Keywords: Trefoil-Triquetra.svg An architectural trefoil i e symmetrical pattern of three partially-overlapping circles which is also a triquetra i e simple threefold closed knot Consists of three 300° circular arcs For non-interlaced architectural trefoil see File Trefoil-Architectural png etc Self-made graphic converted from the following PostScript source code <pre> 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 </pre> 2010 AnonMoos thumb center Artistic example Trefoils in architecture Interlaced triquetra Trefoil knot diagrams with 3-fold rotational symmetry Decorative knots Images with PostScript source code Knots and links on transparent background Outline knots and links |