// 大数据展示 async queryBigData() { this.cancel && this.cancel(); const CancelToken = axios.CancelToken; this.isLoad = true; this.ajaxBasicFinished = false; if (this.pointLayer) { this.scene.removeLayer(this.pointLayer); }; this.scene.removeImage('lmapostIcon'); let image = new Image(40, 40); image.src = `${this.$__webpack_public_path__}/static/images/map/${this.objectName}.svg`; await this.scene.addImage('lmapostIcon', image); const data = { Token: 'fdasfn8934r5nt9785o43mo#4K9', Belong: this.deviceBelong, ObjectName: this.objectName, Ucs: 'WGS84', }; const options = { method: "POST", headers: { "content-type": "application/json" }, data: data, url: `${BASE_CONFIG.BASE_API3}/get`, cancelToken: new CancelToken(c => { this.cancel = c; }), }; axios(options) .then((response) => { let data = response.data.data; if(data && data.length > 0) { let geojson = { type: 'FeatureCollection', features: [] }; for (let i = 0; i < data.length; i++) { let item = data[i]; // 上万条数据 let feature = { type: 'feature', geometry: { type: 'Point', coordinates: [] }, properties: { name: item.ObjectName } }; let longreg = /^(\-|\+)?(((\d|[1-9]\d|1[0-7]\d|0{1,3})\.\d{0,6})|(\d|[1-9]\d|1[0-7]\d|0{1,3})|180\.0{0,6}|180)$/; let latreg = /^(\-|\+)?([0-8]?\d{1}\.\d{0,6}|90\.0{0,6}|[0-8]?\d{1}|90)$/; let flag1 = longreg.test( this.decimalProcess(item.lnglat[0]) ); let flag2 = latreg.test( this.decimalProcess(item.lnglat[1]) ); if(flag1 && flag2){ feature.geometry.coordinates = [this.decimalProcess(item.lnglat[0]), this.decimalProcess(item.lnglat[1])]; geojson.features.push(feature); } }; let bbox = this.$turf.bbox(geojson); this.scene.fitBounds(bbox); this.isLoad = false; this.pointLayer = new PointLayer({ blend: 'normal', zIndex: 111 }) .source(geojson) .shape('lmapostIcon') .size(15) this.scene.addLayer(this.pointLayer); this.isNoData = false; this.ajaxBasicFinished = true; } else { this.isLoad = false; this.ajaxBasicFinished = true; this.isNoData = true; this.$message({ message: '暂无设备', type: "warning", }); } }) .catch(error => { this.isLoad = false; console.log(error); }); },
标签:false,取消,type,scene,item,ajax,let,data,上次 From: https://www.cnblogs.com/guwufeiyang/p/18412638