File:Trefoil-Triquetra.png
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Trefoil-Triquetra.png (632 × 600 pixels, file size: 16 KB, MIME type: image/png)
An architectural trefoil (i.e. symmetrical pattern of three partially-overlapping circles) which is also a triquetra (i.e. simple threefold closed knot). Three 300° circular arcs.
For non-interlaced architectural trefoil, see http://commons.wikimedia.org/wiki/File:Trefoil-Architectural.png, etc.
Self-made graphic, declared to be public domain, converted from the following PostScript source code:
%!
306 396 translate .4 dup scale/x{201.9613115 -116.6025
403.9226231}def/B{1 setgray 36 setlinewidth x 180 120 arc
gsave 0 setgray 96 setlinewidth stroke grestore stroke}def
gsave B 2{-120 rotate B}repeat grestore/A{96 setlinewidth
0 setgray x 230 251 arc stroke 1 setgray 36 setlinewidth
x 229 252 arc stroke}def A 2{120 rotate A}repeat showpage
%EOF
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:05, 6 February 2010 | | 632 × 600 (16 KB) | AnonMoos (talk | contribs) | An architectural trefoil (i.e. symmetrical pattern of three partially-overlapping circles) which is also a triquetra (i.e. simple threefold closed knot). For non-interlaced architectural trefoil, see http://commons.wikimedia.org/wiki/File:Trefoil-Archite |
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