Knot-9crossings-symmetrical.svg
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Summary
Description Knot-9crossings-symmetrical.svg |
Decorative knot with nine crossings, depicted with three-fold symmetry. The central portion has a shape like a triquetra . Topologically equivalent to File:9crossings-knot-symmetric-triangles-pseudo-valknut.svg and File:9crossings-knot-symmetric-triangles-quasi-valknut.svg . For a 12-crossing symmetrical knot which visually extends this, see Image:12crossings-rose-rhodonea-limacon-symmetrical-knot.svg . For another (topologically distinct) 9-crossing knot with three-fold symmetry, see File:9crossings-decorative-knot-threefold-incircle.svg . |
Date | |
Source |
Self-made graphic, converted from a version of the following vector PostScript source code: %! 306 396 translate .4 dup scale/x 240 3 sqrt div neg def 24 setlinewidth 1 setgray/A{-120 x 360 210 360 arc 0 x 240 0 180 arc 120 x 360 180 330 arc 60 10800 sqrt rlineto gsave 60 setlinewidth 0 setgray stroke grestore stroke}def A gsave 2{120 rotate A}repeat grestore 60 setlinewidth 0 setgray 3{-120 x 360 277 302 arc stroke 0 x 240 47 71 arc stroke 120 rotate}repeat 0 x 240 170 180 arc 120 x 360 180 187 arc stroke 1 setgray 24 setlinewidth 3{-120 x 360 276 303 arc stroke 0 x 240 46 72 arc stroke 120 rotate} repeat 0 x 240 160 180 arc 120 x 360 180 188 arc stroke showpage %EOF |
Author | AnonMoos |
Licensing
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