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LineUnitTangent Property
Gets the tangent of the line segment. Note that tangent vectors are always unit vectors.

Namespace: Rhino.Geometry
Assembly: RhinoCommon (in RhinoCommon.dll) Version: 5.1.50000.0 (5.0.20693.0)
Syntax
public Vector3d UnitTangent { get; }

Property Value

Type: Vector3d
Sets only the direction of the line, the length is maintained.
See Also