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Arc Constructor (Point3d, Point3d, Point3d)
Initializes a new arc through three points. If the points are coincident or colinear, this will result in an Invalid arc.

Namespace: Rhino.Geometry
Assembly: RhinoCommon (in RhinoCommon.dll) Version: 5.1.50000.0 (5.0.20693.0)
Syntax
public Arc(
	Point3d startPoint,
	Point3d pointOnInterior,
	Point3d endPoint
)

Parameters

startPoint
Type: Rhino.GeometryPoint3d
Start point of arc.
pointOnInterior
Type: Rhino.GeometryPoint3d
Point on arc interior.
endPoint
Type: Rhino.GeometryPoint3d
End point of arc.
See Also