Curve.TangentAtStart Property

CurveTangentAtStart Property

Evaluates the unit tangent vector at the start of the curve.

Namespace:  Rhino.Geometry
Assembly:  RhinoCommon (in RhinoCommon.dll)
Since: 5.0
Syntax
Copy
public Vector3d TangentAtStart { get; }
Public ReadOnly Property TangentAtStart As Vector3d
	Get

Return Value

Type: Vector3d
Unit tangent vector of the curve at the start point.
Remarks
No error handling.
See Also

P:Rhino.Geometry.Curve.TangentAtStart