title: THREE.Path usage and example
body: <p>I'm trying to figure out how to draw a simple Path using <a href="/questions/tagged/threejs" class="post-tag" title="show questions tagged &#39;threejs&#39;" rel="tag">threejs</a>. I found no example anywhere (the ones moving the camera through a path, but not the ones drawing the path). </p>
  
  <p>What I need to archive is to draw a straight line and at the end of this, draw a spline curve.</p>
  
  <p>Using for example those points:</p>
  
  <pre><code>&lt;!-- language: lang-js --&gt;
  var v1 = new THREE.Vector2(2754, -4996); //init straight line
  var v2 = new THREE.Vector2(3345, -4996); //ini curve
  var v3 = new THREE.Vector2(4366, -4891); //mid curve
  var v4 = new THREE.Vector2(4741, -3597); //end curve
  </code></pre>
  
  <p>Can I get from this created path different other points given a initial point in this path and a distance? For instance, giving v1 and distance 1000 should give a coordinate between v2 and v3.</p>