地图
世界地图
type: 'map'世界分级统计地图。通过 chart.map 提供拓扑（GeoJSON 或 TopoJSON），并用 joinBy 将数据关联到要素。
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
世界地图
编辑 · JSON
数据格式
{ ADM0_A3: string, value: number } + chart.map（GeoJSON 或 TopoJSON）
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: 'USA', value: 92 },
{ ADM0_A3: 'CHN', value: 88 }
]示例
import KatuCharts from 'katucharts.js';
KatuCharts.chart('container', {
chart: { type: 'map' },
chart: { type: 'map', map: world },
mapView: { projection: { name: 'EqualEarth' } },
colorAxis: { min: 0, max: 100 },
series: [{
joinBy: 'ADM0_A3',
data: [
{ ADM0_A3: 'BRA', value: 80 },
{ ADM0_A3: 'USA', value: 92 },
{ ADM0_A3: 'CHN', value: 88 }
]
}]
});类型特定选项
| 选项 | 描述 |
|---|---|
chart.map | GeoJSON FeatureCollection 或 TopoJSON 拓扑。 |
joinBy | 要素属性 ↔ 数据键（例如 'ADM0_A3'）。 |
mapView.projection | EqualEarth、WebMercator、Orthographic、Miller 等。 |
colorAxis | 值→区域颜色。 |
Common errors
- Why does my 世界地图 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 世界地图 chart in JavaScript?
- Install with `npm install katucharts.js`, then call KatuCharts.chart(container, { chart: { type: 'map' }, series: [...] }).
- Why does my 世界地图 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.