public static double[] LeastSquareData(LineItem allPointsForBuilding)
{
double[] xData = GraphProcessing.CurveToArray(allPointsForBuilding, true);
double[] yData = GraphProcessing.CurveToArray(allPointsForBuilding, false);
var ds = new XYDataSet(xData, yData);
double k = ds.Slope;
double b = ds.YIntercept;
return(new double[] { k, b });
}
public static PointPair Sigma(LineItem originalCurve, PointPair p2, LineItem LineCurve, LineItem curved2, MainProgram form, bool zeroTwo, string name)
{
int index = originalCurve.Points.Count - 4;
double[] xData = GraphProcessing.CurveToArray(LineCurve, true);
double[] yData = GraphProcessing.CurveToArray(LineCurve, false);
double offSetY = originalCurve[index].Y - p2.Y;
double offSetX = originalCurve[index].X - p2.X;
for (int i = 0; i < xData.Length; i++)
{
xData[i] += offSetX;
yData[i] += offSetY;
}
var ds = new XYDataSet(xData, yData);
double k = ds.Slope;
double b = ds.YIntercept;
LineItem curve = null;
form.buttons.Add(GraphProcessing.CreateCurve(ref curve, form.CurvesDropDownButton, form.ZGCInstance, "Параллель 1", Color.DarkCyan, 1, SymbolType.Default, Color.DarkCyan));
int curveLength = originalCurve.Points.Count;
for (int i = 0; i < 1.1 * originalCurve.Points[curveLength - 5].X; i++)
{
if ((k * i + b) > 0)
{
curve.AddPoint(new PointPair(i, k * i + b));
}
}
// y = kx + b x = (y-b)/k; kx = b = > x = k/b
double pos = Math.Abs(b / k);
curve.AddPoint(new PointPair(pos, 0));
int offSetX2 = (int)Math.Round(0.8 * curve.Points[0].X);
LineItem curve2;
curve2 = LineCurve.Clone();
form.buttons.Add(GraphProcessing.CreateCurve(ref curve2, form.CurvesDropDownButton, form.ZGCInstance, "Параллель 2", Color.DarkCyan, 1, SymbolType.Default, Color.DarkCyan));
for (int i = 0; i < LineCurve[0].X; i++)
{
if ((form.kCoef * i + form.bCoef) > 0)
{
curve2.AddPoint(new PointPair(i, form.kCoef * i + form.bCoef));
}
}
curve2.AddPoint(new PointPair(Math.Abs(form.bCoef / form.kCoef), 0));
form.IntersectionPointBegin = curve[curve.Points.Count - 1].X;
form.IntersectionPointEnd = curve2[curve2.Points.Count - 1].X;
curve.Tag = 5;
curve2.Tag = 1;
// y = kx + b
// y = k(x+0.02) + b
// y = kx + 0.02k + b
// yy = kx + (0.02k + b
// -kx + y = b
double distance = Math.Abs(form.IntersectionPointEnd - form.IntersectionPointBegin);
PointPair temp = new PointPair(0, 0);
if (zeroTwo)
{
temp = parallelLineSigma(0.02, form, LineCurve, originalCurve, distance, name);
}
else
{
temp = parallelLineSigma(0.05, form, LineCurve, originalCurve, distance, name);
}
GraphProcessing.UpdateGraph(form.ZGCInstance);
return(temp);
}