动画

以下为全局选项，在中定义。

• 'linear'
• 'easeInQuad'
• 'easeOutQuad'
• 'easeInOutQuad'
• 'easeInCubic'
• 'easeOutCubic'
• 'easeInQuart'
• 'easeOutQuart'
• 'easeInOutQuart'
• 'easeInQuint'
• 'easeInOutQuint'
• 'easeInSine'
• 'easeOutSine'
• 'easeInOutSine'
• 'easeInExpo'
• 'easeOutExpo'
• 'easeInOutExpo'
• 'easeInCirc'
• 'easeOutCirc'
• 'easeInOutCirc'
• 'easeInElastic'
• 'easeOutElastic'
• 'easeInOutElastic'
• 'easeInOutBack'
• 'easeInBounce'
• 'easeOutBounce'
• 'easeInOutBounce'
  参考 Robert Penner's easing equations.

onProgress和onComplete回调对于外部操作同步到图表动画，回调传递一个Chart.Animation实例：

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

这些回调的另一个例子可以在上找到：该示例显示一个进度条，显示动画的距离。