vue3和 ts加载lealfet热力图
时间: 2023-12-24 16:58:13 浏览: 69
可以通过以下步骤使用 Vue3 和 TypeScript 加载 Leaflet 热力图:
1. 安装 Leaflet 和 Leaflet.heat 插件:
```
npm install leaflet leaflet.heat
```
2. 在 Vue3 项目中引入 Leaflet 和 Leaflet.heat:
```typescript
import { createApp } from 'vue';
import L from 'leaflet';
import 'leaflet/dist/leaflet.css';
import 'leaflet.heat/dist/leaflet-heat.js';
import App from './App.vue';
const app = createApp(App);
// 让 Leaflet 的默认图标加载正确
delete L.Icon.Default.prototype._getIconUrl;
L.Icon.Default.mergeOptions({
iconRetinaUrl: require('leaflet/dist/images/marker-icon-2x.png').default,
iconUrl: require('leaflet/dist/images/marker-icon.png').default,
shadowUrl: require('leaflet/dist/images/marker-shadow.png').default,
});
app.mount('#app');
```
3. 在组件中使用 Leaflet 和 Leaflet.heat:
```typescript
<template>
<div id="map"></div>
</template>
<script lang="ts">
import { defineComponent, onMounted } from 'vue';
import L from 'leaflet';
import 'leaflet/dist/leaflet.css';
import 'leaflet.heat/dist/leaflet-heat.js';
export default defineComponent({
name: 'HeatMap',
setup() {
onMounted(() => {
const map = L.map('map').setView([51.505, -0.09], 13);
L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
attribution: 'Map data © <a href="https://openstreetmap.org">OpenStreetMap</a> contributors',
}).addTo(map);
const heat = L.heatLayer([[51.5, -0.09, 1]], { radius: 25 }).addTo(map);
});
return {};
},
});
</script>
```
以上代码中的 `L.heatLayer` 就是 Leaflet.heat 插件提供的热力图图层类,接受一个坐标数组和一些可选的配置项,如 `radius` 等。
希望这能帮助到你!
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