Perl Graphics Programming

Name: Perl Graphics Programming
Author: Shawn Wallace

Creating SVG, SWF (Flash), JPEG and PNG files with Perl

Paperback Engels 2002 9780596002190

Gratis verzonden | Verwachte levertijd ongeveer 16 werkdagen

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Samenvatting

Graphics programmers aren't the only ones who need to be proficient with graphics. Web and applications programmers know that a dull web page can be quickly transformed into one that's interesting and lively with the use of well-planned graphics. And fortunately, you don't need the skills of a fulltime graphics programmer to use graphics effectively. From access counters and log report graphs to scientific plots and on-the-fly animated GIFs, graphics scripting is within the grasp of most web programmers. Using open source software, like Perl, you have the power to dynamically generate graphics based on user input and activity, easily manipulate graphics content, and optimize graphics for compression and quality.

Geared toward Perl users and webmasters, 'Perl Graphics Programming' focuses on open-source scripting programs that manipulate graphics files for use on the Web. The book demystifies the manipulation of graphics formats for newcomers to the Web with a practical, resource-like approach.

With this book you'll learn to:
- Generate dynamic web graphics with charts, tables, and buttons
- Automate graphics tasks (thumbnails and borders)
- Create dynamics web documents (PDF, Postscript)
- Produce rich Internet experiences with Flash and SVG

You'll begin with a tour of the most common web graphic file formats--PNG, JPEG, GIF, SWF, SVG, Postscript and PDF--then you'll explore the most powerful tools and Perl modules available for manipulating these graphics, such as GD, PerlMagick, and GIMP. Included in this part of the book is a thorough description of the Ming module for creating on-the-fly Flash files. Next, a "cookbook" section includes practical, all purpose recipes: GIF animation, generating images within a dynamic application, communicating between SWF front-end and Perl back-end, XSLT transformations, compression, and much more.

Perl programmers naturally turn to Perl to tackle whatever challenge they have at hand, and graphics programming is no exception. Perl Graphics Programming provides all the tools you need to begin programming and designing graphics for the Web immediately. This book will change how you think about generating and manipulating graphics for the Web.

Specificaties

ISBN13:9780596002190

Taal:Engels

Bindwijze:paperback

Aantal pagina's:478

Uitgever:O'Reilly

Druk:0

Hoofdrubriek:IT-management / ICT

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Preface

Part I. Raster Images and Web Graphics

1. Creating Graphics with Perl
Introduction to File Formats
Color
Raster File Formats
Vector Graphic File Formats
Document File Formats
References

2. On-the-Fly Graphics with GD
GD Basics
Sample GD Applications
Reading and Writing Methods
Getting and Setting General Information
Color Table Manipulation Methods
Brushes, Styles, and Tiles
Copying and Transforming Images
Image Drawing and Manipulation Methods
Strings and Fonts
Polygon Methods

3. Graphics Scripting with Image::Magick
What Is ImageMagick?
Using Image::Magick
Sample Image::Magick Applications
Reading and Writing Images
Retrieving and Setting File Information
Sizing and Transforming Images
Copying and Composing Images
Color and Transparency
Annotation and Drawing
Filters and Effects

4. Charts and Graphs with GD::Graph
Let's Make Some Graphs!
A Sample GD::Graph Application
GD::Graph Methods
Attributes of GD::Graph Objects
Colors and Fonts in GD::Graph

5. Scripting the Gimp with Perl
Getting and Installing the Gimp
Writing Gimp Plug-ins in Perl
Your First Gimp Script
Object-Oriented Versus Procedural Scripting
Adding New Features to the Gimp
Standalone Scripts

Part II. Vector Images and Animations
6. SVG: The Scalable Vector Graphics Format
SVG Document Structure
The Basic SVG Tags

7. Creating SVG with Perl
A Slide-Show Presentation
SVG Animation
Creating a Bouncing Ball
SVG Scripting with JavaScript
Using Unicode Text in SVG Images
Transformation with XSLT and Perl

8. SWF: The Flash File Format
The History of Flash and SWF
The Format and Function of SWF Files
Anatomy of a Tag
Parsing an SWF File with Perl

9. Using Ming
Installation
Overview of the Perl Interface
The Astral Trespassers Game
The SWF Module
The SWF::Movie Module
The SWF::Sprite (or SWF::MovieClip) Module
The SWF::DisplayItem Module
The SWF::Shape Module
The SWF::Button Module
The SWF::Bitmap Module
The SWF::Text Module
The SWF::TextField Module
The SWF::Font Module
The SWF::Fill Module
The SWF::Gradient Module
The SWF::Morph Module
The SWF::Sound Module
The SWF::Action Module
SWF Recipes

Part III. Documents and Printing
10. Printing with Postscript and PDF
PostScript in a Nutshell
Portable Document Format (PDF)
References

11. Using the PostScript Modules
Creating PostScript from a Web Interface
The PostScript::TextBlock Module
The PostScript::Document Module
The PostScript::Elements Module
Other PostScript Modules

12. Creating PDF Documents with Perl
Introduction to PDF::API2
Creating Address Labels
Adding to Existing PDF Files
PDF::API2 Reference
PDF::API2::Page
PDF::API2::Content
PDF::API2::Gfx
PDF::API2::Text
PDF::API2::Outline
References

Part IV. Appendixes
A. Serving Graphics on the Web
B. Gimp Reference
C. Image::Magick File Formats
D. ActionScript Reference
Index