static void Main(string[] args)
{
List <Point> points = Data.Array.Select(d => new Point(d[0], d[1])).ToList();
points.Add(points[0]);
Console.WriteLine(points.Count().ToString("#,0") + " points");
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
List <Point> reducedPoints = RamerDouglasPeucker.Reduce(points, 0.5f);
stopwatch.Stop();
Console.WriteLine("To " + reducedPoints.Count().ToString("#,0") + " points in " + stopwatch.ElapsedMilliseconds + "ms");
Console.WriteLine();
stopwatch = new Stopwatch();
stopwatch.Start();
List <Point> reducedPoints2 = RamerDouglasPeucker.Reduce(points);
stopwatch.Stop();
Console.WriteLine("To " + reducedPoints2.Count().ToString("#,0") + " points in " + stopwatch.ElapsedMilliseconds + "ms");
Console.ReadKey();
}
static void Main(string[] args)
{
Point[] points = File.ReadAllLines(@"D:\Trading\Quantitative\Research\Data\large_random.csv")
.Select(line =>
new Point(DateTime.Parse(line.Split(',')[0].Trim()).ToOADate(),
double.Parse(line.Split(',')[1].Trim()))).ToArray();
points = points.Concat(points).ToArray();
points = points.Concat(points).ToArray();
points = points.Concat(points).ToArray();
points = points.Concat(points).ToArray();
points = points.Concat(points).ToArray();
Console.WriteLine(points.Count().ToString("#,0"));
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
var reducePoints = RamerDouglasPeucker.Reduce(points, 0.5);
stopwatch.Stop();
Console.WriteLine(stopwatch.ElapsedMilliseconds / 1_000.0 + "s");
Console.WriteLine(reducePoints.Count().ToString("#,0"));
Console.ReadKey();
//File.WriteAllLines(@"screenpoints_reduced.csv", reducePoints.Select(x => x.X + "," + x.Y));
}
private void Button_LineSimplification_Click(object sender, RoutedEventArgs e)
{
var simplifier = new RamerDouglasPeucker(5);
_mapLocations = simplifier.DouglasPeuckerReduction(_mapLocations);
Canvas_Main.Children.Clear();
foreach (var clusterableLocation in _mapLocations)
{
DrawPoint(clusterableLocation, Colors.Green);
}
}
