/// <summary>
/// Initializes a new instance of the <c>Spline</c> class.
/// </summary>
/// <param name="controlPoints">Spline control points.</param>
/// <param name="knots">Spline knot vector.</param>
/// <param name="degree">Degree of the spline curve.</param>
public Spline(List <SplineVertex> controlPoints, double[] knots, short degree)
: base(EntityType.Spline, DxfObjectCode.Spline)
{
if (degree < 1)
{
throw new ArgumentException("The degree of the spline must be equal or greater than one.");
}
if (controlPoints.Count < 2)
{
throw new ArgumentException("The number of control points must be equal or greater than 2.");
}
if (controlPoints.Count < degree + 1)
{
throw new ArgumentException("The number of control points must be equal or greater than the spline degree + 1.");
}
if (knots.Length != controlPoints.Count + degree + 1)
{
throw new ArgumentException("The number of knots must be equals to the number of control points + spline degree + 1.");
}
this.controlPoints = controlPoints;
this.knots = knots;
this.degree = degree;
this.isPeriodic = this.PeriodicTest(controlPoints, degree);
if (this.isPeriodic)
{
this.isClosed = true;
this.flags = SplineTypeFlags.Closed | SplineTypeFlags.Periodic | SplineTypeFlags.Rational;
}
else
{
this.isClosed = controlPoints[0].Location.Equals(controlPoints[controlPoints.Count - 1].Location);
this.flags = this.isClosed ? SplineTypeFlags.Closed | SplineTypeFlags.Rational : SplineTypeFlags.Rational;
}
}
/// <summary>
/// Initializes a new instance of the <c>Spline</c> class.
/// </summary>
/// <param name="controlPoints">Spline control points.</param>
/// <param name="degree">Degree of the spline curve. Valid values are 1 (linear), degree 2 (quadratic), degree 3 (cubic), and so on up to degree 10.</param>
/// <param name="periodic">Sets if the spline as periodic closed (default false).</param>
public Spline(List <SplineVertex> controlPoints, short degree, bool periodic = false)
: base(EntityType.Spline, DxfObjectCode.Spline)
{
if (degree < 1 || degree > 10)
{
throw (new ArgumentOutOfRangeException("degree", degree, "The spline degree valid values range from 1 to 10."));
}
if (controlPoints == null)
{
throw new ArgumentNullException("controlPoints", "The Spline control points list cannot be null.");
}
if (controlPoints.Count < 2)
{
throw new ArgumentException("The number of control points must be equal or greater than 2.");
}
if (controlPoints.Count < degree + 1)
{
throw new ArgumentException("The number of control points must be equal or greater than the spline degree + 1.");
}
this.degree = degree;
this.isPeriodic = periodic;
if (this.isPeriodic)
{
this.isClosed = true;
this.flags = SplineTypeFlags.Closed | SplineTypeFlags.Periodic | SplineTypeFlags.Rational;
}
else
{
this.isClosed = controlPoints[0].Location.Equals(controlPoints[controlPoints.Count - 1].Location);
this.flags = this.isClosed ? SplineTypeFlags.Closed | SplineTypeFlags.Rational : SplineTypeFlags.Rational;
}
this.Create(controlPoints);
}
/// <summary>
/// Initializes a new instance of the <c>Spline</c> class.
/// </summary>
/// <param name="controlPoints">Spline control points.</param>
/// <param name="knots">Spline knot vector.</param>
/// <param name="degree">Degree of the spline curve. Valid values are 1 (linear), degree 2 (quadratic), degree 3 (cubic), and so on up to degree 10.</param>
public Spline(List<SplineVertex> controlPoints, double[] knots, short degree)
: base(EntityType.Spline, DxfObjectCode.Spline)
{
if (degree < 1 || degree > 10)
throw (new ArgumentOutOfRangeException("degree", degree, "The spline degree valid values range from 1 to 10."));
if (controlPoints == null)
throw new ArgumentNullException("controlPoints", "The Spline control points list cannot be null.");
if (controlPoints.Count < 2)
throw new ArgumentException("The number of control points must be equal or greater than 2.");
if (controlPoints.Count < degree + 1)
throw new ArgumentException("The number of control points must be equal or greater than the spline degree + 1.");
if (knots == null)
throw new ArgumentNullException("knots", "The Spline knots list cannot be null.");
if (knots.Length != controlPoints.Count + degree + 1)
throw new ArgumentException("The number of knots must be equals to the number of control points + spline degree + 1.");
this.controlPoints = controlPoints;
this.knots = knots;
this.degree = degree;
this.isPeriodic = this.PeriodicTest(controlPoints, degree);
if (this.isPeriodic)
{
this.isClosed = true;
this.flags = SplineTypeFlags.Closed | SplineTypeFlags.Periodic | SplineTypeFlags.Rational;
}
else
{
this.isClosed = controlPoints[0].Location.Equals(controlPoints[controlPoints.Count - 1].Location);
this.flags = this.isClosed ? SplineTypeFlags.Closed | SplineTypeFlags.Rational : SplineTypeFlags.Rational;
}
}
/// <summary>
/// Initializes a new instance of the <c>Spline</c> class.
/// </summary>
/// <param name="fitPoints">Spline fit points.</param>
/// <remarks>Spline entities created with a list of fit points cannot be used as a boundary path in a hatch.</remarks>
public Spline(List <Vector3> fitPoints)
: base(EntityType.Spline, DxfObjectCode.Spline)
{
this.degree = 3;
this.isPeriodic = false;
this.controlPoints = new List <SplineVertex>();
this.knots = new List <double>();
this.fitPoints = fitPoints;
this.creationMethod = SplineCreationMethod.FitPoints;
this.isClosed = fitPoints[0].Equals(fitPoints[fitPoints.Count - 1]);
this.flags = this.isClosed ? SplineTypeFlags.Closed | SplineTypeFlags.Rational : SplineTypeFlags.Rational;
}
/// <summary>
/// Initializes a new instance of the <c>Spline</c> class.
/// </summary>
/// <param name="fitPoints">Spline fit points.</param>
/// <remarks>Spline entities created with a list of fit points cannot be used as a boundary path in a hatch.</remarks>
public Spline(List<Vector3> fitPoints)
: base(EntityType.Spline, DxfObjectCode.Spline)
{
this.degree = 3;
this.isPeriodic = false;
this.controlPoints = new List<SplineVertex>();
this.knots = new List<double>();
this.fitPoints = fitPoints;
this.creationMethod = SplineCreationMethod.FitPoints;
this.isClosed = fitPoints[0].Equals(fitPoints[fitPoints.Count - 1]);
this.flags = this.isClosed ? SplineTypeFlags.Closed | SplineTypeFlags.Rational : SplineTypeFlags.Rational;
}
/// <summary>
/// Initializes a new instance of the <c>Spline</c> class.
/// </summary>
/// <param name="controlPoints">Spline control points.</param>
/// <param name="knots">Spline knot vector.</param>
/// <param name="degree">Degree of the spline curve. Valid values are 1 (linear), degree 2 (quadratic), degree 3 (cubic), and so on up to degree 10.</param>
/// <param name="fitPoints">Spine fit points.</param>
/// <param name="method">Spline creation method.</param>
/// <param name="isPeriodic">Sets if the spline as periodic closed (default false).</param>
internal Spline(List <SplineVertex> controlPoints, List <double> knots, short degree, List <Vector3> fitPoints, SplineCreationMethod method, bool isPeriodic)
: base(EntityType.Spline, DxfObjectCode.Spline)
{
if (degree < 1 || degree > 10)
{
throw new ArgumentOutOfRangeException(nameof(degree), degree, "The spline degree valid values range from 1 to 10.");
}
if (controlPoints == null)
{
throw new ArgumentNullException(nameof(controlPoints));
}
if (controlPoints.Count < 2)
{
throw new ArgumentException("The number of control points must be equal or greater than 2.");
}
if (controlPoints.Count < degree + 1)
{
throw new ArgumentException("The number of control points must be equal or greater than the spline degree + 1.");
}
if (knots == null)
{
throw new ArgumentNullException(nameof(knots));
}
if (knots.Count != controlPoints.Count + degree + 1)
{
throw new ArgumentException("The number of knots must be equals to the number of control points + spline degree + 1.");
}
this.fitPoints = fitPoints;
this.controlPoints = controlPoints;
this.knots = knots;
this.degree = degree;
this.creationMethod = method;
this.isPeriodic = isPeriodic;
if (this.isPeriodic)
{
this.isClosed = true;
this.flags = SplineTypeFlags.Closed | SplineTypeFlags.Periodic | SplineTypeFlags.Rational;
}
else
{
this.isClosed = controlPoints[0].Position.Equals(controlPoints[controlPoints.Count - 1].Position);
this.flags = this.isClosed ? SplineTypeFlags.Closed | SplineTypeFlags.Rational : SplineTypeFlags.Rational;
}
}
/// <summary>
/// Initializes a new instance of the <c>Spline</c> class.
/// </summary>
/// <param name="fitPoints">Spline fit points.</param>
/// <remarks>Spline entities created with a list of fit points cannot be used as a boundary path in a hatch.</remarks>
public Spline(IEnumerable <Vector3> fitPoints)
: base(EntityType.Spline, DxfObjectCode.Spline)
{
this.degree = 3;
this.isPeriodic = false;
this.controlPoints = new List <SplineVertex>();
this.knots = new List <double>();
if (fitPoints == null)
{
throw new ArgumentNullException(nameof(fitPoints));
}
this.fitPoints = new List <Vector3>(fitPoints);
this.creationMethod = SplineCreationMethod.FitPoints;
this.isClosed = this.fitPoints[0].Equals(this.fitPoints[this.fitPoints.Count - 1]);
this.flags = this.isClosed ? SplineTypeFlags.Closed | SplineTypeFlags.Rational : SplineTypeFlags.Rational;
}
/// <summary>
/// Initializes a new instance of the <c>Spline</c> class.
/// </summary>
/// <param name="controlPoints">Spline control points.</param>
/// <param name="knots">Spline knot vector.</param>
/// <param name="degree">Degree of the spline curve. Valid values are 1 (linear), degree 2 (quadratic), degree 3 (cubic), and so on up to degree 10.</param>
internal Spline(List<SplineVertex> controlPoints, List<double> knots, short degree, List<Vector3> fitPoints, SplineCreationMethod method, bool isPeriodic)
: base(EntityType.Spline, DxfObjectCode.Spline)
{
if (degree < 1 || degree > 10)
throw new ArgumentOutOfRangeException(nameof(degree), degree, "The spline degree valid values range from 1 to 10.");
if (controlPoints == null)
throw new ArgumentNullException(nameof(controlPoints), "The Spline control points list cannot be null.");
if (controlPoints.Count < 2)
throw new ArgumentException("The number of control points must be equal or greater than 2.");
if (controlPoints.Count < degree + 1)
throw new ArgumentException("The number of control points must be equal or greater than the spline degree + 1.");
if (knots == null)
throw new ArgumentNullException(nameof(knots), "The Spline knots list cannot be null.");
if (knots.Count != controlPoints.Count + degree + 1)
throw new ArgumentException("The number of knots must be equals to the number of control points + spline degree + 1.");
this.fitPoints = fitPoints;
this.controlPoints = controlPoints;
this.knots = knots;
this.degree = degree;
this.creationMethod = method;
this.isPeriodic = isPeriodic;
if (this.isPeriodic)
{
this.isClosed = true;
this.flags = SplineTypeFlags.Closed | SplineTypeFlags.Periodic | SplineTypeFlags.Rational;
}
else
{
this.isClosed = controlPoints[0].Position.Equals(controlPoints[controlPoints.Count - 1].Position);
this.flags = this.isClosed ? SplineTypeFlags.Closed | SplineTypeFlags.Rational : SplineTypeFlags.Rational;
}
}
