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Archived:Static GoogleMaps API in JavaScript

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{{Archived|timestamp=20110805014432|user=[[User:Hamishwillee|<br />----]]|The links to the API provided no longer work, and have been disabled. This may be fixed in future, but for the moment, this article should be considered of little or no use}}
 
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==Overview==
 
==Overview==
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=== Retrieving the map's source ===  
 
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If you like it and want to see these examples, click <nowiki>http://embedded.ufcg.edu.br/~artur/Maps/Maps-Examples.zip</nowiki> to get the first two examples and <nowiki>http://embedded.ufcg.edu.br/~artur/Maps/MapsGPS.wgz</nowiki> to get the GPS example.
 
If you like it and want to see these examples, click <nowiki>http://embedded.ufcg.edu.br/~artur/Maps/Maps-Examples.zip</nowiki> to get the first two examples and <nowiki>http://embedded.ufcg.edu.br/~artur/Maps/MapsGPS.wgz</nowiki> to get the GPS example.

Revision as of 09:56, 28 June 2012

Archived.pngArchived: This article is archived because it is not considered relevant for third-party developers creating commercial solutions today. If you think this article is still relevant, let us know by adding the template {{ReviewForRemovalFromArchive|user=~~~~|write your reason here}}.

The links to the API provided no longer work, and have been disabled. This may be fixed in future, but for the moment, this article should be considered of little or no use

Article Metadata
Article
Created: User:Ar.tur (03 Sep 2009)
Last edited: hamishwillee (28 Jun 2012)
Featured Article
31 Jan
2010

Contents

Overview

Archived: In this article, we create an API to retrieve static maps using the GoogleMaps® system. So, in this way, your work can be so much easier using this API made for JavaScript.

To get this API click: http://embedded.ufcg.edu.br/~artur/Maps/Map.zip and to see the API documentation click http://embedded.ufcg.edu.br/~artur/Maps/docs/index.html.

Examples

Now, we'll see some examples illustrating the use of the Map API.

Showing Maps Automatically

One way to retrieve the map is using the <div> tag. Put all the values you want to your map and use the showMap() tag. It's really necessary that you set the map id with the same value of the div.

<body onload="init();">
<div id=map></div>
</body>
/**
* Embedded Systems and Pervasive Computing Lab
* WRT Effort - http://efforts.embedded.ufcg.edu.br/wrt/
*
* @author Artur
*/

function init() {
map = new Map(40.702147, -74.015794);
map.id = "map";
map.color = "green";
map.name = "y";
map.width = 400;
map.height = 200;
map.showMap();
}

Staticmap-1.gif

Retrieving the map's source

Other way to retrieve the map is using the <img> tag. You set the parameters and using the method getSource() you can define the src value.

<body onload="init();">
<img src="" id=map>
</body>
/**
* Embedded Systems and Pervasive Computing Lab
* WRT Effort - http://efforts.embedded.ufcg.edu.br/wrt/
*
* @author Artur
*/

function init() {
map = new Map(40.702147, -74.015794);
map.color = "blue";
map.name = "x";
map.width = 300;
map.height = 300;
document.getElementById("map").src = map.getSource();
}

So,

Staticmap-2.gif

Using external data source, like GPS

First, getting the GPS information. You define the device operations:

/**
* Embedded Systems and Pervasive Computing Lab
* WRT Effort - http://efforts.embedded.ufcg.edu.br/wrt/
*
* @author Artur
*/

function setup()
{
try {
so = device.getServiceObject("Service.Location", "ILocation");
getLocation();
}
catch (e) {
alert('(006) Error ::setup ' + e);
}
}

After that, the get location method:

function getLocation() {
try {
var updateoptions = new Object();
updateoptions.PartialUpdates = false;
 
var criteria = new Object();
criteria.LocationInformationClass = "GenericLocationInfo";
criteria.Updateoptions = updateoptions;
 
var result = so.ILocation.GetLocation(criteria, result);
var errCode = result.ErrorCode;
if (errCode) {
alert("(005) GPS Error: " + errCode + " " + result.ErrorMessage);
}
} catch (e) {
alert("(004) ::getLocation error: " + e);
}
}

Finally, the call back function:

function result(transId, eventCode, result)
{
var errCode = result.ErrorCode;
if (errCode) {
alert("(003) GPS Error: " + errCode + " " + result.ErrorMessage);
}
else {
map = new Map(result.ReturnValue.Latitude,
result.ReturnValue.Longitude);
map.id = "map";
map.color = "yellow";
map.name = "Artur";
map.width = 500;
map.height = 250;
map.showMap();
}
}

Staticmap-3.gif

If you like it and want to see these examples, click http://embedded.ufcg.edu.br/~artur/Maps/Maps-Examples.zip to get the first two examples and http://embedded.ufcg.edu.br/~artur/Maps/MapsGPS.wgz to get the GPS example.

Footnote

  • This article is authored by Artur Farias (artur [at] embedded [dot] ufcg [dot] edu [br])
  • More information at http://efforts.embedded.ufcg.edu.br/wrt/
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