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CurveIsArc Method
Test a curve to see if it can be represented by an arc or circle within RhinoMath.ZeroTolerance.

Namespace: Rhino.Geometry
Assembly: RhinoCommon (in RhinoCommon.dll) Version: 5.1.50000.0 (5.0.20693.0)
Syntax
public bool IsArc()

Return Value

Type: Boolean
true if the curve can be represented by an arc or a circle within tolerance.
See Also