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Original file (681 × 681 pixels, file size: 11 KB, MIME type: image/png)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
Spacefilling combination of four dragon curves Created with Python and xturtle graphics module |
| Date | 5. 11. 2006 |
| Source | Own work |
| Author | Stefan Lew |
| Permission (Reusing this file) |
This image is public domain. You may use this image for any purpose, including commercial. |
Source code
#
# Dragon curve
#
from xturtle import *
def fold(direction):
if direction == 0:
p.right(90)
else:
p.left(90)
def next(kette):
kette.append(1)
laenge = len(kette)
for i in range(0, laenge-1):
kette.append(kette[i])
if kette[laenge-1+laenge/2] == 0:
kette[laenge-1+laenge/2] = 1;
else:
kette[laenge-1+laenge/2] = 0;
return kette
def zeichne(kette):
p.tracer(100)
p.hideturtle()
for i in kette:
p.forward(2)
fold(i)
p.forward(2)
p.update()
def find_iteration(n):
kette = [1]
for i in range(1, n):
kette = next(kette)
return kette
def set_back():
p.penup()
p.goto(0,0)
p.pendown()
it = 15
p = Pen()
zeichne(find_iteration(it))
set_back()
p.color('red')
zeichne(find_iteration(it))
set_back()
p.color('blue')
zeichne(find_iteration(it))
set_back()
p.color('green')
zeichne(find_iteration(it))
raw_input()
Licensing
|
I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:49, 4 November 2006 | | 681 × 681 (11 KB) | Lew~commonswiki | {{Information |Description=Spacefilling combination of four dragon curves Created with Python and [http://www.rg16.asn-wien.ac.at/~python/xturtle/ xturtle] graphics module |Source=own work |Date=5. 11. 2006 |Author=Stefan Lew |Permission=This image is pu |
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