---
title: "LayerPopup 图层气泡"
language: "zh"
canonical: "https://l7.antv.antgroup.com/zh/examples/component/popup/layerpopup/"
---

# LayerPopup 图层气泡

[运行示例](https://l7.antv.antgroup.com/zh/examples/component/popup/layerpopup/)

[资料索引](/llms.txt)

页面需要一个 `id="container"` 的 DOM 元素。以下为原始示例源码。

## 源码

```ts
import { GaodeMap, LayerPopup, PointLayer, Scene } from '@antv/l7';

const scene = new Scene({
  id: 'map',
  map: new GaodeMap({
    pitch: 0,
    style: 'normal',
    center: [120.154672, 30.241095],
    zoom: 12,
  }),
  logoVisible: false,
});
scene.on('loaded', () => {
  const pointLayer = new PointLayer({});
  pointLayer
    .source(
      [
        {
          lng: 120.132235,
          lat: 30.250868,
          value: 34.71314604052238,
          name: '坐标点1',
        },
        {
          lng: 120.156236,
          lat: 30.260268,
          value: 96.807880210153,
          name: '坐标点2',
        },
        {
          lng: 120.163014,
          lat: 30.251297,
          value: 29.615472482876815,
          name: '坐标点3',
        },
        {
          lng: 120.15394,
          lat: 30.231489,
          value: 49.90316258911784,
          name: '坐标点4',
        },
        {
          lng: 120.154596,
          lat: 30.24065,
          value: 45.788587061188466,
          name: '坐标点5',
        },
        {
          lng: 120.150223,
          lat: 30.235078,
          value: 29.741111717098544,
          name: '坐标点6',
        },
        {
          lng: 120.143992,
          lat: 30.229411,
          value: 40.241555782182935,
          name: '坐标点7',
        },
        {
          lng: 120.136995,
          lat: 30.237439,
          value: 86.5369792415296,
          name: '坐标点8',
        },
      ],
      {
        parser: {
          type: 'json',
          x: 'lng',
          y: 'lat',
        },
      },
    )
    .color('value', ['#FFCCC6', '#CF1421'])
    .size(10)
    .shape('circle');
  scene.addLayer(pointLayer);
  const layerPopup = new LayerPopup({
    items: [
      {
        layer: pointLayer,
        fields: [
          {
            field: 'name',
            formatField: () => '名称',
          },
          {
            field: 'value',
            formatField: () => '权值',
            formatValue: (val) => val.toFixed(2),
          },
          'lng',
          'lat',
        ],
      },
    ],
  });

  scene.addPopup(layerPopup);
});
```

## 运行环境

运行示例前，先在含有 #container 的页面中等待以下初始化完成。相关文件附于文末。

```js
await (await import("/src/demo/setup.ts")).default({ container: document.getElementById('container'), path: "/examples/component/popup/demo/layerpopup.ts" });
```


## src/demo/setup.ts

```ts
import type { DemoSetupContext } from '@antv/astro-theme-antv';
import * as District from 'district-data';
import { GLTFLoader } from 'three/examples/jsm/loaders/GLTFLoader.js';

export default async function setup({ container, path }: DemoSetupContext) {
  // Tool pages provide their own React layout and SDK imports.
  if (!path.startsWith('/examples/')) return;
  // Retain only the original globals still used by gallery examples.
  Object.assign(window, { District, GLTFLoader });
  const map = document.createElement('div');
  map.id = 'map';
  container.append(map);
  await import('./map.css');
  // Match the original gallery's shared AMap environment, including raw AMap demos.
  await import('./amap');
}
```

## src/demo/map.css

```css
#map {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 320px;
}

.labelclass {
  position: absolute;
  display: inline;
  cursor: pointer;
  background: rgb(255, 228, 120);
  border: solid 2px #fff;
  padding: 4px;
  white-space: nowrap;
  font:
    bold 12px/18px arial,
    sans-serif;
  color: #fff;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  line-height: 30px;
  /* opacity: 0.7; */
  text-align: center;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
```

## src/demo/amap.ts

```ts
import AMapLoader from '@amap/amap-jsapi-loader';

// Preserve the site's development and production SDK registrations.
const credentials = import.meta.env.DEV
  ? { key: '6f025e700cbacbb0bb866712d20bb35c', securityJsCode: '290ddc4b0d33be7bc9b354bc6a4ca614' }
  : { key: 'f59bcf249433f8b05caaee19f349b3d7', securityJsCode: '2653011adeb04230b3a26cc9a780a800' };
window._AMapSecurityConfig = { securityJsCode: credentials.securityJsCode };
await AMapLoader.load({ key: credentials.key, version: '2.0', plugins: ['Map3D'] });
```