anchor: Transform:transformPoint
  Applies the Transform object's transformation to the given 2D position.
  
  This effectively converts the given position from global coordinates into the local coordinate space of the Transform.
  localX, localY = Transform:transformPoint( globalX, globalY )
  globalX number The x component of the position in global coordinates.
  globalY number The y component of the position in global coordinates.
  localX number The x component of the position with the transform applied.
  localY number The y component of the position with the transform applied.