home *** CD-ROM | disk | FTP | other *** search
- Xref: sparky comp.graphics:11526 comp.graphics.animation:922
- Newsgroups: comp.graphics,comp.graphics.animation
- Path: sparky!uunet!news.univie.ac.at!chx400!aragorn.unibe.ch!tintin!streit
- From: streit@iam.unibe.ch (Christoph Streit)
- Subject: graphtal 1.0 : First public release available
- Message-ID: <1992Nov5.155840.11677@aragorn.unibe.ch>
- Sender: news@aragorn.unibe.ch
- Reply-To: streit@iam.unibe.ch
- Organization: Dept. of Computer Science, University of Berne, Switzerland
- References: <1992Nov4.194529.13868@cc.tut.fi>
- Date: Thu, 5 Nov 1992 15:58:40 GMT
- Lines: 49
-
- In article 13868@cc.tut.fi, jk87377@cc.tut.fi (Juhana Kouhia) writes:
-
- > Hi,
- >
- > Please take this note seriously; other readers may learn something too.
- >
- > When you announce a program or anything, try write *first*
- > a descibtion of the program, that is, what is it?
- > (You tried but failed badly.)
- >
- > In this case, the name doesn't say anything.
- > Also "L-system" does not mean anything to people who
- > have not read about L-system, so your description
- > implies a question on what is the L-system.
-
- Sorry, you are perfectly right! Here's a (hopefully) useful description of
- my program:
-
- o What can you do with graphtal:
-
- - generate geometric objects like trees, plants, skyscrapers, ...
- - you can produce different kinds of output, which include
- output for rayshade, X11 or ppm (portable pixmap).
- - you can use the models produced by graphtal into your own images.
- - you may produce animations with graphtal (see the examples).
- - some example L-system descriptions are included
- (birchtree, firtree, a plant, ...), you can use to start with.
- - ...
-
-
- o How does an L-system work:
-
- I don't want to explain what L-systems are all about. Here's just
- the principle:
-
- An L-system description is a collection of rules. graphtal takes
- these rules and applies them to a string of commands. This string
- is transformed into another string due to these rules.
- The commands in the string control a 3D turtle and you get the path
- of the turtle as output.
-
-
- Christoph Streit
-
- PS: I hope these explanations are useful for you.
-
- PS2: Juhana, for the next time, could you please write down just
- one nice word in your message?
-
-