public void OnPointDragged(MovePointBehaviour.PointMoveEventArgs e)
{
var oldPoint = e.OldPoint;
var newPoint = e.NewPoint;
var index = Curve.IndexOf(e.OldPoint);
var prevPoint = Curve.Points[index - 1];
var biggestValueForY = double.MinValue;
var newCurve = Curve.Points.GetRange(0, Curve.Points.Count);
newCurve[index] = newPoint;
var lastPoint = newCurve[newCurve.Count - 1];
for (double x = 0; x < lastPoint.X; x++)
{
var y = CurveMath.SolveCubicSpline(newCurve, x);
if (biggestValueForY > y)
{
newPoint = oldPoint;
break;
}
if (y > biggestValueForY)
{
biggestValueForY = y;
}
}
e.NewPoint = newPoint;
Curve.Points[index] = e.NewPoint;
Points = CalculateNewPoints();
}
public void OnPointDragged(MovePointBehaviour.PointMoveEventArgs e)
{
var oldPoint = e.OldPoint;
var newPoint = e.NewPoint;
var index = Curve.IndexOf(e.OldPoint);
var newCurve = Curve.Points.GetRange(0, Curve.Points.Count);
newCurve[index] = newPoint;
var firstPoint = newCurve[0];
var lastPoint = newCurve[newCurve.Count - 1];
var biggestValueForY = double.MinValue;
if (ValidateCurve)
{
for (double x = firstPoint.X + 0.01; x < lastPoint.X - 0.01; x++)
{
var y = CurveMath.SolveCubicSpline(newCurve, x);
if (y < biggestValueForY || newPoint.X >= lastPoint.X || newPoint.X <= firstPoint.X)
{
newPoint = oldPoint;
break;
}
if (y > biggestValueForY)
{
biggestValueForY = y;
}
}
}
e.NewPoint = newPoint;
Curve.Points[index] = e.NewPoint;
Points = CalculateNewPoints();
UpdateSelectedPoint();
}
public double getY(double x)
{
return(CurveMath.SolveCubicSpline(curve.Points, x));
}