仪表盘 / 极坐标
雷达图 / 极坐标
type: 'polar'径向坐标图；点映射到角度（类别）和半径（值）。设置chart.polar: true。
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
雷达图 / 极坐标
编辑 · JSON
数据格式
[value, value, …] · [{ name, y }]
数据结构
传入图表的 JSON——可直接放进你的 series。
series: [
{ name: 'katucharts', data: [92, 95, 88, 90, 84, 96] },
{ name: 'Legacy lib', data: [70, 55, 62, 75, 80, 58] }
]示例
import KatuCharts from 'katucharts.js';
KatuCharts.chart('container', {
chart: { type: 'polar' },
chart: { polar: true },
xAxis: { categories: ['速度', 'Theming', 'A11y', 'Exports', 'Docs', 'DX'] },
yAxis: { min: 0, max: 100 },
series: [
{ name: 'katucharts', data: [92, 95, 88, 90, 84, 96] },
{ name: 'Legacy lib', data: [70, 55, 62, 75, 80, 58] }
]
});类型特定选项
| 选项 | 描述 |
|---|---|
chart.polar: true | 激活极坐标系。 |
connectEnds | 将最后一个点连接到第一个点（默认true）。 |
pointPlacement | 'on' | 'between' | 像素偏移。 |
变体
填充雷达图
使用 'area' 系列类型实现带半透明叠加的填充雷达图。
KatuCharts.chart('container', {
chart: { type: 'polar' },
chart: { polar: true },
xAxis: { categories: ['速度','Theming','A11y','Exports','Docs','DX'] },
yAxis: { min: 0, max: 100 },
series: [
{ type: 'area', name: 'katucharts', data: [92,95,88,90,84,96], fillOpacity: 0.4 },
{ type: 'area', name: 'Legacy lib', data: [70,55,62,75,80,58], fillOpacity: 0.4 }
]
});Common errors
- Why does my 雷达图 / 极坐标 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 雷达图 / 极坐标 chart in JavaScript?
- Install with `npm install katucharts.js`, then call KatuCharts.chart(container, { chart: { type: 'polar' }, series: [...] }).
- Why does my 雷达图 / 极坐标 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.