4 changed files with 4 additions and 364 deletions
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<!doctype html> |
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<html lang="zh"> |
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<head> |
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<meta charset="utf-8" /> |
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<meta name="viewport" content="width=device-width, initial-scale=1.0" /> |
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<title>轨迹点实现</title> |
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<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/ol/ol.css" /> |
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<style> |
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#map { |
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width: 100%; |
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height: 500px; |
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} |
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#controls { |
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padding: 10px; |
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background: #f5f5f5; |
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} |
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#info-panel { |
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padding: 10px; |
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background: white; |
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border: 1px solid #ddd; |
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} |
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.timeline { |
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display: flex; |
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overflow-x: auto; |
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padding: 10px 0; |
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} |
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.timeline-marker { |
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padding: 5px 10px; |
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margin: 0 5px; |
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background: #1890ff; |
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color: white; |
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border-radius: 3px; |
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cursor: pointer; |
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} |
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</style> |
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</head> |
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<body> |
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<div id="controls"> |
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<button id="btn-play">播放轨迹</button> |
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<button id="btn-pause">暂停</button> |
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<div id="info-panel">轨迹信息将显示在这里</div> |
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</div> |
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<div id="map"></div> |
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<div class="timeline" id="timeline"></div> |
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<script src="https://unpkg.com/ol@9.2.4/dist/ol.js"></script> |
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<script> |
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// 轨迹数据（示例数据 - 北京到天津的轨迹） |
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const trackData = [ |
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{ time: '09:00', lng: 116.404, lat: 39.915, speed: 60, name: '起点' }, |
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{ time: '09:15', lng: 116.704, lat: 39.915, speed: 65, name: '大兴区' }, |
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{ time: '09:30', lng: 116.904, lat: 39.815, speed: 70, name: '廊坊' }, |
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{ time: '09:45', lng: 117.204, lat: 39.715, speed: 75, name: '武清区' }, |
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{ time: '10:00', lng: 117.404, lat: 39.615, speed: 80, name: '天津市区' } |
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] |
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|
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// 全局变量 |
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let map, trackSource, trackPlayer |
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|
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// 初始化地图 |
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function initMap() { |
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const source = new ol.source.XYZ({ |
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url: 'http://qtbj.icpcdev.site/roadmap/{z}/{x}/{y}.png', |
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maxZoom: 16, |
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minZoom: 10 |
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}) |
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|
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map = new ol.Map({ |
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target: 'map', |
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layers: [ |
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new ol.layer.Tile({ |
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source: source |
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}) |
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], |
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view: new ol.View({ |
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center: ol.proj.fromLonLat([116.404, 39.915]), |
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zoom: 10 |
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}) |
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}) |
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|
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// 创建轨迹图层 |
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trackSource = new ol.source.Vector() |
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const trackLayer = new ol.layer.Vector({ |
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source: trackSource, |
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style: function (feature) { |
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const type = feature.get('type') |
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if (type === 'track-line') { |
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return new ol.style.Style({ |
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stroke: new ol.style.Stroke({ |
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color: '#1890FF', |
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width: 4, |
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lineDash: [5, 5] |
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}) |
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}) |
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} else if (type === 'track-point') { |
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const speed = feature.get('speed') |
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return new ol.style.Style({ |
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image: new ol.style.Circle({ |
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radius: 6, |
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fill: new ol.style.Fill({ |
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color: speed > 70 ? '#FF4D4F' : '#52C41A' |
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}), |
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stroke: new ol.style.Stroke({ |
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color: 'white', |
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width: 2 |
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}) |
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}), |
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text: new ol.style.Text({ |
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text: feature.get('name') || feature.get('time'), |
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offsetY: -15, |
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fill: new ol.style.Fill({ color: '#000' }), |
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stroke: new ol.style.Stroke({ color: '#fff', width: 3 }) |
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}) |
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}) |
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} else if (type === 'moving-point') { |
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return new ol.style.Style({ |
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image: new ol.style.Circle({ |
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radius: 10, |
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fill: new ol.style.Fill({ color: '#FAAD14' }), |
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stroke: new ol.style.Stroke({ |
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color: 'white', |
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width: 3 |
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}) |
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}) |
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}) |
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} |
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} |
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}) |
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|
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map.addLayer(trackLayer) |
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} |
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|
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// 轨迹播放器类 |
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class TrackPlayer { |
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constructor(trackData, source, map) { |
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this.trackData = trackData |
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this.source = source |
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this.map = map |
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this.currentIndex = 0 |
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this.isPlaying = false |
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this.animationId = null |
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this.movingPoint = null |
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|
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this.initMovingPoint() |
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this.createTimeline() |
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} |
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|
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// 初始化移动点 |
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initMovingPoint() { |
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this.movingPoint = new ol.Feature({ |
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geometry: new ol.geom.Point( |
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ol.proj.fromLonLat([this.trackData[0].lng, this.trackData[0].lat]) |
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), |
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type: 'moving-point' |
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}) |
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this.source.addFeature(this.movingPoint) |
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} |
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|
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// 创建时间轴 |
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createTimeline() { |
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const timeline = document.getElementById('timeline') |
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timeline.innerHTML = '' |
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|
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this.trackData.forEach((point, index) => { |
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const pointElement = document.createElement('div') |
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pointElement.className = 'timeline-point' |
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pointElement.innerHTML = ` |
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<div>${point.time}</div> |
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<div>${point.name}</div> |
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` |
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pointElement.addEventListener('click', () => { |
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this.jumpToPoint(index) |
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}) |
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timeline.appendChild(pointElement) |
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}) |
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} |
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|
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// 播放轨迹 |
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play() { |
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if (this.isPlaying) return |
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this.isPlaying = true |
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this.currentIndex = 0 |
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this.updateTimeline() |
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this.animate() |
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} |
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|
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// 暂停播放 |
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pause() { |
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this.isPlaying = false |
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if (this.animationId) { |
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cancelAnimationFrame(this.animationId) |
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} |
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} |
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|
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// 跳转到指定点 |
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jumpToPoint(index) { |
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this.pause() |
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this.currentIndex = Math.max(0, Math.min(index, this.trackData.length - 1)) |
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this.updateMovingPoint() |
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this.updateTimeline() |
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} |
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|
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// 动画循环 |
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animate() { |
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if (!this.isPlaying || this.currentIndex >= this.trackData.length - 1) { |
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this.isPlaying = false |
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this.updateInfo('轨迹播放完成') |
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return |
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} |
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|
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const start = this.trackData[this.currentIndex] |
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const end = this.trackData[this.currentIndex + 1] |
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this.moveToNextPoint(start, end, 0, 1500) // 1.5秒移动到下一点 |
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} |
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|
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// 移动到下一点 |
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moveToNextPoint(start, end, progress, duration) { |
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if (!this.isPlaying) return |
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|
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if (progress >= 1) { |
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this.currentIndex++ |
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this.updateTimeline() |
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this.animate() |
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return |
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} |
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|
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// 计算插值坐标 |
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const lng = start.lng + (end.lng - start.lng) * progress |
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const lat = start.lat + (end.lat - start.lat) * progress |
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|
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// 更新移动点位置 |
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this.movingPoint.getGeometry().setCoordinates(ol.proj.fromLonLat([lng, lat])) |
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|
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// 更新信息面板 |
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this.updateInfo(end, progress) |
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|
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// 平滑跟随移动点 |
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if (progress > 0.3) { |
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// 延迟一点开始跟随 |
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this.map.getView().animate({ |
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center: ol.proj.fromLonLat([lng, lat]), |
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duration: 200, |
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easing: ol.easing.linear |
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}) |
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} |
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|
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// 继续动画 |
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progress += 16 / duration // 基于60fps |
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this.animationId = requestAnimationFrame(() => { |
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this.moveToNextPoint(start, end, progress, duration) |
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}) |
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} |
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|
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// 更新移动点位置（直接跳转） |
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updateMovingPoint() { |
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const point = this.trackData[this.currentIndex] |
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this.movingPoint.getGeometry().setCoordinates(ol.proj.fromLonLat([point.lng, point.lat])) |
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|
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this.map.getView().animate({ |
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center: ol.proj.fromLonLat([point.lng, point.lat]), |
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zoom: 14, |
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duration: 500 |
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}) |
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} |
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|
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// 更新信息面板 |
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updateInfo(point, progress) { |
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const progressText = progress ? `进度: ${Math.round(progress * 100)}%` : '' |
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document.getElementById('info-panel').innerHTML = ` |
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<div><strong>当前位置:</strong> ${point.name}</div> |
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<div><strong>时间:</strong> ${point.time}</div> |
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<div><strong>速度:</strong> ${point.speed} km/h</div> |
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<div><strong>${progressText}</strong></div> |
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` |
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} |
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|
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// 更新时间轴高亮 |
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updateTimeline() { |
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const points = document.querySelectorAll('.timeline-point') |
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points.forEach((point, index) => { |
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point.classList.toggle('active', index === this.currentIndex) |
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}) |
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} |
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|
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// 重置轨迹 |
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reset() { |
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this.pause() |
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this.currentIndex = 0 |
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this.updateMovingPoint() |
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this.updateTimeline() |
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this.updateInfo(this.trackData[0], 0) |
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} |
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} |
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|
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// 添加轨迹到地图 |
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function addTrackToMap() { |
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// 清空现有轨迹 |
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trackSource.clear() |
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|
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// 添加轨迹点 |
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trackData.forEach((point, index) => { |
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const feature = new ol.Feature({ |
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geometry: new ol.geom.Point(ol.proj.fromLonLat([point.lng, point.lat])), |
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type: 'track-point', |
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time: point.time, |
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speed: point.speed, |
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name: point.name, |
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index: index |
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}) |
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trackSource.addFeature(feature) |
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}) |
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|
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// 添加轨迹线 |
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const lineCoords = trackData.map((p) => ol.proj.fromLonLat([p.lng, p.lat])) |
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const lineFeature = new ol.Feature({ |
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geometry: new ol.geom.LineString(lineCoords), |
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type: 'track-line' |
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}) |
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trackSource.addFeature(lineFeature) |
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|
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// 自适应缩放 |
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const extent = trackSource.getExtent() |
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map.getView().fit(extent, { |
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padding: [50, 50, 50, 50], |
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duration: 1000 |
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}) |
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|
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// 初始化播放器 |
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trackPlayer = new TrackPlayer(trackData, trackSource, map) |
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} |
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|
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// 页面加载完成后初始化 |
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document.addEventListener('DOMContentLoaded', function () { |
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// 初始化地图 |
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initMap() |
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|
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// 绑定按钮事件 |
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// document.getElementById('btn-add-track').addEventListener('click', addTrackToMap); |
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document.getElementById('btn-play').addEventListener('click', function () { |
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if (trackPlayer) trackPlayer.play() |
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}) |
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|
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// document.getElementById('btn-play') |
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// document.getElementById('btn-pause').addEventListener('click', function() { |
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// if (trackPlayer) trackPlayer.pause(); |
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// }); |
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// document.getElementById('btn-reset').addEventListener('click', function() { |
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// if (trackPlayer) trackPlayer.reset(); |
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// }); |
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// document.getElementById('btn-clear').addEventListener('click', function() { |
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// trackSource.clear(); |
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// document.getElementById('timeline').innerHTML = ''; |
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// document.getElementById('info-panel').innerHTML = '轨迹已清空'; |
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// }); |
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// trackPlayer.play(); |
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// 页面加载后自动添加示例轨迹 |
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setTimeout(addTrackToMap, 1500) |
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}) |
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</script> |
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</body> |
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</html> |
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