获取鼠标指针坐标

获取鼠标指针的坐标;

<!DOCTYPE html>
<html lang="en">
<head>
    <title>获取鼠标指针坐标</title>
    <meta property="og:description" content="获取鼠标指针的坐标" />
    <meta charset='utf-8'>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel='stylesheet' href='https://unpkg.com/maplibre-gl@5.5.0/dist/maplibre-gl.css' />
    <script src='https://unpkg.com/maplibre-gl@5.5.0/dist/maplibre-gl.js'></script>
    <style>
        body { margin: 0; padding: 0; }
        html, body, #map { height: 100%; }
        
        .coordinates-box {
            position: absolute;
            bottom: 20px;
            left: 10px;
            padding: 10px;
            background-color: rgba(255, 255, 255, 0.9);
            font-family: 'Arial', sans-serif;
            font-size: 14px;
            color: #333;
            border-radius: 4px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
            z-index: 1;
        }
        
        .coordinates-box h3 {
            margin: 0 0 10px 0;
            font-size: 16px;
            border-bottom: 1px solid #ddd;
            padding-bottom: 5px;
        }
        
        .coordinates-container {
            display: grid;
            grid-template-columns: auto auto;
            grid-gap: 5px;
        }
        
        .coordinates-container div {
            padding: 5px 0;
        }
        
        .label {
            font-weight: bold;
            padding-right: 10px;
        }
        
        .value {
            font-family: 'Courier New', monospace;
            min-width: 150px;
        }
        
        .dms-value {
            font-size: 12px;
            color: #666;
        }
        
        .copy-button {
            margin-top: 10px;
            padding: 5px 10px;
            background-color: #4285F4;
            color: white;
            border: none;
            border-radius: 3px;
            cursor: pointer;
            font-size: 12px;
        }
        
        .copy-button:hover {
            background-color: #3367D6;
        }
        
        .copy-message {
            display: none;
            font-size: 12px;
            color: #4CAF50;
            margin-top: 5px;
        }
    </style>
</head>
<body>
<div id="map"></div>
<div class="coordinates-box">
    <h3>鼠标坐标</h3>
    <div class="coordinates-container">
        <div class="label">经度:</div>
        <div class="value" id="lng">0.000000</div>
        
        <div class="label">纬度:</div>
        <div class="value" id="lat">0.000000</div>
        
        <div class="label">经度 (DMS):</div>
        <div class="value dms-value" id="lng-dms">0° 0' 0" E</div>
        
        <div class="label">纬度 (DMS):</div>
        <div class="value dms-value" id="lat-dms">0° 0' 0" N</div>
        
        <div class="label">缩放级别:</div>
        <div class="value" id="zoom">0.00</div>
    </div>
    <button id="copy-coords" class="copy-button">复制坐标</button>
    <div id="copy-message" class="copy-message">坐标已复制到剪贴板!</div>
</div>
<script>
    const map = new maplibregl.Map({
        container: 'map',
        style: 'https://api.maptiler.com/maps/streets/style.json?key=get_your_own_OpIi9ZULNHzrESv6T2vL',
        center: [0, 0],
        zoom: 2
    });

    // 添加导航控件
    map.addControl(new maplibregl.NavigationControl());

    // 获取DOM元素
    const lngElement = document.getElementById('lng');
    const latElement = document.getElementById('lat');
    const lngDmsElement = document.getElementById('lng-dms');
    const latDmsElement = document.getElementById('lat-dms');
    const zoomElement = document.getElementById('zoom');
    const copyButton = document.getElementById('copy-coords');
    const copyMessage = document.getElementById('copy-message');

    // 当前坐标
    let currentLng = 0;
    let currentLat = 0;

    // 监听鼠标移动
    map.on('mousemove', function(e) {
        // 更新当前坐标
        currentLng = e.lngLat.lng;
        currentLat = e.lngLat.lat;
        
        // 更新十进制坐标显示
        lngElement.textContent = currentLng.toFixed(6);
        latElement.textContent = currentLat.toFixed(6);
        
        // 更新度分秒坐标显示
        lngDmsElement.textContent = convertToDMS(currentLng, 'lng');
        latDmsElement.textContent = convertToDMS(currentLat, 'lat');
    });

    // 监听缩放变化
    map.on('zoom', function() {
        zoomElement.textContent = map.getZoom().toFixed(2);
    });
    
    // 初始设置缩放级别
    map.on('load', function() {
        zoomElement.textContent = map.getZoom().toFixed(2);
    });

    // 复制坐标按钮
    copyButton.addEventListener('click', function() {
        const textToCopy = `经度: ${currentLng.toFixed(6)}, 纬度: ${currentLat.toFixed(6)}`;
        
        // 复制到剪贴板
        navigator.clipboard.writeText(textToCopy).then(function() {
            // 显示成功消息
            copyMessage.style.display = 'block';
            
            // 3秒后隐藏消息
            setTimeout(function() {
                copyMessage.style.display = 'none';
            }, 3000);
        });
    });

    // 将十进制度数转换为度分秒格式
    function convertToDMS(value, type) {
        const absolute = Math.abs(value);
        const degrees = Math.floor(absolute);
        const minutesNotTruncated = (absolute - degrees) * 60;
        const minutes = Math.floor(minutesNotTruncated);
        const seconds = Math.floor((minutesNotTruncated - minutes) * 60);
        
        let direction = '';
        if (type === 'lat') {
            direction = value >= 0 ? 'N' : 'S';
        } else {
            direction = value >= 0 ? 'E' : 'W';
        }
        
        return `${degrees}° ${minutes}' ${seconds}" ${direction}`;
    }
</script>
</body>
</html>