后台完成绘图后位移

guoshilong

2022-09-06 f9d3a259d075beffd21abfdc58345ff8588f3c2d

 src/components/leafletDraw.vue

@@ -33,7 +33,8 @@

            imgUrl: "",
            file: "",
            regionFull: false
            regionFull: false,
            tempBounds:""
        }
    },
    created () {
@@ -194,46 +195,60 @@

            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
                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)
                    }) 
                    

                    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)
                    }) 
                }   
            }, 1500);
        },

        getUrlParams(urlParams) {
            var obj = {}
            var arrList = urlParams.split('&')
@@ -314,8 +329,6 @@
                let area = this.$turf.area(this.$turf.polygon([arr]))

                window.parent.postMessage(area,"*")

                this.map.flyToBounds(this.rectangleLayer.getBounds()); 

            })
        },