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CurveMakeClosed Method
If IsClosed, just return true. Otherwise, decide if curve can be closed as follows: Linear curves polylinear curves with 2 segments, Nurbs with 3 or less control points cannot be made closed. Also, if tolerance > 0 and the gap between start and end is larger than tolerance, curve cannot be made closed. Adjust the curve's endpoint to match its start point.

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

Parameters

tolerance
Type: SystemDouble
If nonzero, and the gap is more than tolerance, curve cannot be made closed.

Return Value

Type: Boolean
true on success, false on failure.
See Also