需求：初始化页面在地图上显示所有厂站坐标（以标注点位形式）并可点击展示对应厂站信息。

　　　支持搜索定位厂站（单个点击厂站）并自动弹出相应厂站信息,清空input输入框自动初始化地图（全国地图）

 

 

 

 

<template>
    <div class="GIS_box">
        <a-button class="GIS_Button"  icon="unordered-list" @click="onHandleGIS">厂站视图</a-button>
        <div class="GIS_Button_left">
            <div style="border-bottom:1px solid #f1f1f1;margin-bottom:10px;padding-bottom:6px" >
                <span style="font-weight:600;font-size:15px;margin-right:10px;">厂站列表</span>
                <a-icon type="info-circle" style="margin: 5px;"/>共{{total}}条</div>
            <a-input-search allowClear v-model="searchStr" @search="onSearch" placeholder="输入厂站名称关键字搜索" />
            <!-- selectedKeys是选中项key的集合，expandedKeys是展开项key的集合 -->
            <a-tree
                v-model="checkedKeys"
                :expanded-keys="expandedKeys"
                :auto-expand-parent="autoExpandParent"
                :selected-keys="selectedKeys"
                @expand="onExpand"
                @select="onSelect"
            >
                <a-icon slot="icon" type="carry-out" />
                <a-tree-node :key="item.code" v-for="item in arrNum">
                    <a-icon slot="icon" type="carry-out" />
                    <span slot="title" style="color:#333">{{item.name}}</span>
                    <a-tree-node :key="i.code" :title="i.name" v-for="i in item.nodes">
                        <a-icon slot="icon" type="carry-out" />
                        <a-tree-node :key="j.code" :title="j.name" v-for="j in i.nodes">
                            <a-icon slot="icon" type="carry-out" />
                        </a-tree-node>
                    </a-tree-node>
                </a-tree-node>
            </a-tree>
        </div>
        <!-- Map -->
        <div id="container">
        </div>
    </div>
</template>

<script>
import viewMap from '@/components/ZF/viewMap'
import { query_station_with_address, query_station_info } from '@/api/factory'
export default {
    name: 'BMapGL',
    data () {
        return {
            showLine: true,
            total: '',
            arrNum: [],
            expanded: [],
            expandedKeys: [],
            backupsExpandedKeys: [],
            autoExpandParent: true,
            checkedKeys: [],
            selectedKeys: [],
            searchStr: '',

            lng: 118.920079,
            lat: 32.086119
        }
    },
    mounted () {
        let _this = this
        this.$nextTick(() => {
            _this.Address()
        })
    },
    watch: {
        searchStr: {
            handler (newValue, oldValue) {
                this.onSearch()
            },
            immediate: true
        }
    },
    methods: {
　　　　　// 树
        Address () {
            this.arrNum = []
            this.total = 0
            const params = {}
            query_station_with_address(params).then(res => {
                if (res.code === '00000') {
                    this.total = res.data.count
                    this.arrNum = res.data.tree
                    this.totalNum()
                }
            })
        },
　　　　　//返回其他页面
        onHandleGIS () {
            this.$parent.handleGIS()
            this.expandedKeys = []
            this.selectedKeys = []
            this.autoExpandParent = false
            this.searchStr = ''
        },
　　　　　// input框事件
        onSearch () {
            let vm = this
            vm.searchValue = vm.searchStr
            if (vm.searchValue === '') {
                vm.expandedKeys = []
                this.totalNum()
                this.expandedKeys = []
                this.selectedKeys = []
            } else {
                vm.expandedKeys = []
                vm.backupsExpandedKeys = []
                let candidateKeysList = []
                let key = []
                candidateKeysList = vm.getkeyList(vm.searchValue, vm.arrNum, [])
                // 遍历满足条件的所有节点
                candidateKeysList.map(item => {
                    key = vm.getParentKey(item, vm.arrNum)
                    if (key && !vm.backupsExpandedKeys.some(item => item === key)) { vm.backupsExpandedKeys.push(key) }
                })
                let length = this.backupsExpandedKeys.length
                for (let i = 0; i < length; i++) {
                    vm.getAllParentKey(vm.backupsExpandedKeys[i], vm.arrNum)
                }
                // console.log(candidateKeysList)
                vm.expandedKeys = vm.backupsExpandedKeys.slice()
                vm.selectedKeys = vm.backupsExpandedKeys.slice()
                vm.onSelect(candidateKeysList) //选中树事件
            }
        },
        // 获取节点中含有value的所有key集合
        getkeyList (value, tree, keyList) {
        // 遍历所有同一级的树
            for (let i = 0; i < tree.length; i++) {
                let node = tree[i]
                // console.log(node.name)
                // 如果该节点存在value值则push
                if (node.name.indexOf(value) > -1) {
                    keyList.push(node.code)
                    // console.log(node.code)
                }
                // 如果拥有孩子继续遍历
                if (node.nodes) {
                    this.getkeyList(value, node.nodes, keyList)
                }
            }
            // 因为是引用类型，所有每次递归操作的都是同一个数组
            return keyList
        },
        // 该递归主要用于获取key的父亲节点的key值
        getParentKey (key, tree) {
            let parentKey, temp
            // 遍历同级节点
            for (let i = 0; i < tree.length; i++) {
                const node = tree[i]
                if (node.nodes) {
                    // 如果该节点的孩子中存在该key值，则该节点就是我们要找的父亲节点
                    // 如果不存在，继续遍历其子节点
                    if (node.nodes.some(item => item.code === key)) {
                        parentKey = node.code
                    // eslint-disable-next-line no-cond-assign
                    } else if (temp = this.getParentKey(key, node.nodes)) {
                        // parentKey = this.getParentKey(key,node.children)
                        // 改进，避免二次遍历
                        parentKey = temp
                    }
                }
            }
            return parentKey
        },
        // 获取该节点的所有祖先节点
        getAllParentKey (key, tree) {
            var parentKey
            if (key) {
                // 获得父亲节点
                parentKey = this.getParentKey(key, tree)
                // 如果父亲节点存在，判断是否已经存在于展开列表里，不存在就进行push
                if (parentKey) {
                    if (!this.backupsExpandedKeys.some(item => item === parentKey)) {
                        this.backupsExpandedKeys.push(parentKey)
                    }
                    // 继续向上查找祖先节点
                    this.getAllParentKey(parentKey, tree)
                }
            }
        },
        // 初始化
        initMap (numPoint) {
            // eslint-disable-next-line new-cap
            ksMap = new viewMap(numPoint) //实例化class类
        },
        onExpand (expandedKeys) {
            // console.log(expandedKeys)
            this.expandedKeys = expandedKeys
            this.autoExpandParent = false
        },
        // 树选中事件
        onSelect (selectedKeys, info) {
            this.arrNum.map(item => {
                item.nodes.map(i => {
                    i.nodes.map(j => {
                        if (j.data.uniq === selectedKeys[0]) {
                            this.handleEdit(selectedKeys[0], j.data.longitude, j.data.attitude)
                            this.selectedKeys = selectedKeys
                            // this.searchStr = j.name
                        }
                    })
                })
            })
        },
        // 初始化点位值
        totalNum () {
            let numPoint = []
            this.arrNum.map(item => {
                item.nodes.map(i => {
                    i.nodes.map(j => {
                        numPoint.push({
                            uniq: j.data.uniq,
                            lng: j.data.longitude,
                            lat: j.data.attitude,
                            name: j.name
                        })
                    })
                })
            })
            this.initMap(numPoint)
        },
        // 详情
        handleEdit (selectedKeys, lng, lat) {
            let modalList = []
            const params = {
                station_uniq: selectedKeys
            }
            query_station_info(params).then(res => {
                if (res.code === '00000') {
                    modalList = res.data
                    ksMap.theLocation(lng, lat, modalList)
                }
            })
        }
    }
}
</script>

<style scoped lang="less">
/deep/.BMap_bubble_pop{
    padding: 0!important;
}
/deep/.BMap_bubble_title{
    padding-left: 10px;
    background: #F3F3F3;
    font-size: 16px;
}
.show{
display: block;
}
.block{
    display: none;
}
    #container {
        overflow: hidden;
        width: 100%;
        height: 75vh;
        margin: 0;
        font-family: "微软雅黑";
    }
    .GIS_box {
        position: relative;
        width: 100%;
        height: 72vh;
    .GIS_Button {
        z-index: 999;
        position: absolute;
        top: 10px;
        right: 10px;
    }
    .GIS_Button_left{
        width: 250px;
        padding: 10px;
        height: 74.9vh;
        overflow-y:scroll;
        background: rgba(255, 255, 255, 1);
        z-index: 999;
        position: absolute;
        top: 0px;
        left: 0px;
        box-shadow: 3px 3px rgba(235, 235, 235,0.7);
    }
}
/deep/.BMap_cpyCtrl span {
    display: none!important;
}
/deep/.ant-tree.ant-tree-show-line li span.ant-tree-switcher {
    color: rgba(0, 157, 255, 1);
    background: rgba(0, 0, 0, 0);
}
/deep/.ant-tree-title{
    color: #333;
}
// 经过
// /deep/.ant-tree li .ant-tree-node-content-wrapper:hover {
//     background: rgba(0, 0, 0, 0);
// }
// /deep/.ant-tree li .ant-tree-node-content-wrapper.ant-tree-node-selected {
//     background-color: rgba(0, 157, 255, 1);
// }
/deep/.ant-input{
    background: rgba(0, 0, 0, 0);
    color: #333;
}
</style>

import { query_station_info } from '@/api/factory' //接口
export default class viewMap {
    constructor (numPoint, zoom) {
        this.numPoint = numPoint
        this.zoom = zoom
        this.map = new BMapGL.Map('container')
        this.initMap()
    }
    initMap () {
        let point = new BMapGL.Point(105.291, 37.094) //全国中心位置
        this.map.centerAndZoom(point, 5)
        this.map.enableScrollWheelZoom(true)
        this.onNumPoint()
        // 创建添加点标记
        // let marker = new BMapGL.Marker(point)
        // this.map.addOverlay(marker)
        // this.theLocation(118.920079, 32.086119, []) // 详情窗口
    }
    // 初始化所有点位
    onNumPoint () {
        const vm = this
        // eslint-disable-next-line no-array-constructor
        let point = new Array()// 定义数组标注经纬信息
        for (let i = 0; i < vm.numPoint.length; i++) { // 遍历
            point[i] = new BMapGL.Point(vm.numPoint[i].lng, vm.numPoint[i].lat)
            let marker = new BMapGL.Marker(point[i])// 坐标添加到Marker中
            vm.map.addOverlay(marker)
            // marker.setLabel(new BMapGL.Label(vm.numPoint[i].name))
            this.infoUniq(marker, vm.numPoint[i].uniq, point[i])
            // marker添加点击事件
            // marker.addEventListener('click', function (e) {
            //     // console.log(point[i])
            //     // let lng = Number(e.latLng.lng.toFixed(6))
            //     // let lat = Number(e.latLng.lat.toFixed(6))

            //     // vm.infoUniq(lng, lat)
            // })
        }
    }
    // 初始化加载所有弹框点位信息
    infoWin (marker, modalList) {
        let vm = this
        // 创建图文信息窗口
        let sContent = this.htmlView(modalList)
        let A = ''
        A = modalList.cname ? modalList.cname : '--'
        let opts = {
            title: A, // 信息窗口标题
            message: ''
        }
        let infoWindow = new BMapGL.InfoWindow(sContent, opts)
        marker.addEventListener('click', function () {
            this.openInfoWindow(infoWindow)
        })
    }
    // 初始化弹框
    infoUniq (marker, uniq) {
        let modalList = []
        const params = {
            station_uniq: uniq
        }
        query_station_info(params).then(res => {
            if (res.code === '00000') {
                modalList = res.data
                // 创建图文信息窗口
                this.infoWin(marker, modalList)
            }
        })
    }
    // 点击用经纬度设置地图中心点
    theLocation (lng, lat, modalList) {
        let vm = this
        let zoom = 14
        // this.map.clearOverlays() // 清空覆盖物
        let new_point = new BMapGL.Point(lng, lat)
        this.map.centerAndZoom(new_point, zoom) // 中心点  展示级别
        this.map.enableScrollWheelZoom(true)
        // 注释。如果点击再创建标注就会出现点击点位无法显示堂框
        // let marker = new BMapGL.Marker(new_point) // 创建标注
        // this.map.addOverlay(marker) // 将标注添加到地图中
        this.map.panTo(new_point) // 地图中心显示
        this.infoWins(new_point, modalList) // 详情窗口
    }

    // 点击自动显示弹框
    infoWins (new_point, modalList) {
        // 创建图文信息窗口
        let sContent = this.htmlView(modalList)
        let A = ''
        A = modalList.cname ? modalList.cname : '--'
        let opts = {
            title: A, // 信息窗口标题
            message: ''
        }
        let infoWindow = new BMapGL.InfoWindow(sContent, opts)
        this.map.openInfoWindow(infoWindow, new_point)
    }
　　// 自定义Dom
    htmlView (modalList) {
        return `
        <div style="width:560px;padding-left:15px;margin-top:10px">
        <div style="overflow: hidden;width:100%">
            <div style="float:left;width:50%">
                <p>
                    <span class="box_left">厂站状态 :</span>
                    <span style="display: inline-block;">
                        <img
                            style="width: 15px;height:15px; margin-right: 5px; margin-bottom: 2px;"
                            src="${modalList.status ? (modalList.status === 's' ? '/static/img/map/xh.png' : '/static/img/map/xh2.png') : ''}"
                            alt=""
                        />
                        ${modalList.status ? (modalList.status === 's' ? '已入网' : '未入网') : '--'}
                    </span>
                </p>
                <p>
                    <span class="box_left">处水能力 :</span>
                    <span>${ modalList.capacity ? modalList.capacity + '吨/天' : '--' } </span>
                </p>
                
                <p>
                    <span class="box_left">工艺介绍 :</span>
                    <span>${ modalList.description ? modalList.description : '--' }</span>
                </p>
                <p>
                    <span class="box_left">水质标准 :</span>
                    <span>${ modalList.water_standard ? modalList.water_standard : '--' }</span>
                </p>
                <p>
                    <span class="box_left">工艺标准 :</span>
                    <span>${ modalList.technology_standard ? modalList.technology_standard : '--' }</span>
                </p>
            </div>
            <div style="float:left;width:50%"">
                <p>
                    <span class="box_left">项目周期 :</span>
                    <span>${ modalList.op_stime ? modalList.op_stime : '--' } - ${ modalList.op_etime ? modalList.op_etime : '--' }</span>
                </p>
                <p>
                    <span class="box_left">项目地址 :</span>
                    <span style="overflow: hidden;text-overflow: ellipsis; white-space: nowrap;">${ modalList.address ? modalList.address : '--' }</span>
                </p>
            </div>
        </div>
        </div>
        `
    }
}