element-ui 上传图片后标点（坐标）

<template>     <div class="mapForm">         <div class="left">             <el-form ref="form" :model="form" :rules="rules" label-width="160px">                 <el-form-item label="地图名称" prop="mapName">                     <el-input v-model="form.mapName" size="mini" clearable class="formInputClass"></el-input>                 </el-form-item>                 <el-form-item label="地图描述" prop="remarks">                     <el-input type="textarea" v-model="form.remarks" size="mini" clearable class="formInputClass"></el-input>                 </el-form-item>                 <el-form-item label="点位信息" prop="" v-if="mapList.length > 0">                     <div class="mapContent">                         <div v-for="(map,key) in mapList" :key="key">                             <div class="pointAbscissaOrdinate"><span>点位坐标{{key+1}}：{{map.abscissa}}-{{map.ordinate}}</span></div>                             <el-select v-model="mapList[key]['point']" placeholder="请选择" class="selectClass" @change="changePoint">                                 <el-option v-for="(item, key) in pointList" :key="key" :label="item.name" :value="item.point">                                 </el-option>                             </el-select>                         </div>                     </div>                 </el-form-item>                 <div class="btn">                     <el-button @click="checkParams" type="primary">提交</el-button>                 </div>             </el-form>         </div>         <div class="right" id="">             <div class="imgDiv" id="imgDiv" v-loading="loadStage">                 <img :src="fileSrc" width="1100" height="720" id="imgPainter" />                 <div class="marker" v-for="(item, key) in mapList" :key="key" :style="{top: item.ordinate+'px', 'left': item.abscissa+'px'}" @contextmenu.prevent="clearMarker(key)">                     {{key+1}}                     <div class="ponint">{{item.point}}</div>                 </div>             </div>             <div class="uploadBtn">                 <el-upload class="upload-demo" ref="upload" action="" :on-change="handleChange" :show-file-list="false" :on-remove="handleRemove" :auto-upload="false" style="display:inline-block;">                     <el-button slot="trigger" size="mini" type="primary">选取文件</el-button>                 </el-upload>                 <el-button @click="clearPic" type="danger">清除所有点位</el-button>             </div>             <div class="info"><i class="el-icon-info"></i>显示大小为1100px*720px</div>             <div class="info"><i class="el-icon-info"></i>图片框内鼠标左键标点</div>             <div class="info"><i class="el-icon-info"></i>图片框内鼠标右键已经标注的点删除该点</div>         </div>     </div> </template> <script> export default {     name: 'mapFormComponent',     data() {         return {             form: {                 mapName: "",             },             rules: {                 mapName: [                     { required: true, message: "请输入地图名称", trigger: "blur" },                 ],             },             fileList: [],             fileSrc: '',             pointList: [                 { name: "排放口1", point: "@FQ01" },                 { name: "排放口2", point: "@FQ02" },             ],             mapList: [],           //斑马线的数组             canBiaoZhu: true,  //是否可以进行标注             pointColor: 'red',   //点的颜色             pointSize: 20,       //点的大小             pointSelectList: {},             notifyId: {},             loadStage: false,         };     },     created() { },     mounted() {         // 绘点区域事件绑定         let _this = this;         if (document.getElementById('imgPainter')) {             document.getElementById('imgPainter').onmousedown = (e) => {                 e = e || window.event                 if (e.button !== 2) {       //判断是否右击                     if (this.canBiaoZhu && this.fileSrc != '') {    //判断是否可以进行标注  需上传图片                         var x = e.offsetX || e.layerX                         var y = e.offsetY || e.layerY                         this.mapList.push({                             id: this.mapList.length + 1,                             name: '',                             abscissa: x,                             ordinate: y,                         })                         // 设置变量                         // this.pointSelectList.$set(0);                         let key = `point`;                         _this.$set(this.mapList[this.mapList.length - 1], key, "")                     } else {                         //提示上传图片                         // 只显示一次                         if (_this.notifyId.id)                             _this.notifyId.close();                         this.notifyId = _this.$notify.error({                             title: '提示信息',                             message: '请先上传图片后再标点',                             showClose: true,                         });                     }                 } else {                     return false                 }             }         }         // 右键阻止         var oDiv1 = document.getElementById('imgDiv');         oDiv1.oncontextmenu = function (ev) {             var e = e || window.event;             //阻止冒泡             e.cancelBubble = true;             //阻止触发默认事件             e.returnValue = false;         }     },     methods: {         changePoint() {             /**point change */             this.$forceUpdate();         },         clearMarker(index) {             /**清除marker */             this.mapList.splice(index, 1);         },         handleChange(file, fileList) {             this.loadStage = true;             let fileName = file.name;             let regex = /(.jpg|.jpeg|.gif|.png|.bmp)$/;             if (regex.test(fileName.toLowerCase())) {                 this.fileSrc = URL.createObjectURL(file.raw)  // 获取URL                 console.log(this.fileSrc);             } else {                 this.$message.error('请选择图片文件');             }             this.loadStage = false;         },         clearPic() {             /**清除图片 */             this.mapList = [];         },         checkParams() {             /***              * 验证提交信息              */             this.$refs["form"].validate((valid) => {                 if (valid) {                     let params = this.form;                     this.submit(params);                 }             });         },         async submit(params) {             /**提交 */             let resp = await this.$api.companyApiList                 .addEditCompany(params);             if (resp.data.code != "error") {                 // 判断是否新增修改                 this.$notify.success({                     title: "提示",                     message: resp.data.msg,                     showClose: true,                 });                 let type = params.id && params.id != '' ? 'edit' : 'add';                 this.$emit("update", type);                 // 清空表单数据                 this.$refs.form.resetFields();             }         },     }, }; </script> <style scoped lang="less"> /**   表单样式  */ .mapForm {     display: flex;     padding: 10px;     border: 1px solid pink;     .left {         flex: 2;         border-right: 1px dashed pink;         margin-right: 4px;         .mapContent {             height: 700px;             overflow-y: auto;             .selectClass {                 margin: 0px 5px;             }             .pointAbscissaOrdinate {                 display: inline-block;                 width: 140px;             }         }     }     .right {         flex: 8;         // border: 1px solid pink;         max-width: 1100px;         .imgDiv {             position: relative;             height: 720px;             border: 2px solid cornflowerblue;             .marker {                 position: absolute;                 border-radius: 50%;                 z-index: 999;                 width: 20px;                 height: 20px;                 background-color: red;                 text-align: center;                 line-height: 20px;                 color: yellow;                 .ponint {                     display: block;                     position: absolute;                     left: 20px;                     top: 0px;                     font-size: 12px;                     color: blue;                 }             }             .marker:hover .ponint {                 display: block;             }         }         .info {             font-size: 12px;         }         .uploadBtn {             margin: 10px 0px;         }     }     .btn {         padding-left: 160px;     } } .formInputClass {     width: 200px; } </style>