File:Fractal fern-Barnsley animation.gif
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Size of this preview: 800 × 554 pixels. Other resolutions: 320 × 221 pixels | 640 × 443 pixels | 828 × 573 pixels.
Original file (828 × 573 pixels, file size: 84 KB, MIME type: image/gif, looped, 5 frames, 2.5 s)
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| Description |
Polski: Animacja obrazująca działanie algorytmu IFS generującego paproć Barnsleya dla różnej liczby powtórzeń |
| Date | 1 January 2008 (original upload date) |
| Source | Transferred from pl.wikipedia to Commons by Masur using CommonsHelper. |
| Author | Gknor at Polish Wikipedia |
Licensing[edit]
|
This work has been released into the public domain by its author, Gknor at Polish Wikipedia. This applies worldwide. In some countries this may not be legally possible; if so: Gknor grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
Przykładowy programy (Matlab)[edit]
Program napisany w Matlabie generujący paproć widoczną na animacji obok:
for max_step=[1000 10000 50000 100000 500000];
x=zeros(1,max_step);
y=zeros(1,max_step);
for n=1:max_step
r=rand();
if r<=0.01
x(n+1)=0;
y(n+1)=0.16*y(n);
elseif r<=0.08
x(n+1)=0.2*x(n)-0.26*y(n);
y(n+1)=0.23*x(n)+0.22*y(n)+1.6;
elseif r<=0.15
x(n+1)=-0.15*x(n)+0.28*y(n);
y(n+1)=0.26*x(n)+0.24*y(n)+0.44;
else
x(n+1)=0.85*x(n)+0.04*y(n);
y(n+1)=-0.04*x(n)+ 0.85*y(n)+1.6;
end
end
plot(x,y,'.','Color', 'g', 'MarkerSize',1)
title(['N = ' num2str(max_step)])
drawnow
pause(0.5)
end
Original upload log[edit]
The original description page was here. All following user names refer to pl.wikipedia.
- 2008-01-01 20:37 Gknor 828×573× (85768 bytes) {{Grafika | Opis = animacja obrazująca działanie algorytmu IFS generującego paproć Barnsleya dla różnej liczby powtórzeń | Źródło = praca własna | Data = 1-I-2008 | Autor = Grzegorz Knor |Warunki udostępnienia = patrz niżej }}
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 09:04, 27 December 2009 | | 828 × 573 (84 KB) | File Upload Bot (Magnus Manske) (talk | contribs) | {{BotMoveToCommons|pl.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{pl|== Licencja ==}} |Source=Transferred from [http://pl.wikipedia.org pl.wikipedia]; transferred to Common |
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