Animations

Chart.js animates charts out of the box. A number of options are provided to configure how the animation looks and how long it takes.

• Looping tension [property]
• Hide and show [mode]

config setup

const config = {
  type: 'line',
  data: data,
  options: {
    animations: {
      tension: {
        duration: 1000,
        easing: 'linear',
        from: 1,
        to: 0,
        loop: true
      }
    },
    scales: {
      y: { // defining min and max so hiding the dataset does not change scale range
        min: 0,
        max: 100
      }
    }
  }
};

const data = {
  labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
  datasets: [{
    label: 'Looping tension',
    data: [65, 59, 80, 81, 26, 55, 40],
    fill: false,
    borderColor: 'rgb(75, 192, 192)',
  }]
};

config setup

const config = {
  type: 'line',
  data: data,
  options: {
    transitions: {
      show: {
        animations: {
          x: {
            from: 0
          },
          y: {
            from: 0
          }
        }
      },
      hide: {
        animations: {
          x: {
            to: 0
          },
          y: {
            to: 0
          }
        }
      }
    }
  }
};

const data = {
  labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
  datasets: [{
    label: 'Try hiding me',
    data: [65, 59, 80, 81, 26, 55, 40],
    fill: false,
    borderColor: 'rgb(75, 192, 192)',
  }]
};

Animation configuration

Animation configuration consists of 3 keys.

These keys can be configured in following paths:

• `` - chart options
• datasets[type] - dataset type options
• overrides[type] - chart type options

These paths are valid under defaults for global confuguration and options for instance configuration.

animation

The default configuration is defined here: core.animations.js

Namespace: options.animation

These defaults can be overridden in options.animation or dataset.animation and tooltip.animation. These keys are also Scriptable.

animations

Animations options configures which element properties are animated and how. In addition to the main animation configuration, the following options are available:

Namespace: options.animations[animation]

Default animations

Note

These default animations are overridden by most of the dataset controllers.

transitions

The core transitions are 'active', 'hide', 'reset', 'resize', 'show'. A custom transition can be used by passing a custom mode to update. Transition extends the main animation configuration and animations configuration.

Default transitions

Namespace: options.transitions[mode]

Disabling animation

To disable an animation configuration, the animation node must be set to false, with the exception for animation modes which can be disabled by setting the duration to 0.

chart.options.animation = false; // disables all animations
chart.options.animations.colors = false; // disables animation defined by the collection of 'colors' properties
chart.options.animations.x = false; // disables animation defined by the 'x' property
chart.options.transitions.active.animation.duration = 0; // disables the animation for 'active' mode

Easing

Available options are:

• 'linear'
• 'easeInQuad'
• 'easeOutQuad'
• 'easeInOutQuad'
• 'easeInCubic'
• 'easeOutCubic'
• 'easeInOutCubic'
• 'easeInQuart'
• 'easeOutQuart'
• 'easeInOutQuart'
• 'easeInQuint'
• 'easeOutQuint'
• 'easeInOutQuint'
• 'easeInSine'
• 'easeOutSine'
• 'easeInOutSine'
• 'easeInExpo'
• 'easeOutExpo'
• 'easeInOutExpo'
• 'easeInCirc'
• 'easeOutCirc'
• 'easeInOutCirc'
• 'easeInElastic'
• 'easeOutElastic'
• 'easeInOutElastic'
• 'easeInBack'
• 'easeOutBack'
• 'easeInOutBack'
• 'easeInBounce'
• 'easeOutBounce'
• 'easeInOutBounce'

See Robert Penner’s easing equations (opens new window).

Animation Callbacks

The animation configuration provides callbacks which are useful for synchronizing an external draw to the chart animation. The callbacks can be set only at main animation configuration.

Namespace: options.animation

The callback is passed the following object:

{
  // Chart object
  chart: Chart,
  // Number of animations still in progress
  currentStep: number,
  // `true` for the initial animation of the chart
  initial: boolean,
  // Total number of animations at the start of current animation
  numSteps: number,
}

The following example fills a progress bar during the chart animation.

const chart = new Chart(ctx, {
    type: 'line',
    data: data,
    options: {
        animation: {
            onProgress: function(animation) {
                progress.value = animation.currentStep / animation.numSteps;
            }
        }
    }
});

Another example usage of these callbacks can be found on Github (opens new window): this sample displays a progress bar showing how far along the animation is.