高德地图组件封装

Posted 2021-01-03 harlem

项目中用到了高德地图这块，通过朋友和官方文档资料，最终出了效果

// mapload.js

export default function remoteLoad(url, hasCallback) {
    return createScript(url)
    /**
    * 创建script
    */
    function createScript(url) {
        let scriptElement = document.createElement(‘script‘)
        document.body.appendChild(scriptElement)
        let promise = new Promise((resolve, reject) => {
            scriptElement.addEventListener(‘load‘, e => {
                removeScript(scriptElement)
                if (!hasCallback) {
                    resolve(e)
                }
            }, false)

            scriptElement.addEventListener(‘error‘, e => {
                removeScript(scriptElement)
                reject(e)
            }, false)

            if (hasCallback) {
                window.____callback____ = function() {
                    resolve()
                    window.____callback____ = null
                }
            }
        })

        if (hasCallback) {
            url += ‘&callback=____callback____‘
        }

        scriptElement.src = url

        return promise
    }

    /**
    * 移除script标签
    */
    function removeScript(scriptElement) {
        document.body.removeChild(scriptElement)
    }

}

 

//map.js

/**
 * map配置
 */
const map = {
    key : ‘7db17xxxxxxxxxxxxxxxxxxxd3592‘,
    version : ‘1.4.8‘,
    MouseTool_p : ‘AMap.MouseTool‘
}
export {
    map
}

　　

<style lange="less">
    @import ‘./styles/mapPz.less‘;
</style>

<template>
    <div class="m-map" :style="`height: 100%;width:100%`">
        <div class="search">
           <Cascader :data="data" v-model="value1"></Cascader>
           <Button type="primary">查询</Button>
           <Button type="primary" id="polygon" title="鼠标左键单击绘制，双击结束绘制">绘制选区</Button>
        </div>
        <div :ref="`${amapIndex}map`" :style="`height: 100%;width:100%`"></div>

        <fpdx-modal ref="fpdxModal" :zbArr="polygonArr" @clMap="clearMap"></fpdx-modal>
    </div>
</template>

<script>
import mapload from ‘./mapload‘;
import {map} from ‘./config‘;
import fpdxModal from "./fpdxModal.vue"
export default {  
    name:‘mapPz‘,
    components: {
        fpdxModal
    },
    props: {
        // 唯一id标识
        amapIndex: {
            type: [String, Number],
            default() {
                return ‘default‘
            }
        },
    },
    data() {
        return {
            AMap:‘‘ ,
            map:‘‘,
            mouseTool:‘‘,
            marker: [120.205001,30.257012],
            value1: [],
            polygonArr:[
                [120.205001,30.257012],
                [120.191955,30.262795],
                [120.186805,30.254195],
                [120.206546,30.246929]
            ]
        }
    },
    methods: {
        // 清除
        clearMap () {
            this.map.clearMap();       
        },
        // 创建多边形对象
        createPolygon (polygonArr) {
            let polygon = new AMap.Polygon({
                path: polygonArr,//设置路径
                strokeColor: "#FF33FF", //线颜色
                strokeOpacity: 0.2, //透明度
                strokeWeight: 3,    //宽
                fillColor: "#1791fc", //填充色
                fillOpacity: 0.35,//填充透明度     
            });
            return polygon;
        },
        
        // 实例化地图
        initMap() {
            let _this = this;
             _this.AMap = window.AMap
             _this.map = new AMap.Map(this.$refs[`${this.amapIndex}map`], {
                zoom: 14, center: this.marker
            });
            //在地图中添加MouseTool插件
             _this.mouseTool = new AMap.MouseTool( _this.map);

            //在地图中添加多边形
            _this.createPolygon(_this.polygonArr).setMap( _this.map);
            console.log(‘polygon‘,_this.createPolygon(_this.polygonArr))
        
            //绘制选区
             _this.AMap.event.addDomListener(document.getElementById(‘polygon‘), ‘click‘, function() {
                 _this.mouseTool.polygon();
            },false);
            //取坐标
             _this.AMap.event.addListener( _this.mouseTool, ‘draw‘, function(type,obj) { 
                let polygonItem = type.obj;
                let path = polygonItem.getPath();
                console.log(‘path‘,path); 
                _this.$refs.fpdxModal.showModal(true);   
            });
            
           
           /* polygon.on(‘click‘, function() {   
              alert(‘你点击了面‘);     
            }); */
             
        }
    },
    mounted() {
        if (window.AMap && window.AMap.v) {
            // 已载入API，则直接初始化
            this.$nextTick(() => {
                this.initMap()
            })
        } else {
            // 未载入API，则先载再初始化
            mapload(`https://webapi.amap.com/maps?v=${map.version}&key=${map.key}&plugin=${map.MouseTool_p}`).then(() => {
                this.initMap()
            })
        }
    }
}
</script>

上面就是效果图了...