/// <summary>
///
/// </summary>
/// <param name="pts"></param>
/// <param name="startTangent"></param>
/// <param name="endTangent"></param>
/// <returns></returns>
public static BSplineCurve ByPoints(Point[] pts, Vector startTangent, Vector endTangent)
{
if (pts == null || startTangent == null || endTangent == null ||
startTangent.IsZeroVector() || endTangent.IsZeroVector())
{
return null;
}
IBSplineCurveHost ent = HostFactory.Factory.BSplineByPoints(pts.ToHostArray(), startTangent, endTangent);
var spline = new BSplineCurve(ent, true);
spline.Points = pts;
spline.Degree = 3;
spline.StartTangent = startTangent;
spline.EndTangent = endTangent;
return spline;
}
/// <summary>
///
/// </summary>
/// <param name="pts"></param>
/// <returns></returns>
public static BSplineCurve ByPoints(Point[] pts)
{
if (pts == null)
{
return null;
}
int degree = 3;
var ent = HostFactory.Factory.BSplineByPoints(pts.ToHostArray(), false);
var spline = new BSplineCurve(ent, true);
spline.Points = pts;
spline.Degree = degree;
return spline;
}
/// <summary>
///
/// </summary>
/// <param name="pts"></param>
/// <param name="makePeriodic"></param>
/// <returns></returns>
public static BSplineCurve ByPoints(Point[] pts, bool makePeriodic)
{
if (pts == null)
{
return null;
}
var ent = HostFactory.Factory.BSplineByPoints(pts.ToHostArray(), makePeriodic);
var spline = new BSplineCurve(ent, true);
spline.Points = pts;
spline.Degree = 3;
spline.IsPeriodic = makePeriodic;
return spline;
}
/// <summary>
///
/// </summary>
/// <param name="controlVertices"></param>
/// <param name="degree"></param>
/// <param name="makePeriodic"></param>
/// <returns></returns>
public static BSplineCurve ByControlVertices(Point[] controlVertices, int degree, bool makePeriodic)
{
if (controlVertices == null || degree < 3)
{
return null;
}
else if (controlVertices.Length < degree + 1)
{
return null;
}
var ent = HostFactory.Factory.BSplineByControlVertices(controlVertices.ToHostArray(), degree, makePeriodic);
var spline = new BSplineCurve(ent, true);
spline.ControlVertices = controlVertices;
spline.Degree = degree;
return spline;
}