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HERE Maps API - How to draw a circle

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m (Oskar Bukolt - Update keywords + minor text alteration + versions)
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|signing=<!-- Signing requirements - empty or one of: Self-Signed, DevCert, Manufacturer -->
 
|signing=<!-- Signing requirements - empty or one of: Self-Signed, DevCert, Manufacturer -->
 
|capabilities= <!-- Capabilities required by the article/code example (e.g. Location, NetworkServices. -->
 
|capabilities= <!-- Capabilities required by the article/code example (e.g. Location, NetworkServices. -->
|keywords= <!-- APIs, classes and methods (e.g. QSystemScreenSaver, QList, CBase -->
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|keywords= Nokia Maps, JavaScript, shapes
 
|id= <!-- Article Id (Knowledge base articles only) -->
 
|id= <!-- Article Id (Knowledge base articles only) -->
 
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</code>
 
</code>
  
In the example below, we will create new circles with an increasing radius and add them all one by one to the map display in a loop.
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In the example below, we create a simple circle with coloured fill and outline.
  
  
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Please check out the Nokia Maps API full documentation and API reference here:
 
Please check out the Nokia Maps API full documentation and API reference here:
* http://api.maps.nokia.com/
+
* http://api.maps.nokia.com/en/maps/intro.html
  
 
You may also access the interactive Nokia Maps API playground,
 
You may also access the interactive Nokia Maps API playground,
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==Tested with==
 
==Tested with==
  
* Google Chrome 11.0x
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* Google Chrome 20.x
* Mozilla Firefox 5.0
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* Mozilla Firefox 12.x

Revision as of 18:45, 16 July 2012

This article explains how to draw a circle on Nokia Maps.

Article Metadata
Tested with
Devices(s): Internet Explorer, Firefox, Google Chrome, Safari
Compatibility
Platform(s): Web browser
Dependencies: Nokia Maps 2.2.1
Article
Keywords: Nokia Maps, JavaScript, shapes
Created: Maveric (21 Jun 2011)
Updated: avnee.nathani (31 Dec 2011)
Last edited: Oskar Bukolt (16 Jul 2012)

Contents

Prerequisites

Nokia Maps API supported web browser (basically any modern web browser)

Important note about maps credentials

Nokia provides several services options within the Maps API offering. The service is free to use, but you must obtain and use authentication and authorization credentials to use the services. Please read the Location API Business Models and Usage Restrictions page to decide which business model best fits your needs. Authentication requires unique Maps API credentials, namely an AppId and a token. You can get these credentials free from the Nokia Developer API Registration page.

Implementation

The API definition:

new nokia.maps.map.Circle (center, radius, props)

In the example below, we create a simple circle with coloured fill and outline.


Example code

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Circle</title>
<meta http-equiv="X-UA-Compatible" content="IE=7; IE=EmulateIE9"/>
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<script type="text/javascript" charset="UTF-8"
src="http://api.maps.nokia.com/2.2.1/jsl.js?with=all">
</script>
</head>
<body>
 
<div id="mapContainer" style="z-index: -1; left:0px; top:0px; width: 100%; height: 80%; position: absolute;"></div>
<script type="text/javascript">
/*<![CDATA[*/
/////////////////////////////////////////////////////////////////////////////////////
// Don't forget to set your API credentials
//
// Replace with your appId and token which you can obtain when you
// register on http://api.developer.nokia.com/
//
nokia.Settings.set( "appId", "YOUR APP ID GOES HERE");
nokia.Settings.set( "authenticationToken", "YOUR AUTHENTICATION TOKEN GOES HERE");
 
//
/////////////////////////////////////////////////////////////////////////////////////
 
var mapContainer = document.getElementById("mapContainer");
 
var map = new nokia.maps.map.Display(mapContainer, {
 
center: [19.119, 72.8957],
zoomLevel: 4,
components:[new nokia.maps.map.component.Behavior()]
});
 
 
map.objects.add(new nokia.maps.map.Circle(
// The center or the circle will be on longitude 50.0361, latitude 8.5619
[19.15, 73.91],
// The radius of the circle in meters
450000,
{
 
pen: {
strokeColor: "#829f",
lineWidth: 2
},
brush: {
color: "#829f"
}
 
}
));
/*]]>*/
</script>
</body>
</html>

Screenshot

NokiaMapsCircle.png

For more on Nokia Maps API

Please check out the Nokia Maps API full documentation and API reference here:

You may also access the interactive Nokia Maps API playground,

Tested with

  • Google Chrome 20.x
  • Mozilla Firefox 12.x
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