谷歌图表中的舍入值

Question

我正在使用谷歌图表，当使用非常准确的十进制数字时，GG 图表倾向于将其四舍五入到小数点后 3 位

你可以在这个例子中看到它：

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

  function drawChart() {
    var data = google.visualization.arrayToDataTable([
      ['Age', 'Weight'],
      [ 8,      3.535778],
      [ 4,      5.5],
      [ 11,     14],
      [ 4,      5],
      [ 3,      3.535678],
      [ 6.5,    7]
    ]);

    var options = {
      title: 'Age vs. Weight comparison',
      hAxis: {title: 'Age', minValue: 0, maxValue: 15},
      vAxis: {title: 'Weight', minValue: 0, maxValue: 15},
      legend: 'none'
    };

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

    chart.draw(data, options);
  }

https://jsfiddle.net/00a1sut0/2/

数据中有2个数值分别为3.535778和3.535678，GG图标记为3.536

我想显示正确的十进制数

任何有想法的人？？

Answer 1

使用NumberFormat 显示精确值或定义值的模式

数据表创建后添加该位

var NumberFormat = new google.visualization.NumberFormat(
//You can explore various type of patterns in Documentation
{pattern:'##.#######'}
);
NumberFormat.format(data, 1);

NumberFormat 接受数据表和应该具有模式format(dataTable, columnIndex) 的列

总体代码

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

  function drawChart() {
    var data = google.visualization.arrayToDataTable([
      ['Age', 'Weight'],
      [ 8,      3.535778],
      [ 4,      5.5],
      [ 11,     14],
      [ 4,      5],
      [ 3,      3.535678],
      [ 6.5,    7]
    ]);

   var NumberFormat = new google.visualization.NumberFormat(
   //You can explore various type of patterns in Documentation
   {pattern:'##.#######'}
   );
   NumberFormat.format(data, 1); // Apply formatter to second column

    var options = {
      title: 'Age vs. Weight comparison',
      hAxis: {title: 'Age', minValue: 0, maxValue: 15},
      vAxis: {title: 'Weight', minValue: 0, maxValue: 15},
      legend: 'none'
    };

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

    chart.draw(data, options);
  }

在此处查看演示 - JSFiddle