Skip to main content

Only information bubbles...

         After displaying markers and markers with info windows, we will now display only info windows on the map. So our aim becomes, placing an info window on a google map when a user clicks on the map.

         Now, the first question that will pop up in your mind is why do we need such a thing? To answer this question let us consider a simple example. Consider that, when an user clicks on a map, a marker appears with an info window and you want the user to enter some data in a form in the info window and save that data. Now, if the user enters inconsistent data, there would be marker on the map, having no valid information! The marker would then be rendered useless, with no information! Something like a dangling pointer!

          Now, if you haven't understood a word of this; don't worry. You will soon understand the importance of this example! So, without any further discussions, let's have a look at the code!

          Here goes the code...

<html>
<head>
<title>
Google Maps API v3 - Simple Info window example
</title>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false">
</script>
<script type="text/javascript">
var map;
function click_window()
{
             map = new google.maps.Map(document.getElementById("map"),
             {
                         zoom: 5,
                         center: new google.maps.LatLng(22.7964,79.5410),
                         mapTypeId: google.maps.MapTypeId.ROADMAP
             });

             var html = "This is an Info window without a marker.";

             var infowindow = new google.maps.InfoWindow(
             {
                         content: html
             });

             google.maps.event.addListener(map, 'click', function(event)
             {
                         infowindow.setPosition(event.latLng);
                         infowindow.open(map);
              });
}
</script>
</head>
<body onload="click_window()" onunload="GUnload()">
<div id="map" style="width: 100%; height: 100%">
</div>
</body>
</html>


           Copy and paste the above code in an html file and see the map in action! The output will look as seen in the picture below.

Comments

Recommended for You

CSS Text and Font

    In this post today, we will take a look at some of the most interesting CSS text and font properties listed below. text-transform white-space word-break word-spacing word-wrap font-variant Text-transform property:     Let's begin with the text-transform property. The filler text used in all the examples below has been taken from Andy Matthew's filler text generator which is a humorous replacement to the traditional boring lorem ipsum .     The text-transform property will turn your text to uppercase, lowercase and also will capitalize the first character of every word. So now you don't need any javascript to do your bidding. This transformation will be done irrespective of the special characters preceding and following the text characters. The following example will make things much more clear and editable of course =) White-space property:     The next property to explore is the white-space  proper...

KML Layer Example

         Until now, we have covered various examples involving markers, polylines, polygons, i.e. creating overlays. We have also seen other examples to remove overlays! We will now move on to some other concepts. Today we will have a look at what KML is and how to create a KML layer!          Let us first understand what KML is and why is it necessary. KML stands for Keyhole Markup Language which is an XML schema for expressing geographic annotation and visualisation within 2D maps and 3D Earth browsers. The KML file specifies a set of features (place marks, images, polygons, 3D models, textual descriptions, etc.) for display in Google Earth, Maps and Mobile, or any other 3D Earth browser (geobrowser) implementing the KML encoding. Each place always has a latitude and a longitude. Other data can make the view more specific, such as tilt, heading, altitude, which together define a "camera view". ...

Jquery Mobile - Nested Listview

    The Jquery Mobile listview is nothing but a ul-li HTML structure styled to appear as a list on a web browser. The plain ul-li structure can be modified to create the nested listview structure. Take a look at the example below, to understand the nested listview structure of Jquery Mobile.      By nesting child  ul  or  ol  inside list items, you can create nested lists. When a list item with a child list is clicked, the Jquery Mobile framework will show a new page populated with the title of the parent in the header and the list of child elements. These dynamic nested lists are styled with the "b" theme swatch (blue in the default theme) to indicate that you are in a secondary level of navigation.     Lists can be nested multiple levels deep and all pages and linking will be automatically handled by the framework. Note that the page of each nested listview is created when the parent page loads and for each nested page the ...

ES6 101 - Spread operator

Spatial Unlimited changes to The UI Dev After being hosted on blogger 😣 for the last 6 years 📆, this page has finally been moved to Github.io This means a few things for you, dear reader! You will be redirected to the new page shortly! ⏩ ⏩ ⏩ Once crapy HTML is now better looking Markdown ! 😍 😍 The entire blog is a Github repo ! 😍 😍 Spatial Unlimited is now The UI Dev 😍 😍

Jquery Mobile - Customizing the listview

    In the examples on Basic Listviews that we have seen in the previous posts, you must have observed that the listview is sticking to the top of the screen. You will probably not have only the listview in your web application, but anyways you will have some divs before the listview and the listview will stick to the bottom of the div above it. Many a times, you would like to have some blank space between the div before the listview and the actual listview and this is the time when you would start over-riding the default Jquery Mobile CSS.     The example that we will be seeing today is a very basic example of using custom CSS to override the default JQuery Mobile CSS to suite our own web application or website.     As you can see in the result above, the listview has some margins around it. If you take a look at the CSS for this example, you will notice the following CSS. .ui-listview{     margin: 30px 70px 0 !important; }   ...