/*
* viking -- GPS Data and Topo Analyzer, Explorer, and Manager
*
- * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
+ * Copyright (C) 2003-2007, Evan Battaglia <gtoevan@gmx.net>
+ * Copyright (C) 2007, Quy Tonthat <qtonthat@gmail.com>
+ * Copyright (C) 2008, Hein Ragas <viking@ragas.nl>
+ * Copyright (C) 2009, Tal B <tal.bav@gmail.com>
*
* Some of the code adapted from GPSBabel 1.2.7
* http://gpsbabel.sf.net/
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
-
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
#define _XOPEN_SOURCE /* glibc2 needs this */
+#include "gpx.h"
#include "viking.h"
#include <expat.h>
+#ifdef HAVE_STRING_H
#include <string.h>
+#endif
#include <glib.h>
+#ifdef HAVE_MATH_H
#include <math.h>
-
-#define GPX_TIME_FORMAT "%Y-%m-%dT%H:%M:%SZ"
+#endif
+#include <time.h>
typedef enum {
tt_unknown = 0,
tt_trk_trkseg_trkpt_fix,
tt_trk_trkseg_trkpt_sat,
+ tt_trk_trkseg_trkpt_hdop,
+ tt_trk_trkseg_trkpt_vdop,
+ tt_trk_trkseg_trkpt_pdop,
+
tt_waypoint,
tt_waypoint_coord,
tt_waypoint_name,
const char *tag_name; /* xpath-ish tag name */
} tag_mapping;
+typedef struct {
+ GpxWritingOptions *options;
+ FILE *file;
+} GpxWritingContext;
+
/*
* xpath(ish) mappings between full tag paths and internal identifers.
* These appear in the order they appear in the GPX specification.
{ tt_trk_trkseg_trkpt_fix, "/gpx/trk/trkseg/trkpt/fix" },
{ tt_trk_trkseg_trkpt_sat, "/gpx/trk/trkseg/trkpt/sat" },
+ { tt_trk_trkseg_trkpt_hdop, "/gpx/trk/trkseg/trkpt/hdop" },
+ { tt_trk_trkseg_trkpt_vdop, "/gpx/trk/trkseg/trkpt/vdop" },
+ { tt_trk_trkseg_trkpt_pdop, "/gpx/trk/trkseg/trkpt/pdop" },
{0}
};
static gboolean set_c_ll ( const char **attr )
{
if ( (c_slat = get_attr ( attr, "lat" )) && (c_slon = get_attr ( attr, "lon" )) ) {
- c_ll.lat = g_strtod(c_slat, NULL);
- c_ll.lon = g_strtod(c_slon, NULL);
+ c_ll.lat = g_ascii_strtod(c_slat, NULL);
+ c_ll.lon = g_ascii_strtod(c_slon, NULL);
return TRUE;
}
return FALSE;
case tt_wpt:
if ( set_c_ll( attr ) ) {
c_wp = vik_waypoint_new ();
- c_wp->altitude = VIK_DEFAULT_ALTITUDE;
if ( ! get_attr ( attr, "hidden" ) )
c_wp->visible = TRUE;
case tt_trk_trkseg_trkpt:
if ( set_c_ll( attr ) ) {
c_tp = vik_trackpoint_new ();
- c_tp->altitude = VIK_DEFAULT_ALTITUDE;
vik_coord_load_from_latlon ( &(c_tp->coord), vik_trw_layer_get_coord_mode ( vtl ), &c_ll );
if ( f_tr_newseg ) {
c_tp->newsegment = TRUE;
case tt_waypoint:
c_wp = vik_waypoint_new ();
- c_wp->altitude = VIK_DEFAULT_ALTITUDE;
c_wp->visible = TRUE;
break;
static void gpx_end(VikTrwLayer *vtl, const char *el)
{
- static struct tm tm;
+ static GTimeVal tp_time;
+
g_string_truncate ( xpath, xpath->len - strlen(el) - 1 );
switch ( current_tag ) {
case tt_trk:
if ( ! c_tr_name )
- c_tr_name = g_strdup_printf("VIKING_TR%d", unnamed_waypoints++);
+ c_tr_name = g_strdup_printf("VIKING_TR%d", unnamed_tracks++);
vik_trw_layer_filein_add_track ( vtl, c_tr_name, c_tr );
g_free ( c_tr_name );
c_tr = NULL;
break;
case tt_wpt_ele:
- c_wp->altitude = g_strtod ( c_cdata->str, NULL );
+ c_wp->altitude = g_ascii_strtod ( c_cdata->str, NULL );
g_string_erase ( c_cdata, 0, -1 );
break;
case tt_trk_trkseg_trkpt_ele:
- c_tp->altitude = g_strtod ( c_cdata->str, NULL );
+ c_tp->altitude = g_ascii_strtod ( c_cdata->str, NULL );
g_string_erase ( c_cdata, 0, -1 );
break;
break;
case tt_trk_trkseg_trkpt_time:
-
- if ( strptime(c_cdata->str, GPX_TIME_FORMAT, &tm) != c_cdata->str ) { /* it read at least one char */
- c_tp->timestamp = mktime(&tm);
+ if ( g_time_val_from_iso8601(c_cdata->str, &tp_time) ) {
+ c_tp->timestamp = tp_time.tv_sec;
c_tp->has_timestamp = TRUE;
}
g_string_erase ( c_cdata, 0, -1 );
break;
case tt_trk_trkseg_trkpt_course:
- c_tp->extended = TRUE;
- c_tp->course = g_strtod ( c_cdata->str, NULL );
+ c_tp->course = g_ascii_strtod ( c_cdata->str, NULL );
g_string_erase ( c_cdata, 0, -1 );
break;
case tt_trk_trkseg_trkpt_speed:
- c_tp->extended = TRUE;
- c_tp->speed = g_strtod ( c_cdata->str, NULL );
+ c_tp->speed = g_ascii_strtod ( c_cdata->str, NULL );
g_string_erase ( c_cdata, 0, -1 );
break;
case tt_trk_trkseg_trkpt_fix:
- c_tp->extended = TRUE;
if (!strcmp("2d", c_cdata->str))
c_tp->fix_mode = VIK_GPS_MODE_2D;
else if (!strcmp("3d", c_cdata->str))
break;
case tt_trk_trkseg_trkpt_sat:
- c_tp->extended = TRUE;
c_tp->nsats = atoi ( c_cdata->str );
g_string_erase ( c_cdata, 0, -1 );
break;
+ case tt_trk_trkseg_trkpt_hdop:
+ c_tp->hdop = g_strtod ( c_cdata->str, NULL );
+ g_string_erase ( c_cdata, 0, -1 );
+ break;
+
+ case tt_trk_trkseg_trkpt_vdop:
+ c_tp->vdop = g_strtod ( c_cdata->str, NULL );
+ g_string_erase ( c_cdata, 0, -1 );
+ break;
+
+ case tt_trk_trkseg_trkpt_pdop:
+ c_tp->pdop = g_strtod ( c_cdata->str, NULL );
+ g_string_erase ( c_cdata, 0, -1 );
+ break;
+
default: break;
}
case tt_trk_trkseg_trkpt_speed:
case tt_trk_trkseg_trkpt_fix:
case tt_trk_trkseg_trkpt_sat:
+ case tt_trk_trkseg_trkpt_hdop:
+ case tt_trk_trkseg_trkpt_vdop:
+ case tt_trk_trkseg_trkpt_pdop:
case tt_waypoint_name: /* .loc name is really description. */
g_string_append_len ( c_cdata, s, len );
break;
XML_Parse(parser, buf, len, done);
}
+ XML_ParserFree (parser);
g_string_free ( xpath, TRUE );
g_string_free ( c_cdata, TRUE );
}
/* export GPX */
-static void gpx_write_waypoint ( const gchar *name, VikWaypoint *wp, FILE *f )
+static void gpx_write_waypoint ( const gchar *name, VikWaypoint *wp, GpxWritingContext *context )
{
+ FILE *f = context->file;
static struct LatLon ll;
gchar *s_lat,*s_lon;
gchar *tmp;
fprintf ( f, "</wpt>\n" );
}
-static void gpx_write_trackpoint ( VikTrackpoint *tp, FILE *f )
+static void gpx_write_trackpoint ( VikTrackpoint *tp, GpxWritingContext *context )
{
+ FILE *f = context->file;
static struct LatLon ll;
- gchar *s_lat,*s_lon, *s_alt;
- static gchar time_buf[30];
+ gchar *s_lat,*s_lon, *s_alt, *s_dop;
+ gchar *time_iso8601;
vik_coord_to_latlon ( &(tp->coord), &ll );
if ( tp->newsegment )
s_lat = a_coords_dtostr( ll.lat );
s_lon = a_coords_dtostr( ll.lon );
fprintf ( f, " <trkpt lat=\"%s\" lon=\"%s\">\n", s_lat, s_lon );
- g_free ( s_lat );
- g_free ( s_lon );
+ g_free ( s_lat ); s_lat = NULL;
+ g_free ( s_lon ); s_lon = NULL;
+ s_alt = NULL;
if ( tp->altitude != VIK_DEFAULT_ALTITUDE )
{
s_alt = a_coords_dtostr ( tp->altitude );
- fprintf ( f, " <ele>%s</ele>\n", s_alt );
- g_free ( s_alt );
}
+ else if ( context->options != NULL && context->options->force_ele )
+ {
+ s_alt = a_coords_dtostr ( 0 );
+ }
+ if (s_alt != NULL)
+ fprintf ( f, " <ele>%s</ele>\n", s_alt );
+ g_free ( s_alt ); s_alt = NULL;
+
+ time_iso8601 = NULL;
if ( tp->has_timestamp ) {
- time_buf [ strftime ( time_buf, sizeof(time_buf)-1, GPX_TIME_FORMAT, localtime(&(tp->timestamp)) ) ] = '\0';
- fprintf ( f, " <time>%s</time>\n", time_buf );
+ GTimeVal timestamp;
+ timestamp.tv_sec = tp->timestamp;
+ timestamp.tv_usec = 0;
+
+ time_iso8601 = g_time_val_to_iso8601 ( ×tamp );
}
- if (tp->extended && (tp->fix_mode >= VIK_GPS_MODE_2D)) {
- if (!isnan(tp->course)) {
- gchar *s_course = a_coords_dtostr(tp->course);
- fprintf ( f, " <course>%s</course>\n", s_course );
- g_free(s_course);
- }
- if (!isnan(tp->speed)) {
- gchar *s_speed = a_coords_dtostr(tp->speed);
- fprintf ( f, " <speed>%s</speed>\n", s_speed );
- g_free(s_speed);
- }
- if (tp->fix_mode == VIK_GPS_MODE_2D)
- fprintf ( f, " <fix>2d</fix>\n");
- if (tp->fix_mode == VIK_GPS_MODE_3D)
- fprintf ( f, " <fix>3d</fix>\n");
- if (tp->nsats > 0)
- fprintf ( f, " <sat>%d</sat>\n", tp->nsats );
+ else if ( context->options != NULL && context->options->force_time )
+ {
+ GTimeVal current;
+ g_get_current_time ( ¤t );
+
+ time_iso8601 = g_time_val_to_iso8601 ( ¤t );
}
+ if ( time_iso8601 != NULL )
+ fprintf ( f, " <time>%s</time>\n", time_iso8601 );
+ g_free(time_iso8601);
+ time_iso8601 = NULL;
+
+ if (!isnan(tp->course)) {
+ gchar *s_course = a_coords_dtostr(tp->course);
+ fprintf ( f, " <course>%s</course>\n", s_course );
+ g_free(s_course);
+ }
+ if (!isnan(tp->speed)) {
+ gchar *s_speed = a_coords_dtostr(tp->speed);
+ fprintf ( f, " <speed>%s</speed>\n", s_speed );
+ g_free(s_speed);
+ }
+ if (tp->fix_mode == VIK_GPS_MODE_2D)
+ fprintf ( f, " <fix>2d</fix>\n");
+ if (tp->fix_mode == VIK_GPS_MODE_3D)
+ fprintf ( f, " <fix>3d</fix>\n");
+ if (tp->nsats > 0)
+ fprintf ( f, " <sat>%d</sat>\n", tp->nsats );
+
+ s_dop = NULL;
+ if ( tp->hdop != VIK_DEFAULT_DOP )
+ {
+ s_dop = a_coords_dtostr ( tp->hdop );
+ }
+ if (s_dop != NULL)
+ fprintf ( f, " <hdop>%s</hdop>\n", s_dop );
+ g_free ( s_dop ); s_dop = NULL;
+
+ if ( tp->vdop != VIK_DEFAULT_DOP )
+ {
+ s_dop = a_coords_dtostr ( tp->vdop );
+ }
+ if (s_dop != NULL)
+ fprintf ( f, " <vdop>%s</vdop>\n", s_dop );
+ g_free ( s_dop ); s_dop = NULL;
+
+ if ( tp->pdop != VIK_DEFAULT_DOP )
+ {
+ s_dop = a_coords_dtostr ( tp->pdop );
+ }
+ if (s_dop != NULL)
+ fprintf ( f, " <pdop>%s</pdop>\n", s_dop );
+ g_free ( s_dop ); s_dop = NULL;
+
fprintf ( f, " </trkpt>\n" );
}
-static void gpx_write_track ( const gchar *name, VikTrack *t, FILE *f )
+static void gpx_write_track ( const gchar *name, VikTrack *t, GpxWritingContext *context )
{
+ FILE *f = context->file;
gchar *tmp;
gboolean first_tp_is_newsegment = FALSE; /* must temporarily make it not so, but we want to restore state. not that it matters. */
if ( t->trackpoints && t->trackpoints->data ) {
first_tp_is_newsegment = VIK_TRACKPOINT(t->trackpoints->data)->newsegment;
VIK_TRACKPOINT(t->trackpoints->data)->newsegment = FALSE; /* so we won't write </trkseg><trkseg> already */
- g_list_foreach ( t->trackpoints, (GFunc) gpx_write_trackpoint, f );
+ g_list_foreach ( t->trackpoints, (GFunc) gpx_write_trackpoint, context );
VIK_TRACKPOINT(t->trackpoints->data)->newsegment = first_tp_is_newsegment; /* restore state */
}
fprintf(f, "</gpx>\n");
}
+
+
+typedef struct {
+ VikWaypoint *wp;
+ const gchar *name;
+} gpx_waypoint_and_name;
+
+typedef struct {
+ gpx_waypoint_and_name *wps;
+ guint i;
+ guint n_wps;
+} gpx_gather_waypoints_passalong_t;
+
+/* Type to hold name of track and timestamp of first trackpoint */
+typedef struct {
+ time_t first_timestamp;
+ const gchar *name;
+} gpx_track_and_timestamp;
+
+typedef struct {
+ gpx_track_and_timestamp *trks;
+ guint i;
+ guint n_trks;
+} gpx_gather_tracks_passalong_t;
+
+static void gpx_collect_waypoint ( const gchar *name, VikWaypoint *wp, gpx_gather_waypoints_passalong_t *passalong )
+{
+ if ( passalong->i < passalong->n_wps ) {
+ passalong->wps[passalong->i].name = name;
+ passalong->wps[passalong->i].wp = wp;
+ passalong->i++;
+ }
+}
+
+/* Function to collect a track and the first timestamp in the list */
+static void gpx_collect_track (const gchar *name, VikTrack *track, gpx_gather_tracks_passalong_t *passalong)
+{
+ if (passalong->i < passalong->n_trks)
+ {
+ passalong->trks[passalong->i].name = name;
+ if (track && track->trackpoints && track->trackpoints->data)
+ {
+ VikTrackpoint *first_point = (VikTrackpoint *)track->trackpoints->data;
+ passalong->trks[passalong->i].first_timestamp = first_point->timestamp;
+ }
+ else
+ {
+ passalong->trks[passalong->i].first_timestamp = 0;
+ }
+ passalong->i++;
+ }
+}
+
+static int gpx_waypoint_and_name_compar(const void *x, const void *y)
+{
+ gpx_waypoint_and_name *a = (gpx_waypoint_and_name *)x;
+ gpx_waypoint_and_name *b = (gpx_waypoint_and_name *)y;
+ return strcmp(a->name,b->name);
+}
+
+/* Function to compare two tracks by their first timestamp */
+static int gpx_track_and_timestamp_compar(const void *x, const void *y)
+{
+ gpx_track_and_timestamp *a = (gpx_track_and_timestamp *)x;
+ gpx_track_and_timestamp *b = (gpx_track_and_timestamp *)y;
+ if (a->first_timestamp < b->first_timestamp)
+ {
+ return -1;
+ }
+ if (a->first_timestamp > b->first_timestamp)
+ {
+ return 1;
+ }
+ return 0;
+}
+
void a_gpx_write_file( VikTrwLayer *vtl, FILE *f )
{
+ a_gpx_write_file_options(NULL, vtl, f);
+}
+
+void a_gpx_write_file_options ( GpxWritingOptions *options, VikTrwLayer *vtl, FILE *f )
+{
+ GpxWritingContext context = { options, f };
+ int i;
+
gpx_write_header ( f );
- g_hash_table_foreach ( vik_trw_layer_get_waypoints ( vtl ), (GHFunc) gpx_write_waypoint, f );
- g_hash_table_foreach ( vik_trw_layer_get_tracks ( vtl ), (GHFunc) gpx_write_track, f );
+
+
+ gpx_gather_waypoints_passalong_t passalong;
+ passalong.n_wps = g_hash_table_size ( vik_trw_layer_get_waypoints ( vtl ) );
+ passalong.i = 0;
+ passalong.wps = g_new(gpx_waypoint_and_name,passalong.n_wps);
+ g_hash_table_foreach ( vik_trw_layer_get_waypoints ( vtl ), (GHFunc) gpx_collect_waypoint, &passalong );
+ /* gather waypoints in a list, then sort */
+ qsort(passalong.wps, passalong.n_wps, sizeof(gpx_waypoint_and_name), gpx_waypoint_and_name_compar);
+ for ( i = 0; i < passalong.n_wps; i++ )
+ gpx_write_waypoint ( passalong.wps[i].name, passalong.wps[i].wp, &context);
+ g_free ( passalong.wps );
+
+ gpx_gather_tracks_passalong_t passalong_tracks;
+ passalong_tracks.n_trks = g_hash_table_size ( vik_trw_layer_get_tracks (vtl) );
+ passalong_tracks.i = 0;
+ passalong_tracks.trks = g_new(gpx_track_and_timestamp,passalong_tracks.n_trks);
+ g_hash_table_foreach (vik_trw_layer_get_tracks(vtl), (GHFunc) gpx_collect_track, &passalong_tracks);
+ /* Sort by timestamp */
+ qsort(passalong_tracks.trks, passalong_tracks.n_trks, sizeof(gpx_track_and_timestamp), gpx_track_and_timestamp_compar);
+ for (i=0;i<passalong_tracks.n_trks; i++)
+ {
+ gpx_write_track(passalong_tracks.trks[i].name, (VikTrack *)g_hash_table_lookup(vik_trw_layer_get_tracks(vtl), passalong_tracks.trks[i].name), &context);
+ }
+ g_free ( passalong_tracks.trks );
gpx_write_footer ( f );
}
void a_gpx_write_track_file ( const gchar *name, VikTrack *t, FILE *f )
{
+ a_gpx_write_track_file_options ( NULL, name, t, f );
+}
+
+void a_gpx_write_track_file_options ( GpxWritingOptions *options, const gchar *name, VikTrack *t, FILE *f )
+{
+ GpxWritingContext context = {options, f};
gpx_write_header ( f );
- gpx_write_track ( name, t, f );
+ gpx_write_track ( name, t, &context );
gpx_write_footer ( f );
}
projects / andy / viking.git / blobdiff