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 main_MouseMove(object sender, MouseEventArgs e)
{
Point mousePosition = e.GetPosition(main);
for (int i = 0; i < 5; i++)
{
if (userPoints[i].IsMoving)
{
Point p = ConvertCanvasCoordsToChart(new Point(mousePosition.X, mousePosition.Y));
userPoints[i].Y = p.Y;
userPoints[i].Draw(main);
}
}
if (mousePosition.X < 480)
{
info.Draw(mousePosition.X, mousePosition.Y);
}
double[] x = new double[5];
double[] y = new double[5];
for (int i = 0; i < 5; i++)
{
x[i] = userPoints[i].X;
y[i] = userPoints[i].Y;
}
LeastSquares lsleastSquaresSolver = new LeastSquares(x, y);
lsleastSquaresSolver.BottomTrainglePath();
leastSquaresKoef = lsleastSquaresSolver.UpperTrainglePath();
leastSquaresMethodLine.Points.Clear();
lagrangePolynomialMethodLine.Points.Clear();
for (int i = 0; i < 70; i++)
{
Point p1 = ConvertChartCoordsToCanvas(new Point(i * 0.1, GetFunctionValue(i * 0.1, leastSquaresKoef)));
leastSquaresMethodLine.Points.Add(p1);
Point p2 = ConvertChartCoordsToCanvas(new Point(i * 0.1, LagrangePolinomial.GetValue(i * 0.1, x, y)));
lagrangePolynomialMethodLine.Points.Add(p2);
}
UpdateInputDataTable();
UpdateLeastSquaresTable();
UpdateLagrangePolynomialTable(LagrangePolinomial.GetValue(0, x, y), LagrangePolinomial.GetValue(6, x, y));
}
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();
}
}