Convert Scene's (x, y) to screen's (x, y)

Question

I have an application built with SceneKit that is currently displaying several nodes. I can figure out which node is pressed and want to use that to make a label appear belo

Answer 1

You can use the projectPoint: method:

var projected = view.projectPoint(result.node.position))   
//projected is an SCNVector3
//projected.x and y are the node's position in screen coordinates
//projected.z is its depth relative to the near and far clipping planes
nameLabel.center = CGPointMake(CGFloat(projected.x), CGFloat(projected.y+20)