MouseDragInfo

constructor(    view: View,     dx: Double = 0.0,     dy: Double = 0.0,     start: Boolean = false,     end: Boolean = false,     startTime: DateTime = DateTime.EPOCH,     time: DateTime = DateTime.EPOCH,     sx: Double = 0.0,     sy: Double = 0.0,     cx: Double = 0.0,     cy: Double = 0.0)