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361 lines
11 KiB
361 lines
11 KiB
6 days ago
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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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// 全局变量
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let map, trackSource, trackPlayer
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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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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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// 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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map.addLayer(trackLayer)
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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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this.initMovingPoint()
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this.createTimeline()
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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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// 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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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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// 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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// 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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// 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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// 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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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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// 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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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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// 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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// 更新移动点位置
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this.movingPoint.getGeometry().setCoordinates(ol.proj.fromLonLat([lng, lat]))
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// 更新信息面板
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this.updateInfo(end, progress)
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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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// 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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// 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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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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// 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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// 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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// 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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// 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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// 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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// 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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// 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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// 初始化播放器
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trackPlayer = new TrackPlayer(trackData, trackSource, map)
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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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// 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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// 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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