3 Knot-Tori / ３個の結び目

a = 7; (* center hole size of a torus *)

b1 = 9; (* number of cross *)

b2 = 4; (* number of cross *)

c = 3; (* distance from the center of rotation *)

d = 3; (* number of torus *)

SetOptions[ParametricPlot3D, PlotRange -> Full, Mesh -> None,

Boxed -> False, Axes -> None, PlotPoints -> 300, ImageSize -> 3000,

Background -> Darker[Orange, 0.8],

PlotStyle -> Directive[Specularity[White, 90], Texture[Import["D:/tmp/71.jpg"]]],

TextureCoordinateFunction -> ({#4, #5 b1 Pi} &), Lighting -> "Neutral"];

f[v_] := Sin[2 Sin[Sin[Sin[v]]]];

x = (a - Cos[t] + f[b1 s]) Cos[b2 s] + c;

y = (a - Cos[t] + f[b1 s]) Sin[b2 s] + c;

z = Cos[b1 s] + f[t] + c;

rot = Table[{x, y, z}.RotationMatrix[2 i Pi/d, {0, 0, 1}], {i, d}];

ParametricPlot3D[rot, {t, 0, 2 Pi}, {s, 0, 2 Pi}]

(*---

The Texture is this: www.flickr.com/photos/tanaka_juuyoh/5239255695/

*)