private void DrawExtrapolation()
{
if (PointsXY.Count == 5)
{
if (ApproxChart.Series.FindByName("Extrapolation") != null)
{
ApproxChart.Series.Remove(ApproxChart.Series.FindByName("Extrapolation"));
}
Series series = new Series("Extrapolation");
series.ChartType = SeriesChartType.Point;
series.ChartArea = "Approximation functions";
if (CheckBLagrange.Checked)
{
Lagrange lagrange = new Lagrange(sortPointList(PointsXY));
series.Points.AddXY(0, lagrange.getResult(0));
series.Points.AddXY(6, lagrange.getResult(6));
}
if (CheckBLS.Checked)
{
LeastSquares leastSquares = new LeastSquares(sortPointList(PointsXY));
series.Points.AddXY(0, leastSquares.getResult(0));
series.Points.AddXY(6, leastSquares.getResult(6));
}
ApproxChart.Series.Add(series);
}
}
private void DrawFunction()
{
if (buildFunction)
{
if (CheckBLagrange.Checked && PointsXY.Count == 5)
{
Lagrange lagrange = new Lagrange(sortPointList(PointsXY));
if (ApproxChart.Series.FindByName("Lagrange") != null)
{
ApproxChart.Series.Remove(ApproxChart.Series.FindByName("Lagrange"));
}
Series series = new Series("Lagrange");
series.ChartType = SeriesChartType.Line;
series.ChartArea = "Approximation functions";
for (double x = 0; x < ApproxChart.ChartAreas[0].AxisX.Maximum; x += 0.01)
{
series.Points.AddXY(x, lagrange.getResult(x));
}
ApproxChart.Series.Add(series);
}
if (CheckBLS.Checked && PointsXY.Count == 5)
{
LeastSquares leastSquares = new LeastSquares(sortPointList(PointsXY));
if (ApproxChart.Series.FindByName("LeastSquares") != null)
{
ApproxChart.Series.Remove(ApproxChart.Series.FindByName("LeastSquares"));
}
Series series = new Series("LeastSquares");
series.ChartType = SeriesChartType.Line;
series.ChartArea = "Approximation functions";
for (double x = 0; x < ApproxChart.ChartAreas[0].AxisX.Maximum; x += 0.01)
{
series.Points.AddXY(x, leastSquares.getResult(x));
}
ApproxChart.Series.Add(series);
}
DrawExtrapolation();
}
}