title: Draggable curve in JSXGraph
body: <p>I want to define a curve in JSXGraph that's draggable, similar to this example:</p>
  
  <p><a href="http://jsxgraph.uni-bayreuth.de/wiki/index.php/Draggable_exponential_function" rel="nofollow noreferrer">http://jsxgraph.uni-bayreuth.de/wiki/index.php/Draggable_exponential_function</a></p>
  
  <p>However, instead of the function's shape changing based on a single point being dragged, I want to drag the entire curve itself, without it changing shape. In fact, the mathematical properties aren't so important for this case - it doesn't matter if I don't define it as a function, I just want to have a fixed curve on the graph that I can drag.</p>
  
  <p>Can anyone give me an example of how to do this?</p>