Add a Gradient Graph to the Track properties display

[andy/viking.git] / src / viktrack.h

diff --git a/src/viktrack.h b/src/viktrack.h
index 06a1c913d3cc3249c291e57947b5b6516606d05a..a3843d1313f4227f20f8f62b3b389a6905cd1623 100644 (file)
--- a/src/viktrack.h
+++ b/src/viktrack.h
@@ -39,17 +39,18 @@ struct _VikTrackpoint {
   gboolean newsegment;
   gboolean has_timestamp;
   time_t timestamp;
-  gdouble altitude;    /* only in 3D fixes */
-  /* Most GPSs provide this in realtime mode (NMEA) but not in data mode */
-  gboolean extended;
-  gdouble speed;       /* only in 3D fixes */
-  gdouble course;
-  guint nsats;         /* number of satellites used */
+  gdouble altitude;    /* VIK_DEFAULT_ALTITUDE if data unavailable */
+  gdouble speed;       /* NAN if data unavailable */
+  gdouble course;   /* NAN if data unavailable */
+  guint nsats;      /* number of satellites used. 0 if data unavailable */
 #define VIK_GPS_MODE_NOT_SEEN  0       /* mode update not seen yet */
 #define VIK_GPS_MODE_NO_FIX    1       /* none */
 #define VIK_GPS_MODE_2D        2       /* good for latitude/longitude */
 #define VIK_GPS_MODE_3D        3       /* good for altitude/climb too */
-  gint fix_mode;
+  gint fix_mode;    /* VIK_GPS_MODE_NOT_SEEN if data unavailable */
+  gdouble hdop;     /* VIK_DEFAULT_DOP if data unavailable */
+  gdouble vdop;     /* VIK_DEFAULT_DOP if data unavailable */
+  gdouble pdop;     /* VIK_DEFAULT_DOP if data unavailable */
 };
 
 typedef struct _VikTrack VikTrack;
@@ -82,26 +83,37 @@ void vik_track_remove_dup_points ( VikTrack *vt );
 
 gdouble vik_track_get_max_speed(const VikTrack *tr);
 gdouble vik_track_get_average_speed(const VikTrack *tr);
+gdouble vik_track_get_average_speed_moving ( const VikTrack *tr, int stop_length_seconds );
 
 void vik_track_convert ( VikTrack *tr, VikCoordMode dest_mode );
 gdouble *vik_track_make_elevation_map ( const VikTrack *tr, guint16 num_chunks );
 void vik_track_get_total_elevation_gain(const VikTrack *tr, gdouble *up, gdouble *down);
 VikTrackpoint *vik_track_get_closest_tp_by_percentage_dist ( VikTrack *tr, gdouble reldist, gdouble *meters_from_start );
 VikTrackpoint *vik_track_get_closest_tp_by_percentage_time ( VikTrack *tr, gdouble reldist, time_t *seconds_from_start );
+VikTrackpoint *vik_track_get_tp_by_max_speed ( const VikTrack *tr );
+VikTrackpoint *vik_track_get_tp_by_max_alt ( const VikTrack *tr );
+VikTrackpoint *vik_track_get_tp_by_min_alt ( const VikTrack *tr );
+gdouble *vik_track_make_gradient_map ( const VikTrack *tr, guint16 num_chunks );
 gdouble *vik_track_make_speed_map ( const VikTrack *tr, guint16 num_chunks );
+gdouble *vik_track_make_distance_map ( const VikTrack *tr, guint16 num_chunks );
+gdouble *vik_track_make_elevation_time_map ( const VikTrack *tr, guint16 num_chunks );
+gdouble *vik_track_make_speed_dist_map ( const VikTrack *tr, guint16 num_chunks );
 gboolean vik_track_get_minmax_alt ( const VikTrack *tr, gdouble *min_alt, gdouble *max_alt );
 void vik_track_marshall ( VikTrack *tr, guint8 **data, guint *len);
 VikTrack *vik_track_unmarshall (guint8 *data, guint datalen);
 
 void vik_track_apply_dem_data ( VikTrack *tr);
+/*
+ * Apply DEM data (if available) - to only the last trackpoint
+ */
+void vik_track_apply_dem_data_last_trackpoint ( VikTrack *tr );
 
 /* appends t2 to t1, leaving t2 with no trackpoints */
 void vik_track_steal_and_append_trackpoints ( VikTrack *t1, VikTrack *t2 );
 
 /* starting at the end, looks backwards for the last "double point", a duplicate trackpoint.
- * this is indicative of magic scissors continued use. If there is no double point,
- * deletes all the trackpoints. returns new end of the track (or the start if
- * there are no double points)
+ * If there is no double point, deletes all the trackpoints.
+ * Returns the new end of the track (or the start if there are no double points
  */
 VikCoord *vik_track_cut_back_to_double_point ( VikTrack *tr );