SKNode convertPoint toNode & fromNode confusion?

Question

I am a little confused by how the SKNode methods convertPoint:fromNode: and convertPoint:ToNode: are working, I have looked at the doc

Answer 1

I know this is a late response, but normally, I want to use the node's parent as the coordinate system for the node's position. So, I found this extension to be very useful:

extension SCNNode {
    func convertPosition(node:SCNNode) -> SCNVector3 {
        return self.convertPosition(node.position, fromNode:node.parentNode)
    }
}

For example, instead of calling this:

let position = scene.rootNode.convertPosition(node.position, fromNode: node.parentNode)

you just call this:

let position = scene.rootNode.convertPosition(node)