/// <summary>
/// Get point on helix at around radian.
/// </summary>
/// <param name="topEllipse">Top ellipse args of curve.</param>
/// <param name="bottomEllipse">Bottom ellipse args of curve.</param>
/// <param name="maxRadian">Max around radian of helix.</param>
/// <param name="radian">Around radian of helix.</param>
/// <returns>The point on helix at around radian.</returns>
public static Vector3 GetPointAt(EllipseArgs topEllipse, EllipseArgs bottomEllipse, float maxRadian, float radian)
{
if (maxRadian == 0)
{
maxRadian = Mathf.Epsilon;
}
return(Vector3.Lerp(EllipseCurve.GetPointAt(bottomEllipse, radian), EllipseCurve.GetPointAt(topEllipse, radian), radian / maxRadian));
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="topEllipse">Top ellipse args of curve.</param>
/// <param name="bottomEllipse">Bottom ellipse args of curve.</param>
public HelixCurve(EllipseArgs topEllipse, EllipseArgs bottomEllipse)
{
this.topEllipse = topEllipse;
this.bottomEllipse = bottomEllipse;
}
/// <summary>
/// Constructor.
/// </summary>
public HelixCurve()
{
topEllipse = new EllipseArgs();
bottomEllipse = new EllipseArgs();
}
/// <summary>
/// Constructor.
/// </summary>
public EllipseCurve()
{
args = new EllipseArgs();
}
/// <summary>
/// Get point on ellipse at around radian.
/// </summary>
/// <param name="args">Args of ellipse curve.</param>
/// <param name="radian">Around radian of ellipse.</param>
/// <returns>The point on ellipse at around radian.</returns>
public static Vector3 GetPointAt(EllipseArgs args, float radian)
{
return(args.center + new Vector3(args.semiMinorAxis * Mathf.Cos(radian), 0, args.semiMajorAxis * Mathf.Sin(radian)));
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="args">Args of ellipse curve.</param>
public EllipseCurve(EllipseArgs args)
{
this.args = args;
}