thresholding method

DoubleLinkedQueueEntry<ILatLng> thresholding(
  1. DoubleLinkedQueueEntry<ILatLng> entry
)

Implementation

DoubleLinkedQueueEntry<ILatLng> thresholding(
    DoubleLinkedQueueEntry<ILatLng> entry) {
  var current = entry.element;

  var nextEntry = entry.nextEntry();
  var upcomingEntry = nextEntry?.nextEntry();

  var next = nextEntry?.element ?? ILatLng.empty();
  var upcoming = upcomingEntry?.element ?? ILatLng.empty();

  if (upcoming.isNotEmpty) {
    var currentBearing = SphericalUtil.computeHeading(current, next);

    var upComingBearing = SphericalUtil.computeHeading(next, upcoming);

    var delta = upComingBearing - currentBearing;

    if (delta.abs() < threshold) {
      nextEntry!.remove();
    }
  }

  return entry;
}