148 lines
5.0 KiB
HTML
148 lines
5.0 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>Custom search dataset | 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 Leaflet -->
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<script src="https://unpkg.com/leaflet/dist/leaflet.js"></script>
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<link href="https://unpkg.com/leaflet/dist/leaflet.css" rel="stylesheet">
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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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<style>
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#selectDrop {
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background-color: #d2eaef;
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opacity: 0.8;
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position: absolute;
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top: 10px;
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left: 50px;
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width: auto;
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height: auto;
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padding: 10px;
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display: block;
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z-index: 9000;
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}
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#selectDrop input {
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width: 200px;
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}
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div#results {
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background: #FFF;
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}
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</style>
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</head>
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<body>
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<div id="map"></div>
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<div id="searchbox">
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<select id="selectDrop">
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<option selected value="">Please Select</option>
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</select>
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</div>
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<!-- Description -->
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<aside class="toolbox">
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<div class="box">
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<header>
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<h1>Look for data within your dataset</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">Look for data within your dataset using dropdown menu.</p>
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</section>
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<footer class="js-footer"></footer>
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</div>
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</aside>
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<script>
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// set map with initial zoom and coodinates view
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const map = L.map('map').setView([40, 2], 4);
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let input;
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// disable scroll wheel zoom
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map.scrollWheelZoom.disable();
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// populate dropdown menu
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populateDrowpDown()
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// add basemaps to map
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L.tileLayer('https://{s}.basemaps.cartocdn.com/rastertiles/voyager_nolabels/{z}/{x}/{y}.png', {
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maxZoom: 18
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}).addTo(map);
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// set CARTO client
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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 source = new carto.source.SQL(`
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SELECT * FROM ne_adm0_europe
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`);
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// define CartoCSS code to style data on map
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const style = new carto.style.CartoCSS(`
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#ne_adm0_europe {
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polygon-fill: #3E7BB6;
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polygon-opacity: 0.7;
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line-color: #FFF;
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line-width: 0.5;
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line-opacity: 1;
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}
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#layer::labels {
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text-name: [admin];
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text-face-name: 'DejaVu Sans Book';
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text-size: 10;
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text-fill: #FFFFFF;
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text-label-position-tolerance: 0;
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text-halo-radius: 1;
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text-halo-fill: #6F808D;
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text-dy: -10;
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text-allow-overlap: true;
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text-placement: point;
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text-placement-type: dummy;
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}
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`);
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// create CARTO layer from source and style variables
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const Cartolayer = new carto.layer.Layer(source, style);
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// add CARTO layer to the client
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client.addLayer(Cartolayer);
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// get tile from client and add them to the map object
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client.getLeafletLayer().addTo(map);
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// function to get list of country names to populate dropdown menu
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function populateDrowpDown(){
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return fetch(
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`https://cartojs-test.carto.com/api/v2/sql?format=geojson&q=SELECT the_geom, admin FROM ne_adm0_europe ORDER BY admin ASC`
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).then((resp) => resp.json())
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.then((response) => {
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return response['features'].map(function(feature){
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option = document.createElement("option")
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option.setAttribute("value", feature.properties.admin)
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option.textContent = feature.properties.admin
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document.getElementById("selectDrop").appendChild(option);
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});
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}).catch((error) => {
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console.log(error)
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})
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}
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// when select option from downdown menu, change bounding box of map
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// to geometry of the selected country
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document.getElementById('selectDrop').addEventListener("change", function (e) {
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input = e.currentTarget.selectedOptions[0].attributes[0].value;
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return fetch(`https://cartojs-test.carto.com/api/v2/sql?format=geojson&q=SELECT * FROM ne_adm0_europe where admin Ilike '${input}'`)
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.then((resp) => resp.json())
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.then((response) => {
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geojsonLayer = L.geoJson(response)
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map.fitBounds(geojsonLayer.getBounds());
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})
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});
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</script>
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</body>
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</html>
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