Chart.js Chart.js Line Chart - Cubic interpolation mode 示例

HTML

CSS

JavaScript

HTML

<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no" />
<title>Chart.js Chart.js Line Chart - Cubic interpolation mode</title>
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<meta name="description" content="LightYear是一个基于Bootstrap v3.3.7的后台管理系统的HTML模板。">
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</head>
  
<body>
<div class="chart-example">
  <div class="tab-content">
    <div class="chart-view"><canvas id="myChart"></canvas></div>
    <div class="chart-actions mt-3"></div>
    <ul class="nav nav-tabs mt-3">
      <li class="nav-item">
        <a class="nav-link active" data-toggle="tab" href="#myChart-config" aria-selected="true">Config</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" data-toggle="tab" href="#myChart-setup" aria-selected="false">Setup</a>
      </li>
    </ul>
    <div class="tab-content">
      <div class="tab-pane fade show active tab-pane-code" id="myChart-config">
        <pre>
const config = {
  type: 'line',
  data: data,
  options: {
    responsive: true,
    plugins: {
      title: {
        display: true,
        text: 'Chart.js Line Chart - Cubic interpolation mode'
      },
    },
    interaction: {
      intersect: false,
    },
    scales: {
      x: {
        display: true,
        title: {
          display: true
        }
      },
      y: {
        display: true,
        title: {
          display: true,
          text: 'Value'
        },
        suggestedMin: -10,
        suggestedMax: 200
      }
    }
  },
};
        </pre>
      </div>
      <div class="tab-pane fade tab-pane-code" id="myChart-setup">
        <pre>
const DATA_COUNT = 12;
const labels = [];
for (let i = 0; i < DATA_COUNT; ++i) {
  labels.push(i.toString());
}
const datapoints = [0, 20, 20, 60, 60, 120, NaN, 180, 120, 125, 105, 110, 170];
const data = {
  labels: labels,
  datasets: [
    {
      label: 'Cubic interpolation (monotone)',
      data: datapoints,
      borderColor: Utils.CHART_COLORS.red,
      fill: false,
      cubicInterpolationMode: 'monotone',
      tension: 0.4
    }, {
      label: 'Cubic interpolation',
      data: datapoints,
      borderColor: Utils.CHART_COLORS.blue,
      fill: false,
      tension: 0.4
    }, {
      label: 'Linear interpolation (default)',
      data: datapoints,
      borderColor: Utils.CHART_COLORS.green,
      fill: false
    }
  ]
};
        </pre>
      </div>
    </div>
  </div>
</div>

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<script type="text/javascript" src="http://libs.itshubao.com/chartjs/utils.js"></script>
</body>
</html>

CSS

body{
  background: #fff;
}
.tab-content .chart-view {
  max-width: 800px;
}
.tab-content .tab-pane-code {
  height: 360px;
  overflow: auto;
}
.tab-content .tab-pane-code pre {
  height: 100%;
  margin: 0px;
}
.chart-example {
  width: calc(100% - 2px);
  border: 1px solid #ececec;
  padding: 10px;
}

JavaScript

const DATA_COUNT = 12;
const labels = [];
for (let i = 0; i < DATA_COUNT; ++i) {
  labels.push(i.toString());
}
const datapoints = [0, 20, 20, 60, 60, 120, NaN, 180, 120, 125, 105, 110, 170];
const data = {
  labels: labels,
  datasets: [
    {
      label: 'Cubic interpolation (monotone)',
      data: datapoints,
      borderColor: Utils.CHART_COLORS.red,
      fill: false,
      cubicInterpolationMode: 'monotone',
      tension: 0.4
    }, {
      label: 'Cubic interpolation',
      data: datapoints,
      borderColor: Utils.CHART_COLORS.blue,
      fill: false,
      tension: 0.4
    }, {
      label: 'Linear interpolation (default)',
      data: datapoints,
      borderColor: Utils.CHART_COLORS.green,
      fill: false
    }
  ]
};

const config = {
  type: 'line',
  data: data,
  options: {
    responsive: true,
    plugins: {
      title: {
        display: true,
        text: 'Chart.js Line Chart - Cubic interpolation mode'
      },
    },
    interaction: {
      intersect: false,
    },
    scales: {
      x: {
        display: true,
        title: {
          display: true
        }
      },
      y: {
        display: true,
        title: {
          display: true,
          text: 'Value'
        },
        suggestedMin: -10,
        suggestedMax: 200
      }
    }
  },
};

const ctx = document.getElementById('myChart');

const chart = new Chart(ctx, config);

$.each(actions, function(index, value) {
    let aHtml = $('<a></a>').addClass('btn btn-default m-r-5').html(value.name);
    $('.chart-actions').append(aHtml);
    aHtml.on('click', function () {
        value.handler(chart);
    });
});