title: JFreeChart multiple tooltips along x-axis
body: <p>I have added tooltips into line chart using <code>StandardXYToolTipGenerator</code>.</p>
  
  <pre><code>final XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer();
  plot.setRenderer(renderer);
  renderer.setBaseToolTipGenerator(new StandardXYToolTipGenerator());
  </code></pre>
  
  <p>It works well, but I need to move cursor to the precise point to show the tooltip. I hope I can do something like <a href="https://codepen.io/plotly/pen/GJPjeY" rel="nofollow noreferrer" title="Plotly">Plotly</a> where the tooltips of all series will be shown along the x-axis.</p>