This class represents a constrained arc node in the owning Assoc2dConstraintGroup.

Autodesk.AutoCAD.DatabaseServices.ConstraintGroupNode
    Autodesk.AutoCAD.DatabaseServices.ConstrainedGeometry
        Autodesk.AutoCAD.DatabaseServices.ConstrainedCurve
            Autodesk.AutoCAD.DatabaseServices.ConstrainedCircle
                Autodesk.AutoCAD.DatabaseServices.ConstrainedArc

Public Class ConstrainedArc
Inherits ConstrainedCircle

public class ConstrainedArc : ConstrainedCircle;