/// <summary>
/// Splits the line into two lines at the distance along the line given.
/// </summary>
/// <param name="distance">The distance along the line to split the line, in the range 0-1 (exclusive).</param>
/// <param name="line1">The first line.</param>
/// <param name="line2">The second line.</param>
/// <exception cref="System.ArgumentOutOfRangeException">The distance must be in the range 0-1.</exception>
public void SplitLine(float distance, out ILine line1, out ILine line2)
{
if (distance <= 0 || distance >= 1)
{
throw new ArgumentOutOfRangeException(
nameof(distance),
distance,
"The distance must be in the range 0-1.");
}
Vector2 p1 = Start;
Vector2 p2 = ControlPoint;
Vector2 p3 = End;
Vector2 p12 = ((p2 - p1) * distance) + p1;
Vector2 p23 = ((p3 - p2) * distance) + p2;
Vector2 p123 = ((p23 - p12) * distance) + p12;
LineVector midVector = new LineVector(p123);
line1 = new QuadraticBezierCurve(Start, new LineVector(p12), midVector);
line2 = new QuadraticBezierCurve(midVector, new LineVector(p23), End);
}
/// <summary>
/// Splits the line into two lines at the distance along the line given.
/// </summary>
/// <param name="distance">The distance along the line to split the line, in the range 0-1 (exclusive).</param>
/// <param name="line1">The first line.</param>
/// <param name="line2">The second line.</param>
/// <exception cref="System.ArgumentOutOfRangeException">The distance must be in the range 0-1.</exception>
public void SplitLine(float distance, out ILine line1, out ILine line2)
{
if (distance <= 0 || distance >= 1)
{
throw new ArgumentOutOfRangeException(
nameof(distance),
distance,
"The distance must be in the range 0-1.");
}
Vector2 p1 = Start;
Vector2 p2 = ControlPoint;
Vector2 p3 = End;
Vector2 p12 = ((p2 - p1) * distance) + p1;
Vector2 p23 = ((p3 - p2) * distance) + p2;
Vector2 p123 = ((p23 - p12) * distance) + p12;
LineVector midVector = new LineVector(p123);
line1 = new QuadraticBezierCurve(Start, new LineVector(p12), midVector);
line2 = new QuadraticBezierCurve(midVector, new LineVector(p23), End);
}
