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Learning D3.js Mapping

You're reading from   Learning D3.js Mapping Build stunning maps and visualizations using D3.js

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Product type Paperback
Published in Dec 2014
Publisher
ISBN-13 9781783985609
Length 126 pages
Edition 1st Edition
Languages
Tools
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Authors (2):
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 Newton Newton
Author Profile Icon Newton
Newton
Oscar Villarreal Oscar Villarreal
Author Profile Icon Oscar Villarreal
Oscar Villarreal
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Toc

Table of Contents (14) Chapters Close

Learning D3.js Mapping
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
1. Gather Your Cartographer's Toolbox FREE CHAPTER 2. Creating Images from Simple Text 3. Producing Graphics from Data – the Foundations of D3 4. Creating a Map 5. Click-click Boom! Applying Interactivity to Your Map 6. Finding and Working with Geographic Data 7. Testing Index

Text


The text element, as its name describes, is used to display text in SVG. The basic HTML code to create a text node is as follows:

<text x="250" y="150">Hello world!</text>

It has an x and a y coordinate to tell it where to begin writing in the SVG coordinate system. Styling can be achieved with a CSS class in order to have a clear separation of concerns within our code base. For example, check out the following code:

<text x="250" y="150" class="myText">Hello world!</text>

.myText{
  font-size:22px;
  font-family:Helvetica;
  stroke-width:2;
}

Text also supports rotation in order to provide flexibility when positioning it on the visualization:

<svg width="600" height="600">
        <text x="250" y="150" class="myText" transform="rotate(45,200,0)" font-family="Verdana" font-size="100">Hello world!</text>
</svg>

Some examples are located at http://localhost:8080/chapter-2/text.html and displayed as shown in the following image:

Keep in mind that...

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