public override float DistanceTo(PointF point)
{
if (this.Point1 == point || this.Point2 == point)
{
return 0;
}
// Calculate orhogonal line
Line2D orthoLine = GetNormalLine(point);
// Calculate Intersection
PointF point3 = this.Intersection(orthoLine);
// Calculate the length on the ortho segment
if (point != point3)
{
Segment2D segment = new Segment2D(point, point3);
return segment.Length();
}
else
{
return 0;
}
}
public override float DistanceTo(PointF point)
{
if (this.Point1 == point || this.Point2 == point)
{
return 0;
}
// Calculate orhogonal line
Line2D orthoLine = this.GetNormalLine(point);
// Calculate Intersection
PointF point3 = new Line2D(this.Point1, this.Point2).Intersection(orthoLine);
if (this.ContainsAbsciss(point3.X))
{
// Calculate the length on the ortho segment
Segment2D segment = new Segment2D(point, point3);
return segment.Length();
}
else
{
Segment2D segment1 = new Segment2D(point, this.Point1);
Segment2D segment2 = new Segment2D(point, this.Point2);
return Math.Min(segment1.Length(), segment2.Length());
}
}
private PointF FindClosestExtremum(PointF mouseValuePoint)
{
int selectedIndex = (int)Math.Round(mouseValuePoint.X);
PointF returnPoint;
Segment2D segment1, segment2;
FloatSerie highSerie = highCurveType.DataSerie;
FloatSerie lowSerie = lowCurveType.DataSerie;
segment1 = new Segment2D(mouseValuePoint.X, mouseValuePoint.Y, selectedIndex, highSerie[selectedIndex]);
segment2 = new Segment2D(mouseValuePoint.X, mouseValuePoint.Y, selectedIndex, lowSerie[selectedIndex]);
if (segment1.Length() < segment2.Length())
{
returnPoint = new PointF(selectedIndex, highSerie[selectedIndex]);
}
else
{
returnPoint = new PointF(selectedIndex, lowSerie[selectedIndex]);
}
return returnPoint;
}
