常用的9个JavaScript图表库详解(5)

Recharts

 

ReCharts 是一个使用 React 构建的,基于 D3 的图表库。

使用 ReCharts,用户可以在 React Web 应用程序中无缝地编写图表。

Recharts 非常轻巧,并使用 SVG 元素来创建很奇特的图表。

使用 npm 安装 Recharts:

npm install recharts 

Recharts 没有冗长的文档,它很直接。当你遇到困难时,使用 Recharts 可以很容易找到解决方案。

Recharts 创建自定义内容树图的代码示例:

const {Treemap} = Recharts;

const data = [
  {
  name: 'axis',
  children: [
  { name: 'Axes', size: 1302 },
  { name: 'Axis', size: 24593 },
  { name: 'AxisGridLine', size: 652 },
  { name: 'AxisLabel', size: 636 },
  { name: 'CartesianAxes', size: 6703 },
  ],
  },
  {
  name: 'controls',
  children: [
  { name: 'AnchorControl', size: 2138 },
  { name: 'ClickControl', size: 3824 },
  { name: 'Control', size: 1353 },
  { name: 'ControlList', size: 4665 },
  { name: 'DragControl', size: 2649 },
  { name: 'ExpandControl', size: 2832 },
  { name: 'HoverControl', size: 4896 },
  { name: 'IControl', size: 763 },
  { name: 'PanZoomControl', size: 5222 },
  { name: 'SelectionControl', size: 7862 },
  { name: 'TooltipControl', size: 8435 },
  ],
  },
  {
  name: 'data',
  children: [
  { name: 'Data', size: 20544 },
  { name: 'DataList', size: 19788 },
  { name: 'DataSprite', size: 10349 },
  { name: 'EdgeSprite', size: 3301 },
  { name: 'NodeSprite', size: 19382 },
  {
  name: 'render',
  children: [
   { name: 'ArrowType', size: 698 },
   { name: 'EdgeRenderer', size: 5569 },
   { name: 'IRenderer', size: 353 },
   { name: 'ShapeRenderer', size: 2247 },
  ],
  },
  { name: 'ScaleBinding', size: 11275 },
  { name: 'Tree', size: 7147 },
  { name: 'TreeBuilder', size: 9930 },
  ],
  },
  {
  name: 'layout',
  children: [
   { name: 'AxisLayout', size: 6725 },
   { name: 'BundledEdgeRouter', size: 3727 },
   { name: 'CircleLayout', size: 9317 },
   { name: 'CirclePackingLayout', size: 12003 },
   { name: 'DendrogramLayout', size: 4853 },
   { name: 'ForceDirectedLayout', size: 8411 },
   { name: 'IcicleTreeLayout', size: 4864 },
   { name: 'IndentedTreeLayout', size: 3174 },
   { name: 'Layout', size: 7881 },
   { name: 'NodeLinkTreeLayout', size: 12870 },
   { name: 'PieLayout', size: 2728 },
   { name: 'RadialTreeLayout', size: 12348 },
   { name: 'RandomLayout', size: 870 },
   { name: 'StackedAreaLayout', size: 9121 },
   { name: 'TreeMapLayout', size: 9191 },
  ],
  },
  { name: 'Operator', size: 2490 },
  { name: 'OperatorList', size: 5248 },
  { name: 'OperatorSequence', size: 4190 },
  { name: 'OperatorSwitch', size: 2581 },
  { name: 'SortOperator', size: 2023 },
  ],
  }
 ];
const COLORS = ['#8889DD', '#9597E4', '#8DC77B', '#A5D297', '#E2CF45', '#F8C12D'];
const CustomizedContent = React.createClass({
 render() {
 const { root, depth, x, y, width, height, index, payload, colors, rank, name } = this.props;
 return (
 <g>
 <rect
  x={x}
  y={y}
  width={width}
  height={height}
  style={{
  fill: depth < 2 ? colors[Math.floor(index / root.children.length * 6)] : 'none',
  stroke: '#fff',
  strokeWidth: 2 / (depth + 1e-10),
  strokeOpacity: 1 / (depth + 1e-10),
  }}
 />
 {
  depth === 1 ?
  <text
  x={x + width / 2}
  y={y + height / 2 + 7}
  textAnchor="middle"
  fill="#fff"
  fontSize={14}
  >
  {name}
  </text>
  : null
 }
 {
  depth === 1 ?
  <text
  x={x + 4}
  y={y + 18}
  fill="#fff"
  fontSize={16}
  fillOpacity={0.9}
  >
  {index + 1}
  </text>
  : null
 }
 </g>
 );
 }
});

const SimpleTreemap = React.createClass({
 render () {
 return (
 <Treemap
  width={400}
 height={200}
 data={data}
 dataKey="size"
 ratio={4/3}
 stroke="#fff"
 fill="#8884d8"
 content={<CustomizedContent colors={COLORS}/>}
 />
 );
 }
})

ReactDOM.render(
 <SimpleTreemap />,
 document.getElementById('container')
);
      

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