title: How to move along a path but only between two specified path points
body: <p>This question is about d3 version 3.x and path movements.</p>
  
  <p>Imagine there is a path and a circle element, and I want the circle to follow that path in a transition, but only up to some percentage.
  I was asking this before and got a great answer from Gerardo Furtado here: <a href="https://stackoverflow.com/questions/43676992/how-to-transition-along-a-path-partially-or-by-percentage-only">My former question</a></p>
  
  <p>Still, one question in this regards remains for me, and as I am a beginner, I couldn't find any working solution so far:</p>
  
  <p><strong>How can i trace this path, lets say, from a point at 25% to a point at 50%, and then later from a point at 50% to a point at 60%?</strong></p>
  
  <p>These numbers are just examples, any percentage value should be possible.</p>
  
  <p>I need to avoid that the path movement always starts from position 0, but instead i want to start path movement from the current position the circle has reached already.</p>
  
  <p>Hopefully I could express my question clear enough.</p>
  
  <p>Thank you very much for any insight and help.</p>