Instance Method
unitVector(atNodeIndex:side:)
The tangent unit vector at a node index, or nil when no tangent can be determined.
Not available in Objective-C.Not available in Python.
Declaration
func unitVector(
atNodeIndex nodeIndex: Int,
side: GSNode.Side
) -> CGPoint?See Also
Tangents
The tangent angle at a node, or
nilwhen no tangent can be determined.The tangent angle at a node index, or
nilwhen no tangent can be determined.The tangent unit vector at a node index, or
nilwhen no tangent can be determined.