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PolylineTangentAt Method

Gets the unit tangent vector along the polyline at the given parameter. The integer part of the parameter indicates the index of the segment.

Namespace:  Rhino.Geometry
Assembly:  RhinoCommon (in RhinoCommon.dll)
public Vector3d TangentAt(
	double t


Type: SystemDouble
Polyline parameter.

Return Value

Type: Vector3d
The tangent along the polyline at t.
Version Information

Rhino for Mac

Supported in: 5.4

Rhino for Windows

Supported in: 6.27
See Also