Question

所以我通过手动输入数据来了解如何使用Google Charts Google Chart，如示例所示，但我无法弄清楚如何从Google表格中提取数据。最令人困惑的部分是我能够和不能从示例的代码中删除，例如：

  data.addRows([
    ['Research', 'Find sources', null,
     new Date(2015, 0, 1), new Date(2015, 0, 5), null,  100,  null],
    ['Write', 'Write paper', 'write',
     null, new Date(2015, 0, 9), daysToMilliseconds(3), 25, 'Research,Outline'],
    ['Cite', 'Create bibliography', 'write',
     null, new Date(2015, 0, 7), daysToMilliseconds(1), 20, 'Research'],
    ['Complete', 'Hand in paper', 'complete',
     null, new Date(2015, 0, 10), daysToMilliseconds(1), 0, 'Cite,Write'],
    ['Outline', 'Outline paper', 'write',
     null, new Date(2015, 0, 6), daysToMilliseconds(1), 100, 'Research']
  ]);

和

  var data = new google.visualization.DataTable();
  data.addColumn('string', 'Task ID');
  data.addColumn('string', 'Task Name');
  data.addColumn('string', 'Resource');
  data.addColumn('date', 'Start Date');
  data.addColumn('date', 'End Date');
  data.addColumn('number', 'Duration');
  data.addColumn('number', 'Percent Complete');
  data.addColumn('string', 'Dependencies');

我如何正确地对我的工作表进行查询，然后绘制图表。我猜，这基本上意味着我不知道蹲下，并且正在试图弄清楚这一点...... ...

以下是我的数据：Google Sheets

正如你所看到的，我显然是一个JS文盲。任何帮助非常感谢。以下是我糟糕的c＆amp; p frankencode：

google.charts.load('current', {'packages':['gantt']});
google.charts.setOnLoadCallback(drawChart);

function daysToMilliseconds(days) {
  return days * 24 * 60 * 60 * 1000;
}

function drawChart() {
  var query = new google.visualization.Query('https://docs.google.com/spreadsheets/d/1M3wQgKg3JBF6_hzv1xWONP7HWVYoOvJ1jPbB27IUg94/gviz/tq?gid=0&headers=1');

  query.setQuery('SELECT A, B, C, D, E, F, G, H');
  query.send(function (response) {
    if (response.isError()) {
        alert('Error in query: ' + response.getMessage() + ' ' + response.getDetailedMessage());
        return;
    };

  var data = new google.visualization.DataTable();
   data.addColumn('string', 'Task ID');
   data.addColumn('string', 'Task Name');
   data.addColumn('string', 'Resource');
   data.addColumn('date', 'Start Date');
   data.addColumn('date', 'End Date');
   data.addColumn('number', 'Duration');
   data.addColumn('number', 'Percent Complete');
   data.addColumn('string', 'Dependencies');

  var data = response.getDataTable();

  var options = {
    height: 275
  };

  var chart = new google.visualization.Gantt(document.getElementById('chart_div'));

  chart.draw(data, options);
}

Answer 1

如果电子表格数据与图表的data format匹配，则为不需要数据操作。
这似乎就是这种情况......

请参阅以下工作片段，
对'Outline'的{{1}}依赖似乎有点偏离......

'Write'

google.charts.load('current', {
  callback: drawChart,
  packages: ['gantt']
});

function drawChart() {
  var query = new google.visualization.Query('https://docs.google.com/spreadsheets/d/1M3wQgKg3JBF6_hzv1xWONP7HWVYoOvJ1jPbB27IUg94/gviz/tq?gid=0&headers=1');
  query.send(function (response) {
    if (response.isError()) {
      console.log('Error in query: ' + response.getMessage() + ' ' + response.getDetailedMessage());
      return;
    };

    var options = {
      height: 275
    };

    var chart = new google.visualization.Gantt(document.getElementById('chart_div'));
    chart.draw(response.getDataTable(), options);
  });
}

如何使用Google图表使用Google表格中的数据绘制甘特图？

1 个答案: