vis.js时间轴数据处理

标签：00 start items js vis 时间轴 var 2014 data
代码案例
<!doctype html>
<html>
<head>
  <title>Timeline</title>
  <script type="text/javascript" src="https://unpkg.com/vis-timeline@latest/standalone/umd/vis-timeline-graph2d.min.js"></script>
  <link href="https://unpkg.com/vis-timeline@latest/styles/vis-timeline-graph2d.min.css" rel="stylesheet" type="text/css" />
  <style type="text/css">
    body,
    html {
      font-family: arial, sans-serif;
      font-size: 11pt;
    }

    textarea {
      width: 400px;
      height: 200px;
    }

    .buttons {
      margin: 20px 0;
    }

    .buttons input {
      padding: 10px;
    }
    #visualization {
      width: 500px;
    }

  </style>
</head>
<body>
  <div id="visualization"></div>
  <div class="buttons">
    <input
      type="button"
      id="load"
      value="↓ Load"
      title="Load data from textarea into the Timeline"
    />
    <input
      type="button"
      id="save"
      value="↑ Save"
      title="Save data from the Timeline into the textarea"
    />
  </div>
  <textarea id="data">
    [
      {
        "id": 1,
        "content": "item 1",
        "start": "2014-01-01T01:00:00"
      },
      {
        "id": 2,
        "content": "item 2",
        "start": "2014-01-01T02:00:00"
      },
      {
        "id": 3,
        "content": "item 3",
        "start": "2014-01-01T03:00:00"
      },
      {
        "id": 4,
        "content": "item 4",
        "start": "2014-01-01T04:00:00",
        "end": "2014-01-01T04:30:00"
      },
      {
        "id": 5,
        "content": "item 5",
        "start": "2014-01-01T05:00:00",
        "type": "point"
      },
      {
        "id": 6,
        "content": "item 6",
        "start": "2014-01-01T06:00:00"
      }
    ]
  </textarea>
  
<script type="text/javascript">
  var txtData = document.getElementById("data");
  var btnLoad = document.getElementById("load");
  var btnSave = document.getElementById("save");

  // Create an empty DataSet.
  // This DataSet is used for two way data binding with the Timeline.
  var items = new vis.DataSet();

  // create a timeline
  var container = document.getElementById("visualization");
  var options = {
    editable: true,
  };
  var timeline = new vis.Timeline(container, items, options);

  function loadData() {
    // get and deserialize the data
    var data = JSON.parse(txtData.value);

    // update the data in the DataSet
    //
    // Note: when retrieving updated data from a server instead of a complete
    // new set of data, one can simply update the existing data like:
    //
    //   items.update(data);
    //
    // Existing items will then be updated, and new items will be added.
    items.clear();
    items.add(data);

    // adjust the timeline window such that we see the loaded data
    timeline.fit();
  }
  btnLoad.onclick = loadData;

  function saveData() {
    // get the data from the DataSet
    //
    // Note that we specify the output type of the fields start and end
    // as "ISODate", which is safely serializable. Other serializable types
    // are "Number" (unix timestamp), "ASPDate" or "String" (without timezone!).
    //
    // Alternatively, it is possible to configure the DataSet to convert
    // the output automatically to ISODates like:
    //
    //   var options = {
    //     type: {start: 'ISODate', end: 'ISODate'}
    //   };
    //   var items = new vis.DataSet(options);
    //   // now items.get() will automatically convert start and end to ISO dates.
    //
    var data = items.get({
      type: {
        start: "ISODate",
        end: "ISODate",
      },
    });

    // serialize the data and put it in the textarea
    txtData.value = JSON.stringify(data, null, 2);
  }
  btnSave.onclick = saveData;

  // load the initial data
  loadData();

</script>
</body>
</html>
效果图
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标签：00,start,items,js,vis,时间轴,var,2014,data
From： https://www.cnblogs.com/dogleftover/p/18155738
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