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From Reinhard Brandst├Ądter <r.brandstaed...@gmx.at>
Subject Batik and SVG for displaying multiple graphical Objects...
Date Tue, 03 Jun 2003 21:35:50 GMT

I'm currently working on my thesis and looking for a way to render many 
different arbitrary grapical Objects to a screen.
I'm not too deep into SVG and Batik (just spent the day reading through 
documents and tutorials) but I think there are some interesting aspects 
I can't ignore.
Maybe you can help me with my decision. Here the facts what I want to do 
and what I need:

1.) easy to read but powerful description of graphical objects
   that's why I thought of SVG, my framework also uses XML for 
configuration (quite a lot to be honest) and the graphical objects are 
part of this configuration. This is a main point: easy but yet powerful 
specification of graphical objects.

2.) ability to modify these graphical objects during runtime.
   What I'm especially interested in is adding text information when 
reading the SVG definition from a file and then change (maybe 
predefined) or add text.

3.) the ability to display many different graphical objects on one 
display (Canvas, Window,..)
   Imagine a sequential stream of such graphical objects and a process 
just decided where to place and "draw" this object, how long it should 
be shown, etc.

4.) since I'll generate lot's of (small) objects to display, this should 
be reasonably fast...

As for Point 3.) rendering SVGs to a display I read about SVGCanvas but 
as far as I understood this Canvas is exactly for one Object. I would 
need much more than one. Some objects might "appear", be displayed for 
some time and dissapear again. I thought of combining/merging and 
tearing SVGs apart again but this seems to be the most ugly and slowest way.
The easiest way to describe what I want might be:
read SVGs from file, modify them during runtime (add/cahnge text), 
decide where on the screen and for how long to display them, and then 
delete them again. (basically generate a animation with interacting 
graphical objects on one display)

What do you think? Is this a possible way to go? Is this concept too 
slow or too complicated?

Just for interest: is there a way to convert a SVG DOM structure into a 
Java Swing Component?

Thanks for your opinions and hints!


Reinhard Brandstaedter   r.brandstaedter@gmx.at  GPG: 0x033B81DB
-    Student of Computer Science - J.K. University of Linz     -
-        <ICQ: 73059068>    <Mobile: +43 699 12419541>         -
-                  http://adelaide.dnsalias.net                -

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