File:Sierpinski triangle.svg
Size of this PNG preview of this SVG file: 692 × 599 pixels. Other resolutions: 277 × 240 pixels | 554 × 480 pixels | 887 × 768 pixels | 1,182 × 1,024 pixels | 2,364 × 2,048 pixels | 1,024 × 887 pixels.
Original file (SVG file, nominally 1,024 × 887 pixels, file size: 3 KB)
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Summary
This plot was created with Matplotlib.
Source code
Python code
from __future__ import division
import matplotlib.pyplot as plt
plt.figure()
plt.subplot(1,1,1)
plt.axis('off')
def drawBlue(p1,p2,p3):
plt.fill([p1[0],p2[0],p3[0]],[p1[1],p2[1],p3[1]],facecolor='b',edgecolor='none')
def drawWhite(p1,p2,p3):
plt.fill([p1[0],p2[0],p3[0]],[p1[1],p2[1],p3[1]],facecolor='w',edgecolor='none')
def midpoint(p1,p2):
return ((p1[0]+p2[0])/2,(p1[1]+p2[1])/2)
def sierpinski(p1,p2,p3,repeat):
drawWhite(midpoint(p1,p2),midpoint(p2,p3),midpoint(p3,p1))
if (repeat <= 8):
sierpinski(p1,midpoint(p1,p2),midpoint(p1,p3),repeat+1)
sierpinski(p2,midpoint(p1,p2),midpoint(p2,p3),repeat+1)
sierpinski(p3,midpoint(p1,p3),midpoint(p2,p3),repeat+1)
drawBlue((0,0),(7,0),(3.5,6.0621778265))
sierpinski((0,0),(7,0),(3.5,6.0621778265),0)
plt.show()
Licensing
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
Transferred to Commons.
| Upload date | User | Bytes | Dimensions | Comment |
|---|---|---|---|---|
| 2007-10-21 06:40:53 | Marco Polo | 2976 | 1774×1536 | typo |
| 2007-10-21 06:39:47 | Marco Polo | 2976 | 1774×1536 | Recursive algorithm for generation |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:12, 4 March 2013 | | 1,024 × 887 (3 KB) | wikimediacommons>Perhelion | rev: unnecessary excessive code, used original code |
File usage
The following 5 pages use this file:
