Google图表，每天的时间从8:00开始，到7:45结束 [英] Google charts, timeofday starts at 8:00 and ends at 7:45

问题描述

我在使用Google图表时遇到了一些麻烦.我有一个Google区域图:

I'm having some trouble with Google charts. I have a Google area chart:

<script type="text/javascript">
  google.load("visualization", "1", {packages:["corechart"]});
  google.setOnLoadCallback(drawChart);
  function drawChart() {
    var data = new google.visualization.DataTable();
     data.addColumn('timeofday','time');
     data.addColumn('number','temp');
     data.addRows([
       [[8,0,0],7.875],
       [[8,15,0],7.9399996],
       [[8,30,0],8.1],
       [[8,45,0],8.160001],
       [[9,0,0],8.139999],
       // data every quarter of an hour
       [[7,15,0],9.26],
       [[7,30,0],9.26],
       [[7,45,0],9.18]
     ]);

    var options = {
      title: 'Title',
      vAxis: {
        title: 'AvgTemp',
        titleTextStyle: {color: 'red'},
      }
      hAxis: {
        title: 'Time',
        titleTextStyle: {color: 'red'},
      }
    };

    var chart = new google.visualization.AreaChart(document.getElementById('chart_div2'));
    chart.draw(data, options);
  }
</script>

现在，当我加载页面时，图表的hAxis开始于0:00，结束于24:00，并破坏了图表.如何使图表从8:00开始到7:45结束?

Now, when I load my page, the hAxis of the chart starts at 0:00 and ends at 24:00, and it destroys the chart. How can I make it so that the chart starts at 8:00 and ends at 7:45?

我已经尝试过使用视图窗口进行某些操作，但似乎无法使其正常工作.

I've tried some things with view window but I can't seem to make it work.

谢谢.

推荐答案

答案是使用日期时间而不是一天中的某个时间，这样您就需要添加一个日期，这就是api如何知道哪个时间先到

The answer was to use a datetime instead of a time of the day, this way you need to add a date and thats how the api knows which time comes first.

像这样:

<script type="text/javascript">
  google.load("visualization", "1", {packages:["corechart"]});
  google.setOnLoadCallback(drawChart);
  function drawChart() {
    var data = new google.visualization.DataTable();
     data.addColumn('datetime','time');
     data.addColumn('number','temp');
     data.addRows([

    [new Date(2012,11,3,8,0,0),7.875],
    [new Date(2012,11,3,8,15,0),7.9399996],
    [new Date(2012,11,3,8,30,0),8.1],
    [new Date(2012,11,3,8,45,0),8.160001],
    [new Date(2012,11,3,9,0,0),8.139999],
    //new data every quarter of an hour
    [new Date(2012,11,4,7,0,0),9.42],
    [new Date(2012,11,4,7,15,0),9.26],
    [new Date(2012,11,4,7,30,0),9.26],
    [new Date(2012,11,4,7,45,0),9.18]

     ]);

    var options = {
      title: 'Title',
      vAxis: {  title: 'AvgTemp',
                titleTextStyle: {color: 'red'},

            },
      hAxis: {  title: 'Time',
                titleTextStyle: {color: 'red'},                 
            }

    };

    var chart = new google.visualization.AreaChart(document.getElementById('chart_div2'));
    chart.draw(data, options);
  }
</script>

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