function pointsInScapulaCoordinates = CT2ScapulaCoordinates(obj,points)
  if (size(points,2) ~= 3)
    error('points should be an Nx3 array')
    pointsInScapulaCoordinates = points;
    return
  end
  origin = obj.scapula.coordSys.origin;
  xAxis = obj.scapula.coordSys.PA;
  yAxis = obj.scapula.coordSys.IS;
  zAxis = obj.scapula.coordSys.ML;
  scapulaFrame = [xAxis',yAxis',zAxis'];

  pointsInScapulaCoordinates = (points-origin)*scapulaFrame;
end