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Get coordinates from feature with CARTO.js
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<!DOCTYPE html> | |
<html> | |
<head> | |
<title>Get coordinates from feature with CARTO.js</title> | |
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> | |
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/> | |
<link rel="shortcut icon" href="https://cartodb.com/assets/favicon.ico" /> | |
<link rel="stylesheet" href="https://cartodb-libs.global.ssl.fastly.net/cartodb.js/v3/3.15/themes/css/cartodb.css" /> | |
<script src="https://cartodb-libs.global.ssl.fastly.net/cartodb.js/v3/3.15/cartodb.js"></script> | |
<style> | |
html, body, #map { | |
height: 100%; | |
padding: 0; | |
margin: 0; | |
} | |
#wraper-city-selector { | |
position: absolute; | |
top: 20px; | |
left: 20px; | |
} | |
.js-city-selector { | |
width: 175px; | |
} | |
</style> | |
</head> | |
<body> | |
<!-- map div --> | |
<div id="map"></div> | |
<!-- popup div --> | |
<script type="infowindow/html" id="infowindow_template"> | |
<div class="cartodb-popup v2"> | |
<a href="#close" class="cartodb-popup-close-button close">x</a> | |
<div class="cartodb-popup-content-wrapper"> | |
<div class="cartodb-popup-content"> | |
<h4>Latitude</h4> | |
{{#lat}} | |
<p>{{lat}}</p> | |
{{/lat}} | |
{{^lat}} | |
<p>No value</p> | |
{{/lat}} | |
<h4>Longitude</h4> | |
{{#long}} | |
<p>{{long}}</p> | |
{{/long}} | |
{{^long}} | |
<p>No value</p> | |
{{/long}} | |
</div> | |
</div> | |
<div class="cartodb-popup-tip-container"></div> | |
</div> | |
</script> | |
<!-- legend div --> | |
<div class='cartodb-legend category'> | |
<div class="legend-title" style="color:#284a59">Cities</div> | |
<ul> | |
<li><div class="bullet" style="background-color:#5F4690"></div>Populated Place</li> | |
<li><div class="bullet" style="background-color:#1D6996"></div>Admin. 1 Capital</li> | |
<li><div class="bullet" style="background-color:#38A6A5"></div>Admin. 0 Capital</li> | |
<li><div class="bullet" style="background-color:#0F8554"></div>Admin. 1 region Capital</li> | |
<li><div class="bullet" style="background-color:#73AF48"></div>Scientific Station</li> | |
<li><div class="bullet" style="background-color:#EDAD08"></div>Admin. O region Capital </li> | |
<li><div class="bullet" style="background-color:#E17C05"></div>Admin. 0 Capital Alt.</li> | |
<li><div class="bullet" style="background-color:#CC503E"></div>Historic Place</li> | |
<li><div class="bullet" style="background-color:#94346E"></div>Meteorological Station</li> | |
</ul> | |
</div> | |
<script type="text/cartocss" id="style"> | |
#layer { | |
marker-width: 10; | |
marker-fill: ramp([featurecla], (#5F4690, #1D6996, #38A6A5, #0F8554, #73AF48, #EDAD08, #E17C05, #CC503E, #94346E), ("Populated place", "Admin-1 capital", "Admin-0 capital", "Admin-1 region capital", "Scientific station", "Admin-0 region capital", "Admin-0 capital alt", "Historic place", "Meteorological Station"), "="); | |
marker-fill-opacity: 0.7; | |
marker-allow-overlap: true; | |
marker-line-width: 0; | |
} | |
</script> | |
<script type="text/sql" id="query"> | |
SELECT | |
*, | |
st_x(the_geom) as lat, | |
st_y(the_geom) as long | |
FROM | |
populated_places WHERE pop_max > 700000 | |
</script> | |
<script> | |
function main() { | |
// get styles & query | |
style = $("#style").text(), | |
query = $("#query").text(), | |
// declare map variable | |
map = L.map('map', { | |
zoomControl: false, | |
center: [41, -3], | |
zoom: 3 | |
}); | |
// add basemap | |
L.tileLayer('http://{s}.basemaps.cartocdn.com/light_nolabels/{z}/{x}/{y}.png', {attribution: '© <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors, © <a href="http://cartodb.com/attributions">CARTO</a>'}).addTo(map); | |
// add cartodb layer | |
cartodb.createLayer(map, { | |
user_name: 'ramirocartodb', | |
type: 'cartodb', | |
sublayers: [{ | |
sql: query, | |
cartocss: style, | |
}] | |
}).addTo(map) | |
.done(function(layer){ | |
// declare sublayer variable | |
var cityLayer = layer.getSubLayer(0); | |
// set layer interactivity | |
cityLayer.setInteractivity("lat, long"); | |
cityLayer.setInteraction(true); | |
// add popup | |
cdb.vis.Vis.addInfowindow( | |
map, layer, ['lat','long'], | |
{ | |
infowindowTemplate: $('#infowindow_template').html() | |
}); | |
}); | |
} | |
window.onload = main; | |
</script> | |
</body> | |
</html> |
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