Нужен алгоритм для масштабирования графиков

		private void Simplify2(FastChartSerie serie, double tolerance) {
			serie.Points.Clear();

			double prevX = 0;
			double maxY = 0;

			foreach (DataRowView rowView in _source) {
				var dt = Convert.ToDateTime(rowView[ArgumentFieldName]);
				double val = 0;
				if (!(rowView[serie.ColumnName] is DBNull)) {
					val = Convert.ToDouble(rowView[serie.ColumnName]);
				}

				double x = calcX(dt);

				if (serie.Points.Count==0) {
					prevX = x;
					maxY = val;

					serie.Points.Add(new FastChartPoint() { X = dt, Y = maxY });
				} else {
					double dist = x - prevX;

					if(dist<tolerance) {
						if(Math.Abs(val)>Math.Abs(maxY)) {
							maxY = val;
						}
					} else {
						prevX = x;
						serie.Points.Add(new FastChartPoint() { X = dt, Y = maxY});
						maxY = 0;
					}
				}

			}
		}