示例#1
0
 public int[] getPositionsWithinDistanceToPredecessor(double distance) {
   List<Integer> result = new ArrayList<>();
   List<P> positions = getPositions();
   if (positions.size() <= 2) return new int[0];
   P previous = positions.get(0);
   for (int i = 1; i < positions.size() - 1; i++) {
     P next = positions.get(i);
     if (!next.hasCoordinates() || next.calculateDistance(previous) <= distance) result.add(i);
     else previous = next;
   }
   return toArray(result);
 }
示例#2
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  public void ensureIncreasingTime() {
    if (getPositionCount() < 2) return;

    long completeTime = getTime(); // ms
    double completeDistance = getDistance(); // m
    double averageSpeed = completeTime > 0 ? completeDistance / completeTime * 1000 : 1.0; // m/s

    List<P> positions = getPositions();
    P first = positions.get(0);
    if (!first.hasTime()) first.setTime(fromCalendar(Calendar.getInstance(UTC)));

    P previous = first;
    for (int i = 1; i < positions.size(); i++) {
      P next = positions.get(i);
      CompactCalendar time = next.getTime();
      if (time == null || time.equals(previous.getTime())) {
        Double distance = next.calculateDistance(previous);
        Long millis = distance != null ? (long) (distance / averageSpeed * 1000) : null;
        if (millis == null || millis < 1000) millis = 1000L;
        next.setTime(
            fromMillisAndTimeZone(
                previous.getTime().getTimeInMillis() + millis, previous.getTime().getTimeZoneId()));
      }
      previous = next;
    }
  }
示例#3
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 public void sort(Comparator<P> comparator) {
   List<P> positions = getPositions();
   @SuppressWarnings({"SuspiciousToArrayCall", "unchecked"})
   P[] sorted = (P[]) positions.toArray(new BaseNavigationPosition[positions.size()]);
   Arrays.sort(sorted, comparator);
   //noinspection unchecked
   order(asList(sorted));
 }
示例#4
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 public int[] getContainedPositions(BoundingBox boundingBox) {
   List<Integer> result = new ArrayList<>();
   List<P> positions = getPositions();
   for (int i = 0; i < positions.size(); i++) {
     P position = positions.get(i);
     if (position.hasCoordinates() && boundingBox.contains(position)) result.add(i);
   }
   return toArray(result);
 }
示例#5
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 public double getElevationDelta(int index) {
   List<P> positions = getPositions();
   NavigationPosition previous = index > 0 ? positions.get(index - 1) : null;
   NavigationPosition current = index < positions.size() ? positions.get(index) : null;
   if (previous != null && current != null) {
     Double elevation = previous.calculateElevation(current);
     if (elevation != null) return elevation;
   }
   return 0;
 }
示例#6
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 /**
  * Removes duplicate adjacent {@link #getPositions() positions} from this route, leaving only
  * distinct neighbours
  */
 public void removeDuplicates() {
   List<P> positions = getPositions();
   P previous = null;
   int index = 0;
   while (index < positions.size()) {
     P next = positions.get(index);
     if (previous != null && (!next.hasCoordinates() || next.calculateDistance(previous) <= 0.0)) {
       positions.remove(index);
     } else index++;
     previous = next;
   }
 }
示例#7
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  public int getClosestPosition(double longitude, double latitude, double threshold) {
    int closestIndex = -1;
    double closestDistance = MAX_VALUE;

    List<P> positions = getPositions();
    for (int i = 0; i < positions.size(); ++i) {
      P point = positions.get(i);
      Double distance = point.calculateDistance(longitude, latitude);
      if (distance != null && distance < closestDistance && distance < threshold) {
        closestDistance = distance;
        closestIndex = i;
      }
    }
    return closestIndex;
  }
示例#8
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 public double[] getDistancesFromStart(int startIndex, int endIndex) {
   double[] result = new double[endIndex - startIndex + 1];
   List<P> positions = getPositions();
   int index = 0;
   double distance = 0.0;
   NavigationPosition previous = positions.size() > 0 ? positions.get(0) : null;
   while (index <= endIndex) {
     NavigationPosition next = positions.get(index);
     if (previous != null) {
       Double delta = previous.calculateDistance(next);
       if (delta != null) distance += delta;
       if (index >= startIndex) result[index - startIndex] = distance;
     }
     index++;
     previous = next;
   }
   return result;
 }
示例#9
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 public void order(List<P> positions) {
   List<P> existing = getPositions();
   for (int i = 0; i < positions.size(); i++) {
     existing.set(i, positions.get(i));
   }
 }
示例#10
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 public P getSuccessor(P position) {
   List<P> positions = getPositions();
   int index = positions.indexOf(position);
   return index != -1 && index < positions.size() - 1 ? positions.get(index + 1) : null;
 }