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/*
* Header for spectre-help.c
*/
/* Dummy value indicating no specific hexagon, used in some diagrams
* for the accompanying article. */
#define NO_HEX (Hex)9
/*
* String constants for the hex names, including an extra entry
* mapping NO_HEX to the empty string.
*/
extern const char *hex_names[10];
typedef struct Graphics {
FILE *fp;
bool close_file; /* if it's not stdout */
bool started; /* have we written the header yet? */
double xoff, xscale, yoff, yscale, absscale, linewidth;
bool jigsaw_mode; /* draw protrusions on hex edges */
bool vertex_blobs; /* draw blobs marking hex vertices */
bool hex_arrows; /* draw arrows orienting each hex */
bool number_edges; /* number the edges of everything */
bool number_cells; /* number the things themselves */
bool four_colour; /* four-colour Spectres instead of semantically */
bool arcs; /* draw Spectre edges as arcs */
} Graphics;
typedef struct GrCoords {
double x, y;
} GrCoords;
Graphics *gr_new(const char *filename, double xmin, double xmax,
double ymin, double ymax, double scale);
void gr_free(Graphics *gr);
GrCoords gr_logcoords(Point p);
GrCoords gr_log2phys(Graphics *gr, GrCoords c);
GrCoords gr_physcoords(Graphics *gr, Point p);
void gr_draw_text(Graphics *gr, GrCoords logpos, double logheight,
const char *text);
void gr_draw_path(Graphics *gr, const char *classes, const GrCoords *phys,
size_t n, bool closed);
void gr_draw_blob(Graphics *gr, const char *classes, GrCoords log,
double logradius);
void gr_draw_hex(Graphics *gr, unsigned index, Hex htype,
const Point *vertices);
void gr_draw_spectre(Graphics *gr, Hex container, unsigned index,
const Point *vertices);
void gr_draw_spectre_from_coords(Graphics *gr, SpectreCoords *sc,
const Point *vertices);
void gr_draw_extra_edge(Graphics *gr, Point a, Point b);
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