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Revision as of 16:23, 10 February 2012 by jasfox (Talk | contribs)

Using the RESTful Map API together with HERE Maps API

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In short the Nokia Maps APIs allow you to integrate Nokia maps into your web pages. The Nokia Maps API offers a variety of essential map functionality out of the box like, panning, zooming and support for W3C positioning inbuilt in modern browsers. However in some situations it is just enough to show the map image. This is where the Map Image API comes into play.

The Map Image API is light weight, but full-blown, offering for easy access of map data. Map data is served as a single image, which makes it highly compatible with variety of devices. You don’t even need JavaScript so show the map.

To maximize the compatibility and to potentially reduce initial page load time, you can combine these two APIs. JavaScript is not supported on some browsers of mobile devices, which is not an optimal situation if you are creating content for a mobile friendly website. One way to circumvent this problem is by having a plain map image served up on the page initially. Then only after the user clicks on the map the interactive Map is loaded. In this way you can potentially save on initial load time and be reassured that all of your visitors are able to see the map.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=7; IE=EmulateIE9" />
<title>Nokia Map Image with Nokia Map API for JavaScript</title>
<!-- By default we add ?kml=auto&heatmap=auto to auto load KML & heatmap package remove params if package are not needed -->
<script type="text/javascript" charset="UTF-8" src="http://api.maps.nokia.com/2.1.0/jsl.js?kml=auto&heatmap=auto"></script>
<script type="text/javascript">
 
// Don't forget to set your API credentials
// nokia.maps.util.ApplicationContext.set({"appId": "YOUR APPID", "authenticationToken": "YOUR TOKEN"});
 
 
function showFullMap(){
var mapContainer = document.getElementById("mapContainer");
mapContainer.innerHTML = "";
// Create a map inside the map container DOM node
var map = new nokia.maps.map.Display(mapContainer, {
zoomLevel: 4, //zoom level for the map
center: [50.5,15.5], // center coordinates
components : [
new nokia.maps.map.component.ZoomBar(),
new nokia.maps.map.component.Behavior(),
new nokia.maps.map.component.TypeSelector(),
new nokia.maps.map.component.Overview(),
new nokia.maps.map.component.ScaleBar()]
});
}
</script>
</head>
<body>
<div id="mapContainer" style="width:540px; height:334px;">
<img src="http://m.nokia.me/?c=50.5,15.5&h=334&w=540&z=4&nord&nodot&sb=k" onclick="showFullMap();" />
</div>
</body>
</html>


Article Metadata
Compatibility
Platform(s): Web
Platform Security
Capabilities: Nokia Maps
Article
Keywords: Nokia Maps, JavaScript,
Created: isalento (17 Jan 2011)
Updated: jasfox (05 Jan 2012)
Last edited: jasfox (10 Feb 2012)
301 page views in the last 30 days.

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