Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying OpenLayers 2.10 Beginner's Guide
  • Table Of Contents Toc
  • Feedback & Rating feedback
OpenLayers 2.10 Beginner's Guide

OpenLayers 2.10 Beginner's Guide

4.2 (9)
close
close
OpenLayers 2.10 Beginner's Guide

OpenLayers 2.10 Beginner's Guide

4.2 (9)

Overview of this book

Table of Contents (18 chapters)
close
close
OpenLayers 2.10
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Time for Action – using attributions


Let's take a look at the attribution control in action.

  1. To make the Attribution control useful, we must specify an attribution property on our layer objects. So, let's create a WMS layer with this property set to 'Base WMS Layer':

    var wms_base = new OpenLayers.Layer.WMS(
      'OpenLayers WMS',
      'http://vmap0.tiles.osgeo.org/wms/vmap0',
      {layers: 'basic'},
      {attribution: 'Base WMS layer'}
    );
  2. Now, let's add another layer and set the attribution text to 'State Boundary'.

    var wms_state_lines = new OpenLayers.Layer.WMS(
      'State Line Layer',
      'http://vmap0.tiles.osgeo.org/wms/vmap0',
      {layers: 'stateboundary'},
      {attribution: 'State Boundary', isBaseLayer: false,
       opacity: .2}
    );
  3. Finally, add the layers to the map:

    map.addLayers([wms_base, wms_state_lines]);
  4. You should see something like the following, with the layer attribution text at the bottom right hand of the map:

What Just Happened?

You just used the attribution control with two layers containing an attribution...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech
bookmark search playlist font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY