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OpenLayers 2.10 Beginner's Guide

You're reading from   OpenLayers 2.10 Beginner's Guide Create, optimize, and deploy stunning cross-browser web maps with the OpenLayers JavaScript web mapping library

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Product type Paperback
Published in Mar 2011
Publisher
ISBN-13 9781849514125
Length 372 pages
Edition Edition
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Toc

Table of Contents (18) Chapters Close

OpenLayers 2.10
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1. Getting Started with OpenLayers FREE CHAPTER 2. Squashing Bugs With Firebug 3. The 'Layers' in OpenLayers 4. Wrapping Our Heads Around Projections 5. Interacting with Third Party APIs 6. Taking Control of Controls 7. Styling Controls 8. Charting the Map Class 9. Using Vector Layers 10. Vector Layer Style Guide 11. Making Web Map Apps Index

Time for Action – styling controls


Let's work with styling some OpenLayers controls. We won't be creating a theme here; instead, we'll just link to an external CSS file which will overwrite the default styles of the elements we wish to style.

  1. Let's start off with creating a new page. We're going to also put all our custom styles in a file called control_style.css. So, whenever we add a style, be sure to put it in the control_style.css. Also, make sure to include the CSS file in the <head> section with:

    <link rel='stylesheet' href='control_style.css' />
  2. Now, let's create our map object. We'll specify the controls array when we instantiate it since we do not want the PanZoombar control in this example. We also are not using a custom theme (we are just overriding styles with the external CSS file), but if we were we would specify the theme property as well.

    map = new OpenLayers.Map('map_element', {
      controls: [new OpenLayers.Control.Navigation()]
    });
  3. Alright, let's create some controls...

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