coord.h

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#ifndef NAVIT_COORD_H
#define NAVIT_COORD_H
 
#ifdef __cplusplus
extern "C" {
#endif
#include "config.h"
#include "projection.h"
#include <math.h>
#include <stdio.h>
 
#define coord_is_equal(a, b) ((a).x == (b).x && (a).y == (b).y)
 
struct coord {
    int x; 
    int y; 
};
 
struct lcoord {
    struct coord c; 
    char *label;    
};
 
struct pcoord {
    enum projection pro;
    int x; 
    int y; 
};
 
struct coord_rect {
    struct coord lu;
    struct coord rl;
};
 
#ifdef AVOID_FLOAT
typedef float navit_float;
#    define navit_sin(x) sinf(x)
#    define navit_cos(x) cosf(x)
#    define navit_tan(x) tanf(x)
#    define navit_atan(x) atanf(x)
#    define navit_acos(x) acosf(x)
#    define navit_asin(x) asinf(x)
#    define navit_sqrt(x) sqrtf(x)
#else
typedef double navit_float;
#    define navit_sin(x) sin(x)
#    define navit_cos(x) cos(x)
#    define navit_tan(x) tan(x)
#    define navit_atan(x) atan(x)
#    define navit_acos(x) acos(x)
#    define navit_asin(x) asin(x)
#    define navit_sqrt(x) sqrt(x)
#endif
 
struct coord_d {
    double x; 
    double y; 
};
 
struct coord_geo {
    navit_float lng; 
    navit_float lat; 
};
 
struct coord_geo_cart {
    navit_float x; 
    navit_float y; 
    navit_float z; 
};
 
enum coord_format {
    DEGREES_DECIMAL_ABSOLUTE,
 
    DEGREES_DECIMAL,
 
    DEGREES_MINUTES,
 
    DEGREES_MINUTES_SECONDS,
 
    DEGREES_MINUTES_SECONDS_BRIEF
};
 
struct attr;
 
struct coord *coord_get(unsigned char **p);
struct coord *coord_new(int x, int y);
struct coord *coord_new_from_attrs(struct attr *parent, struct attr **attrs);
void coord_destroy(struct coord *c);
int coord_parse(const char *c_str, enum projection pro, struct coord *c_ret);
int pcoord_parse(const char *c_str, enum projection pro, struct pcoord *c_ret);
void coord_print(enum projection pro, struct coord *c, FILE *out);
struct coord_rect *coord_rect_new(struct coord *lu, struct coord *rl);
void coord_rect_destroy(struct coord_rect *r);
int coord_rect_overlap(struct coord_rect *r1, struct coord_rect *r2);
int coord_rect_contains(struct coord_rect *r, struct coord *c);
void coord_rect_extend(struct coord_rect *r, struct coord *c);
void coord_format_with_sep(float lat, float lng, enum coord_format fmt, char *buffer, int size, const char *sep);
void coord_format(float lat, float lng, enum coord_format fmt, char *buffer, int size);
void coord_geo_format_short(const struct coord_geo *gc, char *buffer, int size, char *sep);
void pcoord_format_degree_short(const struct pcoord *pc, char *buffer, int size, char *sep);
void pcoord_format_absolute(const struct pcoord *pc, char *buffer, int size, char *sep);
char *coordinates_geo(const struct coord_geo *gc, char sep);
 
/* prototypes */
struct coord *coord_get(unsigned char **p);
struct coord *coord_new(int x, int y);
struct coord *coord_new_from_attrs(struct attr *parent, struct attr **attrs);
void coord_destroy(struct coord *c);
struct coord_rect *coord_rect_new(struct coord *lu, struct coord *rl);
void coord_rect_destroy(struct coord_rect *r);
int coord_rect_overlap(struct coord_rect *r1, struct coord_rect *r2);
int coord_rect_contains(struct coord_rect *r, struct coord *c);
void coord_rect_extend(struct coord_rect *r, struct coord *c);
int coord_parse(const char *c_str, enum projection pro, struct coord *c_ret);
int pcoord_parse(const char *c_str, enum projection pro, struct pcoord *pc_ret);
void coord_print(enum projection pro, struct coord *c, FILE *out);
void coord_format(float lat, float lng, enum coord_format fmt, char *buffer, int size);
unsigned int coord_hash(const void *key);
int coord_equal(const void *a, const void *b);
/* end of prototypes */
#ifdef __cplusplus
}
#endif
#endif