public static void FlattenQuadratic(Point[] controlPoints, double errorTolerance, List <Point> resultPolyline, bool connect)
{
BezierCurveFlattener.FlattenCubic(new Point[4]
{
controlPoints[0],
VectorUtilities.WeightedAverage(controlPoints[0], controlPoints[1], 2.0 / 3.0),
VectorUtilities.WeightedAverage(controlPoints[1], controlPoints[2], 1.0 / 3.0),
controlPoints[2]
}, errorTolerance, resultPolyline, connect);
}
public static bool ComputeClosestPointOnTransformedLineSegment(Point point, Point a, Point b, Matrix matrix, double toleranceSquared, out double resultParameter, out Point resultPoint, out double resultDistanceSquared)
{
Vector a1 = (b - a) * matrix;
Vector b1 = point - a * matrix;
double lengthSquared = a1.LengthSquared;
resultParameter = lengthSquared < FloatingPointArithmetic.SquaredDistanceTolerance ? 0.0 : VectorUtilities.Dot(a1, b1) / lengthSquared;
if (resultParameter <= 0.0)
{
resultParameter = 0.0;
resultPoint = a;
}
else if (resultParameter >= 1.0)
{
resultParameter = 1.0;
resultPoint = b;
}
else
{
resultPoint = VectorUtilities.WeightedAverage(a, b, resultParameter);
}
resultDistanceSquared = (resultPoint * matrix - point).LengthSquared;
return(resultDistanceSquared <= toleranceSquared);
}