Andrie
312 lines
14 KiB
JavaScript
312 lines
14 KiB
JavaScript
// modules/choropleth.js — Choropleth visualizer untuk Project 01
|
||
|
||
(function () {
|
||
const PALETTES = {
|
||
blue: ['#c6dbef', '#9ecae1', '#6baed6', '#3182bd', '#08519c'],
|
||
orange: ['#fdd0a2', '#fdae6b', '#fd8d3c', '#e6550d', '#a63603'],
|
||
green: ['#c7e9c0', '#a1d99b', '#74c476', '#31a354', '#006d2c'],
|
||
purple: ['#dadaeb', '#bcbddc', '#9e9ac8', '#6a51a3', '#3f007d'],
|
||
};
|
||
|
||
// Qualitative palette — 10 distinct colors for categorical data
|
||
const CAT_COLORS = [
|
||
'#4e79a7','#f28e2b','#e15759','#76b7b2',
|
||
'#59a14f','#edc948','#b07aa1','#ff9da7',
|
||
'#9c755f','#bab0ac',
|
||
];
|
||
|
||
let layers = []; // { meta, leafletLayer, colorMode, categoryMap, breaks, pal }
|
||
let allMeta = []; // metadata rows from API (no geojson blob)
|
||
|
||
// ── Color scale helpers ──────────────────────────────────────────
|
||
function quantileBreaks(values) {
|
||
const sorted = values.filter(v => isFinite(v)).sort((a, b) => a - b);
|
||
if (sorted.length === 0) return [0, 0, 0, 0, 0, 0];
|
||
const breaks = [];
|
||
for (let i = 0; i <= 5; i++) {
|
||
breaks.push(sorted[Math.round(i * (sorted.length - 1) / 5)]);
|
||
}
|
||
return breaks;
|
||
}
|
||
|
||
function getColor(val, breaks, pal) {
|
||
for (let i = 0; i < pal.length; i++) {
|
||
if (val <= breaks[i + 1]) return pal[i];
|
||
}
|
||
return pal[pal.length - 1];
|
||
}
|
||
|
||
// Returns {colorMode:'categorical'|'quantile', categoryMap, breaks}
|
||
function buildColorConfig(features, attrKey, pal) {
|
||
const rawVals = features.map(f => f.properties[attrKey]);
|
||
const numVals = rawVals.map(v => parseFloat(v));
|
||
const allNumeric = numVals.every(v => isFinite(v));
|
||
const uniqueRaw = [...new Set(rawVals.map(String))];
|
||
|
||
// Use categorical when: any non-numeric value, OR ≤ 10 unique values
|
||
if (!allNumeric || uniqueRaw.length <= 10) {
|
||
const categoryMap = {};
|
||
uniqueRaw.sort().forEach((v, i) => { categoryMap[v] = CAT_COLORS[i % CAT_COLORS.length]; });
|
||
return { colorMode: 'categorical', categoryMap, breaks: null };
|
||
}
|
||
const breaks = quantileBreaks(numVals);
|
||
return { colorMode: 'quantile', categoryMap: null, breaks };
|
||
}
|
||
|
||
function fmtVal(v) {
|
||
const n = parseFloat(v);
|
||
if (isFinite(n)) return n.toLocaleString('id-ID', { minimumFractionDigits: 0, maximumFractionDigits: 2 });
|
||
return String(v ?? '—');
|
||
}
|
||
|
||
function isClassicDrawingActive() {
|
||
return typeof window.currentMode !== 'undefined' && Number(window.currentMode) !== 0;
|
||
}
|
||
|
||
function setLayerHitTesting(leafletLayer, enabled) {
|
||
if (!leafletLayer || typeof leafletLayer.eachLayer !== 'function') return;
|
||
leafletLayer.eachLayer(layer => {
|
||
if (layer._path && layer._path.style) {
|
||
layer._path.style.pointerEvents = enabled ? '' : 'none';
|
||
}
|
||
});
|
||
}
|
||
|
||
function setAllHitTesting(enabled) {
|
||
layers.forEach(rendered => setLayerHitTesting(rendered.leafletLayer, enabled));
|
||
}
|
||
|
||
// ── Render one GeoJSON layer on map ─────────────────────────────
|
||
function renderLeafletLayer(meta, geojson) {
|
||
const pal = PALETTES[meta.palette] || PALETTES.blue;
|
||
const { colorMode, categoryMap, breaks } = buildColorConfig(geojson.features, meta.attribute_key, pal);
|
||
|
||
function featureColor(f) {
|
||
const raw = f.properties[meta.attribute_key];
|
||
if (colorMode === 'categorical') {
|
||
return categoryMap[String(raw)] || '#cccccc';
|
||
}
|
||
const val = parseFloat(raw);
|
||
return isFinite(val) ? getColor(val, breaks, pal) : '#cccccc';
|
||
}
|
||
|
||
const lyr = L.geoJSON(geojson, {
|
||
pane: 'choroplethPane',
|
||
style: function (f) {
|
||
return {
|
||
fillColor: featureColor(f),
|
||
weight: 1,
|
||
color: '#ffffff',
|
||
fillOpacity: 0.78,
|
||
opacity: 0.9,
|
||
};
|
||
},
|
||
onEachFeature: function (f, layer) {
|
||
const props = f.properties || {};
|
||
|
||
function buildPopup(closeBtn) {
|
||
const rows = Object.entries(props)
|
||
.map(([k, v]) => `<tr><td class="pp-k">${escapeHTML(String(k))}</td><td class="pp-v">${escapeHTML(String(v ?? '—'))}</td></tr>`)
|
||
.join('');
|
||
return `<div class="choro-popup"><table>${rows}</table></div>`;
|
||
}
|
||
|
||
layer.on('mouseover', function (e) {
|
||
if (isClassicDrawingActive()) return;
|
||
L.popup({ closeButton: false, className: 'choro-popup-wrap', offset: [0, -4] })
|
||
.setLatLng(e.latlng)
|
||
.setContent(buildPopup(false))
|
||
.openOn(map);
|
||
layer.setStyle({ weight: 2, color: '#1c1612' });
|
||
});
|
||
layer.on('mouseout', function () {
|
||
if (isClassicDrawingActive()) return;
|
||
map.closePopup();
|
||
lyr.resetStyle(layer);
|
||
});
|
||
layer.on('click', function (e) {
|
||
if (isClassicDrawingActive()) return;
|
||
L.popup({ closeButton: true, className: 'choro-popup-wrap' })
|
||
.setLatLng(e.latlng)
|
||
.setContent(buildPopup(true))
|
||
.openOn(map);
|
||
L.DomEvent.stopPropagation(e);
|
||
});
|
||
},
|
||
});
|
||
|
||
return { meta, leafletLayer: lyr, colorMode, categoryMap, breaks, pal };
|
||
}
|
||
|
||
// ── Legend ───────────────────────────────────────────────────────
|
||
function buildLegends() {
|
||
const container = document.getElementById('legendContainer');
|
||
if (!container) return;
|
||
|
||
const visible = layers.filter(l => l.meta.is_visible);
|
||
if (visible.length === 0) {
|
||
container.innerHTML = '';
|
||
container.style.display = 'none';
|
||
return;
|
||
}
|
||
|
||
container.style.display = 'block';
|
||
container.innerHTML = visible.map(({ meta, colorMode, categoryMap, breaks, pal }) => {
|
||
let classes;
|
||
if (colorMode === 'categorical') {
|
||
classes = Object.entries(categoryMap).map(([val, color]) => `
|
||
<div class="leg-row">
|
||
<span class="leg-swatch" style="background:${color}"></span>
|
||
<span class="leg-range">${escapeHTML(String(val))}</span>
|
||
</div>`).join('');
|
||
} else {
|
||
classes = pal.map((color, i) => `
|
||
<div class="leg-row">
|
||
<span class="leg-swatch" style="background:${color}"></span>
|
||
<span class="leg-range">${fmtVal(breaks[i])} – ${fmtVal(breaks[i + 1])}</span>
|
||
</div>`).join('');
|
||
}
|
||
return `<div class="leg-block">
|
||
<div class="leg-title">${escapeHTML(meta.nama)}</div>
|
||
<div class="leg-attr">${escapeHTML(meta.attribute_key)}</div>
|
||
${classes}
|
||
</div>`;
|
||
}).join('');
|
||
}
|
||
|
||
// ── Layer panel ──────────────────────────────────────────────────
|
||
function refreshPanel() {
|
||
const list = document.getElementById('layerList');
|
||
if (!list) return;
|
||
|
||
if (allMeta.length === 0) {
|
||
list.innerHTML = '<div class="layer-empty">Belum ada layer.<br>Upload GeoJSON dari ArcGIS.</div>';
|
||
return;
|
||
}
|
||
|
||
list.innerHTML = allMeta.map(m => {
|
||
const isVisible = m.is_visible;
|
||
const eyeIcon = isVisible ? 'eye' : 'eye-off';
|
||
const palDots = (PALETTES[m.palette] || PALETTES.blue)
|
||
.map(c => `<span class="pal-dot" style="background:${c}"></span>`).join('');
|
||
const safeNama = m.nama.replace(/\\/g,'\\\\').replace(/'/g,"\\'");
|
||
const delBtn = window._IS_ADMIN
|
||
? `<button class="layer-del" onclick="window._choro.deleteLayer(${m.id},'${safeNama}')" title="Hapus"><i data-lucide="trash-2"></i></button>`
|
||
: '';
|
||
return `
|
||
<div class="layer-item ${isVisible ? '' : 'is-hidden'}" id="li${m.id}">
|
||
<div class="layer-item-row">
|
||
<button class="layer-eye" onclick="window._choro.toggleLayer(${m.id})" title="${isVisible ? 'Sembunyikan' : 'Tampilkan'}">
|
||
<i data-lucide="${eyeIcon}" id="eye${m.id}"></i>
|
||
</button>
|
||
<div class="layer-info">
|
||
<div class="layer-name">${escapeHTML(m.nama)}</div>
|
||
<div class="layer-attr">${escapeHTML(m.attribute_key)}</div>
|
||
</div>
|
||
${delBtn}
|
||
</div>
|
||
<div class="layer-pal">${palDots}</div>
|
||
</div>`;
|
||
}).join('');
|
||
|
||
if (typeof lucide !== 'undefined') lucide.createIcons();
|
||
}
|
||
|
||
// ── Load GeoJSON for one layer, add to map ───────────────────────
|
||
function loadLayerGeojson(meta) {
|
||
return fetch('api/choropleth/geojson.php?id=' + meta.id + '&_=' + Date.now())
|
||
.then(r => { if (!r.ok) throw new Error('HTTP ' + r.status); return r.json(); })
|
||
.then(geojson => {
|
||
const rendered = renderLeafletLayer(meta, geojson);
|
||
if (meta.is_visible) rendered.leafletLayer.addTo(map);
|
||
layers.push(rendered);
|
||
setLayerHitTesting(rendered.leafletLayer, !isClassicDrawingActive());
|
||
return rendered;
|
||
});
|
||
}
|
||
|
||
// ── Initial load ─────────────────────────────────────────────────
|
||
function loadAll() {
|
||
layers = [];
|
||
return fetch('api/choropleth/ambil.php?_=' + Date.now())
|
||
.then(r => r.json())
|
||
.then(j => {
|
||
if (j.status !== 'success') throw new Error(j.message || 'Gagal memuat layer.');
|
||
allMeta = j.data;
|
||
refreshPanel();
|
||
return Promise.all(allMeta.map(meta => loadLayerGeojson(meta)));
|
||
})
|
||
.then(() => buildLegends())
|
||
.catch(err => {
|
||
showToast('Gagal memuat data: ' + err.message, 'error');
|
||
console.error(err);
|
||
});
|
||
}
|
||
|
||
// ── Public API ───────────────────────────────────────────────────
|
||
window._choro = {
|
||
|
||
toggleLayer: function (id) {
|
||
const rendered = layers.find(l => l.meta.id === id);
|
||
const meta = allMeta.find(m => m.id === id);
|
||
if (!meta) return;
|
||
|
||
const newVisible = !meta.is_visible;
|
||
meta.is_visible = newVisible;
|
||
if (rendered) {
|
||
rendered.meta.is_visible = newVisible;
|
||
if (newVisible) rendered.leafletLayer.addTo(map);
|
||
else map.removeLayer(rendered.leafletLayer);
|
||
}
|
||
|
||
refreshPanel();
|
||
buildLegends();
|
||
showToast(escapeHTML(meta.nama) + (newVisible ? ' ditampilkan.' : ' disembunyikan.'));
|
||
|
||
if (window._IS_ADMIN) {
|
||
const fd = new FormData();
|
||
fd.append('id', id);
|
||
fetch('api/choropleth/toggle.php', { method: 'POST', body: fd }).catch(() => {});
|
||
}
|
||
},
|
||
|
||
deleteLayer: function (id, nama) {
|
||
showDeleteConfirm('Yakin ingin menghapus layer "' + nama + '"?').then(ok => {
|
||
if (!ok) return;
|
||
const fd = new FormData();
|
||
fd.append('id', id);
|
||
fetch('api/choropleth/hapus.php', { method: 'POST', body: fd })
|
||
.then(r => r.json())
|
||
.then(j => {
|
||
if (j.status !== 'success') throw new Error(j.message);
|
||
const idx = layers.findIndex(l => l.meta.id === id);
|
||
if (idx !== -1) { map.removeLayer(layers[idx].leafletLayer); layers.splice(idx, 1); }
|
||
allMeta = allMeta.filter(m => m.id !== id);
|
||
refreshPanel();
|
||
buildLegends();
|
||
showToast('Layer "' + escapeHTML(nama) + '" berhasil dihapus.');
|
||
})
|
||
.catch(err => showToast(err.message || 'Gagal menghapus.', 'error'));
|
||
});
|
||
},
|
||
|
||
// Called after successful upload to add new layer without full reload
|
||
addLayer: function (meta) {
|
||
allMeta.push(meta);
|
||
loadLayerGeojson(meta).then(() => {
|
||
refreshPanel();
|
||
buildLegends();
|
||
// Zoom to new layer
|
||
const rendered = layers.find(l => l.meta.id === meta.id);
|
||
if (rendered) {
|
||
try { map.fitBounds(rendered.leafletLayer.getBounds(), { padding: [40, 40] }); } catch (_) {}
|
||
}
|
||
}).catch(err => showToast('Layer tersimpan tapi gagal render: ' + err.message, 'error'));
|
||
},
|
||
|
||
setHitTesting: setAllHitTesting,
|
||
};
|
||
|
||
window.initChoropleth = loadAll;
|
||
})();
|