Question title

How to set the bar width of a bar chart, expecting the bar width to remain unchanged when the chart container becomes larger

Problem description

May I ask how to set the bar width of a bar chart so that when the chart container becomes larger, the bar width remains the same, always 16px?

Solution

VChart's bar chart supports a set of bar width configuration options.

• barWidth: width
  
• barMinWidth: Minimum width
  
• barMaxWidth: maximum width
  

The default bar width of VChart is related to the width of the chart container. This logic ensures that when the chart container is small, the bars will not overlap.
In actual use, if there is a need for a fixed width of the column, you can use barWidth . If you just don't expect the column to be too wide and unsightly, you can use barMaxWidth to limit its maximum width, so that the container is relatively small and can be displayed correctly.

Code example

const spec = {
  type: 'bar',
  data: [
    {
      id: 'barData',
      values: [
        { month: 'Monday', sales: 22 },
        { month: 'Tuesday', sales: 13 },
        { month: 'Wednesday', sales: 25 },
        { month: 'Thursday', sales: 29 },
        { month: 'Friday', sales: 38 }
      ]
    }
  ],
  barWidth: 16,
  // barMaxWidth: 16,
  xField: 'month',
  yField: 'sales'
};

const vchart = new VChart(spec, { dom: CONTAINER_ID });
vchart.renderSync();

// Just for the convenience of console debugging, DO NOT COPY!
window['vchart'] = vchart;</br>

Results show

Demo: https://codesandbox.io/p/sandbox/vchart-disabletriggerevent-forked-n5z7cl?file=%2Fsrc%2Findex.js%3A30%2C1

Related Documents

Demo：https://codesandbox.io/p/sandbox/vchart-disabletriggerevent-forked-n5z7cl?file=%2Fsrc%2Findex.js%3A30%2C1
Tutorial:

• Initialize VChart: https://visactor.io/vchart/api/API/vchart
  
• Column width: https://www.visactor.io/vchart/option/barChart#barWidth
  Github：https://github.com/VisActor/VChart/