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    Vector Map

    Palette

    Documentation

    This demo shows how to color specific map areas using a palette. In the VectorMap UI component, a palette defines a range of colors that are used to paint areas. This range is divided into segments using the value assigned to the colorGroups property. Each segment contributes a color into an array of colors.

    The map in this demo represents the top 40 countries by population. Map areas are colored according to the percentage of population.

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    $(function(){ $("#vector-map").dxVectorMap({ bounds: [-180, 85, 180, -60], layers: { name: "areas", dataSource: DevExpress.viz.map.sources.world, palette: "Violet", colorGroups: [0, 0.5, 0.8, 1, 2, 3, 100], colorGroupingField: "population", customize: function (elements) { $.each(elements, function (_, element) { element.attribute("population", populations[element.attribute("name")]); }); } }, legends: [{ source: { layer: "areas", grouping: "color" }, customizeText: function (arg) { var text; if (arg.index === 0) { text = "< 0.5%"; } else if (arg.index === 5) { text = "> 3%"; } else { text = arg.start + "% to " + arg.end + "%"; } return text; } }], tooltip: { enabled: true, customizeTooltip: function(arg) { if (arg.attribute("population")) { return { text: arg.attribute("name") + ": " + arg.attribute("population") + "% of world population" }; } } } }); });
    <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" /> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script> <script>window.jQuery || document.write(decodeURIComponent('%3Cscript src="js/jquery.min.js"%3E%3C/script%3E'))</script> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.5/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.5/css/dx.light.css" /> <script src="https://cdn3.devexpress.com/jslib/20.2.5/js/dx.all.js"></script> <script src="https://cdn3.devexpress.com/jslib/20.2.5/js/vectormap-data/world.js"></script> <script src="https://cdn3.devexpress.com/jslib/20.2.5/js/vectormap-data/africa.js"></script> <script src="https://cdn3.devexpress.com/jslib/20.2.5/js/vectormap-data/canada.js"></script> <script src="https://cdn3.devexpress.com/jslib/20.2.5/js/vectormap-data/eurasia.js"></script> <script src="https://cdn3.devexpress.com/jslib/20.2.5/js/vectormap-data/europe.js"></script> <script src="https://cdn3.devexpress.com/jslib/20.2.5/js/vectormap-data/usa.js"></script> <script src="data.js"></script> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src="index.js"></script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="vector-map"></div> </div> </body> </html>
    #vector-map { height: 440px; }
    var populations = { "China": 19, "India": 17.4, "United States": 4.44, "Indonesia": 3.45, "Brazil": 2.83, "Pakistan": 2.62, "Nigeria": 2.42, "Bangladesh": 2.18, "Russia": 2.04, "Japan": 1.77, "Mexico": 1.67, "Philippines": 1.39, "Vietnam": 1.25, "Ethiopia": 1.23, "Egypt": 1.21, "Germany": 1.13, "Iran": 1.08, "Turkey": 1.07, "Congo (Kinshasa)": 0.94, "France": 0.92, "Thailand": 0.9, "United Kingdom": 0.89, "Italy": 0.85, "Burma": 0.84, "South Africa": 0.74, "S. Korea": 0.7, "Colombia": 0.66, "Spain": 0.65, "Tanzania": 0.63, "Kenya": 0.62, "Ukraine": 0.6, "Argentina": 0.59, "Algeria": 0.54, "Poland": 0.54, "Sudan": 0.52, "Canada": 0.49, "Uganda": 0.49, "Iraq": 0.47, "Morocco": 0.46, "Uzbekistan": 0.43 };