public static void addOpenRoute(Track route) {
if (OpenRoute == null) {
route.setColor(new Color(0.85f, 0.1f, 0.2f, 1f));
Routes.add(0, route);
OpenRoute = route;
} else {
// erst die alte route löschen
Routes.remove(OpenRoute);
route.setColor(OpenRoute.getColor());
Routes.add(0, route);
OpenRoute = route;
}
RoutesChanged();
}
// Read track from gpx file
// attention it is possible that a gpx file contains more than 1 <trk> segments
public static Track MultiLoadRoute(String file, Color color) {
float[] dist = new float[4];
double Distance = 0;
double AltitudeDifference = 0;
double DeltaAltitude = 0;
CoordinateGPS FromPosition = new CoordinateGPS(0, 0);
BufferedReader reader;
try {
InputStreamReader isr = new InputStreamReader(new FileInputStream(file), "UTF8");
reader = new BufferedReader(isr);
Track route = new Track(null, color);
String line = null;
String tmpLine = null;
String GPXName = null;
boolean isSeg = false;
boolean isTrk = false;
boolean isRte = false;
boolean IStrkptORrtept = false;
boolean ReadName = false;
int AnzTracks = 0;
CoordinateGPS lastAcceptedCoordinate = null;
double lastAcceptedDirection = -1;
Date lastAcceptedTime = null;
StringBuilder sb = new StringBuilder();
String rline = null;
while ((rline = reader.readLine()) != null) {
for (int i = 0; i < rline.length(); i++) {
char nextChar = rline.charAt(i);
sb.append(nextChar);
if (nextChar == '>') {
line = sb.toString().trim().toLowerCase();
tmpLine = sb.toString();
sb = new StringBuilder();
if (!isTrk) // Begin of the Track detected?
{
if (line.indexOf("<trk>") > -1) {
isTrk = true;
continue;
}
}
if (!isSeg) // Begin of the Track Segment detected?
{
if (line.indexOf("<trkseg>") > -1) {
isSeg = true;
route = new Track(null, color);
route.FileName = file;
Distance = 0;
AltitudeDifference = 0;
AnzTracks++;
if (GPXName == null) route.Name = FileIO.GetFileName(file);
else {
if (AnzTracks <= 1) route.Name = GPXName;
else route.Name = GPXName + AnzTracks;
}
continue;
}
}
if (!isRte) // Begin of the Route detected?
{
if (line.indexOf("<rte>") > -1) {
isRte = true;
route = new Track(null, color);
route.FileName = file;
Distance = 0;
AltitudeDifference = 0;
AnzTracks++;
if (GPXName != null) route.Name = FileIO.GetFileName(file);
else {
if (AnzTracks <= 1) route.Name = GPXName;
else route.Name = GPXName + AnzTracks;
}
continue;
}
}
if ((line.indexOf("<name>") > -1) & !IStrkptORrtept) // found <name>?
{
ReadName = true;
continue;
}
if (ReadName & !IStrkptORrtept) {
int cdata_start = 0;
int name_start = 0;
int name_end;
name_end = line.indexOf("</name>");
// Name contains cdata?
cdata_start = line.indexOf("[cdata[");
if (cdata_start > -1) {
name_start = cdata_start + 7;
name_end = line.indexOf("]");
}
if (name_end > name_start) {
// tmpLine, damit Groß-/Kleinschreibung beachtet wird
if (isSeg | isRte) route.Name = tmpLine.substring(name_start, name_end);
else GPXName = tmpLine.substring(name_start, name_end);
}
ReadName = false;
continue;
}
if (line.indexOf("</trkseg>") > -1) // End of the Track Segment detected?
{
if (route.Points.size() < 2) route.Name = "no Route segment found";
route.ShowRoute = true;
route.TrackLength = Distance;
route.AltitudeDifference = AltitudeDifference;
add(route);
isSeg = false;
break;
}
if (line.indexOf("</rte>") > -1) // End of the Route detected?
{
if (route.Points.size() < 2) route.Name = "no Route segment found";
route.ShowRoute = true;
route.TrackLength = Distance;
route.AltitudeDifference = AltitudeDifference;
add(route);
isRte = false;
break;
}
if ((line.indexOf("<trkpt") > -1) | (line.indexOf("<rtept") > -1)) {
IStrkptORrtept = true;
// Trackpoint lesen
int lonIdx = line.indexOf("lon=\"") + 5;
int latIdx = line.indexOf("lat=\"") + 5;
int lonEndIdx = line.indexOf("\"", lonIdx);
int latEndIdx = line.indexOf("\"", latIdx);
String latStr = line.substring(latIdx, latEndIdx);
String lonStr = line.substring(lonIdx, lonEndIdx);
double lat = Double.valueOf(latStr);
double lon = Double.valueOf(lonStr);
lastAcceptedCoordinate = new CoordinateGPS(lat, lon);
}
if (line.indexOf("</time>") > -1) {
// Time lesen
int timIdx = line.indexOf("<time>") + 6;
if (timIdx == 5) timIdx = 0;
int timEndIdx = line.indexOf("</time>", timIdx);
String timStr = line.substring(timIdx, timEndIdx);
lastAcceptedTime = parseDate(timStr);
}
if (line.indexOf("</course>") > -1) {
// Course lesen
int couIdx = line.indexOf("<course>") + 8;
if (couIdx == 7) couIdx = 0;
int couEndIdx = line.indexOf("</course>", couIdx);
String couStr = line.substring(couIdx, couEndIdx);
lastAcceptedDirection = Double.valueOf(couStr);
}
if ((line.indexOf("</ele>") > -1) & IStrkptORrtept) {
// Elevation lesen
int couIdx = line.indexOf("<ele>") + 5;
if (couIdx == 4) couIdx = 0;
int couEndIdx = line.indexOf("</ele>", couIdx);
String couStr = line.substring(couIdx, couEndIdx);
lastAcceptedCoordinate.setElevation(Double.valueOf(couStr));
}
if (line.indexOf("</gpxx:colorrgb>") > -1) {
// Color lesen
int couIdx = line.indexOf("<gpxx:colorrgb>") + 15;
if (couIdx == 14) couIdx = 0;
int couEndIdx = line.indexOf("</gpxx:colorrgb>", couIdx);
String couStr = line.substring(couIdx, couEndIdx);
color = new HSV_Color(couStr);
route.setColor(color);
}
if ((line.indexOf("</trkpt>") > -1)
| (line.indexOf("</rtept>") > -1)
| ((line.indexOf("/>") > -1) & IStrkptORrtept)) {
// trkpt abgeschlossen, jetzt kann der Trackpunkt erzeugt werden
IStrkptORrtept = false;
route.Points.add(
new TrackPoint(
lastAcceptedCoordinate.getLongitude(),
lastAcceptedCoordinate.getLatitude(),
lastAcceptedCoordinate.getElevation(),
lastAcceptedDirection,
lastAcceptedTime));
// Calculate the length of a Track
if (!FromPosition.isValid()) {
FromPosition = new CoordinateGPS(lastAcceptedCoordinate);
FromPosition.setElevation(lastAcceptedCoordinate.getElevation());
FromPosition.setValid(true);
} else {
MathUtils.computeDistanceAndBearing(
CalculationType.ACCURATE,
FromPosition.getLatitude(),
FromPosition.getLongitude(),
lastAcceptedCoordinate.getLatitude(),
lastAcceptedCoordinate.getLongitude(),
dist);
Distance += dist[0];
DeltaAltitude =
Math.abs(FromPosition.getElevation() - lastAcceptedCoordinate.getElevation());
FromPosition = new CoordinateGPS(lastAcceptedCoordinate);
if (DeltaAltitude >= 25.0) // nur aufaddieren wenn Höhenunterschied größer 10 Meter
{
FromPosition.setElevation(lastAcceptedCoordinate.getElevation());
AltitudeDifference = AltitudeDifference + DeltaAltitude;
}
}
}
}
}
}
reader.close();
return route;
} catch (FileNotFoundException e) {
e.printStackTrace();
return null;
} catch (IOException e) {
e.printStackTrace();
return null;
}
}