Examples with RouteLegProgress com.mapbox.services.android.navigation.v5.routeprogress.RouteLegProgress used on opensource projects

Example 1 with RouteLegProgress

use of com.mapbox.services.android.navigation.v5.routeprogress.RouteLegProgress in project mapbox-navigation-android by mapbox.

the class SnapToRoute method snapLocationBearing.

/**
 * Creates a snapped bearing for the snapped {@link Location}.
 * <p>
 * This is done by measuring 1 meter ahead of the current step distance traveled and
 * creating a {@link Point} with this distance using {@link TurfMeasurement#along(LineString, double, String)}.
 * <p>
 * If the step distance remaining is zero, the distance ahead is 1 meter into the upcoming step.
 * This way, an accurate bearing is upheld transitioning between steps.
 *
 * @param routeProgress for all current progress values
 * @return float bearing snapped to route
 */
private static float snapLocationBearing(RouteProgress routeProgress) {
    RouteLegProgress legProgress = routeProgress.currentLegProgress();
    RouteStepProgress stepProgress = legProgress.currentStepProgress();
    double distanceTraveled = stepProgress.distanceTraveled();
    double distanceRemaining = stepProgress.distanceRemaining();
    boolean distanceRemainingZero = distanceRemaining == 0;
    // Either want to measure our current step distance traveled + 1 or 1 meter into the upcoming step
    double distanceAhead = distanceRemainingZero ? 1 : distanceTraveled + 1;
    // Create the step linestring from the geometry
    LineString upcomingLineString = createUpcomingLineString(legProgress, distanceRemainingZero);
    LineString currentLineString = createCurrentLineString(legProgress);
    // Measure 1 meter ahead of the users current location, only if the distance remaining isn't zero
    Point futurePoint = createFuturePoint(distanceAhead, upcomingLineString, currentLineString);
    Point currentPoint = TurfMeasurement.along(currentLineString, distanceTraveled, TurfConstants.UNIT_METERS);
    // Get bearing and convert azimuth to degrees
    double azimuth = TurfMeasurement.bearing(currentPoint, futurePoint);
    return (float) MathUtils.wrap(azimuth, 0, 360);
}