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Archive-name: auto/comp.graphics.animation/graphtal-1-0-First-public-release-available

The first public release of graphtal is now available via anonymous 
ftp at iamsun.unibe.ch (130.92.64.10) and is found as 
/Graphics/graphtal-1.0.tar.Z or 
/Graphics/graphtal_no_bison_no_flex-1.0.tar.Z.

graphtal is an L-system interpreter.
The following features are included:

o  D0L-systems,
o  tables of productions,
o  productions with parameters,
o  stochastically applied productions,
o  global and local constants,
o  hull definitions (turtle interpretation with regard to
   these hulls),
o  production parameters may be strings or real values,
o  animations support,
o  turtle interpreter with macros,
o  preview for X11,
o  zBuffer preview and output for rayshade.

What you will need:

- C++ compiler (g++ doesn't work)
- bison and flex (if not available, get graphtal_no_bison_no_flex.tar.Z)
- rayshade 4.0.6 and the URT toolkit (not necessary)

How do you compile graphtal:

- Get the source.
- zcat graphtal.tar.Z | tar xvf -
- cd graphtal
- Edit the Makefile to set the compiler you have.
- make depend
- make
- execute an example:
    graphtal -d x11wire Examples/birchtree.lsys

Supported platforms:

- Sun SparcStations with Sun C++ 2.1, Sun C++ 3.0, AT&T 2.0 and AT&T 3.0
- IBM RS/6000 with AT&T C++ 2.0
- DEC Station with DEC C++ 1.0

Examples:

In the directory graphtal/Examples some interesting L-systems are 
included. The animation scripts will need nawk or gawk in order
to work.


Please send bugs (accompanied by L-systems causing them),
interesting L-systems for inclusion in the release, enhancements,
and suggestions to the author via email.

Christoph Streit (streit@iam.unibe.ch)