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docs: 补充 legend 文档 & 自定义转化漏斗图 demo (#2998)
* docs(legend): 完善图例文档 * docs(funnel-demo): 增加一个自定义转化漏斗图 * fix(test): 修复单测偶发失败
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189
examples/case/statistical-scenario/demo/conversion-funnel.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,189 @@ | ||
| import { Column, G2 } from '@antv/g2plot'; | ||
|
|
||
| const X_FIELD = 'stage'; | ||
| const Y_FIELD = 'count'; | ||
| const CONVERSTION_RATE = 'conversion-rate'; | ||
|
|
||
| const data = [ | ||
| { stage: '简历投递数', count: 556834 }, | ||
| { stage: '简历评估通过数', count: 500000 }, | ||
| { stage: '终面通过数', count: 400000 }, | ||
| { stage: 'offer 数', count: 320000 }, | ||
| { stage: '入职数', count: 114000 }, | ||
| ]; | ||
|
|
||
| // 添加转化率 | ||
| function transformData(datas) { | ||
| return datas.reduce((result, d, idx) => { | ||
| if (idx > 0) { | ||
| result[idx - 1][CONVERSTION_RATE] = result[idx - 1][Y_FIELD] !== 0 ? d[Y_FIELD] / result[idx - 1][Y_FIELD] : '∞'; | ||
| } | ||
| result.push(d); | ||
| return result; | ||
| }, []); | ||
| } | ||
|
|
||
| function getRectPath(points) { | ||
| const path = []; | ||
| for (let i = 0; i < points.length; i++) { | ||
| const point = points[i]; | ||
| if (point) { | ||
| const action = i === 0 ? 'M' : 'L'; | ||
| path.push([action, point.x, point.y]); | ||
| } | ||
| } | ||
|
|
||
| const first = points[0]; | ||
| path.push(['L', first.x, first.y]); | ||
| path.push(['z']); | ||
| return path; | ||
| } | ||
| function getFillAttrs(cfg) { | ||
| const defaultAttrs = { | ||
| lineWidth: 0, | ||
| fill: '#1890FF', | ||
| fillOpacity: 0.85, | ||
| }; | ||
|
|
||
| return { | ||
| ...defaultAttrs, | ||
| ...cfg.style, | ||
| fill: cfg.color, | ||
| stroke: cfg.color, | ||
| fillOpacity: cfg.opacity, | ||
| }; | ||
| } | ||
|
|
||
| // 自定义 Shape | ||
| G2.registerShape('interval', 'link-funnel', { | ||
| draw(shapeInfo, container) { | ||
| const attrs = getFillAttrs(shapeInfo); | ||
|
|
||
| const { points, nextPoints } = shapeInfo; | ||
| let rectPath = getRectPath(points); | ||
| rectPath = this.parsePath(rectPath); | ||
|
|
||
| const group = container.addGroup(); | ||
| // 灰色背景 | ||
| group.addShape('path', { | ||
| capture: false, | ||
| attrs: { | ||
| ...attrs, | ||
| fill: '#efefef', | ||
| path: this.parsePath([ | ||
| ['M', points[0].x, points[1].y], | ||
| ['L', points[0].x, 1], | ||
| ['L', points[2].x, 1], | ||
| ['L', points[2].x, points[1].y], | ||
| ]), | ||
| }, | ||
| }); | ||
| // 实际柱子 | ||
| group.addShape('path', { | ||
| name: 'column', | ||
| attrs: { | ||
| ...attrs, | ||
| path: rectPath, | ||
| }, | ||
| }); | ||
| // 存在下一节点, 添加连接带 | ||
| if (nextPoints) { | ||
| const linkPath = this.parsePath([ | ||
| ['M', points[2].x, points[2].y], | ||
| ['L', points[3].x, points[3].y], | ||
| ['L', nextPoints[0].x, nextPoints[0].y], | ||
| ['L', nextPoints[1].x, nextPoints[1].y], | ||
| ]); | ||
| group.addShape('path', { | ||
| capture: false, | ||
| attrs: { | ||
| ...attrs, | ||
| // 设置透明度 | ||
| fillOpacity: 0.25, | ||
| path: linkPath, | ||
| }, | ||
| }); | ||
| const rate = shapeInfo.data[CONVERSTION_RATE]; | ||
| const point = this.parsePoint({ | ||
| x: points[3].x + (nextPoints[0].x - points[3].x) / 2, | ||
| y: (nextPoints[1].y - nextPoints[0].y) / 2, | ||
| }); | ||
| group.addShape('text', { | ||
| attrs: { | ||
| ...point, | ||
| text: `${(rate * 100).toFixed(0)}%`, | ||
| // 字体颜色 | ||
| fill: '#666', | ||
| textAlign: 'center', | ||
| }, | ||
| }); | ||
| } | ||
| return group; | ||
| }, | ||
| }); | ||
|
|
||
| const columnPlot = new Column('container', { | ||
| data: transformData(data), | ||
| xField: X_FIELD, | ||
| yField: Y_FIELD, | ||
| seriesField: X_FIELD, | ||
| columnBackground: {}, | ||
| xAxis: false, | ||
| yAxis: false, | ||
| meta: { | ||
| type: { | ||
| alias: '类别', | ||
| range: [0.07, 0.93], | ||
| }, | ||
| sales: { | ||
| alias: '销售额', | ||
| }, | ||
| }, | ||
| label: false, | ||
| legend: false, | ||
| tooltip: { | ||
| showTitle: false, | ||
| }, | ||
| shape: 'link-funnel', | ||
| appendPadding: [28, 0, 0, 0], | ||
| annotations: data.map((d) => { | ||
| return { | ||
| type: 'text', | ||
| position: [d[X_FIELD], 'max'], | ||
| content: d[Y_FIELD], | ||
| offsetY: -5, | ||
| style: { | ||
| textAlign: 'center', | ||
| textBaseline: 'bottom', | ||
| fontSize: 18, | ||
| }, | ||
| }; | ||
| }), | ||
| interactions: [ | ||
| { | ||
| type: 'tooltip', | ||
| cfg: { | ||
| // 重新定义 tooltip 的触发时机，只有hover到 name='column'(实际柱子)的时候，才展示 tooltip | ||
| start: [ | ||
| { | ||
| trigger: 'column:mousemove', | ||
| action: 'tooltip:show', | ||
| throttle: { wait: 50, leading: true, trailing: false }, | ||
| }, | ||
| { | ||
| trigger: 'column:touchmove', | ||
| action: 'tooltip:show', | ||
| throttle: { wait: 50, leading: true, trailing: false }, | ||
| }, | ||
| ], | ||
| end: [ | ||
| { trigger: 'column:mouseleave', action: 'tooltip:hide' }, | ||
| { trigger: 'column:touchend', action: 'tooltip:hide' }, | ||
| { trigger: 'plot:leave', action: 'tooltip:hide' }, | ||
| ], | ||
| }, | ||
| }, | ||
| ], | ||
| }); | ||
|
|
||
| columnPlot.render(); |
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