笛卡尔坐标
平滑面积图
type: 'areaspline'具有平滑Catmull-Rom插值的面积图——面积的填充区域与平滑曲线的曲线相结合。
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
平滑面积图
编辑 · JSON
数据格式
与折线图相同
数据结构
传入图表的 JSON——可直接放进你的 series。
series: [
{ name: '桌面端', data: [450, 520, 480, 610, 580] }
]示例
import KatuCharts from 'katucharts.js';
KatuCharts.chart('container', {
chart: { type: 'areaspline' },
series: [{ name: '桌面端', data: [450, 520, 480, 610, 580] }]
});类型特定选项
| 选项 | 描述 |
|---|---|
（继承面积+平滑曲线选项） | fillOpacity、stacking、smoothing。 |
变体
堆叠
将平滑填充的系列堆叠为累计总量。
KatuCharts.chart('container', {
chart: { type: 'areaspline' },
plotOptions: { areaspline: { stacking: 'normal' } },
series: [
{ name: '桌面端', data: [450, 520, 480, 610, 580, 320, 280] },
{ name: '移动端', data: [280, 350, 420, 510, 490, 410, 380] }
]
});Common errors
- Why does my 平滑面积图 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 平滑面积图 chart in JavaScript?
- Install with `npm install katucharts.js`, then call KatuCharts.chart(container, { chart: { type: 'areaspline' }, series: [...] }).
- Why does my 平滑面积图 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.