public bool ContainsPoint(GraphPoint point)
{
for (int i = 0; i < Points.Count - 1; i++)
if (Points[i].X <= point.X && Points[i + 1].X >= point.X)
{
double x1 = Points[i].X;
double x2 = Points[i + 1].X;
double x = point.X;
double y1 = Points[i].Y;
double y2 = Points[i + 1].Y;
double y = point.Y;
double k = (y2 - y1) / (x2 - x1);
double b = y1 - k * x1;
if (Math.Abs((y - k * x) - b) < Precision * Math.Max(y1, y2))
return true;
}
return false;
}
private Point TransformPoint(GraphPoint point)
{
return new Point(Convert.ToInt32((point.X - XBase) * (Width - GraphMargin*2) / XSize),
Convert.ToInt32((point.Y - YBase) * (Height - GraphMargin*2) / YSize));
}