Free Images : structure, fruit, texture, leaf, flower, pattern, food, green, produce, vegetable, geometry, gourd, sculpture, design, symmetry, 3d, graphic, shape, torus, mathematica, cg, parametricplot3d, code, program, algorithm, mapping, geometricsculpture, arum, flowering plant, land plant 3080x2042

a = 4; (* center hole size of torus *) b = 8; (* octa-torus *) d = 3; (* number of torus *) SetOptions[ParametricPlot3D, PlotRange -> Full, Mesh -> None, Boxed -> False, Axes -> None, PlotPoints -> 400, ImageSize -> 3000, PlotStyle -> Directive[Specularity[White, 30], Texture[Import["D:/tmp/71.jpg"]]], TextureCoordinateFunction -> ({#4, #5 b Pi} &), Lighting -> "Neutral"]; g[v_] := Sum[Cos[(2 k - 1) v]/(2 k - 1), {k, 4}]; x = (a - Cos[t] - Sin[b s]) g[s + Pi/(2 b)]; y = Sin[t]; z = (a - Cos[t] - Sin[b s]) Sin[s + Pi/(2 b)]; rot = Table[{x, y, z}.RotationMatrix[2 i Pi/d, {1, 0, 0}], {i, d}]; ParametricPlot3D[rot, {t, 0, 2 Pi}, {s, 0, 2 Pi}] (*--- The Texture The g[] is a 4-partial sum of the Fourier series for Square wave. g[]は矩形波のフーリエ展開の最初の4項 *)

The free high-resolution photo of structure, plant, fruit, texture, leaf, flower, pattern, food, green, produce, vegetable, geometry, gourd, sculpture, design, symmetry, 3d, graphic, shape, torus, mathematica, cg, parametricplot3d, code, program, algorithm, mapping, geometricsculpture, arum, flowering plant, land plant

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