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HERE Maps API - How to create custom graphics marker

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[[Category:Web]][[Category:Browser]][[Category:Nokia Maps]]
+
[[Category:Nokia Maps]][[Category:Code Snippet]][[Category:JavaScript]]
{{Abstract|This article explains how to create a custom graphics marker on Nokia maps. }}
+
{{Abstract|This article explains how to create a custom graphics marker on Nokia Maps  using the GFX library. }} The example creates a transparent ellipse which the user can drag around the map.
  
 
{{ArticleMetaData
 
{{ArticleMetaData
 +
|sourcecode= <!-- Link to example source code e.g. [[Media:The Code Example ZIP.zip]] -->
 +
|installfile= <!-- Link to installation file (e.g. [[Media:The Installation File.sis]]) -->
 +
|devices= Internet Explorer, Firefox, Google Chrome, Opera
 +
|sdk= <!-- SDK(s) built and tested against (e.g. [http://linktosdkdownload/ Nokia Qt SDK 1.1]) -->
 
|platform= Web browser
 
|platform= Web browser
 +
|devicecompatability= <!-- Compatible devices e.g.: All* (must have internal GPS) -->
 +
|dependencies=Nokia Maps 2.2.3
 +
|signing=<!-- Signing requirements - empty or one of: Self-Signed, DevCert, Manufacturer -->
 +
|capabilities= <!-- Capabilities required by the article/code example (e.g. Location, NetworkServices. -->
 +
|keywords= Nokia Maps, JavaScript, markers, graphics
 +
|id= <!-- Article Id (Knowledge base articles only) -->
 +
|language= <!-- Language category code for non-English topics - e.g. Lang-Chinese -->
 +
|translated-by= <!-- [[User:XXXX]] -->
 +
|translated-from-title= <!-- Title only -->
 +
|translated-from-id= <!-- Id of translated revision -->
 +
|review-by=<!-- After re-review: [[User:username]] -->
 +
|review-timestamp= <!-- After re-review: YYYYMMDD -->
 
|update-by=[[User:avnee.nathani]]
 
|update-by=[[User:avnee.nathani]]
 
|update-timestamp=20111231
 
|update-timestamp=20111231
 +
|creationdate=20110621
 +
|author=[[User:Maveric]]
 
}}
 
}}
 
+
{{SeeAlso|
==Introduction==
+
* [http://developer.here.net/javascript_api Nokia Maps API]
 
+
* [http://developer.here.net/apiexplorer/examples/api-for-js/markers/image-markers-using-css-sprite.html Image Markers using Sprites]
In this article we will examine how to create a custom marker with using the GFX library. In the example we will create a transparent ellipse,
+
* [http://developer.here.net/apiexplorer/examples/api-for-js/markers/svg-marker.html Creating a SVG marker]
which the user can drag around the map.
+
}}
  
 
==Prerequisites==
 
==Prerequisites==
Line 17: Line 35:
 
Nokia Maps API supported web browser (basically any modern web browser)
 
Nokia Maps API supported web browser (basically any modern web browser)
  
==Important about Maps credentials==
+
==Important note 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  Nokiai Maps API Developers Guide section "Acquiring API 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
 +
[http://developer.here.net/terms_conditions Terms and Conditions] and check the [http://developer.here.net/web/guest/plans Pricing Plans 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 for free following the instructions  [http://developer.here.net/docs/maps_js/topics/credentials.html#acquiring-credentials here]
  
 
==Implementation==
 
==Implementation==
Line 32: Line 48:
 
==Example code==
 
==Example code==
  
Please note the images are being zoomed to be visible on the current zoom level. However, you would need
+
Please note that the images are zoomed to be visible on the current zoom level. You would need to zoom in more towards the images to see the ones that maybe layered under the top images. Remember to add in your own [[How to Obtain Your Own Nokia appID and Token| AppId and Token]].
to zoom in more towards the images to see the ones that maybe layered under the top images.
+
  
<code java>
+
<code javascript>
<html>
+
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<head>
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<html xmlns="http://www.w3.org/1999/xhtml">
     <script type="text/javascript"
+
     <head>
    src="http://api.maps.nokia.com/2.0.0/jsl.js" charset="utf-8">
+
      <title>Custom Graphics Markers</title>
</script>
+
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
      <link rel="stylesheet" href="style.css" />
+
      <script type="text/javascript"
</head>
+
            src="http://api.maps.nokia.com/2.2.3/jsl.js" charset="utf-8">
<div id="map" style="width:100%; height:80%;"></div>
+
        </script>
<body style = "width:80%; height:80%;">
+
    </head>
</div>
+
    <body>
</body>
+
 
<script type="text/javascript">
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        <div id="mapContainer" style="z-index: -1; left:0px; top:0px; width: 100%; height: 80%; position: absolute;"></div>
+
        <script type="text/javascript">
var map = new nokia.maps.map.Display(document.getElementById("map"),  // new instance of Nokia Maps
+
/////////////////////////////////////////////////////////////////////////////////////
 +
// 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 map = new nokia.maps.map.Display(document.getElementById("mapContainer"),  // new instance of Nokia Maps
 
{
 
{
 
   
 
   
Line 93: Line 119:
 
</script>
 
</script>
 
</body>
 
</body>
</html>
+
</html></code>
</code>
+
 
 
==Screenshot==
 
==Screenshot==
 
[[File:NokiaMapsGraphicsMarker.png|600px]]
 
[[File:NokiaMapsGraphicsMarker.png|600px]]
  
==For more on Nokia Maps API==
+
==For more on the Nokia Maps API==
  
 
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/2.0.0
+
* [http://developer.here.net/javascript_api Nokia Maps API]
 
+
You may also access the interactive Nokia Maps API playground,
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* http://api.maps.nokia.com/playground/index.html
+
 
+
==Tested with==
+
  
* Google Chrome 11.0x
+
You may also access the interactive API explorer
* Mozilla Firefox 5.0
+
* [http://developer.here.net/javascript_api_explorer API explorer]

Revision as of 14:26, 4 January 2013

This article explains how to create a custom graphics marker on Nokia Maps using the GFX library. The example creates a transparent ellipse which the user can drag around the map.

Article Metadata
Tested with
Devices(s): Internet Explorer, Firefox, Google Chrome, Opera
Compatibility
Platform(s): Web browser
Dependencies: Nokia Maps 2.2.3
Article
Keywords: Nokia Maps, JavaScript, markers, graphics
Created: Maveric (21 Jun 2011)
Updated: avnee.nathani (31 Dec 2011)
Last edited: jasfox (04 Jan 2013)

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 Terms and Conditions and check the Pricing Plans 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 for free following the instructions here

Implementation

We will create a map with the set of basic user controls, and center the map with a zoom level. The testLayer refers to a new map Container we create. We then add the container to the map objects and graphicsContext variable will have an instance of the GFX library Graphics object.


Example code

Please note that the images are zoomed to be visible on the current zoom level. You would need to zoom in more towards the images to see the ones that maybe layered under the top images. Remember to add in your own AppId and Token.

<!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>Custom Graphics Markers</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<script type="text/javascript"
src="http://api.maps.nokia.com/2.2.3/jsl.js" charset="utf-8">
</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">
/////////////////////////////////////////////////////////////////////////////////////
// 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 map = new nokia.maps.map.Display(document.getElementById("mapContainer"), // new instance of Nokia 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': 10,
'center':[19.119, 72.8957]
});
 
map.set("baseMapType", map.NORMAL);
 
// Create a test layer
var testLayer = new nokia.maps.map.Container();
map.objects.add(testLayer);
 
var graphicsContext = new nokia.maps.gfx.Graphics();
graphicsContext.beginImage(64,64);
 
// Compress a semi-transparent red color
 
var my_fill_color = nokia.maps.gfx.Color.compress(255, 0, 0, 127);
 
graphicsContext.set("fillColor", my_fill_color);
graphicsContext.set("strokeColor", "#000");
graphicsContext.set("lineWidth", 4);
graphicsContext.drawEllipse(1, 1, 48, 48);
graphicsContext.fill();
graphicsContext.stroke();
var myGfxMarker = new nokia.maps.map.Marker(
{latitude:19.119, longitude:72.8957},
{
icon: new nokia.maps.gfx.GraphicsImage(graphicsContext.getIDL()),
visibility: true,
anchor: new nokia.maps.util.Point(0,0),
draggable: true
}
);
testLayer.objects.add(myGfxMarker);
 
</script>
</body>
</html>

Screenshot

NokiaMapsGraphicsMarker.png

For more on the Nokia Maps API

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

You may also access the interactive API explorer

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