private static System.Windows.Point[] filter(Point2Dmm[] arg)
{
var result = new List <System.Windows.Point>();
foreach (var point in arg)
{
var p = OffsetCalculator.AsPoint(point);
if (result.Count > 0 && (result.Last() - p).Length < 0.1)
{
continue;
}
result.Add(p);
}
return(result.ToArray());
}