地图
区域地图
type: 'mapregion'传入预先筛选的 FeatureCollection 即可聚焦单一区域。数据标签在每个区域的质心处标注。
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
区域地图
编辑 · JSON
数据格式
筛选后的拓扑 + { ADM0_A3, value }
数据结构
传入图表的 JSON——可直接放进你的 series。
data: [
{ ADM0_A3: 'BRA', value: 80 },
{ ADM0_A3: 'ARG', value: 45 },
{ ADM0_A3: 'PER', value: 52 }
]示例
import KatuCharts from 'katucharts.js';
KatuCharts.chart('container', {
chart: { type: 'map' },
chart: { type: 'map', map: southAmerica },
mapView: { projection: { name: 'WebMercator' } },
series: [{
joinBy: 'ADM0_A3',
dataLabels: { enabled: true, format: '{point.name}' },
data: [
{ ADM0_A3: 'BRA', value: 80 },
{ ADM0_A3: 'ARG', value: 45 }
]
}]
});类型特定选项
| 选项 | 描述 |
|---|---|
chart.map | 预先筛选的 FeatureCollection（例如一个大洲）。 |
dataLabels | 在质心处的逐要素标签。 |
Common errors
- Why does my 区域地图 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 区域地图 chart in JavaScript?
- Install with `npm install katucharts.js`, then call KatuCharts.chart(container, { chart: { type: 'mapregion' }, series: [...] }).
- Why does my 区域地图 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.