统计
瀑布图
type: 'waterfall'带连接器的累积浮动条，显示增量贡献。对点使用isSum和isIntermediateSum表示总和和小计。
编辑右侧的JSON并按Run（或⌘/Ctrl + Enter）——数据、标题、类别和颜色全部实时更新。
实时
瀑布图
编辑 · JSON
数据格式
{ name, y, isSum?, isIntermediateSum?, color? }
数据结构
传入图表的 JSON——可直接放进你的 series。
data: [
{ y: 120 },
{ y: 56 },
{ y: -64 },
{ isSum: true }
]示例
import KatuCharts from 'katucharts.js';
KatuCharts.chart('container', {
chart: { type: 'waterfall' },
xAxis: { categories: ['Start', '产品', 'Opex', '总计'] },
series: [{ data: [{ y: 120 }, { y: 56 }, { y: -64 }, { isSum: true }] }]
});类型特定选项
| 选项 | 描述 |
|---|---|
upColor / color | 正值 / 负值条的颜色。 |
sumColor / intermediateSumColor | 总和 / 小计的颜色。 |
point.isSum | 将点渲染为所有先前值的总和。 |
point.isIntermediateSum | 自最后一个总和以来的小计。 |
变体
小计与合计
用 isIntermediateSum 和 isSum 数据点表示小计和最终合计。
KatuCharts.chart('container', {
chart: { type: 'waterfall' },
series: [{
dataLabels: { enabled: true, format: '{point.y}' },
data: [
{ y: 120 },
{ y: 56 },
{ y: 38 },
{ isIntermediateSum: true },
{ y: -64 },
{ y: -18 },
{ isSum: true }
]
}]
});Common errors
- Why does my 瀑布图 chart render as a line chart?
- The chart type was not registered. KatuCharts logs "KatuCharts: unknown series type "<type>", falling back to line" and draws a line chart rather than throwing. Import the module the type belongs to — for example `import 'katucharts.js/bio';` — before creating the chart.
- Why do I get "Cannot read properties of null (reading 'appendChild')"?
- The container element does not exist when the chart is created. Create the chart after the element is in the DOM: in React that means inside useEffect, not during render.
- Why is the chart rendering with zero height?
- The container has no height. A div with no content collapses to zero. Give it a height in CSS, or pass `chart: { height: 400 }` in the options.
FAQ
- How do I create a 瀑布图 chart in JavaScript?
- Install with `npm install katucharts.js`, then call KatuCharts.chart(container, { chart: { type: 'waterfall' }, series: [...] }).
- Why does my 瀑布图 chart render as a line chart?
- The chart type was not registered. KatuCharts logs "KatuCharts: unknown series type "<type>", falling back to line" and draws a line chart rather than throwing. Import the module the type belongs to — for example `import 'katucharts.js/bio';` — before creating the chart.
- Why do I get "Cannot read properties of null (reading 'appendChild')"?
- The container element does not exist when the chart is created. Create the chart after the element is in the DOM: in React that means inside useEffect, not during render.
- Why is the chart rendering with zero height?
- The container has no height. A div with no content collapses to zero. Give it a height in CSS, or pass `chart: { height: 400 }` in the options.