Instance Method
tangentAngleAtNodeAtIndex:direction: tangentAngleAtNodeAtIndex:direction: tangentAngleAtNodeAtIndex_direction_
The tangent angle at a node index.
Not available in Swift.
Declaration
- (CGFloat) tangentAngleAtNodeAtIndex:(NSInteger) idx
direction:(int) direction;Declaration
tangentAngleAtNodeAtIndex_direction_(
idx: int,
direction: int
) -> floatDiscussion
Nonnegative direction values use following nodes. Negative direction values use preceding nodes.
Returns NSNotFound when no tangent can be determined.
See Also
Tangents
The tangent angle at a node.
The tangent unit vector at a node index.
The tangent unit vector at a node index.