194 lines
6.4 KiB
HTML
194 lines
6.4 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>Legends | CARTO</title>
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<meta name="viewport" content="initial-scale=1.0">
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<meta charset="utf-8">
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<link href="https://fonts.googleapis.com/css?family=Montserrat:400,600,700|Open+Sans:300,400,600" rel="stylesheet">
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<!-- Include Google Maps -->
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<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDpVNTQI60ossApFzZ3dwSMZ1LcxOTY-rI&v=3.35"></script>
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<!-- Include CARTO.js -->
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<script src="../../../dist/public/carto.js"></script>
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<link href="../style.css" rel="stylesheet">
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</head>
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<body>
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<div id="map"></div>
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<aside class="toolbox">
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<div class="box">
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<header>
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<h1>Legends</h1>
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<button class="github-logo js-source-link"></button>
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</header>
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<section>
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<p class="description open-sans">Create dynamic legends.</p>
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<div class="separator"></div>
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<div id="controls">
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<ul>
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<li onclick="setAllCities()">
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<input type="radio" name="data" checked id="all">
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<label for="all">ALL cities</label>
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</li>
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<li onclick="setEuropeanCities()">
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<input type="radio" name="data" id="europe">
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<label for="europe">European cities</label>
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</li>
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<li onclick="setSpanishCities()">
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<input type="radio" name="data" id="spain">
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<label for="spain">Spanish cities</label>
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</li>
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</ul>
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<div class="separator"></div>
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<ul>
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<li onchange="invertColors()">
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<input type="checkbox" name="data" id="invertColors">
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<label for="invertColors">Invert colors</label>
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</li>
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</ul>
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</div>
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</section>
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<footer class="js-footer"></footer>
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</div>
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<div class="box legend">
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<h2 class="h2">World cities</h2>
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<ul class="category open-sans">
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<li id="capital"></li>
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<li id="normal"></li>
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</ul>
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<h2 class="h2">Inhabitants</h2>
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<ul id="legend-population">
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<li class="size open-sans">
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<div id="min"></div>
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<div id="max"></div>
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</li>
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<li class="avg open-sans"></li>
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</ul>
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</div>
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</aside>
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<script>
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var map = new google.maps.Map(document.getElementById('map'), {
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center: { lat: 30, lng: 0 },
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zoom: 3,
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fullscreenControl: false,
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gestureHandling: 'cooperative'
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});
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// Hide the map labels and geometry strokes
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map.set('styles', [{
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elementType: 'labels',
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stylers: [{ visibility: 'off' }]
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}, {
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elementType: 'geometry.stroke',
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stylers: [{ visibility: 'off' }]
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}]);
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const client = new carto.Client({
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apiKey: 'default_public',
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username: 'cartojs-test'
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});
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const populatedPlacesSource = new carto.source.SQL('SELECT * FROM ne_10m_populated_places_simple');
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const populatedPlacesStyle = new carto.style.CartoCSS(`
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#layer {
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marker-width: ramp([pop_max], range(2, 12), quantiles(5));
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marker-fill: ramp([adm0cap], (#EE4D5A, #68B69E), (0, 1), "=", category);
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marker-fill-opacity: 0.6;
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marker-allow-overlap: true;
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marker-line-width: 1;
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marker-line-color: #000;
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marker-line-opacity: 0.2;
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}
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`);
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const populatedPlacesLayer = new carto.layer.Layer(populatedPlacesSource, populatedPlacesStyle);
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client.addLayer(populatedPlacesLayer);
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map.overlayMapTypes.push(client.getGoogleMapsMapType(map));
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populatedPlacesLayer.on('metadataChanged', function (event) {
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event.styles.forEach(function (styleMetadata) {
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switch (styleMetadata.getProperty()) {
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case 'marker-width':
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renderLegendSize(styleMetadata);
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break;
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case 'marker-fill':
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renderLegendCapital(styleMetadata);
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break;
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}
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});
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});
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function renderLegendSize(metadata) {
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document.getElementById('min').innerHTML = `
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<div class="circle circle-outline" style="width:8px; height:8px;"></div> <p>${metadata.getMin()}</p>
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`;
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document.getElementById('max').innerHTML = `
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<div class="circle circle-outline" style="width:24px; height:24px;"></div> <p>${metadata.getMax()}</p>
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`;
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document.querySelector('.legend .avg').innerHTML = `
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<p><b>Average: </b> ${metadata.getAverage().toFixed(2)}</p>
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`;
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}
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function renderLegendCapital(metadata) {
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const categories = metadata.getCategories();
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for (category of categories) {
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switch (category.name) {
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case 0:
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document.getElementById('normal').innerHTML = `
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<div class="circle" style="background:${category.value}"></div> Normal
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`;
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break;
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case 1:
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document.getElementById('capital').innerHTML = `
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<div class="circle" style="background:${category.value}"></div> Capital
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`;
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break;
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}
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}
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}
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function setAllCities() {
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populatedPlacesSource.setQuery('SELECT * FROM ne_10m_populated_places_simple');
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}
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function setEuropeanCities() {
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populatedPlacesSource.setQuery(`
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SELECT *
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FROM ne_10m_populated_places_simple
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WHERE adm0name IN (SELECT admin FROM ne_adm0_europe)
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`);
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}
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function setSpanishCities() {
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populatedPlacesSource.setQuery(`
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SELECT *
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FROM ne_10m_populated_places_simple
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WHERE adm0name = \'Spain\'
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`);
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}
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function invertColors() {
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const invert = document.getElementById('invertColors').checked;
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const colors = invert ? '(#68B69E, #EE4D5A)' : '(#EE4D5A, #68B69E)';
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const content = `
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#layer {
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marker-width: ramp([pop_max], range(2, 12), quantiles(5));
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marker-fill: ramp([adm0cap], ${colors}, (0, 1), "=", category);
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marker-fill-opacity: 0.6;
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marker-allow-overlap: true;
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marker-line-width: 1;
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marker-line-color: #000;
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marker-line-opacity: 0.2;
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}
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`;
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populatedPlacesStyle.setContent(content);
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}
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</script>
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</body>
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</html>
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