Alternative: Use only one line per TRKPT/WPT

app/src/main/java/net/osmtracker/OSMTracker.java

@@ -29,6 +29,7 @@ public static final class Preferences {
 		public final static String KEY_OUTPUT_GPX_HDOP_APPROXIMATION = "gpx.hdop.approximation";
 		public final static String KEY_OUTPUT_DIR_PER_TRACK = "gpx.directory_per_track";
 		public final static String KEY_OUTPUT_COMPASS = "gpx.compass_heading";
+		public final static String KEY_GPX_FORMAT_SHORT = "gpx.gpx_format_short";
 
 		public final static String KEY_UI_PICTURE_SOURCE = "ui.picture.source";
 		public final static String KEY_UI_BUTTONS_LAYOUT = "ui.buttons.layout";
@@ -75,6 +76,7 @@ public static final class Preferences {
 
 		public final static boolean VAL_OUTPUT_GPX_HDOP_APPROXIMATION = false;
 		public final static boolean VAL_OUTPUT_GPX_OUTPUT_DIR_PER_TRACK = true;
+		public final static boolean VAL_GPX_FORMAT_SHORT = false;
 
 		public final static String VAL_UI_PICTURE_SOURCE_CAMERA = "camera";
 		public final static String VAL_UI_PICTURE_SOURCE_GALLERY = "gallery";

app/src/main/java/net/osmtracker/gpx/ExportToStorageTask.java

@@ -39,6 +39,9 @@ protected File getExportDirectory(Date startDate) throws ExportTrackException {
 
 		boolean directoryPerTrack = prefs.getBoolean(OSMTracker.Preferences.KEY_OUTPUT_DIR_PER_TRACK, 
 				OSMTracker.Preferences.VAL_OUTPUT_GPX_OUTPUT_DIR_PER_TRACK);
+
+		boolean gpxFormatShort = prefs.getBoolean(OSMTracker.Preferences.KEY_GPX_FORMAT_SHORT,
+				OSMTracker.Preferences.VAL_GPX_FORMAT_SHORT);
 
 		// Create the path to the directory to which we will be writing
 		// Trim the directory name, as additional spaces at the end will 

app/src/main/java/net/osmtracker/gpx/ExportTrackTask.java

@@ -290,6 +290,9 @@ private void writeGpxFile(String trackName, String tags, String track_descriptio
 		String compassOutput = PreferenceManager.getDefaultSharedPreferences(context).getString(
 				OSMTracker.Preferences.KEY_OUTPUT_COMPASS,
 				OSMTracker.Preferences.VAL_OUTPUT_COMPASS);
+		boolean gpxFormatShort = PreferenceManager.getDefaultSharedPreferences(context).getBoolean(
+				OSMTracker.Preferences.KEY_GPX_FORMAT_SHORT,
+				OSMTracker.Preferences.VAL_GPX_FORMAT_SHORT);
 
 		Log.v(TAG, "write preferences: compass:" + compassOutput);
 
@@ -315,8 +318,13 @@ private void writeGpxFile(String trackName, String tags, String track_descriptio
 
 			writer.write("\t</metadata>\n");
 
-			writeWayPoints(writer, cWayPoints, accuracyOutput, fillHDOP, compassOutput);
-			writeTrackPoints(context.getResources().getString(R.string.gpx_track_name), writer, cTrackPoints, fillHDOP, compassOutput);
+			if (gpxFormatShort) {
+				writeWayPoints_short(writer, cWayPoints, accuracyOutput, fillHDOP, compassOutput);
+				writeTrackPoints_short(context.getResources().getString(R.string.gpx_track_name), writer, cTrackPoints, fillHDOP, compassOutput);
+			} else {
+				writeWayPoints_long(writer, cWayPoints, accuracyOutput, fillHDOP, compassOutput);
+				writeTrackPoints_long(context.getResources().getString(R.string.gpx_track_name), writer, cTrackPoints, fillHDOP, compassOutput);
+			}
 			writer.write("</gpx>");
 
 		} finally {
@@ -327,15 +335,15 @@ private void writeGpxFile(String trackName, String tags, String track_descriptio
 	}
 
 	/**
-	 * Iterates on track points and write them.
+	 * Iterates on track points and write them. Long version, multiple lines per point.
 	 * @param trackName Name of the track (metadata).
 	 * @param fw Writer to the target file.
 	 * @param c Cursor to track points.
 	 * @param fillHDOP Indicates whether fill <hdop> tag with approximation from location accuracy.
 	 * @param compass Indicates if and how to write compass heading to the GPX ('none', 'comment', 'extension')
 	 * @throws IOException
 	 */
-	private void writeTrackPoints(String trackName, Writer fw, Cursor c, boolean fillHDOP, String compass) throws IOException {
+	private void writeTrackPoints_long(String trackName, Writer fw, Cursor c, boolean fillHDOP, String compass) throws IOException {
 		// Update dialog every 1%
 		int dialogUpdateThreshold = c.getCount() / 100;
 		if (dialogUpdateThreshold == 0) {
@@ -376,6 +384,7 @@ private void writeTrackPoints(String trackName, Writer fw, Cursor c, boolean fil
 			}
 
 			String buff = "";
+			buff += "\t\t\t\t\t<accuracy>" + String.valueOf(c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_ACCURACY))) + "</accuracy>\n";
 			if(! c.isNull(c.getColumnIndex(TrackContentProvider.Schema.COL_SPEED))) {
 				buff += "\t\t\t\t\t" + "<speed>" + c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_SPEED)) + "</speed>" + "\n";
 			}
@@ -402,15 +411,15 @@ private void writeTrackPoints(String trackName, Writer fw, Cursor c, boolean fil
 	}
 
 	/**
-	 * Iterates on way points and write them.
+	 * Iterates on way points and write them. Long version, multiple lines per point.
 	 * @param fw Writer to the target file.
 	 * @param c Cursor to way points.
 	 * @param accuracyInfo Constant describing how to include (or not) accuracy info for way points.
 	 * @param fillHDOP Indicates whether fill <hdop> tag with approximation from location accuracy.
 	 * @param compass Indicates if and how to write compass heading to the GPX ('none', 'comment', 'extension')
 	 * @throws IOException
 	 */
-	private void writeWayPoints(Writer fw, Cursor c, String accuracyInfo, boolean fillHDOP, String compass) throws IOException {
+	private void writeWayPoints_long(Writer fw, Cursor c, String accuracyInfo, boolean fillHDOP, String compass) throws IOException {
 
 		// Update dialog every 1%
 		int dialogUpdateThreshold = c.getCount() / 100;
@@ -504,6 +513,191 @@ private void writeWayPoints(Writer fw, Cursor c, String accuracyInfo, boolean fi
 
 			fw.write(out.toString());
 
+			if (i % dialogUpdateThreshold == 0) {
+				publishProgress((long) dialogUpdateThreshold);
+			}
+		}
+	}	
+
+	/**
+	 * Iterates on track points and write them. Short version, one line per point.
+	 * @param trackName Name of the track (metadata).
+	 * @param fw Writer to the target file.
+	 * @param c Cursor to track points.
+	 * @param fillHDOP Indicates whether fill <hdop> tag with approximation from location accuracy.
+	 * @param compass Indicates if and how to write compass heading to the GPX ('none', 'comment', 'extension')
+	 * @throws IOException
+	 */
+	private void writeTrackPoints_short(String trackName, Writer fw, Cursor c, boolean fillHDOP, String compass) throws IOException {
+		// Update dialog every 1%
+		int dialogUpdateThreshold = c.getCount() / 100;
+		if (dialogUpdateThreshold == 0) {
+			dialogUpdateThreshold++;
+		}
+
+		fw.write("<trk>" + "\n");
+		fw.write("<name>" + CDATA_START + trackName + CDATA_END + "</name>" + "\n");
+		if (fillHDOP) {
+			fw.write("<cmt>"
+					+ CDATA_START
+					+ context.getResources().getString(R.string.gpx_hdop_approximation_cmt)
+					+ CDATA_END
+					+ "</cmt>" + "\n");
+		}
+		fw.write("<trkseg>" + "\n");
+
+		int i=0;
+		for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext(),i++) {
+			StringBuffer out = new StringBuffer();
+			out.append("<trkpt lat=\""
+					+ c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_LATITUDE)) + "\" "
+					+ "lon=\"" + c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_LONGITUDE)) + "\">");
+			if (! c.isNull(c.getColumnIndex(TrackContentProvider.Schema.COL_ELEVATION))) {
+				out.append("<ele>" + c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_ELEVATION)) + "</ele>");
+			}
+			out.append("<time>" + pointDateFormatter.format(new Date(c.getLong(c.getColumnIndex(TrackContentProvider.Schema.COL_TIMESTAMP)))) + "</time>");
+
+			if(fillHDOP && ! c.isNull(c.getColumnIndex(TrackContentProvider.Schema.COL_ACCURACY))) {
+				out.append("<hdop>" + (c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_ACCURACY)) / OSMTracker.HDOP_APPROXIMATION_FACTOR) + "</hdop>");
+			}
+			if(OSMTracker.Preferences.VAL_OUTPUT_COMPASS_COMMENT.equals(compass) && !c.isNull(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS))) {
+				out.append("<cmt>"+CDATA_START+"compass: " +
+						c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS))+
+						" compAccuracy: " +
+						c.getLong(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS_ACCURACY))+
+						CDATA_END+"</cmt>");
+			}
+
+			String buff = "";
+			buff += "<accuracy>" + String.valueOf(c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_ACCURACY))) + "</accuracy>";
+			if(! c.isNull(c.getColumnIndex(TrackContentProvider.Schema.COL_SPEED))) {
+				buff += "<speed>" + c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_SPEED)) + "</speed>";
+			}
+			if(OSMTracker.Preferences.VAL_OUTPUT_COMPASS_EXTENSION.equals(compass) && !c.isNull(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS))) {
+				buff += "<compass>" + c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS)) + "</compass>";
+				buff += "<compass_accuracy>" + c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS_ACCURACY)) + "</compass_accuracy>";
+			}
+			if(! buff.equals("")) {
+				out.append("<extensions>");
+				out.append(buff);
+				out.append("</extensions>");
+			}
+
+			out.append("</trkpt>" + "\n");
+			fw.write(out.toString());
+
+			if (i % dialogUpdateThreshold == 0) {
+				publishProgress((long) dialogUpdateThreshold);
+			}
+		}
+
+		fw.write("</trkseg>" + "\n");
+		fw.write("</trk>" + "\n");
+	}
+
+	/**
+	 * Iterates on way points and write them. Short version, one line per point.
+	 * @param fw Writer to the target file.
+	 * @param c Cursor to way points.
+	 * @param accuracyInfo Constant describing how to include (or not) accuracy info for way points.
+	 * @param fillHDOP Indicates whether fill <hdop> tag with approximation from location accuracy.
+	 * @param compass Indicates if and how to write compass heading to the GPX ('none', 'comment', 'extension')
+	 * @throws IOException
+	 */
+	private void writeWayPoints_short(Writer fw, Cursor c, String accuracyInfo, boolean fillHDOP, String compass) throws IOException {
+
+		// Update dialog every 1%
+		int dialogUpdateThreshold = c.getCount() / 100;
+		if (dialogUpdateThreshold == 0) {
+			dialogUpdateThreshold++;
+		}
+
+		// Label for meter unit
+		String meterUnit = context.getResources().getString(R.string.various_unit_meters);
+		// Word "accuracy"
+		String accuracy = context.getResources().getString(R.string.various_accuracy);
+
+		int i=0;
+		for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext(), i++) {
+			StringBuffer out = new StringBuffer();
+			out.append("<wpt lat=\""
+					+ c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_LATITUDE)) + "\" "
+					+ "lon=\"" + c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_LONGITUDE)) + "\">");
+			if (! c.isNull(c.getColumnIndex(TrackContentProvider.Schema.COL_ELEVATION))) {
+				out.append("<ele>" + c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_ELEVATION)) + "</ele>");
+			}
+			out.append("<time>" + pointDateFormatter.format(new Date(c.getLong(c.getColumnIndex(TrackContentProvider.Schema.COL_TIMESTAMP)))) + "</time>");
+
+			String name = c.getString(c.getColumnIndex(TrackContentProvider.Schema.COL_NAME));
+
+			if (! OSMTracker.Preferences.VAL_OUTPUT_ACCURACY_NONE.equals(accuracyInfo) && ! c.isNull(c.getColumnIndex(TrackContentProvider.Schema.COL_ACCURACY))) {
+				// Outputs accuracy info for way point
+				if (OSMTracker.Preferences.VAL_OUTPUT_ACCURACY_WPT_NAME.equals(accuracyInfo)) {
+					// Output accuracy with name
+					out.append("<name>"
+							+ CDATA_START
+							+ name
+							+ " (" + c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_ACCURACY)) + meterUnit + ")"
+							+ CDATA_END
+							+ "</name>");
+					if (OSMTracker.Preferences.VAL_OUTPUT_COMPASS_COMMENT.equals(compass) &&
+							! c.isNull(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS))) {
+						out.append("<cmt>" + CDATA_START + "compass: " + c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS)) +
+								" compass accuracy: " + c.getInt(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS_ACCURACY)) + CDATA_END + "</cmt>");
+					}
+				} else if (OSMTracker.Preferences.VAL_OUTPUT_ACCURACY_WPT_CMT.equals(accuracyInfo)) {
+					// Output accuracy in separate tag
+					out.append("<name>" + CDATA_START + name + CDATA_END + "</name>");
+					if (OSMTracker.Preferences.VAL_OUTPUT_COMPASS_COMMENT.equals(compass) &&
+							! c.isNull(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS))) {
+						out.append("<cmt>" + CDATA_START + accuracy + ": " + c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_ACCURACY)) + meterUnit +
+								" compass heading: " + c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS)) +
+								"deg compass accuracy: " + c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS_ACCURACY)) +CDATA_END + "</cmt>");
+					} else {
+						out.append("<cmt>" + CDATA_START + accuracy + ": " + c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_ACCURACY)) + meterUnit + CDATA_END + "</cmt>");
+					}
+				} else {
+					// Unknown value for accuracy info, shouldn't occur but who knows ?
+					// See issue #68. Output at least the name just in case.
+					out.append("<name>" + CDATA_START + name + CDATA_END + "</name>");
+				}
+			} else {
+				// No accuracy info requested, or available
+				out.append("<name>" + CDATA_START + name + CDATA_END + "</name>");
+				if (OSMTracker.Preferences.VAL_OUTPUT_COMPASS_COMMENT.equals(compass) &&
+						! c.isNull(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS))) {
+					out.append("<cmt>" + CDATA_START + "compass: " + c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS)) +
+							" compass accuracy: " + c.getInt(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS_ACCURACY)) + CDATA_END + "</cmt>");
+				}
+			}
+
+			String link = c.getString(c.getColumnIndex(TrackContentProvider.Schema.COL_LINK));
+			if (link != null) {
+				out.append("<link href=\"" + URLEncoder.encode(link) + "\">");
+				out.append("<text>" + link +"</text>");
+				out.append("</link>");
+			}
+
+			if (! c.isNull(c.getColumnIndex(TrackContentProvider.Schema.COL_NBSATELLITES))) {
+				out.append("<sat>" + c.getInt(c.getColumnIndex(TrackContentProvider.Schema.COL_NBSATELLITES)) + "</sat>");
+			}
+
+			if(fillHDOP && ! c.isNull(c.getColumnIndex(TrackContentProvider.Schema.COL_ACCURACY))) {
+				out.append("<hdop>" + (c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_ACCURACY)) / OSMTracker.HDOP_APPROXIMATION_FACTOR) + "</hdop>");
+			}
+
+			if (OSMTracker.Preferences.VAL_OUTPUT_COMPASS_EXTENSION.equals(compass) &&
+					! c.isNull(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS))) {
+				out.append("<extensions>");
+				out.append("<compass>" + c.getDouble(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS)) + "</compass>");
+				out.append("<compass_accuracy>" + c.getInt(c.getColumnIndex(TrackContentProvider.Schema.COL_COMPASS_ACCURACY)) + "</compass_accuracy>");
+				out.append("</extensions>");
+			}
+
+			out.append("</wpt>" + "\n");
+
+			fw.write(out.toString());
+
 			if (i % dialogUpdateThreshold == 0) {
 				publishProgress((long) dialogUpdateThreshold);
 			}

app/src/main/res/values/strings-preferences.xml

@@ -77,6 +77,8 @@
 	<string name="prefs_storage_dir_hint">Effective for the next track (not the current one)</string>
 	<string name="prefs_output_one_dir_per_track">One directory per track</string>
 	<string name="prefs_output_one_dir_per_track_summary">Save each track and associated files to its own directory</string>
+	<string name="prefs_gpx_format_type">Short format</string>
+	<string name="prefs_gpx_format_type_summary">One line per track- or waypoint</string>
 	<string name="prefs_output_filename">Filename for named tracks</string>
 	<string name="prefs_output_filename_summary">Pattern for filename if the track has a name</string>
 	<string-array name="prefs_output_filename_keys">