Solved

Update google map center with value from input box

Posted on 2015-02-11
5
81 Views
Last Modified: 2015-02-11
Hi
I have this code:
<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>

   <script src="http://maps.googleapis.com/maps/api/js"></script>
    <script>
function initialize() {
  var mapProp = {
    center:new google.maps.LatLng(51.508742,-0.120850),
    zoom:12,
    mapTypeId:google.maps.MapTypeId.ROADMAP
  };
  var map=new google.maps.Map(document.getElementById("map"),mapProp);
}
google.maps.event.addDomListener(window, 'load', initialize);

    function codeAddress() {
        alert("yes");
                  var address = document.getElementById('address').value;
                  geocoder.geocode( { 'address': address}, function(results, status) {
                    if (status == google.maps.GeocoderStatus.OK) {
                      map.setCenter(results[0].geometry.location);
                    }
                    else {
                      alert('Geocode was not successful for the following reason: ' + status);
                    }
                  });
                }

    </script>
</head>
<body>
      <input id="address" type="textbox">
      <input type="button" value="Geocode" onclick="codeAddress()">
 <style>

    #map {
        height: 500px;
        width: 800px;
        }

    </style>
          <div id="map"></div>

</body>
</html>

Open in new window


The map loads fine and centres on London but when I enter a place in the text field and hit enter it doesn't update the center of the map to the new location. What am I missing?

thanks
0
Comment
Question by:lz7cjc
  • 3
  • 2
5 Comments
 
LVL 38

Accepted Solution

by:
Tom Beck earned 500 total points
ID: 40602976
I see two issues.
1.) variable map is out of scope in the codeAddress function.
2.) the geocoder is not initialized.
<script>
	var map;
function initialize() {
  var mapProp = {
    center:new google.maps.LatLng(51.508742,-0.120850),
    zoom:12,
    mapTypeId:google.maps.MapTypeId.ROADMAP
  };
  map=new google.maps.Map(document.getElementById("map"),mapProp);
}
google.maps.event.addDomListener(window, 'load', initialize);

    function codeAddress() {
        alert("yes");
		 var geocoder = new google.maps.Geocoder();
                  var address = document.getElementById('address').value;
                  geocoder.geocode( { 'address': address}, function(results, status) {
                    if (status == google.maps.GeocoderStatus.OK) {
                      map.setCenter(results[0].geometry.location);
                    }
                    else {
                      alert('Geocode was not successful for the following reason: ' + status);
                    }
                  });
                }

    </script>

Open in new window

0
 

Author Comment

by:lz7cjc
ID: 40603005
fantastic thanks
0
 
LVL 38

Expert Comment

by:Tom Beck
ID: 40603022
Thanks for the points. Do you still need this other question solved?
http://www.experts-exchange.com/Web_Development/WebApplications/Q_28614101.html
0
 

Author Comment

by:lz7cjc
ID: 40603041
No...same one! Do you know how ? Can close it? I do have another one open on responsive design and resizing map, if you want to help me out on that?
0
 
LVL 38

Expert Comment

by:Tom Beck
ID: 40603321
You can just delete the question if there are no posts to it.

I'll take a look at the responsive design question.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Have you tried to learn about Unicode, UTF-8, and multibyte text encoding and all the articles are just too "academic" or too technical? This article aims to make the whole topic easy for just about anyone to understand.
Boost your ability to deliver ambitious and competitive web apps by choosing the right JavaScript framework to best suit your project’s needs.
In this tutorial viewers will learn how to embed videos in a webpage using HTML5. Ensure your DOCTYPE declaration is set to HTML5: "<!DOCTYPE html>": Use the <video> tag to insert a video. Define the src as the URL of your video; this is similar to …
The viewer will learn the benefit of using external CSS files and the relationship between class and ID selectors. Create your external css file by saving it as style.css then set up your style tags: (CODE) Reference the nav tag and set your prop…

930 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

10 Experts available now in Live!

Get 1:1 Help Now