title: echarts: bar chart start at value?
body: <p>echarts: bar chart bars are located left and right of the value on the category axis:
  <a href="https://i.stack.imgur.com/t6wjA.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/t6wjA.png" alt="enter image description here" /></a></p>
  <p>How to tell echarts to start the bar with the value on the category axis? Like this:
  <a href="https://i.stack.imgur.com/UiwKU.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/UiwKU.png" alt="enter image description here" /></a></p>
  <p>To clarify the problem, here ist another example. This is a chart of the hourly sum of precipitation. Every bar should show the sum from the bottom to the top of the hour, the data values are conencted to every bottom of the hour.
  <a href="https://i.stack.imgur.com/XhqlP.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/XhqlP.png" alt="enter image description here" /></a></p>
  <p>as you can see, the bars are not starting at 8:00, they are starting at 7:30.</p>
  <p>Data: (timestamps are shown in CET)</p>
  <pre><code>series: [
    {
      name: &quot;Niederschlag&quot;,
      type: &quot;bar&quot;,
      data: [[1608534000000, 3], [1608537600000, 5], [1608541200000, 2], [1608544800000, 0], [1608548400000, 1] ],
      barWidth: '100%'
    }
  ]
  </code></pre>
  <p>It should look like this:</p>
  <p><a href="https://i.stack.imgur.com/5EHiF.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/5EHiF.png" alt="enter image description here" /></a></p>