Preface
Inkscape is frequently mentioned, and lauded, as one of the best examples of open-source software available today. It is a mature, feature-full and flexible product, thanks to a very dedicated developer community. The latest version, 0.48, adds new tools, such as the Airbrush (which many have longed for), and advanced path editing, among many other additions and improvements.
Vector graphics are becoming increasingly important at the turn of this decade, now that the World Wide Web has begun its transition towards HTML5 technologies. All the major Web browsers are striving to conform to the SVG specification, as the attractiveness of scalable, high definition, three-dimensional, and Flash-free Web sites and games is irresistible. The future is bright, but the true outcome will ultimately depend on one decisive factor: user and developer adoption.
This is why a non-proprietary authoring tool such as Inkscape is important: it is a professional package for creating quality vector graphics which is freely available for everybody to use. Whether you wish to create Web site mockups, wallpapers to share with an Internet community, high-quality advertisements for the newspaper industry, digital art for a gallery exposition, or simply a Happy Birthday for your grandmother, Inkscape is available now and without limitations, to help you achieve your goal.
What this book covers
Chapter 1, Creating and Editing Objects - Familiarize yourself with the user-interface and start drawing simple vector shapes.
Chapter 2, Editing Colors - Learn the basics of coloring and use gradients to their full effect, by replicating an iconic image of a famous movie.
Chapter 3, Speeding Up Your Workflow - Streamline and accelerate development with a set of commonly used techniques, tips and tricks.
Chapter 4, Creating and Editing Clones - Use shape cloning to rapidly create interesting complexity in your drawing.
Chapter 5, Live Path Effects - Create, assemble, and replicate objects programmatically in a variety of scenarios.
Chapter 6, Extensions - Take full advantage of the many extensions available in Inkscape, to inspire and enhance your work.
Chapter 7, SVG Filters - Experiment with SVG filter effects, taking vector graphics to a new level of sophistication, and create your own!
Chapter 8, Putting it All Together - Use your knowledge, skills, and intuition to solve graphical problems in a variety of scenarios.
Chapter 9, Raster and Almost Raster - Befriend bitmaps and use them in your vector drawings, by importing, converting (tracing), and exporting.
Chapter 10, Web Graphics Preparation - Learn to design and prepare graphics for the modern web, from small but detailed widgets to the complete layout of webpage mockup.
Chapter 11, SVG in Websites - Use vector graphics in your websites, games, and presentations, with the help of new extensions available in version 0.48.
Chapter 12, Draw Freely - Complete your knowledge on SVG and Inkscape, by learning about document metadata, compiling the software from source, and programming your own extensions using Python!
What you need for this book
You will, of course, need a working installation of Inkscape 0.48, or a more recent version if available. You can download an installer for your operating system from the official website:
You will also need a programmers text-editor, perhaps a little more advanced than a vanilla notepad. Consider using TextEdit (Mac), GEdit (GNOME), KWrite (KDE), or Notepad++ (Windows). This last editor can be downloaded for free at:
Finally, if you are interested in developing extensions for Inkscape, you will need to install the Python programming library and tools in order to complete the relative recipes in this book. You can download the necessary software from the official Python web portal:
Who this book is for
The first chapters of this book are aimed at the beginner with no previous experience of vector graphics design software packages. We will provide the fundamental concepts, an overview of the user interface, and start drawing straight away. No artistic talent is needed, just a bit of curiosity. The intermediate user will find these initial recipes useful in improving his or her competence in the use of the basic tools and workflows. The goal is to bring the reader to a level of expertise adequate for tackling the rest of the material in the book.
The more expert users will appreciate the later chapters, where we will illustrate advanced topics and demonstrate techniques for producing professional quality art, for use in web design, game development, and many other realms.
Whether you are a beginner or a battle-hardened veteran, a casual doodler or an academic artist, we hope you will enjoy the recipes in this book and find inspiration for your future works of art.
Conventions
In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.
Code words in text are shown as follows: " License information is also inserted under svg:metadata element."
A block of code is set as follows:
r=int(round(max(r*FACTOR,0))) g=int(round(max(g*FACTOR,0))) b=int(round(max(b*FACTOR,0))) return '%02x%02x%02x' % (r,g,b)
When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:
r=int(round(max(r*FACTOR,0)))
g=int(round(max(g*FACTOR,0)))
b=int(round(max(b*FACTOR,0)))
return '%02x%02x%02x' % (r,g,b)
Any command-line input or output is written as follows:
$ inkscape --usage
Usage: inkscape [-VzgDCjtTXYWHSx?] [-V|--version] [-z|--without-gui]
[-g|--with-gui] [-f|--file=FILENAME] [-p|--print=FILENAME]
[-e|--export-png=FILENAME] [-d|--export-dpi=DPI]
New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: " The information we entered into the Document Metadata dialog is inserted into SVG code."
Note
Warnings or important notes appear in a box like this.
Note
Tips and tricks appear like this.
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