Author Topic: Draw Fractal tree and SpiroGraph flower  (Read 28811 times)

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Jeff_M

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  • C3D user & customizer
Re: use LS gramma to Draw Fractal tree
« Reply #15 on: October 22, 2006, 08:17:10 PM »
The SpiroGraph was one of my favorites when I was young! Good job, Chen, and thanks for sharing!

qjchen

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Re: use LS gramma to Draw Fractal tree
« Reply #16 on: October 22, 2006, 08:25:46 PM »
Thank you, MP and Jeff_M
I always not only treat Lisp as technology, but also a toy:)
It has only few base function, but it define so many other function, just like toy.
Every autolisper write code to realize his aim, hard or easy, just like use toy to build his palace, big or small, that is not important, get fun from the Lisp, that is enough.

 
« Last Edit: October 22, 2006, 08:30:10 PM by yuanqiu »
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ElpanovEvgeniy

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Re: Draw Fractal tree and SpiroGraph flower
« Reply #17 on: October 23, 2006, 10:15:58 AM »
Very nice Chen!  :-)

Why, you did not use a polyline?
Stay home. Stay safe. Save lives.

qjchen

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Re: Draw Fractal tree and SpiroGraph flower
« Reply #18 on: October 23, 2006, 09:17:27 PM »
Very nice Chen!  :-)

Why, you did not use a polyline?

:) just for fun and didnt consider too much.
polyline will be good I think, but I am not sure whether I can see the rolling progress, just like entmake is quick than command, but it is too fast and couldnt view the progress.

now I am thinking about the arbitory outside closed curve, maybe the vlax-curve function should be used:)
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HasanCAD

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Re: Draw Fractal tree and SpiroGraph flower
« Reply #19 on: February 22, 2010, 09:45:26 AM »
nice one
thanks

peterba

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Re: Draw Fractal tree and SpiroGraph flower
« Reply #20 on: February 01, 2012, 06:40:06 AM »
Yes I know this is an old thread - but I've just found it here.
I am so fascinated by the automatically generated trees and other patterns.
Thank you qjchen, for sharing it here.

I've been experimenting a bit with the first tree.lsp program to achieve a random output.
I've marked my supplements with "2012 bp".
Now with each program start, a unique tree grows. :-)

The picture shows three sequentially generated number 1 trees.

Not much useful, but perhaps usable for decoration.
« Last Edit: February 01, 2012, 06:43:35 AM by peterba »

d2010

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Re: Draw Fractal tree and SpiroGraph flower
« Reply #21 on: February 04, 2012, 07:59:34 AM »
A funny draw fractal tree code, there are 6 pattern already defined inside, you
can change as you like:)

*******************************
HI, see, my Fractals in the LISP R14 language 
Im make VLX programs with the VlaxCompiler and VirtualC+Lisp language
Other details
Downloading from  ..
http://www.puiubrat.3x.ro/adve2011/netilisq.html
Regards..
« Last Edit: February 04, 2012, 08:49:18 AM by d2010 »

qjchen

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Re: Draw Fractal tree and SpiroGraph flower
« Reply #22 on: February 04, 2012, 09:46:08 PM »
Thank you, peterba
For adding this useful random growth rule function. It now can generate various type of trees, much funny~.
Thanks ~~

and d2010, thank you for sharing your beautiful Manderbrot fractal Lisp function. and in your attachment there are some articles about Mixing program about Lisp and C++ => C++LISP. Although I am not familiar with it, but I think it should be very useful.

BTW
In this topic, Lee Mac give us another beautiful fractal code
http://www.theswamp.org/index.php?topic=32240.msg377585#msg377585

and In
http://www.theswamp.org/index.php?topic=17746.msg214644#msg214644
http://bbs.mjtd.com/forum.php?mod=viewthread&tid=58371
http://bbs.mjtd.com/forum.php?mod=viewthread&tid=59385
http://bbs.mjtd.com/forum.php?mod=viewthread&tid=86891
http://bbs.mjtd.com/thread-86643-1-1.html

Highflybird give us  amazing truecolor fractal works

And recently inspired by Kean's work, I am also doing some preliminary works on the hyperbolic tiling, another fractal codes, the topic is about {p,q} pattern,
http://www.theswamp.org/index.php?topic=40644.msg460318#msg460318
and now some other quasi-{p,q} or dual {p,q} pattern is on the way.

Fractal is really very cool stuff
http://projekte.sinnpirat.de/fraktal/
here is a online 3d fractal generation website.
« Last Edit: February 04, 2012, 09:52:48 PM by qjchen »
http://qjchen.mjtd.com
My blog http://chenqj.blogspot.com (Chinese, can be translate into English)

Faster

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Re: Draw Fractal tree and SpiroGraph flower
« Reply #23 on: February 05, 2012, 07:20:47 AM »
Nicecode!Thanks!