xCharts:基于D3的JavaScript图表库

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xCharts是一款基于D3的JavaScript图表库,xCharts的功能非常强大,不仅支持多种图表类型,而且拥有丰富的图表主题风格,并且非常漂亮。另外,xCharts的设计非常灵活,配置也比较简单,加载速度也还不错,是一款开放性和可定制性都非常不错的JavaScript图表应用。

xCharts的特点

xCharts的使用

简单的柱形图

JavaScript代码:

var data = {
  "xScale": "ordinal",
  "yScale": "linear",
  "main": [
    {
      "className": ".pizza",
      "data": [
        {
          "x": "Pepperoni",
          "y": 4
        },
        {
          "x": "Cheese",
          "y": 8
        }
      ]
    }
  ]
};
var myChart = new xChart('bar', data, '#example1');

效果图:

线性图

JavaScript代码:

var data = {
  "xScale": "time",
  "yScale": "linear",
  "type": "line",
  "main": [
    {
      "className": ".pizza",
      "data": [
        {
          "x": "2012-11-05",
          "y": 1
        },
        {
          "x": "2012-11-06",
          "y": 6
        },
        {
          "x": "2012-11-07",
          "y": 13
        },
        {
          "x": "2012-11-08",
          "y": -3
        },
        {
          "x": "2012-11-09",
          "y": -4
        },
        {
          "x": "2012-11-10",
          "y": 9
        },
        {
          "x": "2012-11-11",
          "y": 6
        }
      ]
    }
  ]
};
var opts = {
  "dataFormatX": function (x) { return d3.time.format('%Y-%m-%d').parse(x); },
  "tickFormatX": function (x) { return d3.time.format('%A')(x); }
};
var myChart = new xChart('line', data, '#example3', opts);

效果图:

动画柱形图

JavaScript代码:

var errorBar = {
  enter: function (self, storage, className, data, callbacks) {
    var insertionPoint = xChart.visutils.getInsertionPoint(9),
      container,
      // Map each error bar into 3 points, so it's easier to draw as a single path
      // Converts each point to a triplet with y from (y - e) to (y + e)
      // It would be better to use the `preUpdateScale` method here,
      // but for this quick example, we're taking a shortcut :) 
      eData = data.map(function (d) {
        d.data = d.data.map(function (d) {
          return [{x: d.x, y: d.y - d.e}, {x: d.x, y: d.y}, {x: d.x, y: d.y + d.e}];
        });
        return d;
      }),
      paths;

    // It's always a good idea to create containers for sets
    container = self._g.selectAll('.errorLine' + className)
xChart.setVis('error', errorBar);
var data = {
    "xScale": "ordinal",
    "yScale": "linear",
    "main": [
      {
        "className": ".errorExample",
        "data": [
          {
            "x": "Ponies",
            "y": 12
          },
          {
            "x": "Unicorns",
            "y": 23
          },
          {
            "x": "Trolls",
            "y": 1
          }
        ]
      }
    ],
    "comp": [
      {
        "type": "error",
        "className": ".comp.errorBar",
        "data": [
          {
            "x": "Ponies",
            "y": 12,
            "e": 5
          },
          {
            "x": "Unicorns",
            "y": 23,
            "e": 2
          },
          {
            "x": "Trolls",
            "y": 1,
            "e": 1
          }
        ]
      }
    ]
  };

效果图:

总结

xCharts的功能相当强大,如果你在自己的Web应用中需要使用图表,那么xCharts非常适合你,可以尝试一下。

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xCharts:基于D3的JavaScript图表库

2019/10/19 9:27:54 | 谷歌SEO算法 | SEO技术