gpx.h File Reference

#include <glib.h>
#include "common/image.h"

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Data Structures
struct	dt_gpx_track_point_t
struct	dt_gpx_track_segment_t

Macros
#define	EARTH_RADIUS   6378100.0 /* in meters */
#define	DT_MINIMUM_DISTANCE_FOR_GEODESIC   100000.0 /* in meters */
#define	DT_MINIMUM_ANGULAR_DELTA_FOR_GEODESIC   1.0

Typedefs
typedef struct dt_gpx_track_point_t	dt_gpx_track_point_t
typedef struct dt_gpx_track_segment_t	dt_gpx_track_segment_t

Functions
struct dt_gpx_t *	dt_gpx_new (const gchar *filename)
void	dt_gpx_destroy (struct dt_gpx_t *gpx)
gboolean	dt_gpx_get_location (struct dt_gpx_t *, GDateTime *timestamp, dt_image_geoloc_t *geoloc)
GList *	dt_gpx_get_trkseg (struct dt_gpx_t *gpx)
GList *	dt_gpx_get_trkpts (struct dt_gpx_t *gpx, const guint segid)
void	dt_gpx_geodesic_distance (double lat1, double lon1, double lat2, double lon2, double *d, double *delta)
void	dt_gpx_geodesic_intermediate_point (const double lat1, const double lon1, const double lat2, const double lon2, const double delta, const gboolean first_time, double f, double *lat, double *lon)

Macro Definition Documentation

DT_MINIMUM_ANGULAR_DELTA_FOR_GEODESIC

#define DT_MINIMUM_ANGULAR_DELTA_FOR_GEODESIC   1.0

DT_MINIMUM_DISTANCE_FOR_GEODESIC

#define DT_MINIMUM_DISTANCE_FOR_GEODESIC   100000.0 /* in meters */

EARTH_RADIUS

#define EARTH_RADIUS   6378100.0 /* in meters */

Typedef Documentation

dt_gpx_track_point_t

typedef struct dt_gpx_track_point_t dt_gpx_track_point_t

dt_gpx_track_segment_t

typedef struct dt_gpx_track_segment_t dt_gpx_track_segment_t

Function Documentation

dt_gpx_destroy()

void dt_gpx_destroy

(

struct dt_gpx_t *

gpx

)

References _track_pts_free(), _track_seg_free(), dt_gpx_t::trkpts, and dt_gpx_t::trksegs.

Referenced by _preview_gpx_file(), and dt_control_gpx_apply_job_run().

dt_gpx_geodesic_distance()

void dt_gpx_geodesic_distance	(	double	lat1,
		double	lon1,
		double	lat2,
		double	lon2,
		double *	d,
		double *	delta
	)

References EARTH_RADIUS, and M_PI.

Referenced by _track_add_point(), and dt_gpx_get_location().

dt_gpx_geodesic_intermediate_point()

void dt_gpx_geodesic_intermediate_point	(	const double	lat1,
		const double	lon1,
		const double	lat2,
		const double	lon2,
		const double	delta,
		const gboolean	first_time,
		double	f,
		double *	lat,
		double *	lon
	)

References f(), lat, lon, and M_PI.

Referenced by _track_add_point(), and dt_gpx_get_location().

dt_gpx_get_location()

gboolean dt_gpx_get_location	(	struct dt_gpx_t *	gpx,
		GDateTime *	timestamp,
		dt_image_geoloc_t *	geoloc
	)

References double(), dt_gpx_geodesic_distance(), dt_gpx_geodesic_intermediate_point(), DT_MINIMUM_ANGULAR_DELTA_FOR_GEODESIC, dt_gpx_track_point_t::elevation, dt_image_geoloc_t::elevation, f(), FALSE, g_list_shorter_than(), lat, dt_gpx_track_point_t::latitude, dt_image_geoloc_t::latitude, lon, dt_gpx_track_point_t::longitude, dt_image_geoloc_t::longitude, dt_gpx_track_point_t::time, dt_gpx_t::trkpts, and TRUE.

Referenced by dt_control_gpx_apply_job_run().

dt_gpx_get_trkpts()

GList * dt_gpx_get_trkpts	(	struct dt_gpx_t *	gpx,
		const guint	segid
	)

References dt_gpx_track_point_t::latitude, dt_gpx_track_point_t::longitude, dt_gpx_track_point_t::segid, dt_gpx_track_segment_t::trkpt, dt_gpx_t::trkpts, and dt_gpx_t::trksegs.

dt_gpx_get_trkseg()

GList * dt_gpx_get_trkseg

(

struct dt_gpx_t *

gpx

)

References dt_gpx_t::trksegs.

Referenced by _preview_gpx_file().

dt_gpx_new()

struct dt_gpx_t * dt_gpx_new

(

const gchar *

filename

)

References _gpx_parser, _sort_segment(), _sort_track(), error(), FALSE, dt_gpx_t::trkpts, and dt_gpx_t::trksegs.

Referenced by _preview_gpx_file(), and dt_control_gpx_apply_job_run().