GuavaPopper
444 lines
12 KiB
HTML
444 lines
12 KiB
HTML
<!doctype html>
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<html lang="id">
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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>WebGIS Choropleth Kecamatan Pontianak</title>
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<link rel="preconnect" href="https://fonts.googleapis.com" />
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<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
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<link href="https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;700&family=IBM+Plex+Mono:wght@400;500&display=swap" rel="stylesheet" />
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<link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" integrity="sha256-p4NxAoJBhIIN+hmNHrzRCf9tD/miZyoHS5obTRR9BMY=" crossorigin="" />
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<style>
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:root {
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--bg-1: #091821;
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--bg-2: #103447;
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--panel: rgba(9, 24, 33, 0.78);
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--text-main: #e8f5f9;
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--text-sub: #acd1db;
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--accent: #ffd166;
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--border: rgba(255, 255, 255, 0.15);
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--shadow: 0 12px 45px rgba(0, 0, 0, 0.35);
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}
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* {
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box-sizing: border-box;
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}
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html,
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body {
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width: 100%;
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height: 100%;
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margin: 0;
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font-family: "Space Grotesk", sans-serif;
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color: var(--text-main);
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background:
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radial-gradient(circle at 12% 20%, rgba(255, 209, 102, 0.14), transparent 40%),
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radial-gradient(circle at 87% 12%, rgba(77, 174, 255, 0.2), transparent 45%),
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linear-gradient(130deg, var(--bg-1), var(--bg-2));
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overflow: hidden;
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}
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.app {
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position: relative;
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width: 100%;
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height: 100%;
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padding: 16px;
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animation: enter 0.7s ease;
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}
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@keyframes enter {
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from {
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transform: translateY(8px);
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opacity: 0;
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}
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to {
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transform: translateY(0);
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opacity: 1;
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}
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}
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#map {
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width: 100%;
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height: 100%;
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border-radius: 18px;
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border: 1px solid var(--border);
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box-shadow: var(--shadow);
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overflow: hidden;
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}
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.hud {
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position: absolute;
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left: 30px;
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top: 30px;
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z-index: 1000;
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width: min(420px, calc(100% - 60px));
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padding: 16px 18px;
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background: var(--panel);
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border: 1px solid var(--border);
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border-radius: 14px;
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backdrop-filter: blur(7px);
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box-shadow: var(--shadow);
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}
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.hud h1 {
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margin: 0 0 6px;
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font-size: 1.24rem;
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line-height: 1.3;
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font-weight: 700;
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letter-spacing: 0.2px;
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}
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.hud p {
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margin: 0;
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font-size: 0.92rem;
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color: var(--text-sub);
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line-height: 1.4;
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}
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.chip {
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display: inline-flex;
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margin-top: 10px;
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padding: 5px 9px;
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border-radius: 999px;
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border: 1px solid rgba(255, 209, 102, 0.4);
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color: var(--accent);
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font-size: 0.78rem;
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font-family: "IBM Plex Mono", monospace;
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letter-spacing: 0.2px;
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background: rgba(255, 209, 102, 0.08);
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}
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.leaflet-container {
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background: #0b202d;
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font: inherit;
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}
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.legend,
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.info-box {
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padding: 10px 12px;
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background: rgba(7, 20, 28, 0.92);
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border: 1px solid var(--border);
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border-radius: 10px;
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color: var(--text-main);
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line-height: 1.35;
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box-shadow: var(--shadow);
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}
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.legend h4 {
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margin: 0 0 8px;
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font-size: 0.88rem;
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color: #dff4ff;
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}
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.legend-row {
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display: flex;
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align-items: center;
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gap: 8px;
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margin: 4px 0;
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font-size: 0.8rem;
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color: var(--text-sub);
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font-family: "IBM Plex Mono", monospace;
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}
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.swatch {
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width: 16px;
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height: 16px;
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border-radius: 4px;
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border: 1px solid rgba(255, 255, 255, 0.26);
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flex: 0 0 16px;
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}
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.info-box {
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width: 230px;
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}
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.info-box b {
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color: #fff;
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}
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.status {
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position: absolute;
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right: 26px;
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bottom: 20px;
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z-index: 1000;
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padding: 8px 10px;
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border-radius: 9px;
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border: 1px solid var(--border);
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background: rgba(9, 24, 33, 0.86);
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color: var(--text-sub);
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font-family: "IBM Plex Mono", monospace;
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font-size: 0.76rem;
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}
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@media (max-width: 720px) {
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.app {
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padding: 10px;
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}
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.hud {
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left: 16px;
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top: 16px;
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width: calc(100% - 32px);
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}
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.hud h1 {
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font-size: 1.05rem;
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}
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.status {
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right: 16px;
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bottom: 12px;
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font-size: 0.7rem;
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}
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}
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</style>
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</head>
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<body>
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<div class="app">
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<div id="map"></div>
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<section class="hud">
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<h1>WebGIS Choropleth Kecamatan Kota Pontianak</h1>
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<p>
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Intensitas warna menunjukkan jumlah penduduk setiap kecamatan di Kota Pontianak.
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</p>
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<span class="chip">Leaflet + Proj4 + Turf</span>
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</section>
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<div class="status">Memuat data spasial...</div>
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</div>
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<script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js" integrity="sha256-20nQCchB9co0qIjJZRGuk2/Z9VM+kNiyxNV1lvTlZBo=" crossorigin=""></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/proj4js/2.9.2/proj4.min.js"></script>
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<script src="https://cdn.jsdelivr.net/npm/@turf/turf@6/turf.min.js"></script>
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<script>
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const statusEl = document.querySelector('.status');
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const map = L.map('map', {
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zoomControl: true,
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minZoom: 10,
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maxZoom: 16,
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preferCanvas: true
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});
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L.tileLayer('https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}', {
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attribution: 'Tiles © Esri — Source: Esri, i-cubed, USDA, USGS, AEX, GeoEye, Getmapping, Aerogrid, IGN, IGP, UPR-EGP, and the GIS User Community'
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}).addTo(map);
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L.tileLayer('https://server.arcgisonline.com/ArcGIS/rest/services/Reference/World_Boundaries_and_Places/MapServer/tile/{z}/{y}/{x}', {
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attribution: 'Labels © Esri'
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}).addTo(map);
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proj4.defs('EPSG:32749', '+proj=utm +zone=49 +south +datum=WGS84 +units=m +no_defs +type=crs');
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const palette = ['#fff8dc', '#fee7ad', '#f9c76f', '#f39f4d', '#d97706', '#a84906'];
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function round2(value) {
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return Math.round((value + Number.EPSILON) * 100) / 100;
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}
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function getQuantileBreaks(values, steps) {
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const sorted = [...values].sort((a, b) => a - b);
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const breaks = [];
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for (let i = 0; i <= steps; i++) {
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const idx = Math.floor((i / steps) * (sorted.length - 1));
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breaks.push(sorted[idx]);
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}
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return breaks;
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}
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function convertCoords(coords) {
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if (!Array.isArray(coords[0])) {
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const [x, y] = coords;
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return proj4('EPSG:32749', 'EPSG:4326', [x, y]);
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}
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return coords.map(convertCoords);
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}
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function convertFeatureCollectionToWGS84(featureCollection) {
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return {
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type: 'FeatureCollection',
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features: featureCollection.features.map((feature) => ({
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type: 'Feature',
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properties: { ...feature.properties },
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geometry: {
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type: feature.geometry.type,
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coordinates: convertCoords(feature.geometry.coordinates)
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}
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}))
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};
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}
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function colorFromBreaks(value, breaks) {
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if (value <= breaks[1]) return palette[0];
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if (value <= breaks[2]) return palette[1];
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if (value <= breaks[3]) return palette[2];
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if (value <= breaks[4]) return palette[3];
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if (value <= breaks[5]) return palette[4];
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return palette[5];
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}
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const populationData = {
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'Pontianak Selatan': 91290,
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'Pontianak Tenggara': 49176,
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'Pontianak Timur': 110904,
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'Pontianak Barat': 150517,
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'Pontianak Kota': 123867,
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'Pontianak Utara': 149714
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};
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const info = L.control({ position: 'topright' });
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info.onAdd = function () {
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this._div = L.DomUtil.create('div', 'info-box');
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this.update();
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return this._div;
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};
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info.update = function (props) {
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this._div.innerHTML = props
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? `<b>${props.Ket}</b><br>Jumlah Penduduk: ${props.pop.toLocaleString('id-ID')} jiwa`
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: 'Arahkan cursor ke kecamatan';
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};
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info.addTo(map);
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function createLegend(breaks) {
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const legend = L.control({ position: 'bottomright' });
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legend.onAdd = function () {
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const div = L.DomUtil.create('div', 'legend');
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div.innerHTML = '<h4>Jumlah Penduduk (jiwa)</h4>';
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for (let i = 0; i < 6; i++) {
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const from = breaks[i];
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const to = breaks[i + 1];
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const label = to
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? `${from.toLocaleString('id-ID')} - ${to.toLocaleString('id-ID')}`
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: `> ${from.toLocaleString('id-ID')}`;
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const row = document.createElement('div');
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row.className = 'legend-row';
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row.innerHTML = `<span class="swatch" style="background:${palette[i]}"></span><span>${label}</span>`;
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div.appendChild(row);
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}
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return div;
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};
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legend.addTo(map);
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}
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function onEachFeatureFactory(layerRef) {
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return function onEachFeature(layer) {
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const feature = layer.feature;
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layer.on({
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mouseover: (e) => {
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const target = e.target;
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target.setStyle({
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weight: 3,
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color: '#ffffff',
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fillOpacity: 0.94
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});
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target.bringToFront();
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info.update(target.feature.properties);
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},
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mouseout: (e) => {
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layerRef.resetStyle(e.target);
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info.update();
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},
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click: (e) => {
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map.fitBounds(e.target.getBounds(), { padding: [16, 16] });
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}
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});
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const p = feature.properties;
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layer.bindPopup(
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`<b>${p.Ket}</b><br/>Jumlah Penduduk: <b>${p.pop.toLocaleString('id-ID')} jiwa</b>`
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);
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};
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}
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async function fetchGeoJsonWithFallback() {
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const candidates = [
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'./Admin_Kecamatan.json',
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'Admin_Kecamatan.json',
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'/GIS_Brutal/Admin_Kecamatan.json',
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'/Admin_Kecamatan.json'
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];
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const errors = [];
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for (const url of candidates) {
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try {
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const response = await fetch(url, { cache: 'no-store' });
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if (!response.ok) {
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errors.push(`${url} -> HTTP ${response.status}`);
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continue;
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}
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const text = await response.text();
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const trimmed = text.trimStart();
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if (!(trimmed.startsWith('{') || trimmed.startsWith('['))) {
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errors.push(`${url} -> respon bukan JSON`);
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continue;
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}
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try {
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return JSON.parse(text);
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} catch (parseErr) {
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errors.push(`${url} -> JSON invalid (${parseErr.message})`);
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}
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} catch (fetchErr) {
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errors.push(`${url} -> ${fetchErr.message}`);
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}
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}
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throw new Error(errors.join(' | '));
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}
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async function init() {
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try {
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const rawGeoJson = await fetchGeoJsonWithFallback();
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const geojson = convertFeatureCollectionToWGS84(rawGeoJson);
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const values = geojson.features.map((f) => {
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const name = f.properties.Ket;
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const pop = populationData[name] || 0;
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f.properties.pop = pop;
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return pop;
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});
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const breaks = [0, 50000, 95000, 115000, 135000, 150000];
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const layerRef = L.geoJSON(geojson, {
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style: (feature) => ({
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color: '#0e2733',
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weight: 1.4,
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fillColor: colorFromBreaks(feature.properties.pop, breaks),
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fillOpacity: 0.86
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})
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});
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layerRef.eachLayer(onEachFeatureFactory(layerRef));
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layerRef.addTo(map);
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map.fitBounds(layerRef.getBounds(), { padding: [18, 18] });
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createLegend(breaks);
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statusEl.textContent = 'Data termuat: 6 kecamatan';
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} catch (error) {
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statusEl.textContent = 'Terjadi error saat memuat data';
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console.error(error);
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alert(`Data gagal dimuat: ${error.message}`);
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}
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}
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init();
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</script>
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</body>
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</html> |