Wrapping the date line options

There might be situations where you do not want your map ends at -180 or +180 longitude degrees as you are working in that area and need a continuous map. For example, imagine a map where on the left you can see the end of Russia and at the right Alaska, as shown in the following screenshot:

This property is a common attribute from base class OpenLayers.Layer and is called the wrapDateLine.

How to do it...

To wrap the date line options, perform the following steps:

1. Create an HTML file and add the OpenLayers dependency.

2. In the beginning, we have put a checkbox to activate/deactivate the wrap data line feature, as follows:

   Wrap date line: <input dojoType="dijit.form.CheckBox" checked onChange="wrapDateLine" /> <br/>

   Note

   Do not worry about the dojoType="dijit.form.CheckBox" attribute, it is because the Dojo Toolkit (http://dojotoolkit.org) is used in the sample.

   Think of it as a normal HTML input element.

3. Next, we have added the DOM element used to render the...