动画进度条

¥Animation Progress Bar

初始动画

¥Initial animation

其他动画

¥Other animations

const config = { type: 'line', data: data, options: { animation: { duration: 2000, onProgress: function(context) { if (context.initial) { initProgress.value = context.currentStep / context.numSteps; } else { progress.value = context.currentStep / context.numSteps; } }, onComplete: function(context) { if (context.initial) { console.log('Initial animation finished'); } else { console.log('animation finished'); } } }, interaction: { mode: 'nearest', axis: 'x', intersect: false }, plugins: { title: { display: true, text: 'Chart.js Line Chart - Animation Progress Bar' } }, }, };

const config = {
  type: 'line',
  data: data,
  options: {
    animation: {
      duration: 2000,
      onProgress: function(context) {
        if (context.initial) {
          initProgress.value = context.currentStep / context.numSteps;
        } else {
          progress.value = context.currentStep / context.numSteps;
        }
      },
      onComplete: function(context) {
        if (context.initial) {
          console.log('Initial animation finished');
        } else {
          console.log('animation finished');
        }
      }
    },
    interaction: {
      mode: 'nearest',
      axis: 'x',
      intersect: false
    },
    plugins: {
      title: {
        display: true,
        text: 'Chart.js Line Chart - Animation Progress Bar'
      }
    },
  },
};

const initProgress = document.getElementById('initialProgress'); const progress = document.getElementById('animationProgress'); const DATA_COUNT = 7; const NUMBER_CFG = {count: DATA_COUNT, min: -100, max: 100}; const labels = Utils.months({count: 7}); const data = { labels: labels, datasets: [ { label: 'Dataset 1', data: Utils.numbers(NUMBER_CFG), borderColor: Utils.CHART_COLORS.red, backgroundColor: Utils.transparentize(Utils.CHART_COLORS.red, 0.5), }, { label: 'Dataset 2', data: Utils.numbers(NUMBER_CFG), borderColor: Utils.CHART_COLORS.blue, backgroundColor: Utils.transparentize(Utils.CHART_COLORS.blue, 0.5), } ] };

const initProgress = document.getElementById('initialProgress');
const progress = document.getElementById('animationProgress');
const DATA_COUNT = 7;
const NUMBER_CFG = {count: DATA_COUNT, min: -100, max: 100};
const labels = Utils.months({count: 7});
const data = {
  labels: labels,
  datasets: [
    {
      label: 'Dataset 1',
      data: Utils.numbers(NUMBER_CFG),
      borderColor: Utils.CHART_COLORS.red,
      backgroundColor: Utils.transparentize(Utils.CHART_COLORS.red, 0.5),
    },
    {
      label: 'Dataset 2',
      data: Utils.numbers(NUMBER_CFG),
      borderColor: Utils.CHART_COLORS.blue,
      backgroundColor: Utils.transparentize(Utils.CHART_COLORS.blue, 0.5),
    }
  ]
};

const actions = [ { name: 'Randomize', handler(chart) { chart.data.datasets.forEach(dataset => { dataset.data = Utils.numbers({count: chart.data.labels.length, min: -100, max: 100}); }); chart.update(); } }, { name: 'Add Dataset', handler(chart) { const data = chart.data; const dsColor = Utils.namedColor(chart.data.datasets.length); const newDataset = { label: 'Dataset ' + (data.datasets.length + 1), backgroundColor: Utils.transparentize(dsColor, 0.5), borderColor: dsColor, data: Utils.numbers({count: data.labels.length, min: -100, max: 100}), }; chart.data.datasets.push(newDataset); chart.update(); } }, { name: 'Add Data', handler(chart) { const data = chart.data; if (data.datasets.length > 0) { data.labels = Utils.months({count: data.labels.length + 1}); for (let index = 0; index < data.datasets.length; ++index) { data.datasets[index].data.push(Utils.rand(-100, 100)); } chart.update(); } } }, { name: 'Remove Dataset', handler(chart) { chart.data.datasets.pop(); chart.update(); } }, { name: 'Remove Data', handler(chart) { chart.data.labels.splice(-1, 1); // remove the label first chart.data.datasets.forEach(dataset => { dataset.data.pop(); }); chart.update(); } } ];

const actions = [
  {
    name: 'Randomize',
    handler(chart) {
      chart.data.datasets.forEach(dataset => {
        dataset.data = Utils.numbers({count: chart.data.labels.length, min: -100, max: 100});
      });
      chart.update();
    }
  },
  {
    name: 'Add Dataset',
    handler(chart) {
      const data = chart.data;
      const dsColor = Utils.namedColor(chart.data.datasets.length);
      const newDataset = {
        label: 'Dataset ' + (data.datasets.length + 1),
        backgroundColor: Utils.transparentize(dsColor, 0.5),
        borderColor: dsColor,
        data: Utils.numbers({count: data.labels.length, min: -100, max: 100}),
      };
      chart.data.datasets.push(newDataset);
      chart.update();
    }
  },
  {
    name: 'Add Data',
    handler(chart) {
      const data = chart.data;
      if (data.datasets.length > 0) {
        data.labels = Utils.months({count: data.labels.length + 1});
        for (let index = 0; index < data.datasets.length; ++index) {
          data.datasets[index].data.push(Utils.rand(-100, 100));
        }
        chart.update();
      }
    }
  },
  {
    name: 'Remove Dataset',
    handler(chart) {
      chart.data.datasets.pop();
      chart.update();
    }
  },
  {
    name: 'Remove Data',
    handler(chart) {
      chart.data.labels.splice(-1, 1); // remove the label first
      chart.data.datasets.forEach(dataset => {
        dataset.data.pop();
      });
      chart.update();
    }
  }
];

文档

¥Docs

• 动画

  ¥Animations

  • 动画回调

    ¥Animation Callbacks

• 数据结构（labels）

  ¥Data structures (labels)

• 折线

  ¥Line

• 选项

  ¥Options

  • 脚本选项

    ¥Scriptable Options