SVG Open / Carto.net
Zurich, Switzerland - July 15-17, 2002
Libauer Str. 2
Tel.: +49 172 8118774
Fax: +49 8151 89408
Tel.: +49 171 4811976
Fax: +49 8151 21146
Topic of presentation: SVG server-side
Intention: To show how to generate SVG server-side,
including configuration issues and some examples
Motivation: SVG is powerful, and using its scripting
capabilities, it is even more powerful. However the ultimate power only can
be achieved when using server-side scripting. This enables the usage of storing
information in files, retrieving (and writing) data into databases and so on.
In this talk, we will show how you can extend your server and your scripts so
that you can generate SVG code on the server side. The focus of this talk is
on the how, e.g. which steps are necessary for a script to generate code the
viewer understands. Thus, there is no focus on one special technology (PHP,
ASP, JSP, Java Servlets, Perl, ...) - the goal of this talk is that everyone
can benefit from it, no matter which technology is used.
Abstract: The talk is planned to consist out of
- Motivation: Some hints why server-side generation
offers advantages over "static" SVG document, e.g. fresh content,
easy and automatic update, and so on.
- Satisfying the browser: The browser expects
a certain MIME type in order to decide what to do with a file (if no MIME
type is provided, some browsers use the extension). We explain what exactly
a MIME type is, what the MIME type of SVG documents is and how you can set
the MIME type of a script's output in PHP, ASP, JSP, Perl and others.
- Creating SVG elements: Using a lot of "write"
functions, it is possible to create SVG to send to the client, however a little
bit of methodic is quite nice. We show some examples using PHP (we chose PHP
since it is widely spread and available for many platforms) and Perl (same
reasons as above, plus large amount of modules) and generate some SVG elements.
We also have a look at existing classes/modules that make generating SVG elements
- Examples: After the initial work is done and
the basics have been introduced, we show some examples that use server-side
techniques like database access in order to generate truly dynamic SVG effects.
The listings are short and simple (so also people who do not know a specific
language can understand what is happening), however the effects may be surprising.
Conclusion: SVG will never look the same to you
once you have seen what can be done using server-side techniques.
Presentation setup will use an Apache Web Server and Open Source scripting languages,
however we will also have a look at other products and technologies, e.g. Microsoft's
ASP. The goal is to satisfy all platforms whose supporters attend the presentation.
About the presenters:
- Christian Wenz is a well-known German book author with approximately
25 publications on various aspects of web programming, including two bestsellers
both German and international publishers. Some of his books have been translated
into other languages.
- Tobias Hauser is also a well-known book author. He specializes in
web design, both the graphical and the programming side. Among his around
two dozen publications are successful books on Photoshop, HTML and PHP, some
of them are also available in other languages.