public IEnumerable <Point> ToSegments(double segmentLength)
{
var vector = (Vector)_center;
var transform = GraphicHelper.CreateRotateMatrix(_center, _rotateAngle);
var points = GraphicHelper.ToSegments(_lr, _sr, 0, Math.PI * 2, segmentLength);
if (_isReverse)
{
points.Reverse();
}
return(points.Select(p => (p + vector) * transform));
}
public Point GetPoint(double length, double segmentLength)
{
if (length < 0 || length > Length)
{
throw new ArgumentOutOfRangeException();
}
if (_isReverse)
{
length = Length - length;
}
var parameter = GraphicHelper.GetParameter(_lr, _sr, 0, length, segmentLength);
return(_center + new Vector(_lr * Math.Cos(parameter), _sr * Math.Sin(parameter)) * GraphicHelper.CreateRotateMatrix(_center, _rotateAngle));
}