December 2002
Beginner
478 pages
17h 55m
English
Content preview from Perl Graphics ProgrammingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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A Slide-Show Presentation
Many programs let you build presentations, the biggest and best-known of which is Microsoft’s Powerpoint. In this section we develop a program that transforms an XML file describing a slide-show presentation (slides, bullet items, etc.) into an SVG file that is the presentation.
The input file consists of a collection of any of the following six tags:
<slideshow>The top-level tag
<slide>A new slide in the sequence
<block>A block can be either a line of text or a bullet list
<bulletlist>A group of
<bullet>elements<bullet>An indented line of text with a bullet prepended
<image>An image to place in the upper left corner of the slide
A complete slide show file written in this format looks like Example 6-1.
Example 7-1. Sample slideshow file
<slideshow subdir="./slideshow1/"> <slide title="Perl for Graphics"> <image>http://shawn.apocabilly.org/PFG/examples/shawn.png </image> <block type="textline">Section I: File Formats</block> <block type="bulletlist"> <bullet>1. Raster Graphics Formats</bullet> <bullet>2. Efficient Multimedia with SWF</bullet> <bullet>3. The SVG format</bullet> <bullet>4. Printing with PostScript and PDF</bullet> </block> <block type="textline">Section II: Tools</block> ... </slide> <slide title="Chapter 1"> <image>http://shawn.apocabilly.org/PFG/examples/shawn.png </image> <block type="textline">Web Graphics Basics</block> <block type="bulletlist"> <bullet>Fields and Streams</bullet> <bullet>Color tables</bullet> <bullet>Transparency and alpha</bullet> ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.