百度地图

TIP
加载百度地图。
代码如下:

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vue
<template>
  <div id="map"></div>
</template>

<script lang="ts" setup>
import { Map, View } from "ol";
import { TileImage } from "ol/source";
import { Tile as TileLayer } from "ol/layer";
import { onMounted, onBeforeUnmount } from "vue";
import { get, Projection } from "ol/proj";
import TileGrid from "ol/tilegrid/TileGrid";
import { ATTRIBUTIONS } from "../../../constants";

//坐标参考系
const projection = get("EPSG:3857") as Projection;
//分辨率
const resolutions: number[] = [];
for (let i = 0; i < 19; i += 1) {
  resolutions[i] = Math.pow(2, 18 - i);
}
const tilegrid = new TileGrid({
  origin: [0, 0],
  resolutions: resolutions,
});

//拼接百度地图出图地址
const baidu_source = new TileImage({
  //设置坐标参考系
  projection: projection,
  //设置分辨率
  tileGrid: tilegrid,
  attributions: ATTRIBUTIONS,
  //出图基地址
  tileUrlFunction: (tileCoord) => {
    if (!tileCoord) {
      return "";
    }
    const z = tileCoord[0];
    let x: string | number = tileCoord[1];
    let y: string | number = tileCoord[2];

    if (x < 0) {
      x = "M" + -x;
    }
    if (y < 0) {
      y = "M" + -y;
    }
    return (
      "http://online3.map.bdimg.com/onlinelabel/?qt=tile&x=" +
      x +
      "&y=" +
      y +
      "&z=" +
      z +
      "&styles=pl&udt=20151021&scaler=1&p=1"
    );
  },
});
//百度地图
const baidu_layer = new TileLayer({
  source: baidu_source,
});
let map: Map | null = null;
onMounted(() => {
  map = new Map({
    //地图容器div的ID
    target: "map",
    //地图容器中加载的图层
    layers: [
      //加载瓦片图层数据
      baidu_layer,
    ],
    //地图视图设置
    view: new View({
      //地图初始中心点
      center: [0, 0],
      //地图初始显示级别
      zoom: 2,
    }),
  });
});

onBeforeUnmount(() => {
  if (map) {
    map.dispose();
    map = null;
  }
});
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
#map {
  height: 650px;
}
</style>
百度地图 ​

代码如下: ​

百度地图

代码如下:
