From 1767c2c878ec1892ae560f81b32b5afdd2ceebfd Mon Sep 17 00:00:00 2001
From: guoshilong <123456>
Date: Tue, 27 Sep 2022 16:32:03 +0800
Subject: [PATCH] 小程序地图模式根据农场变化坐标

---
 src/components/leafletDraw.vue |  109 +++++++++++++++++++++++++++++++++---------------------
 1 files changed, 66 insertions(+), 43 deletions(-)

diff --git a/src/components/leafletDraw.vue b/src/components/leafletDraw.vue
index 116c71a..362032a 100644
--- a/src/components/leafletDraw.vue
+++ b/src/components/leafletDraw.vue
@@ -2,7 +2,7 @@
     <div ref="imageWrapper">
         <div class="btn-grounp">
             <button v-if="addShow" class="draw" @click="draw()">开始绘制</button>
-            <button v-if="!addShow" class="repeal" @click="repeal()">撤销</button>
+            <button v-if="!addShow&&repealShow" class="repeal" @click="repeal()">撤销</button>
             <button v-if="regionFull" class="save" @click="save()">保存</button>
         </div>
         <!-- <button class="disDraw" @click="disDraw()">关闭绘制</button> -->
@@ -24,6 +24,7 @@
             lng: "",
             lat: "",
             addShow: false,
+            repealShow:false,
 
             currentPolygons: [],
 
@@ -33,7 +34,8 @@
 
             imgUrl: "",
             file: "",
-            regionFull: false
+            regionFull: false,
+            tempBounds:""
         }
     },
     created () {
@@ -108,11 +110,11 @@
                 doubleClickZoom: false, // 禁用双击放大
                 attributionControl: false, // 移除右下角leaflet标识
             })
-            this.$L.tileLayer('http://t{s}.tianditu.gov.cn/DataServer?T=img_w&x={x}&y={y}&l={z}&tk=e9533f5acb2ac470b07f406a4d24b4f0', {
+            this.$L.tileLayer('https://t{s}.tianditu.gov.cn/DataServer?T=img_w&x={x}&y={y}&l={z}&tk=e9533f5acb2ac470b07f406a4d24b4f0', {
                 subdomains: [0, 1, 2, 3, 4, 5, 6, 7],
             }).addTo(this.map)
 
-            this.$L.tileLayer('http://t{s}.tianditu.gov.cn/DataServer?T=cva_w&x={x}&y={y}&l={z}&tk=e9533f5acb2ac470b07f406a4d24b4f0', {
+            this.$L.tileLayer('https://t{s}.tianditu.gov.cn/DataServer?T=cva_w&x={x}&y={y}&l={z}&tk=e9533f5acb2ac470b07f406a4d24b4f0', {
                 subdomains: [0, 1, 2, 3, 4, 5, 6, 7],
             }).addTo(this.map)
 
@@ -145,7 +147,7 @@
             this.complete.remove()
 
             this.addShow = true
-
+            this.repealShow = false
             this.regionFull = false
 
             // Object.values(this.map._layers).forEach(item => {
@@ -194,46 +196,66 @@
 
             var str = window.location.search.substring(1)
             var parmasObj = this.getUrlParams(str)
-            if(parmasObj.status){//后台截图
-                domtoimage.toPng(document.getElementById('map'), { width: 970, height: 400 })
-                .then( (dataUrl) => {
 
-                    var base64Image = dataUrl // 后台返回的base64数据
-                    var imgData = base64Image.replace(/[\r\n]/g, '') // 将回车换行换为空字符''
-
-                    var obj = {
-                        url:imgData,
-                        polygons:arr,
-                        area:area
+            if(parmasObj.status){//后台镜头移动
+                this.repealShow = false
+                this.regionFull = false
+                if(this.rectangleLayer.getBounds() != this.tempBounds){
+                    if(this.map.getZoom()>16){
+                        this.rectangleLayer.getBounds()._northEast.lng = this.rectangleLayer.getBounds()._northEast.lng+0.007
+                        this.tempBounds = this.rectangleLayer.getBounds()
+                        this.map.flyToBounds(this.rectangleLayer.getBounds(),{maxZoom:18}); 
+                    }else{
+                        this.rectangleLayer.getBounds()._northEast.lng = this.rectangleLayer.getBounds()._northEast.lng+0.06
+                        this.tempBounds = this.rectangleLayer.getBounds()
+                        this.map.flyToBounds(this.rectangleLayer.getBounds(),{maxZoom:18}); 
                     }
-                    window.parent.postMessage(obj,"*")
-                })
-                .catch(function (error) {
-                    console.error('oops, something went wrong!', error)
-                })  
+                }
+            }else{//小程序镜头移动
+                this.map.flyToBounds(this.rectangleLayer.getBounds(),{maxZoom:18}); 
+            }
 
+            setTimeout(() => {
+                if(parmasObj.status){//后台截图
+                    domtoimage.toPng(document.getElementById('map'), { width: 450, height: 450 })
+                    .then( (dataUrl) => {
 
-            }else{//小程序截图
-                domtoimage.toPng(document.getElementById('map'), { width: 375, height: 750 })
-                .then( (dataUrl) => {
+                        var base64Image = dataUrl // 后台返回的base64数据
+                        var imgData = base64Image.replace(/[\r\n]/g, '') // 将回车换行换为空字符''
 
-                    var base64Image = dataUrl // 后台返回的base64数据
-                    var imgData = base64Image.replace(/[\r\n]/g, '') // 将回车换行换为空字符''
-                    wx.miniProgram.postMessage({
-                        data: { polygons: arr, area, bgUrl: imgData },
+                        var obj = {
+                            url:imgData,
+                            polygons:arr,
+                            area:area
+                        }
+                        window.parent.postMessage(obj,"*")
                     })
+                    .catch(function (error) {
+                        console.error('oops, something went wrong!', error)
+                    }) 
+                    
+                    setTimeout(() => {
+                        this.repealShow = true
+                        this.regionFull = true
+                    }, 1000);
 
-                    wx.miniProgram.navigateBack()
-
-
-
-                })
-                .catch(function (error) {
-                    console.error('oops, something went wrong!', error)
-                }) 
-            }   
-
+                }else{//小程序截图
+                    domtoimage.toPng(document.getElementById('map'), { width: 375, height: 600 })
+                    .then( (dataUrl) => {
+                        var base64Image = dataUrl // 后台返回的base64数据
+                        var imgData = base64Image.replace(/[\r\n]/g, '') // 将回车换行换为空字符''
+                        wx.miniProgram.postMessage({
+                            data: { polygons: arr, area, bgUrl: imgData },
+                        })
+                        wx.miniProgram.navigateBack()
+                    })
+                    .catch(function (error) {
+                        console.error('oops, something went wrong!', error)
+                    }) 
+                }   
+            }, 1000);
         },
+
         getUrlParams(urlParams) {
             var obj = {}
             var arrList = urlParams.split('&')
@@ -259,7 +281,7 @@
             this.map.on('pm:drawstart', ({ workingLayer }) => {
 
                 this.addShow = false
-
+                this.repealShow = false
                 that.rectangleLayer = workingLayer
 
                 console.log(workingLayer, 5465456)
@@ -276,7 +298,7 @@
             })
 
             this.map.on("pm:create", e => {
-
+                that.repealShow = true
                 that.regionFull = true
 
                 // 绘制坐标
@@ -314,8 +336,6 @@
                 let area = this.$turf.area(this.$turf.polygon([arr]))
 
                 window.parent.postMessage(area,"*")
-
-                this.map.flyToBounds(this.rectangleLayer.getBounds()); 
 
             })
         },
@@ -378,9 +398,11 @@
     .repeal {
         // width: 100px;
         // height: 44px;
+
         border-radius: 22px;
         border: none;
-
+        color: #000;
+        background: #fff;
         width: 150px;
         height: 66px;
         font-size: 30px;
@@ -392,7 +414,8 @@
         // height: 44px;
         border-radius: 22px;
         border: none;
-
+        color: #000;
+        background: #fff;
         width: 150px;
         height: 66px;
         font-size: 30px;

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