Creates a constraint that keeps a node within a certain distance of another node.
- iOS 8.0+
- macOS 10.10+
- tvOS 9.0+
- watchOS 3.0+
The range of allowed distances between the two nodes.
The target node used to calculate the distance.
A new constraint.
Each time when constraints are applied, a line is projected between the node’s position and the target node’s position. The distance between the two points is calculated, and if it lies outside the specified range, the node is pushed or pulled along this line until it lies within the range.