File:Interlinked-trefoil-knots background-tile.svg

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Original file(SVG file, nominally 1,086 × 627 pixels, file size: 4 KB)

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Description A pattern of interlinked trefoil knots which extends indefinitely as "wallpaper" when repeats of this graphic are tiled side-by-side and top-to-bottom.
Date
Source

A version of this was previously uploaded as http://katlas.math.toronto.edu/wiki/Image:Trefoils-interlinked-ornamental.png

Converted from the following vector PostScript source code:

%!
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def/radius 100 5000 sqrt add 1.456696 mul def/z{factor dup
mul 2 div sqrt}def/Q{factor dup mul 6 div sqrt neg}def/W{
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setrgbcolor}def/A{gsave 36 setlinewidth C
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z Q radius 90 210 arcn
0 W radius 210 330 arcn closepath
gsave 72 setlinewidth 0 setgray stroke grestore stroke
72 setlinewidth 0 setgray
3{-232 100 moveto 119 0 rlineto stroke 120 rotate}repeat
36 setlinewidth C
3{-237 100 moveto 129 0 rlineto stroke 120 rotate}repeat
grestore}def A
gsave -1141.4215 0 translate A grestore
gsave 1141.4215 0 translate A grestore
gsave -570.7107 -988.5 translate A grestore
gsave 570.7107 -988.5 translate A grestore
gsave -1712.1322 -988.5 translate A grestore
gsave 1712.1322 -988.5 translate A grestore
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gsave 570.7107 988.5 translate A grestore
gsave -1712.1322 988.5 translate A grestore
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gsave -570.7107 329.5 translate -1 -1 scale A grestore
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gsave -1712.1322 -1647.55 translate -1 -1 scale A grestore
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/B{72 setlinewidth 0 setgray
z neg Q radius 183 202 arc stroke
z neg Q radius 303 322 arc stroke
0 W radius 63 82 arc stroke
0 W radius 183 202 arc stroke
z Q radius 303 322 arc stroke
z Q radius 63 82 arc stroke
36 setlinewidth .87 .97 .87 setrgbcolor
z neg Q radius 182 203 arc stroke
z neg Q radius 302 323 arc stroke
0 W radius 62 83 arc stroke
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z Q radius 302 323 arc stroke
z Q radius 62 83 arc stroke}def B
gsave -1141.4215 0 translate B grestore
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gsave -1712.1322 -988.5 translate B grestore
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closepath stroke showpage
%EOF
Author AnonMoos
Permission
(Reusing this file)
Public domain 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.
Other versions File:Triquetra-circle-interlaced-wallpaper-tile.png

File history

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Date/TimeThumbnailDimensionsUserComment
current00:20, 16 May 2013Thumbnail for version as of 00:20, 16 May 20131,086 × 627 (4 KB)AnonMoos (talk | contribs)fixes to avoid flaws in rendered PNG
17:37, 15 May 2013Thumbnail for version as of 17:37, 15 May 20131,086 × 627 (4 KB)AnonMoos (talk | contribs)A pattern of interlinked trefoil knots which extends indefinitely as "wallpaper" when repeats of this graphic are tiled side-by-side and top-to-bottom. A version of this was previously uploaded as http://katlas.math.toronto.edu/wiki/Image:Trefoils-int...

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