public void Split()
{
firstSubSegment = new ReduceSegment(Points.Take(maxDistanceIndex + 1).ToArray());
secondSubSegment = new ReduceSegment(Points.Skip(maxDistanceIndex).ToArray());
Splitted = true;
}
private List <TrackPoint> GetPoints(ReduceSegment segment)
{
var points = new List <TrackPoint>();
if (!segment.Splitted)
{
return(points);
}
points.AddRange(GetPoints(segment.firstSubSegment));
points.Add(segment.maxDistancePoint);
points.AddRange(GetPoints(segment.secondSubSegment));
return(points);
}
private ReduceSegment FindSegmentWithMaxDistance(ReduceSegment segment)
{
if (!segment.Splitted)
{
return(segment);
}
var firstSegment = FindSegmentWithMaxDistance(segment.firstSubSegment);
var secondSegment = FindSegmentWithMaxDistance(segment.secondSubSegment);
if (firstSegment.maxDistance >= secondSegment.maxDistance)
{
return(firstSegment);
}
return(secondSegment);
}
public TrackPoint[] Process(TrackPoint[] points)
{
List <TrackPoint> result = new List <TrackPoint>();
if (points.Length <= MaxNrOfPoints)
{
return(points);
}
var rootSegment = new ReduceSegment(points);
for (var i = 0; i < MaxNrOfPoints; i++)
{
var segment = FindSegmentWithMaxDistance(rootSegment);
segment.Split();
}
result.Add(rootSegment.Points.First());
result.AddRange(GetPoints(rootSegment));
result.Add(rootSegment.Points.Last());
return(result.ToArray());
}