图片素材 : 结构体, 轮, 质地, 模式, 绿色, 生产, 圈, 数字, 设计, 对称, 3d, 图形, 环形, 数学, cg, 参数曲线3d, 码, 程序, 算法, abstruct, 映射, 充气 3080x2714

(* === Following code of Mathematica 8 generates this image. === *) a1 = 12; (* center hole size *) a2 = 1; (* thickness of a torus *) a3 = 3; (* wave height of a torus *) b = 5; (* *) c = 0; (* distance from the center of rotation *) d = 6; (* number of torus *) h = 2; (* height of a torus *) SetOptions[ParametricPlot3D, PlotRange -> Full, Mesh -> None, Boxed -> False, Axes -> None, PlotPoints -> 600, ImageSize -> 3000, Background -> RGBColor[{250, 250, 200}/255], PlotStyle -> Directive[Specularity[White, 30], Texture[Import["D:/tmp/71.jpg"]]], TextureCoordinateFunction -> ({#4 + #5, #5/Pi} &), Lighting -> "Neutral"]; f[v_] := Sin[2 Sin[Sin[Sin[v]]]]; x = y = z = {0, 0}; x[[1]] = (a1 - a2 Cos[t] + a3 f[b s]) Cos[s]; y[[1]] = (a1 - a2 Cos[t] + a3 f[b s]) Sin[s] + c; z[[1]] = h f[t]; x[[2]] = (a1 - a2 Cos[t] + a3 Sin[b s]) Cos[s]; y[[2]] = (a1 - a2 Cos[t] + a3 Sin[b s]) Sin[s] + c; z[[2]] = h Sin[t]; rm = Table[{x[[Mod[i, 2, 1]]], y[[Mod[i, 2, 1]]], z[[Mod[i, 2, 1]]]}.RotationMatrix[2 i Pi/d, {0, 0, 1}], {i, d}]; ParametricPlot3D[rm, {t, 0, 2 Pi}, {s, 0, 2 Pi}] (*--- The Texture Another shapes and colors, and the meaning of this code in the set description *)

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