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treebas3.txt
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1993-06-12
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Scanning RayTrace (6) Conference Date: 06-07-93 (02:47) Number: 2546 of 2601 (Refer# 2538)
To: TONY AUDAS
From: ED SMITH
Subj: L-SYSTEMS
Read: 06-12-93 (11:30) Status: PUBLIC MESSAGE (Echo)
Conf: RayTrace (6) Read Type: GENERAL
-> ed, i tried treebas.zip, it seems to be missing the file named 'test'
-> that contains the Axioms for the Lsystem. it would be great if you
-> could mail to me at taudas@ais.org ( i read every day) or i will be
The file 'test' is a text file, all you need to do is create it with
the text editor of your choice. The only thing you need to generate
several trees is the statement A(1,4) on the first line and it should
-> the internet pov site (ftp.informatik.uni-oldenberg.de) and to
-> the pov mailing list. 3d lsystems are great! keep up the good work!
I am currently working on a new version that will be much more
flexible and alot faster, since I switched to Turbo Pascal. I would
like it to be able to read in user created text files that would
contain the axiom and production rules that the user wants generated.
If you or someone you know can direct me to some source code for
something along those lines or even just some ideas on how to implement
something like that please let me know.
btw: I dont know if I included this in the treebas.zip file or not
but the production rules for the program in treebas.zip are the
following:
r1 = 0.9
r2 = 0.6
a0 = 45
a2 = 45
d = 137.5
wr = .707
Axiom : A(1,4)
p1: A(l,w) : * ---> !(w)F(l)[&(a0)B(l*r2,w*wr)]/(d)A(l*r1,w*wr)
p2: B(l,w) : * ---> !(w)F(l)[+(-a2)$C(l*r2,w*wr)]C(l*r1,w*wr)
p3: C(l,w) : * ---> !(w)F(l)[+(a2)$B(l*r2,w*wr)]B(l*r1,w*wr)
Just in case you were interested. Thanks for the note, I didn't think
anyone was actually interested in the program after seeing it.
Ed