title: Qt : Drawing Blended Transparent Lines/Curves/Paths
body: <p>I have been able to draw long transparent curves with the QPainterPath so I wont get overlapping opacity joints that would result in connecting lines between points like in Scribble. But is there a way to make a path blend its continuous transparency through out in Qt as such:
  <img src="https://i.stack.imgur.com/iyIQ6.png" alt="enter image description here"></p>