google-visualization - 如何在 Google Charts 中指定小数点分隔符？

Question

有没有办法在 Google Charts 中指定小数点分隔符？

默认情况下，它似乎基于语言环境，但是我需要将小数点分隔符设为“点”而不是某些语言环境的逗号(我的用户所在的语言环境中逗号作为小数点分隔符是默认设置) ，但被认为是过时的/过时的)

这将适用于所有数字，从轴标签到工具提示。其余的语言环境选项将保持不变。

Answer 1

Google Visualization API 提供 formatters可用于重新格式化可视化中的数据

根据 NumberFormat :

Describes how numeric columns should be formatted. Formatting options include specifying a prefix symbol (such as a dollar sign) or the punctuation to use as a thousands marker.

下面的示例演示了如何将格式化程序应用于 Salary列以使用 . 呈现其值符号( decimalSymbol 和 groupingSymbol NumberFormat 对象的属性用于此目的)

google.load("visualization", "1", { packages: ["table"] });
google.setOnLoadCallback(drawChart);

function drawChart() {
    var data = new google.visualization.DataTable();
    data.addColumn('string', 'Name');
    data.addColumn('number', 'Salary');
    data.addColumn('boolean', 'Full Time');
    data.addRows(5);
    data.setCell(0, 0, 'John');
    data.setCell(0, 1, 10000);
    data.setCell(0, 2, true);
    data.setCell(1, 0, 'Mary');
    data.setCell(1, 1, 25000);
    data.setCell(1, 2, true);
    data.setCell(2, 0, 'Steve');
    data.setCell(2, 1, 8000);
    data.setCell(2, 2, false);
    data.setCell(3, 0, 'Ellen');
    data.setCell(3, 1, 20000);
    data.setCell(3, 2, true);
    data.setCell(4, 0, 'Mike');
    data.setCell(4, 1, 12000);
    data.setCell(4, 2, false);

    var formatter = new google.visualization.NumberFormat({ prefix: '$',decimalSymbol: '.', groupingSymbol: '.' });
    formatter.format(data, 1); // Apply formatter to second column

    var view = new google.visualization.DataView(data);
    view.setColumns([0, 1]);

    
    var table = new google.visualization.Table(document.getElementById('table_div'));
    table.draw(view, { width: '420px', height: '240px' });
}

<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<div id="table_div"></div>

更新

根据 Customizing Axes您可以使用 hAxis.format 控制标签编号的格式。和 vAxis.format

google.load("visualization", "1", { packages: ["corechart"] });
google.setOnLoadCallback(drawChart);

function drawChart() {
    var data = new google.visualization.DataTable();
    data.addColumn('string', 'Name');
    data.addColumn('number', 'Salary');
    data.addColumn('boolean', 'Full Time');
    data.addRows(5);
    data.setCell(0, 0, 'John');
    data.setCell(0, 1, 0.1000);
    data.setCell(0, 2, true);
    data.setCell(1, 0, 'Mary');
    data.setCell(1, 1, 0.2500);
    data.setCell(1, 2, true);
    data.setCell(2, 0, 'Steve');
    data.setCell(2, 1, 0.800);
    data.setCell(2, 2, false);
    data.setCell(3, 0, 'Ellen');
    data.setCell(3, 1, 0.2000);
    data.setCell(3, 2, true);
    data.setCell(4, 0, 'Mike');
    data.setCell(4, 1, 0.1200);
    data.setCell(4, 2, false);

    var formatter = new google.visualization.NumberFormat({ prefix: '$', decimalSymbol: '.', groupingSymbol: '.' });
    formatter.format(data, 1); // Apply formatter to second column

    var view = new google.visualization.DataView(data);
    view.setColumns([0, 1]);


    var table = new google.visualization.LineChart(document.getElementById('table_div'));
    table.draw(view, { width: '420px', height: '240px', vAxis: { format:'$#,##0.00'  }  });
}

<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<div id="table_div"></div>