How to configure the Y-axis with both title and unit in the VChart line chart?

#visactor #vchart #charts

Problem description

In the line chart, the Y-axis has both titles and units. How to configure them?

Solution

Axis titles can be configured through the axes.titleproperty
You can configure axes.unitto set the unit of the axis component

 axes: [
    {
      orient: 'left',
      title:{
        visible: true,
        text:'This is axis title'
      },
      unit:{
        visible: true,
        text:'Axis unit'
      }
    }
  ],

Code example

🔔 The following code can be copied and pasted into the editor to see the effect.

const spec = {
  type: 'bar',
  width: 450,
  height:300,
  xField: 'month',
  yField: 'sales',
  axes: [
    {
      orient: 'left',
      title:{
        visible: true,
        text:'This is axis title'
      },
      unit:{
        visible: true,
        text:'Axis unit'
      }
    }
  ],
  data: [
    {
      id: 'barData',
      values: [
        { month: 'Monday', sales: 22 },
        { month: 'Tuesday', sales: 13 },
        { month: 'Wednesday', sales: 25 },
        { month: 'Thursday', sales: 29 },
        { month: 'Friday', sales: 32 }
      ]
    }
  ]
};

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

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