Print out jointLandmark reliably

[mhamilt]

print just after this line?

https://github.com/csabau/BTracking/blob/9cba6cd650fe3d50fb30d53a3a791f1e0fcd21ff/Sources/BodyTracking/BodyTracker2D.swift#L139

[mhamilt]

This is a mess

https://github.com/csabau/BTracking/blob/9cba6cd650fe3d50fb30d53a3a791f1e0fcd21ff/Sources/BodyTracking/BodyTracker2D.swift#L128-L156

Lets clean up the indentation

Those bodyDetected statements aren't helping anyone and theguard`else cases could be neater

private func updateJointScreenPositions(frame: ARFrame)
{
  guard let detectedBody = frame.detectedBody 
  else 
  {
    bodyIsDetected = false    
    return
  }

  bodyIsDetected = true  

  guard let interfaceOrientation = self.arView.window?.windowScene?.interfaceOrientation else  { return }

  let jointLandmarks = detectedBody.skeleton.jointLandmarks

  // ---------------------------------------------------------------------------
  // Convert the normalized joint points into screen-space CGPoints.  
  let transform = frame.displayTransform(for: interfaceOrientation, 
                                viewportSize: self.arView.frame.size)
  // ---------------------------------------------------------------------------
  for i in 0..<jointLandmarks.count 
  {
    if (jointLandmarks[i].x.isNaN || jointLandmarks[i].y.isNaN) 
    {
      continue
    }

    let point = CGPoint(x: CGFloat(jointLandmarks[i].x),
                        y: CGFloat(jointLandmarks[i].y))

    // -------------------------------------------------------------------------
    // Convert from normalized pixel coordinates (0,0 top-left, 1,1 bottom-right) to screen-space coordinates.    
    let normalizedCenter = point.applying(transform)
    let center = normalizedCenter.applying(CGAffineTransform.identity.scaledBy(x: self.arView.frame.width, 
                                                                               y: self.arView.frame.height))
    self.jointScreenPositions[i] = center    
    // -------------------------------------------------------------------------
  }
}

This isn't to say this is the best style, but definitely be consistent in what you are doing.

Now, is there anything stopping you from adding print(jointLandmarks[i].x, jointLandmarks[i].y) into that for i in 0..<jointLandmarks.count loop?

[mhamilt]

i.e.

private func updateJointScreenPositions(frame: ARFrame)
{
  guard let detectedBody = frame.detectedBody 
  else 
  {
    bodyIsDetected = false    
    return
  }

  bodyIsDetected = true  

  guard let interfaceOrientation = self.arView.window?.windowScene?.interfaceOrientation else  { return }

  let jointLandmarks = detectedBody.skeleton.jointLandmarks

  // ---------------------------------------------------------------------------
  // Convert the normalized joint points into screen-space CGPoints.  
  let transform = frame.displayTransform(for: interfaceOrientation, 
                                viewportSize: self.arView.frame.size)
  // ---------------------------------------------------------------------------
  for i in 0..<jointLandmarks.count 
  {
    if (jointLandmarks[i].x.isNaN || jointLandmarks[i].y.isNaN) 
    {
      continue
    }

    let point = CGPoint(x: CGFloat(jointLandmarks[i].x),
                        y: CGFloat(jointLandmarks[i].y))

    print(jointLandmarks[i].x, jointLandmarks[i].y)
    // -------------------------------------------------------------------------
    // Convert from normalized pixel coordinates (0,0 top-left, 1,1 bottom-right) to screen-space coordinates.    
    let normalizedCenter = point.applying(transform)
    let center = normalizedCenter.applying(CGAffineTransform.identity.scaledBy(x: self.arView.frame.width, 
                                                                               y: self.arView.frame.height))
    self.jointScreenPositions[i] = center    
    // -------------------------------------------------------------------------
  }
}