HERE Maps API - How to pan the map
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{{Abstract|This article explains how to use the panning method on the map. }} | {{Abstract|This article explains how to use the panning method on 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= <!-- Devices tested against - e.g. ''devices=Nokia 6131 NFC, Nokia C7-00'') --> | ||
| + | |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= <!-- Any other/external dependencies e.g.: Google Maps Api v1.0 --> | ||
| + | |signing=<!-- Signing requirements - empty or one of: Self-Signed, DevCert, Manufacturer --> | ||
| + | |capabilities= <!-- Capabilities required by the article/code example (e.g. Location, NetworkServices. --> | ||
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|update-by=[[User:avnee.nathani]] | |update-by=[[User:avnee.nathani]] | ||
|update-timestamp=20111231 | |update-timestamp=20111231 | ||
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== Introduction == | == Introduction == | ||
Revision as of 02:18, 2 January 2012
This article explains how to use the panning method on the map.
Article Metadata
Compatibility
Platform(s): Web browser
Article
Created: Maveric
(27 Jun 2011)
Updated: avnee.nathani
(31 Dec 2011)
Last edited: hamishwillee
(02 Jan 2012)
Contents |
Introduction
This article contains an example that you can use to study how the Nokia Maps API handles panning of the map. Feel free to modify and utilize whole or partial for your own purposes!
Prerequistites
Nokia Maps API supported web browser (basically any modern browser should do).
Example code
This example will start panning the map to the right, then after a moment changes direction to the left and continues forever(?) ;) Unless you stop it by pressing the button and clearing the timer and interval settings.
<script type="text/javascript">
//Globals
var myInterval = 0;
var myTimer;
var map_start_x = 100;
var map_start_y = 100;
var map_end_x = 120;
var map_end_y = 100;
var myMap;
if (document.addEventListener)
document.addEventListener("DOMContentLoaded", all_is_ready, false);
function all_is_ready(){
alert("Click OK to start the panning.");
myMap = new nokia.maps.map.Display(document.getElementById("map"),
{
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: 3,
center: [19.119, 72.8957]
});
timerLauncher();
}
function timerLauncher()
{
// Start the timer
myInterval = setInterval ("panTheMap()", 1000);
}
function panTheMap()
{
map_start_x = map_start_x + 1;
map_start_y = map_start_y + 1;
map_end_x = map_end_x - 1;
map_end_y = map_end_y + 1;
document.getElementById("showCoords").innerHTML = "("+map_start_x+","+map_start_y+","+map_end_x+","+map_end_y+")";
myMap.pan(map_start_x, map_start_y, map_end_x, map_end_y);
myTimer = setTimeout ('document.getElementById("showCoords").innerHTML = ""', 500);
}
function stopPanning()
{
clearTimeout(myTimer);
clearInterval(myInterval);
alert("Timer and interval cleared. Example finished. Reload page to run again.");
}
</script>
<html>
<head>
<script type="text/javascript"
src="http://api.maps.nokia.com/2.0.0/jsl.js" charset="utf-8">
</script>
</head>
<body>
<center>
<div id="map" style="width:80%; height:80%;"></div>
<div id="showCoords" style="height: 2.0em; font-size: 2em; color: blue;"></div>
<FORM>
<INPUT type="button" value="STOP panning" name="button6" onClick="stopPanning()">
</FORM>
</center>
</body>
</html>
Screenshot
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,
Summary
Using the map panning feature you could create e.g. a game, where the map is moving and the user should e.g. find something on the map and click it before the area vanishes from sight, just an idea ;) develop your own =)? Side scrolling game...? =)
