I want to align the y-axis tick labels above the ticks in chartJS.

Here's what I've got so far:

I want the tick labels 0M, 20M, and 40M above the tick labels. Something like this:

Here's my chart config:

new Chart(ctx, {
    type: 'bar',
    data,
    options: {
      ...
      scales: {
        xAxes: [{ ... }],
        yAxes: [{
          stacked: true,
          position: 'right',
          gridLines: {
            drawBorder: false
          },
          ticks: {
            maxTicksLimit: 3
          }
        }]
      }
    }
  })

I'm not able to find any option in the chart options to do such a thing. Please help

I want to align the y-axis tick labels above the ticks in chartJS.

Here's what I've got so far:

I want the tick labels 0M, 20M, and 40M above the tick labels. Something like this:

Here's my chart config:

new Chart(ctx, {
    type: 'bar',
    data,
    options: {
      ...
      scales: {
        xAxes: [{ ... }],
        yAxes: [{
          stacked: true,
          position: 'right',
          gridLines: {
            drawBorder: false
          },
          ticks: {
            maxTicksLimit: 3
          }
        }]
      }
    }
  })

I'm not able to find any option in the chart options to do such a thing. Please help

• javascript
• charts
• chart.js

• try to create a new scale type and override getPixelForTick method – Rhea Commented Apr 30, 2017 at 16:47
• @Rhea sorry I'm new to ChartJS. Can you post some code? – Anubhav Dhawan Commented May 1, 2017 at 6:13
• Can you add the code or a JSFiddle with the code you are currently using to create the chart? – Tot Zam Commented May 18, 2017 at 3:42
• 1 @TotZam OK, I've added the relevant code for my chart's config – Anubhav Dhawan Commented May 19, 2017 at 5:50

2 Answers 2

You can do this by adding an animation to the options config:

options: {
    animation: {
        duration: 1,
        onComplete: function() {
            var controller = this.chart.controller;
            var chart = controller.chart;
            var yAxis = controller.scales['y-axis-0'];

            yAxis.ticks.forEach(function(value, index) {
                var xOffset = chart.width - 40;
                var yOffset = ((chart.height - 60) / 2 * index) + 15;
                ctx.fillText(value + 'M', xOffset, yOffset);
            });   
        }
    }
}

JSFiddle Demo: https://jsfiddle/m5tnkr4n/1/

You may need to adjust the hardcoded numbers in the xOffset and yOffset. These numbers will depend on the height and width of your chart, as well as what features you are displaying the in the canvas area. For example, if you remove the xAxes tick labels, you many need to decrease the -60 since that will make the chart slightly shorter. / 2 works since you set the maxTicksLimit to 3.

You can adjust the tick position with mirror, labelOffset and padding

scales: {
   yAxesA: {
      id: 'yAxisA',
      type: 'linear',
      position: 'left',      
      ticks: {
         display: true,
         mirror: true,
         labelOffset: -5,
         padding: 5
      }
   }
}