Populate Data in JavaScript (ES5) Maps control

30 Jul 2021 / 2 minutes to read

This section explains how to populate data inputs and provide it to the Maps component.

Shape Data

The Shape Data collection describing geographical shape information can be obtained from GEOJSON format shapes.

.\ Maps_GeoJSON\All Countries with States

You can assign the complete contents in “WorldMap” file to new JSON object. For better understanding, a JSON file “worldMap.json” is already created to store JSON data in JSON object “world-map”.

Data Binding

The Maps control supports data binding with the dataSource property in the shape layers.

Properties

The following properties in shape layers is be used for binding data in Maps control,

* dataSource
* shapeDataPath
* shapePropertyPath

Data Source

The dataSource property accepts the collection values as input. For example, you can provide the list of objects as input.

Shape Data Path

The shapeDataPath property is used to refer the data ID in DataSource. For example, population MapData contains data ids ‘Name’ and ‘Population’. The shapeDataPath and the shapePropertyPath properties are related to each other (refer to shapePropertyPath for more details).

Shape Property Path

The shapePropertyPath property is similar to the shapeDataPath that refers to the column name in the data property of shape layers to identify the shape. When the values of the shapeDataPath property in the dataSource property and the value of shapePropertyPath in the data property match, then the associated object from the dataSource is bound to the corresponding shape.

The datasource is populated with JSON data relative to shape data and stored in JSON object. The USA population as datasource is used for better understanding.

Refer both shape data and datasource as illustrated in the following code example.

Source

Preview

index.js

index.html

var map = new ej.maps.Maps({
   layers: [
   {
       shapeData: world_map,
        shapeDataPath: 'name',
        shapePropertyPath: 'name',
        dataSource: [ {
                'code': 'AF',
                'value': 53,
                'name': 'Afghanistan',
                'population': 29863010,
                'density': 119
            },
            {
                'code': 'AL',
                'value': 117,
                'name': 'Albania',
                'population': 3195000,
                'density': 111
            },
            {
                'code': 'DZ',
                'value': 15,
                'name': 'Algeria',
                'population': 34895000,
                'density': 15
            },
            {
                'code': 'AO',
                'value': 15,
                'name': 'Angola',
                'population': 18498000,
                'density': 15
            },
            {
                'code': 'AR',
                'value': 15,
                'name': 'Argentina',
                'population': 40091359,
                'density': 14
            },
            {
                'code': 'AM',
                'value': 109,
                'name': 'Armenia',
                'population': 3230100,
                'density': 108
            },]

   }]
});
map.appendTo('#element');

<!DOCTYPE html><html lang="en"><head>
    <title>EJ2 Maps</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    
    <script src="world-map.js"></script>
    <script src="usa.js"></script>
    <script src="data.js"></script>
    <script src="california.js"></script>
    <script src="texas.js"></script>
    <script src="africa_continent.js"></script>
    <script src="africa.js"></script>
    <script src="cluster.js"></script>
    
<script src="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" type="text/javascript"></script>
</head>

<body>
    
    <div id="container" style="height: 500px; width: 700px">
        <div id="element"></div>
    </div>
    <svg height="150" width="400">
        <defs>
            <linearGradient id="grad1" x1="0%" y1="0%" x2="0%" y2="100%">
                <stop offset="0%" style="stop-color:#C5494B;stop-opacity:1"></stop>
                <stop offset="100%" style="stop-color:#4C134F;stop-opacity:1"></stop>
            </linearGradient>
        </defs>
    </svg>
    <!-- annotation content -->
    <div id="maps-annotation" style="display: none;">
        <div id="annotation">
            <div>
                <p style="margin-left:10px;font-size:13px;font-weight:500">Facts about Africa</p>
            </div>
            <hr style="margin-top:-3px;margin-bottom:10px;border:0.5px solid #DDDDDD">
            <div>
                <ul style="list-style-type:disc; margin-left:-20px;margin-bottom:2px; font-weight:400">
                    <li>Africa is the second largest and second most populated continent in the world.</li>
                    <li style="padding-top:5px;">Africa has 54 sovereign states and 10 non-sovereign territories.</li>
                    <li style="padding-top:5px;">Algeria is the largest country in Africa, where as Mayotte is the smallest.</li>
                </ul>
            </div>
        </div>
    </div>
    <style>
        #annotation {
            color: #DDDDDD;
            font-size: 12px;
            font-family: Roboto;
            background: #3E464C;
            margin: 20px;
            padding: 10px;
            -webkit-border-radius: 2px;
            -moz-border-radius: 2px;
            border-radius: 2px;
            width: 300px;
            -moz-box-shadow: 0px 2px 5px #666;
            -webkit-box-shadow: 0px 2px 5px #666;
            box-shadow: 0px 2px 5px #666;
        }
        .country-label {
            color: white;
            font-size: 25px;
        }
    </style>


<script>
var ele = document.getElementById('container');
if(ele) {
    ele.style.visibility = "visible";
 }   
        </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

Binding complex data source

You can bind the data field from data source to the maps in two different ways.

Bind the field name directly to the properties as shapeDataPath, colorValuePath, valuePath and shapeValuePath.
Bind the field name as data.field to the properties as shapeDataPath, colorValuePath, valuePath and shapeValuePath.

Refer complex support for data source as illustrated in the following code example.

Source

Preview

index.js

index.html

var map = new ej.maps.Maps({
   layers: [
   {
        shapeData: world_map,
        shapeDataPath: 'data.continent',
        shapePropertyPath: 'continent',
        dataSource: [ 
            { "Continent": "North America", 'color': '#71B081', 
            data: { "continent": "North America", 'color': '#71B081' } 
            },
            { "Continent": "South America", 'color': '#5A9A77', 
            data: { "continent": "South America", 'color': '#5A9A77' } 
            },
            { "Continent": "Africa", 'color': '#498770', 
            data: { "continent": "Africa", 'color': '#498770' } 
            },
            { "Continent": "Europe", 'color': '#39776C', 
            data: { "continent": "Europe", 'color': '#39776C' } 
            },
            { "Continent": "Asia", 'color': '#266665', 
            data: { "continent": "Asia", 'color': '#266665' } 
            },
            { "Continent": "Australia", 'color': '#124F5E', 
            data: { "continent": "Australia", 'color': '#124F5E' } 
            }
        ],
        shapeSettings: {
            colorValuePath: 'data.color',
        },
        tooltipSettings: {
            visible: true,
            valuePath: 'data.continent'
        },
        bubbleSettings: [
            {
                visible: true,
                valuePath: 'data.value',
                colorValuePath: 'data.color',
                animationDuration: 0,
                minRadius: 20,
                maxRadius: 90,
                opacity: 0.8,
                dataSource: [
                    { 'name': 'India', 'value': 18.89685398845257, 'population': 391292635,
                    data: { 'color': 'red', 'population': 391292635, 'value': 189685398845257 } 
                    }
                ],
                tooltipSettings: {
                    visible: true,
                    valuePath: 'data.population',
                    template:"<div>${data.population}</div>"
                },
            },
        ],
        markerSettings: [
            {
                visible: true,
                dataSource: [
                    { latitude: 37.6276571, longitude: -122.4276688, name: 'San Bruno', 
                    data: { x: 37.6276571, y: -122.4276688, name: 'San Bruno', shape: 'Pentagon', 
                    color: 'red', imageUrl: 'images/ballon.png' } 
                    },
                    { latitude: 33.5302186, longitude: -117.7418381, name: 'Laguna Niguel',
                    data: { x: 33.5302186, y: -117.7418381, name: 'Laguna Niguel', color: 'blue', 
                    shape: 'Pentagon', imageUrl: 'images/ballon.png' } 
                    }
                ],
                shapeValuePath: "data.shape",
                colorValuePath: "data.color",
                height: 20,
                width: 20,
                offset: {
                    y: -10,
                    x: 0
                },
                longitudeValuePath: "data.y",
                latitudeValuePath: "data.x",
                tooltipSettings: {
                    visible: true,
                    valuePath: 'data.name',
                    format: "${data.name}: ${data.x} : ${data.y}"
                },
                animationDuration: 0
            },
        ]
    }]
}, '#element');

<!DOCTYPE html><html lang="en"><head>
    <title>EJ2 Maps</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    
    <script src="world-map.js"></script>
    <script src="usa.js"></script>
    <script src="data.js"></script>
    <script src="california.js"></script>
    <script src="texas.js"></script>
    <script src="africa_continent.js"></script>
    <script src="africa.js"></script>
    <script src="cluster.js"></script>
    
<script src="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" type="text/javascript"></script>
</head>

<body>
    
    <div id="container" style="height: 500px; width: 700px">
        <div id="element"></div>
    </div>
    <svg height="150" width="400">
        <defs>
            <linearGradient id="grad1" x1="0%" y1="0%" x2="0%" y2="100%">
                <stop offset="0%" style="stop-color:#C5494B;stop-opacity:1"></stop>
                <stop offset="100%" style="stop-color:#4C134F;stop-opacity:1"></stop>
            </linearGradient>
        </defs>
    </svg>
    <!-- annotation content -->
    <div id="maps-annotation" style="display: none;">
        <div id="annotation">
            <div>
                <p style="margin-left:10px;font-size:13px;font-weight:500">Facts about Africa</p>
            </div>
            <hr style="margin-top:-3px;margin-bottom:10px;border:0.5px solid #DDDDDD">
            <div>
                <ul style="list-style-type:disc; margin-left:-20px;margin-bottom:2px; font-weight:400">
                    <li>Africa is the second largest and second most populated continent in the world.</li>
                    <li style="padding-top:5px;">Africa has 54 sovereign states and 10 non-sovereign territories.</li>
                    <li style="padding-top:5px;">Algeria is the largest country in Africa, where as Mayotte is the smallest.</li>
                </ul>
            </div>
        </div>
    </div>
    <style>
        #annotation {
            color: #DDDDDD;
            font-size: 12px;
            font-family: Roboto;
            background: #3E464C;
            margin: 20px;
            padding: 10px;
            -webkit-border-radius: 2px;
            -moz-border-radius: 2px;
            border-radius: 2px;
            width: 300px;
            -moz-box-shadow: 0px 2px 5px #666;
            -webkit-box-shadow: 0px 2px 5px #666;
            box-shadow: 0px 2px 5px #666;
        }
        .country-label {
            color: white;
            font-size: 25px;
        }
    </style>


<script>
var ele = document.getElementById('container');
if(ele) {
    ele.style.visibility = "visible";
 }   
        </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

Contents

Shape Data
Data Binding
Properties
Data Source
Shape Data Path
Shape Property Path
Binding complex data source

Contents

Shape Data
Data Binding
Properties
Data Source
Shape Data Path
Shape Property Path
Binding complex data source

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