Navigation Lines in JavaScript Maps control

JavaScript

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04 Aug 2021 / 2 minutes to read

The navigation lines are used to denote path between two locations. We can use this feature to draw the flight or train or sea routes.

Customization

You can customize the following properties in the navigation lines by modifying their default values in navigationlineSettings

Color - Specifies the color of navigation line.
Dash array - Specifies the type of dash array line.
Width - Specifies the line width.
Angle - Specifies the navigation line angle.
Highlight settings - Customizes the opacity, border, and fill color when the cursor hovers over it.
Selection settings - Customizes the opacity, border, and fill color when the line is selected.

Following example shows rendering the path between two locations using latitudes and longitudes.

Yon can customize the navigation line color, dashArray, width and angle by modifying their default values in navigationLineSettings.

Refer the below code snippet to navigate line between two cities in World map. Import usmap geo json data from world_map.ts file. Import the NavigationLine Module and Inject into the Maps using Maps.Inject(NavigationLine). Provide two locations latitude and longitude values to navigationLineSettings.

Source

Preview

index.ts

index.html

import { world_map } from './world-map.ts';
import { Maps, NavigationLine } from '@syncfusion/ej2-maps';
Maps.Inject(NavigationLine);
let map: Maps = new Maps({
layers: [{
    navigationLineSettings: [{
        visible: true,
        latitude: [40.7128, 36.7783],
        longitude: [-74.0060, -119.4179],
        color: 'black',
        angle: 90,
        width: 2,
        dashArray: '4'
    }],
    shapeData: world_map,
}]
});
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="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <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="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <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 offset="100%" style="stop-color:#4C134F;stop-opacity:1" />
            </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>
</body>

</html>

Enabling the arrows

You can enable the arrows in the navigation line using arrowSettings.showArrow API, also you can customize following properties in arrow

color - Specifies the color of the arrow
offset - Specifies the arrow’s offset position
position - Specifies the arrow position to start or end line
size - Specifies the arrow size in pixel

Source

Preview

index.ts

index.html

import { world_map } from './world-map.ts';
import { Maps, NavigationLine } from '@syncfusion/ej2-maps';
Maps.Inject(NavigationLine);
let map: Maps = new Maps({
layers: [{
    navigationLineSettings: [{
        visible: true,
        latitude: [40.7128, 36.7783],
        longitude: [-74.0060, -119.4179],
        color: 'black',
        angle: 90,
        width: 2,
        dashArray: '4',
        arrowSettins: {
            showArrow: true,
            size: 15,
            position: 'Start'
        }
    }],
    shapeData: world_map,
}]
});
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="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <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="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <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 offset="100%" style="stop-color:#4C134F;stop-opacity:1" />
            </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>
</body>

</html>

Refer the API for Navigation Lines feature.

Contents

Customization
Enabling the arrows

Contents

Customization
Enabling the arrows

Please provide additional information

Thank you for your feedback and comments.We will rectify this as soon as possible!