HeadFirstC/map.html at master · dogriffiths/HeadFirstC · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>GPS Tracking Map</title>

    <!-- Leaflet CSS -->
    <link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" />

    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: Arial, sans-serif;
            background-color: #f5f5f5;
        }

        .header {
            background-color: #2c3e50;
            color: white;
            padding: 20px;
            text-align: center;
        }

        h1 {
            margin: 0;
            font-size: 24px;
        }

        .info-panel {
            background-color: white;
            padding: 15px;
            margin: 10px;
            border-radius: 8px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }

        #map {
            height: 600px;
            margin: 10px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.15);
        }

        .legend {
            background-color: white;
            padding: 10px;
            margin: 10px;
            border-radius: 8px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }

        .legend-item {
            display: flex;
            align-items: center;
            margin: 5px 0;
        }

        .legend-marker {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            margin-right: 10px;
        }

        .speed-low { background-color: #27ae60; }
        .speed-medium { background-color: #f39c12; }
        .speed-high { background-color: #e74c3c; }
    </style>
</head>
<body>
    <div class="header">
        <h1>GPS Tracking Map</h1>
    </div>

    <div class="info-panel">
        <p><strong>Total Points:</strong> <span id="pointCount">0</span></p>
        <p><strong>Route Distance:</strong> Approximately <span id="distance">0</span> meters</p>
    </div>

    <div id="map"></div>

    <div class="legend">
        <h3>Speed Legend</h3>
        <div class="legend-item">
            <div class="legend-marker speed-low"></div>
            <span>Low Speed (< 18)</span>
        </div>
        <div class="legend-item">
            <div class="legend-marker speed-medium"></div>
            <span>Medium Speed (18-20)</span>
        </div>
        <div class="legend-item">
            <div class="legend-marker speed-high"></div>
            <span>High Speed (> 20)</span>
        </div>
    </div>

    <!-- Leaflet JS -->
    <script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"></script>
    <script src="./output.json"></script>

    <script>

        // Calculate center of all points
        const centerLat = data.reduce((sum, point) => sum + point.latitude, 0) / data.length;
        const centerLng = data.reduce((sum, point) => sum + point.longitude, 0) / data.length;

        // Initialize map
        const map = L.map('map').setView([centerLat, centerLng], 14);

        // Add OpenStreetMap tiles
        L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
            attribution: '© OpenStreetMap contributors',
            maxZoom: 19
        }).addTo(map);

        // Function to get marker color based on speed
        function getMarkerColor(speed) {
            if (speed < 18) return '#27ae60'; // Green
            if (speed <= 20) return '#f39c12'; // Orange
            return '#e74c3c'; // Red
        }

        // Function to extract speed from info string
        function extractSpeed(infoString) {
            const match = infoString.match(/Speed = (\d+)/);
            return match ? parseInt(match[1]) : 0;
        }

        // Create custom icon function
        function createCustomIcon(color) {
            return L.divIcon({
                className: 'custom-marker',
                html: `<div style="background-color: ${color}; width: 24px; height: 24px; border-radius: 50%; border: 3px solid white; box-shadow: 0 2px 4px rgba(0,0,0,0.3);"></div>`,
                iconSize: [24, 24],
                iconAnchor: [12, 12]
            });
        }

        // Add markers and create polyline
        const latLngs = [];

        data.forEach((point, index) => {
            const speed = extractSpeed(point.info);
            const color = getMarkerColor(speed);
            const icon = createCustomIcon(color);

            const marker = L.marker([point.latitude, point.longitude], { icon: icon })
                .addTo(map)
                .bindPopup(`
                    <div style="text-align: center;">
                        <strong>Point ${index + 1}</strong><br>
                        ${point.info}<br>
                        <small>Lat: ${point.latitude.toFixed(6)}<br>
                        Lng: ${point.longitude.toFixed(6)}</small>
                    </div>
                `);

            latLngs.push([point.latitude, point.longitude]);
        });

        // Draw route line
        if (latLngs.length > 1) {
            L.polyline(latLngs, {
                color: '#3498db',
                weight: 3,
                opacity: 0.7,
                dashArray: '10, 5'
            }).addTo(map);
        }

        // Calculate approximate distance
        function calculateDistance(lat1, lon1, lat2, lon2) {
            const R = 6371e3; // Earth's radius in meters
            const φ1 = lat1 * Math.PI / 180;
            const φ2 = lat2 * Math.PI / 180;
            const Δφ = (lat2 - lat1) * Math.PI / 180;
            const Δλ = (lon2 - lon1) * Math.PI / 180;

            const a = Math.sin(Δφ/2) * Math.sin(Δφ/2) +
                      Math.cos(φ1) * Math.cos(φ2) *
                      Math.sin(Δλ/2) * Math.sin(Δλ/2);
            const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));

            return R * c;
        }

        let totalDistance = 0;
        for (let i = 0; i < data.length - 1; i++) {
            totalDistance += calculateDistance(
                data[i].latitude,
                data[i].longitude,
                data[i + 1].latitude,
                data[i + 1].longitude
            );
        }

        // Update info panel
        document.getElementById('pointCount').textContent = data.length;
        document.getElementById('distance').textContent = totalDistance.toFixed(0);

        // Fit map to show all markers
        if (latLngs.length > 0) {
            map.fitBounds(latLngs, { padding: [50, 50] });
        }
    </script>
</body>
</html>