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Revision as of 12:47, 31 December 2011 by avnee.nathani (Talk | contribs)

HERE Maps API - How to draw a rectangle

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Article Metadata
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Platform(s): Web browser
Article
Created: (31 Dec 2011)
Updated: avnee.nathani (31 Dec 2011)
Last edited: avnee.nathani (31 Dec 2011)

Contents

Introduction

In this article is shown how to draw a rectangle on Nokia Maps.

Prerequisites

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

Important about Maps credentials

With Nokia Maps API you can start without having any credentials given, but you might face a performance gap. In order to get the full potential out of the offering, you must get the credentials that authenticate your application against the Services. Please read through the Location API.

For more information on how to obtain the credentials, please start with the Nokia Maps API Developers Guide section "Acquiring API credentials"

Implementation

API Definition of Rectangle:

    new nokia.maps.map.Rectangle (bounds, props)

Definition for the BoundingBox, used to form the rectangle:

new nokia.maps.geo.BoundingBox (topLeft, [bottomRight, [skipValidation]])

Example code

This is a full example with HTML and JavaScript.

<html>
<head>
<script type="text/javascript"
src="http://api.maps.nokia.com/2.0.0/jsl.js" charset="utf-8">
</script>
</head>
<body>
<div id="map" style="width:100%; height:80%;"></div>
</body>
<script type="text/javascript">
 
var myBoundingBox = new nokia.maps.geo.BoundingBox ([53.1, 13.1], [43.1, 40.1]);
 
var map = new nokia.maps.map.Display(document.getElementById("map"), // new instance of Ovi Maps
{
components: [ new nokia.maps.map.component.Behavior(),
new nokia.maps.map.component.ZoomBar(),
new nokia.maps.map.component.Overview(),
new nokia.maps.map.component.TypeSelector(),
new nokia.maps.map.component.ScaleBar()],
'zoomLevel': 4,
'center':[53.1, 13.1]
});
 
map.set("baseMapType", map.NORMAL);
 
map.objects.add(
new nokia.maps.map.Rectangle(myBoundingBox,
{
precision: 36,
simplify: 16,
fillColor: "FFFFCC",
color: "E8FA75",
width: 8
}));
 
</script>
</body>
</html>

Screenshot

NokiaMapsRectangleReal.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 11.0x
  • Mozilla Firefox 5.0
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