graphs + optional crosses. Wait for a key */
/* return 0 on success, -1 on error */
/* If n is -ve, reverse the X axis */
int do_plot10p(double *x, double *y1, double *y2, double *y3, double *y4, double *y5, double *y6,
               double *y7, double *y8, double *y9, double *y10,
               int n, double *xp, double *yp, int m);

/* Plot up to 10 graphs + optional crosses */
/* if dowait > 0, wait for user key */
/* if dowait < 0, wait for no seconds */
/* return 0 on success, -1 on error */
/* If n is -ve, reverse the X axis */
int do_plot10pw(double *x, double *y1, double *y2, double *y3, double *y4, double *y5, double *y6,
               double *y7, double *y8, double *y9, double *y10,
               int n, double *xp, double *yp, int m, int dowait);

/* Plot up to 10 graphs + optional crosses */
/* if dowait > 0, wait for user key */
/* if dowait < 0, wait for no seconds */
/* return 0 on success, -1 on error */
/* If n is -ve, reverse the X axis */
/* if dozero flag, make sure y range covers zero */
int do_plot10pwz(double *x, double *y1, double *y2, double *y3, double *y4, double *y5, double *y6,
               double *y7, double *y8, double *y9, double *y10,
               int n, double *xp, double *yp, int m, int dowait, int zero);

/* Public routines */
/* Plot up to MXGPHS (16) graphs + optional crosses */
/* yy must be yy[MXGPHS] with unused yy[] == NULL */
int do_plotNpwz(double *x, double **yy, int n, double *xp, double *yp, int m, int dowait, int zero);

/* Plot a bunch of vectors + points + optional colored points & notation */
/* return 0 on success, -1 on error */
/* Vectors are x1, y1 to x2, y2 with 'X' at x2, y2, */
/* Colored annotated Crosss at x3, y3. */
int do_plot_vec(double xmin, double xmax, double ymin, double ymax,
                double *x1, double *y1, double *x2, double *y2, int n,
                int dowait,
				double *x3, double *y3, plot_col *mcols, char **mtext, int m);

/* Plot a bunch of vectors + points + optional colored points & notation */
/* + optional colored vectors */
/* return 0 on success, -1 on error */
/* Vectors are x1, y1 to x2, y2 with annotated 'X' at x2, y2, */
/* Colored annotated Crosss at x3, y3. */
/* Colored vector from x4, y4 to x5, y5 */
int do_plot_vec2(double xmin, double xmax, double ymin, double ymax,
                double *x1, double *y1, double *x2, double *y2, char **ntext, int n,
                int dowait,
				double *x3, double *y3, plot_col *mcols, char **mtext, int m,
				double *x4, double *y4, double *x5, double *y5, plot_col *ocols, int o);

/* Plot a bunch of colored vectors + points + optional colored points & notation */
/* + optional colored vectors */
/* return 0 on success, -1 on error */
/* Vectors are x1, y1 to x2, y2 with color ncols and annotated 'X' at x2, y2, */
/* Colored annotated Crosss at x3, y3. */
/* Colored vector from x4, y4 to x5, y5 */
int do_plot_vec3(double xmin, double xmax, double ymin, double ymax,
         double *x1, double *y1, double *x2, double *y2, plot_col *ncols, char **ntext, int n,
         int dowait,
		 double *x3, double *y3, plot_col *mcols, char **mtext, int m,
		 double *x4, double *y4, double *x5, double *y5, plot_col *ocols, int o);

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/* General plot */

int do_plot_gen(
double ixmin, double ixmax, double iymin, double iymax,		/* Graph range, */
						/* xmin == xmax, ymin == ymax for auto bound on data */
double ratio, 			/* X/Y graph ratio */
int zero,				/* Force ymin to be zero */
int dowait,				/* Wait for user key */
double *x1, double *y1, double *x2, double *y2, plot_col *ocols, int o,		/* Line segments */
double *x3, double *y3, plot_sym *tp, plot_col *pcols, char **ptext, int p	/* Symbols */
);

/* General plot helpers */

typedef struct {
	double *x1, *y1, *x2, *y2;
	plot_col *ocols;
	int o, oa;

	double *x3, *y3;
	plot_sym *tp;
	plot_col *pcols;
	char **ptext;
	int p, pa;
} plot_g;

/* rgb, text may be NULL for default/none */
/* Have to clear list after do_plot_g() */
void init_g(plot_g *g);
void add_vec_g(plot_g *g, double x1, double y1, double x2, double y2, float *rgb);
void add_sym_g(plot_g *g, double x3, double y3, plot_sym st, float *rgb, char *ptext);
int get_xy_g(plot_g *g, double xy[2], int ix);		/* Fetch point at index */
int set_xy_g(plot_g *g, double xy[2], int ix);		/* Change point at index */
int get_vxyix_g(plot_g *g);							/* Get the current index number */
void do_plot_g(plot_g *g,
 double xmin, double xmax, double ymin, double ymax,
         double ratio, int zero, int dowait);
void clear_g(plot_g *g);

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - */


#define PLOT_H
#endif /* PLOT_H */