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index.html
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index.html
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<!DOCTYPE html>
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<html lang="zh-CN">
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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>Cesium 多资源整合加载平台</title>
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<!-- 引入Cesium库（使用1.116稳定版本） -->
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<script src="https://cesium.com/downloads/cesiumjs/releases/1.116/Build/Cesium/Cesium.js"></script>
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<link href="https://cesium.com/downloads/cesiumjs/releases/1.116/Build/Cesium/Widgets/widgets.css" rel="stylesheet">
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<style>
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/* 基础样式重置 */
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html, body, #cesiumContainer {
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width: 100%;
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height: 100%;
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margin: 0;
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padding: 0;
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overflow: hidden;
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}
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/* 控制面板样式 */
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.control-panel {
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position: absolute;
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top: 20px;
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left: 20px;
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background: rgba(255, 255, 255, 0.95);
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padding: 20px;
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border-radius: 8px;
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box-shadow: 0 3px 15px rgba(0, 0, 0, 0.15);
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z-index: 100;
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width: 420px;
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}
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/* 表单标题 */
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.panel-title {
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margin: 0 0 15px;
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font-size: 18px;
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color: #2c3e50;
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border-bottom: 1px solid #eee;
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padding-bottom: 8px;
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}
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/* 表单分组样式 */
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.form-group {
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margin-bottom: 15px;
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}
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.form-group label {
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display: block;
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margin-bottom: 6px;
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font-weight: 500;
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color: #34495e;
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}
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/* 输入框、选择框样式 */
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.form-control {
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width: 100%;
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padding: 10px;
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border: 1px solid #ddd;
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border-radius: 4px;
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font-size: 14px;
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box-sizing: border-box;
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transition: border-color 0.3s;
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}
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.form-control:focus {
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outline: none;
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border-color: #0070f3;
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box-shadow: 0 0 0 2px rgba(0, 112, 243, 0.1);
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}
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/* 经纬度输入行布局 */
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.coord-group {
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display: flex;
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gap: 10px;
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}
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.coord-group .form-group {
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flex: 1;
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}
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/* 按钮样式 */
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.btn-group {
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display: flex;
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gap: 10px;
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margin-top: 10px;
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}
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.btn {
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padding: 10px 16px;
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border: none;
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border-radius: 4px;
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font-size: 14px;
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cursor: pointer;
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transition: background-color 0.3s;
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}
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.btn-primary {
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background-color: #0070f3;
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color: white;
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}
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.btn-primary:hover {
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background-color: #0051aa;
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}
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.btn-locate {
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background-color: #22c55e;
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color: white;
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}
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.btn-locate:hover {
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background-color: #16a34a;
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}
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.btn-clear {
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background-color: #f37000;
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color: white;
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}
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.btn-clear:hover {
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background-color: #d96000;
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}
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/* 状态提示样式 */
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.status {
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margin-top: 12px;
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padding: 10px;
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border-radius: 4px;
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font-size: 14px;
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display: none; /* 默认隐藏 */
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}
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.status-success {
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background-color: #e8f5e9;
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color: #2e7d32;
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display: block; /* 成功时显示 */
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}
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.status-error {
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background-color: #fdecea;
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color: #d32f2f;
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display: block; /* 错误时显示 */
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}
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/* 鼠标经纬度提示框样式 */
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.latlng-tooltip {
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position: absolute;
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background: rgba(0, 0, 0, 0.8);
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color: white;
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padding: 6px 10px;
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border-radius: 4px;
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font-size: 12px;
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pointer-events: none; /* 避免遮挡鼠标事件 */
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z-index: 1000; /* 确保在最上层显示 */
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opacity: 0; /* 默认透明 */
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transition: opacity 0.2s; /* 淡入淡出效果 */
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white-space: nowrap; /* 防止文本换行 */
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}
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</style>
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</head>
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<body>
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<!-- Cesium 容器 -->
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<div id="cesiumContainer"></div>
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<!-- 鼠标经纬度提示框 -->
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<div id="latlngTooltip" class="latlng-tooltip"></div>
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<!-- 控制表单面板 -->
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<div class="control-panel">
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<h3 class="panel-title">Cesium 资源加载与定位</h3>
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<!-- 基础地址输入项 -->
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<div class="form-group">
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<label for="baseUrl">基础地址（服务器根地址）</label>
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<input type="text" id="baseUrl" class="form-control"
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placeholder="例: http://192.168.110.25:8848"
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value="http://192.168.110.25:8848">
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</div>
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<!-- 资源地址输入 -->
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<div class="form-group">
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<label for="resourceUrl">资源相对路径</label>
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<input type="text" id="resourceUrl" class="form-control"
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placeholder="例: 1.倾斜模型: data/clt/.../tileset.json 2.高程: terrain_pak 3.瓦片: tiles/{z}/{x}/{y}.png"
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value="/data/pak/8870a7a573dc621d7347457a5497df3b/{z}/{x}/{y}.png">
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</div>
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<!-- 经纬度定位输入 -->
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<div class="coord-group">
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<div class="form-group">
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<label for="longitude">经度</label>
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<input type="text" id="longitude" class="form-control"
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placeholder="范围: -180 ~ 180" value="106.253200504443">
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</div>
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<div class="form-group">
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<label for="latitude">纬度</label>
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<input type="text" id="latitude" class="form-control"
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placeholder="范围: -90 ~ 90" value="29.8500521523625">
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</div>
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</div>
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<!-- 操作按钮组 -->
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<div class="btn-group">
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<button id="loadBtn" class="btn btn-primary">加载资源</button>
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<button id="locateBtn" class="btn btn-locate">定位到经纬度</button>
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<button id="clearBtn" class="btn btn-clear">清除所有资源</button>
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</div>
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<!-- 状态提示 -->
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<div id="status" class="status"></div>
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</div>
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<script>
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// 1. 初始化Cesium核心配置
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Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiI5MGU0NGMwYS00ZDBkLTQzMDItYjc5Zi0zYTM1NDcwZGVjMmEiLCJpZCI6MTU1MTk5LCJpYXQiOjE2ODk4MTgzNTF9.V_eZ5KlAI9qmxsDivT6pMC3Pq6qLk0mXpBoe5C0Mm4g';
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// 2. 创建Cesium Viewer（基础配置）
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const viewer = new Cesium.Viewer('cesiumContainer', {
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animation: false,
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timeline: false,
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vrButton: false,
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infoBox: false,
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selectionIndicator: false,
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homeButton: true,
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sceneModePicker: true,
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navigationHelpButton: true,
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fullscreenButton: true,
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imageryProvider: false
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});
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// 隐藏Cesium版权信息
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viewer._cesiumWidget._creditContainer.style.display = 'none';
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// 3. 全局变量
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let loadedResource = { type: null, instance: null };
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const statusEl = document.getElementById('status');
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const latlngTooltip = document.getElementById('latlngTooltip');
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// 4. 工具函数: 拼接资源URL
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function getFullResourceUrl() {
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const baseUrl = document.getElementById('baseUrl').value.trim();
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const resourceUrl = document.getElementById('resourceUrl').value.trim();
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if (!resourceUrl) return '';
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if (!baseUrl) return resourceUrl;
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const baseUrlWithSlash = baseUrl.endsWith('/') ? baseUrl : `${baseUrl}/`;
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const cleanResourceUrl = resourceUrl.startsWith('/') ? resourceUrl.slice(1) : resourceUrl;
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return `${baseUrlWithSlash}${cleanResourceUrl}`;
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}
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// 5. 工具函数: 识别资源类型
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function getResourceTypeByUrl(fullUrl) {
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const lowerUrl = fullUrl.toLowerCase();
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if (lowerUrl.includes('.png') || lowerUrl.includes('.jpg')) return 'imagery';
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if (lowerUrl.includes('tileset.json')) return 'tileset';
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if (lowerUrl.includes('pak')) return 'terrain';
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return null;
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}
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// 6. 状态提示函数
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function showStatus(message, isSuccess = true) {
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statusEl.textContent = message;
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statusEl.className = 'status';
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statusEl.classList.add(isSuccess ? 'status-success' : 'status-error');
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if (isSuccess) {
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setTimeout(() => {
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statusEl.classList.remove('status-success');
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statusEl.style.display = 'none';
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}, 5000);
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}
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}
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// 7. 清除资源函数
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function clearLoadedResource() {
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if (!loadedResource.instance) return;
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switch (loadedResource.type) {
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case 'tileset':
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viewer.scene.primitives.remove(loadedResource.instance);
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showStatus('倾斜模型已清除');
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break;
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case 'imagery':
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viewer.imageryLayers.remove(loadedResource.instance);
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showStatus('二维瓦片已清除');
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break;
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case 'terrain':
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viewer.terrainProvider = new Cesium.EllipsoidTerrainProvider();
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viewer.scene.globe.depthTestAgainstTerrain = false;
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showStatus('高程模型已清除');
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break;
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}
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loadedResource = { type: null, instance: null };
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}
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// 8. 资源加载函数
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async function loadResource() {
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const fullUrl = getFullResourceUrl();
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if (!fullUrl) {
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showStatus('请输入有效的资源相对路径', false);
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return;
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}
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const resourceType = getResourceTypeByUrl(fullUrl);
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if (!resourceType) {
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showStatus('无法识别资源类型、请检查路径是否包含tileset.json/pak/.png/.jpg', false);
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return;
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}
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clearLoadedResource();
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try {
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let instance;
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switch (resourceType) {
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case 'tileset':
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showStatus('正在加载倾斜模型...');
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instance = await Cesium.Cesium3DTileset.fromUrl(fullUrl);
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viewer.scene.primitives.add(instance);
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viewer.zoomTo(instance);
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showStatus('倾斜模型加载成功');
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break;
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case 'imagery':
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showStatus('正在加载二维瓦片...');
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const fileExtension = fullUrl.toLowerCase().includes('.png') ? 'png' : 'jpg';
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const provider = new Cesium.UrlTemplateImageryProvider({
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url: fullUrl,
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fileExtension: fileExtension,
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minimumLevel: 0,
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maximumLevel: 18,
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credit: '自定义二维瓦片'
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});
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instance = viewer.imageryLayers.addImageryProvider(provider);
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showStatus('二维瓦片加载成功');
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break;
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case 'terrain':
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showStatus('正在加载高程模型...');
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instance = await Cesium.CesiumTerrainProvider.fromUrl(fullUrl);
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viewer.terrainProvider = instance;
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viewer.scene.globe.depthTestAgainstTerrain = true;
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showStatus('高程模型加载成功');
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break;
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}
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loadedResource = { type: resourceType, instance: instance };
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} catch (error) {
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console.error('资源加载失败: ', error);
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const errorMsg = error.message.includes('404') ? '资源地址不存在（404）' :
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error.message.includes('CORS') ? '跨域访问被拒绝（CORS）' :
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'服务器连接失败或资源格式错误';
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showStatus(`资源加载失败: ${errorMsg}`, false);
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}
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}
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// 9. 经纬度定位函数
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function flyToCoordinate() {
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const lng = parseFloat(document.getElementById('longitude').value.trim());
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const lat = parseFloat(document.getElementById('latitude').value.trim());
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if (isNaN(lng) || isNaN(lat) || lng < -180 || lng > 180 || lat < -90 || lat > 90) {
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showStatus('请输入有效的经纬度（经度: -180~180、纬度: -90~90）', false);
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return;
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}
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viewer.camera.flyTo({
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destination: Cesium.Cartesian3.fromDegrees(lng, lat, 10000),
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duration: 2,
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orientation: {
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heading: Cesium.Math.toRadians(0),
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pitch: Cesium.Math.toRadians(-30),
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roll: 0
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}
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});
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showStatus(`已定位到经纬度: (${lng.toFixed(4)}, ${lat.toFixed(4)})`);
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}
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// 10. 修复: 鼠标悬浮显示经纬度（支持地球+地形表面、避免NaN）
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function initLatlngTooltip() {
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const canvas = viewer.scene.canvas;
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// 鼠标移动事件
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canvas.addEventListener('mousemove', (e) => {
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// 1. 先尝试获取地形表面坐标（优先、因为加载高程后更准确）
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const windowPosition = new Cesium.Cartesian2(e.clientX, e.clientY);
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let cartographic = null;
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// 方法1: 从地形表面获取坐标（适用于加载了高程模型的场景）
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const ray = viewer.camera.getPickRay(windowPosition);
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if (ray) {
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const hitResult = viewer.scene.pickFromRay(ray);
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if (hitResult && hitResult.position) {
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cartographic = Cesium.Cartographic.fromCartesian(hitResult.position);
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}
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}
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// 方法2: 如果地形获取失败、从椭球面获取（适用于无高程的场景）
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if (!cartographic) {
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cartographic = viewer.scene.camera.pickEllipsoid(windowPosition);
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}
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// 3. 计算并显示经纬度（增加异常处理）
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if (cartographic && !isNaN(cartographic.longitude) && !isNaN(cartographic.latitude)) {
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const longitude = Cesium.Math.toDegrees(cartographic.longitude).toFixed(6);
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const latitude = Cesium.Math.toDegrees(cartographic.latitude).toFixed(6);
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// 显示经纬度（避免NaN）
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latlngTooltip.textContent = `经度: ${longitude} | 纬度: ${latitude}`;
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// 调整提示框位置（防止超出屏幕）
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const tooltipWidth = latlngTooltip.offsetWidth || 150; // 预估宽度
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const left = e.clientX + 10 > window.innerWidth - tooltipWidth
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? e.clientX - tooltipWidth - 10
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: e.clientX + 10;
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const top = e.clientY + 10 > window.innerHeight - 30
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? e.clientY - 30
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: e.clientY + 10;
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latlngTooltip.style.left = `${left}px`;
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latlngTooltip.style.top = `${top}px`;
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latlngTooltip.style.opacity = '1';
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} else {
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// 非地球表面时隐藏提示框
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latlngTooltip.style.opacity = '0';
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}
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});
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// 鼠标离开画布时隐藏
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canvas.addEventListener('mouseleave', () => {
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latlngTooltip.style.opacity = '0';
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});
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}
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// 11. 绑定按钮事件
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document.getElementById('loadBtn').addEventListener('click', loadResource);
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document.getElementById('locateBtn').addEventListener('click', flyToCoordinate);
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document.getElementById('clearBtn').addEventListener('click', () => {
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clearLoadedResource();
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if (viewer.imageryLayers.length > 0) {
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viewer.imageryLayers.removeAll();
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showStatus('所有影像图层已清除');
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}
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});
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// 12. 初始化鼠标经纬度提示
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initLatlngTooltip();
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</script>
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</body>
|
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</html>
|
||||
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Block a user