title: Determine if Shapely point is within a LineString/MultiLineString
body: <p>I am trying to use Shapely's <code>within</code> function to do a 'spatial join' of a LineString and a Point file (FYI, the point file was generated using the <code>interpolate</code> function on the <code>LineString</code>). Problem is - nothing is being returned.</p>
  
  <pre><code># this condition is never satisfied
  if point.within(line):
      # here I write stuff to a file
  </code></pre>
  
  <p>where:</p>
  
  <pre><code>point = POINT (-9763788.9782693591000000 5488878.3678984242000000)
  line = LINESTRING (-9765787.998118492 5488940.974948905, -9748582.801636808 5488402.127570709)
  </code></pre>
  
  <p>What am I missing?</p>