private static IBSplineCurveEntity ByPointsCore(ref DSPoint[] points, DSVector startTangent, DSVector endTangent, bool makePeriodic)
{
IPointEntity[] hosts = points.ConvertAll(DSGeometryExtension.ToEntity <DSPoint, IPointEntity>);
if (hosts == null || hosts.Length < 2)
{
throw new System.ArgumentException(string.Format(Properties.Resources.InvalidArguments, "points"), "points");
}
if (hosts.AreCoincident())
{
throw new System.ArgumentException(string.Format(Properties.Resources.PointsCoincident, "points"), "points"); //Can't create BSpline curve with all coincident points.
}
IBSplineCurveEntity ent = null;
if (null != startTangent && null != endTangent)
{
ent = HostFactory.Factory.BSplineByPoints(hosts, startTangent.IVector, endTangent.IVector);
}
else
{
ent = HostFactory.Factory.BSplineByPoints(hosts, makePeriodic);
}
if (ent == null)
{
throw new System.Exception(string.Format(Properties.Resources.OperationFailed, "DSBSplineCurve.ByPoints"));
}
points = hosts.ToArray <DSPoint, IPointEntity>(false);
return(ent);
}
public void WriteObject(IBSplineCurveEntity entity)
{
IPointEntity[] points = entity.GetControlVertices();
WriteEntity <IPointEntity>("ControlVertices", points);
WriteInteger("Degree", entity.GetDegree());
WriteBoolean("IsPeriodic", entity.GetIsPeriodic());
}
public IBSplineCurveEntity ReadBSplineCurve()
{
Object data = GetData("ControlVertices");
Array vertices = data as Array;
if (null == vertices)
{
throw new DataMisalignedException(string.Format("Invalid data : {0} for parameter {1}", data, "ControlVertices"));
}
GeometryDataSerializer stream = new GeometryDataSerializer(vertices);
List <IPointEntity> points = new List <IPointEntity>();
foreach (var item in stream)
{
points.Add(stream.ReadPoint());
}
int degree = ReadInteger("Degree");
bool periodic = ReadBoolean("IsPeriodic");
IBSplineCurveEntity entity = HostFactory.Factory.BSplineByControlVertices(points.ToArray(), degree, periodic);
points.ForEach(GeometryExtension.DisposeObject);
return(entity);
}
public string WriteEntity(IBSplineCurveEntity bspline, string paramName = null)
{
if (string.IsNullOrEmpty(paramName))
{
paramName = string.Format("__bspline_{0}", ++id);
}
IPointEntity[] points = bspline.GetControlVertices();
string cp = WriteEntities(points);
mExpression.AppendFormat("{0} = BSplineCurve.ByControlVertices({1}, {2}, {3});", paramName, cp, bspline.GetDegree(), bspline.GetIsPeriodic());
mExpression.AppendLine();
return(paramName);
}
private DSBSplineCurve(IBSplineCurveEntity host, bool persist = false)
: base(host, persist)
{
InitializeGuaranteedProperties();
}
private DSBSplineCurve(IBSplineCurveEntity host, bool persist = false)
: base(host, persist)
{
InitializeGuaranteedProperties();
}
