【vue+baiduMap】百度地图绘制多边形区域

1、创建百度地图应用，获取权限ak

百度地图服务台

Ps.本项目里按钮等基础控件使用的是element-ui版本控件

2、项目内全局引入

index.html页面插入引用代码：

<script
      src="//api.map.baidu.com/api?v=2.0&ak=你的密钥"
      type="text/javascript"
>script>

3、项目完整代码

template：

<template>
  <div class="map-wrap">
    <h1>{{ title }}</h1>
    <div class="flex">
      <div class="button-wrap">
        <el-button
          size="small"
          type="primary"
          icon="el-icon-edit"
          @click="handleDraw('polygon')"
          >编辑</el-button
        >
        <el-button size="small" icon="el-icon-check" @click="handelFinishDraw"
          >完成</el-button
        >
        <el-button
          size="small"
          icon="el-icon-refresh-left"
          @click="handleClearDraw"
          >重置</el-button
        >
      </div>
      <div class="picker-color">
        <div class="text">选择颜色</div>
        <span
          @click="handleChangeColor(item)"
          v-for="item in colors"
          :key="item.code"
          :class="[
            'color' + item.code,
            drawColor == item.value ? 'active' : '',
          ]"
        >
          <i v-if="drawColor == item.value" class="el-icon-check"></i>
          <i v-else>&nbsp;</i>
        </span>
      </div>
    </div>
    <!--  <div :id="mapId" class="allmap" /> -->
    <div>
      <baidu-map
        ak="123"
        class="baidu-map allmap"
        :center="center"
        :zoom="zoom"
        :scroll-wheel-zoom="true"
        :mapClick="false"
        @click="mapClick"
        @rightclick="mouseOverEvent = false"
        @mousemove="syncPolygon"
      >
        <bm-marker
          v-if="mouseOverEvent && isediting"
          :position="labelPostion"
          :icon="{ url: iconimg, size: { width: 32, height: 32 } }"
        >
          <bm-label
            content="双击鼠标开始绘制，右击鼠标结束绘制"
            :labelStyle="labelStyle"
            :offset="{ width: 35, height: 20 }"
          />
        </bm-marker>
        <bm-polygon
          :path="paths"
          :stroke-color="drawColor"
          :stroke-opacity="1"
          :stroke-weight="4"
          :fill-color="drawColor"
          :fill-opacity="0.2"
          :editing="isediting"
          @lineupdate="updatePolygonPath"
        />
      </baidu-map>
    </div>
  </div>
</template>

js:

<script>
import iconimg from "@/assets/logo.png";
import BaiduMap from "vue-baidu-map/components/map/Map.vue";
import BmMarker from "vue-baidu-map/components/overlays/Marker.vue";
import BmPolygon from "vue-baidu-map/components/overlays/Polygon.vue";
import BmLabel from "vue-baidu-map/components/overlays/Label";
export default {
  props: {
    defaultArea: {
      type: Array,
      default: () => [],
    },
    defaultColor: String,
  },
  components: { BaiduMap, BmMarker, BmPolygon, BmLabel },
  data() {
    return {
      title: "地图绘制展示页",
      center: {
        lng: 111.695793,
        lat: 40.822495,
      },
      iconimg: iconimg,
      isediting: true,
      labelPostion: { lng: 111.695793, lat: 40.822495 },
      labelStyle: {
        padding: "3px 5px",
        color: "#333",
        fontSize: "14px",
        background: "#fff",
        border: "1px solid #efefef",
      },
      mouseOverEvent: true,
      isediting: false,
      paths: [],
      zoom: 15,
      markers: [],
      map: null,
      mapId: null,
      actNav: null,
      drawColor: "#2A8DFF",
      drawingManagers: null,
      colors: [
        { code: 1, value: "#FF6B36" },
        { code: 2, value: "#FFAD29" },
        { code: 3, value: "#FFDA21" },
        { code: 4, value: "#29E98F" },
        { code: 5, value: "#1EEDE6" },
        { code: 6, value: "#2A8DFF" },
        { code: 7, value: "#CC16EF" },
        { code: 8, value: "#F53ABD" },
      ],
    };
  },
  created() {},
  mounted() {},
  watch: {
    defaultArea: {
      handler(val) {
        if (val) {
          this.drawColor = this.defaultColor || "#2A8DFF";
          this.$nextTick(() => {
            if (val) {
              this.mouseOverEvent = false;
              this.drawDefault(val);
            }
          });
        }
      },
      immediate: true,
      deep: true,
    },
  },
  methods: {
    //编辑多边形
    updatePolygonPath(e) {
      this.paths = e.target.getPath();
      console.log(e);
    },
    //鼠标移动
    syncPolygon(e) {
      if (!this.isediting) {
        return;
      }
      if (!this.paths.length) {
        return;
      }
      if (!this.mouseOverEvent) {
        return;
      }
      this.labelPostion = e.point;
      this.$set(this.paths, this.paths.length - 1, e.point);
    },
    /* 操作按钮 */
    // 编辑
    handleDraw() {
      this.isediting = true;
    },
    //完成
    handelFinishDraw() {
      this.isediting = false;
      this.$emit("getMapPointsData", this.paths, this.drawColor);
    },
    //重置
    handleClearDraw() {
      this.paths = [];
      this.mouseOverEvent = true;
      this.$emit("getMapPointsData", [], "");
    },
    //地图点击事件
    mapDblclick(e) {
      this.isediting = false;
    },
    mapClick(e) {
      if (!this.isediting) {
        return;
      }
      this.labelPostion = {
        lat: e.point.lat,
        lng: e.point.lng,
      };
      this.paths.push(e.point);
    },
    //编辑默认
    drawDefault(points) {
      if (points && points.length > 0) {
        this.center = points[0];
        this.paths = points;
      }
    },
    //切换颜色
    handleChangeColor(item) {
      this.drawColor = item.value;
      this.$emit("getMapPointsData", this.paths, this.drawColor);
    },
  },
};
</script>

css: