Vue中使用Openlayer實現載入動畫效果
阿新 • • 發佈:2021-09-01
注意:實現動畫時不能有scoped!!!!
通過gif
<template> <div class="test"> <div id="map" ref="map" style="width: 100vw; height: 100vh"></div> </div> </template> <script> import "ol/ol."; import { Map,View,Overlay } from "ol"; import TileLayer from "ol/layer/Tile"; import OSM from "ol/source/OSM"; export default { name: "gif",data() { return { map: {},overlay: {},markerPoint: {},geoonData: { type: "FeatureCollection",features: [ { type: "Feature",properties: { title: "警報1",},geometry: { type: "Point",coordinates: [91.48879670091165,37.83814884701121],{ type: "Feature",properties: { title: "警報2",coordinates: [99.19515576149941,26.713646654711134],properties: { title: "警報3",coordinates: [123.74363825288785,44.363694825734726],],}; },mounted() { this.initMap(); this.addGif(); },methods: { // 初始化地圖 initMap() { this.map = new Map({ target: "map",layers: [ new TileLayer({ source: new OSM(),}),view: new View({ projection: "EPSG:4326",center: [104.912777,34.730746],zoom: 4.5,}); },// 使用Overlay新增GIF動態圖示點位資訊 addGif() { let coordinates = this.getCoordinatesByGeojson(this.geojsonData); for (const i in coordinates) { let gif_span = document.createElement("span"); document.documentElement.appendChild(gif_span); this.$nextTick(() => { this.markerPoint = new Overlay({ position: coordinates[i],element: gif_span,positioning: "center-center",}); this.map.addOverlay(this.markerPoint); }); } },//根據geojson資料獲取座標集 getCoordinatesByGeojson(geojsonData) { let coordinates = []; geojsonData.features.map((feature) => { coordinates = [...coordinates,feature.geometry.coordinates]; }); return coordinates; },}; </script> <style lang='scss' > .test { span { display: inline-block; width: 80px; height: 80px; border-radius: 50%; background: url("https://smart-garden-manage.oss-cn-chengdu.aliyuncs.com/gif.gif") no-repeat; background-size: 80px 80px; } } </style>
通過關鍵幀@keyframes
<template> <div class="test"> <div id="map" ref="map" style="width: 100vw; height: 100vh"></div> </div> </template> <script> import "ol/ol.css"; import { Map,point_overlay: {},geojsonData: { type: "FeatureCollection",// 使用Overlay新增GIF動態圖示點位資訊 addGif() { let coordinates = this.getCoordinatesByGeojson(this.geojsonData); for (const i in coordinates) { let point_div = document.createElement("div"); point_div.className = "css_animation"; point_div.id = `coordinate_${i}`; document.documentElement.appendChild(point_div); this.$nextTick(() => { this.point_overlay = new Overlay({ position: coordinates[i],element: point_div,positioning: "center-center",}); this.map.addOverlay(this.point_overlay); }); } },}; </script> <style lang='scss' > .test { .css_animation { height: 50px; width: 50px; border-radius: 50%; background: rgba(255,0.9); box-shadow: inset 0 0 8px red; transform: scale(0); animation: myfirst 3s; animation-iteration-count: infinite; //無限迴圈 } @keyframes myfirst { to { transform: scale(2); background: rgba(0,0); box-shadow: inset 0 0 50px rgba(255,0); } } } </style>
既可載入動畫,又可獲取動畫所在要素點的屬性
注意:該程式碼存在問題。目前只能要麼點選獲取屬性,要麼展示動畫,而不能同時存在,還有待優化!
<template> <div class="test"> <div id="map" ref="map" style="width: 100vw; height: 100vh"></div> <div id="popup" style=" position: absolute; background-color: rgba(47,57,90,0.678); bottom: 20px; left: 30px; border: 1px solid white; www.cppcns.com padding: 10px; width: 60px; " > {{ properties.title }} </div> </div> </template> <script> import "ol/ol.css"; import { Map,Overlay } from "ol"; import { OSM,Vector as VectorSource } from "ol/source"; import { Vector as VectorLayer,Tile as TileLayer } from "ol/layer"; import GeoJSON from "ol/format/GeoJSON"; import Select from "ol/interaction/Select"; import { altKeyOnly,click,pointerMove } from "ol/events/condition"; import { Fill,Stroke,Style,Circle } from "ol/style"; export default { name: "gif",layer: {},coordinatZjSOfjPCxnes: [91.48879670091165,select: {},properties: { title: "",mounted() { this.initMap(); // this.addGif();//註釋掉後,點選可獲取feature屬性 },methods: { // 初始化地圖 initMap() { this.layer = new VectorLayer({ source: new VectorSource({ features: new GeoJSON().readFeatures(this.geojsonData),}); this.map = new Map({ target: "map",this.layer,}); this.select = new Select({ condition: click,//單擊選擇 }); this.map.addInteraction(this.select); let overlayer_popup = new Overlay({ element: document.getElementById("popup"),//一定要加上,否則會有偏移 }); this.select.on("select",(e) => { let coordinate = e.mapBrowserEvent.coordinate; //獲取選擇的座標 let featureSelect = e.selected[0]; //選中的feature要素 if (e.selected.length !== 0) { overlayer_popup.setPosition(coordinate); this.map.addOverlay(overlayer_popup); } else { overlayer_popup.setPosition(""); } if (featureSelect) { this.properties = featureSelect.getProperties(); //獲取當前要素的所有屬性 //設定選中的樣式 featureSelect.setStyle( new Style({ image: new Circle({ radius: 10,www.cppcns.com fill: new Fill({ //向量圖層填充顏色,以及透明度 color: "rgba(255,0.5)",stroke: new Stroke({ //邊界樣式 color: "rgba(100,209,0.6)",width: 3,客棧 }),}) ); } }); // 設定滑鼠劃過向量要素的樣式 this.map.on("pointermove",(e) => { const isHover = this.map.hasFeatureAtPixel(e.pixel); this.map.getTargetElement().style.cursor = isHover ? "pointer" : ""; }); },}; </script> <style lang='scss' scoped> .test { } </style> <style lang='scss' > .test { .css_animation { height: 50px; width: 50px; border-radius: 50%; background: rgba(255,0); } } } </style>
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