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| Keywords: mathematica 3d cg parametricplot3d texture torus 輪環 りんかん ドーナツ どーなつ 六芒星 ろくぼうせい 六光星 ろくこうせい 六稜星 ろくりょうせい code program algorithm コード プログラム アルゴリズム hexagram geometric sculpture geometricsculpture shape geometry sculpture mapping テクスチャ マッピング 模様 もよう abstract 抽象 ちゅうしょう アブストラクト design pattern デザイン パターン graphic グラフィック グラフィクス structure 意匠 構造 symmetry 対称性 たいしょうせい シンメトリー 対称 たいしょう algorithm コード black background blossom plant a = 3; (* center hole size of a torus *) b = 6; (* hexa-torus *) c = 0; (* distance from the center of rotation *) d = 3; (* number of torus *) h = 1; (* height of a torus *) SetOptions[ParametricPlot3D, PlotRange -> Full, Mesh -> None, Boxed -> False, Axes -> False, PlotPoints -> 400, ImageSize -> 3000, Background -> RGBColor[{10, 40, 40}/255], PlotStyle -> Directive[Specularity[White, 30], Texture[Import["D:/tmp/86.jpg"]]], TextureCoordinateFunction -> ({#4, #5 2 Pi} &), Lighting -> "Neutral"]; f[v_] := Cos[2 Cos[Cos[Cos[v]]]]; x = (a - f[t] - Sin[b s]) Cos[s + Pi/(2 b)] + c; y = (a - f[t] - Sin[b s]) Sin[s + Pi/(2 b)] + c; z = (Sin[t/2] - h Sin[b s]) + c; rot = Table[{x, y, z}.RotationMatrix[2 i Pi/d, {0, 1, 1}], {i, d}]; ParametricPlot3D[rot, {t, 0, 2 Pi}, {s, 0, 2 Pi}] (*--- The Texture *) a = 3; (* center hole size of a torus *) b = 6; (* hexa-torus *) c = 0; (* distance from the center of rotation *) d = 3; (* number of torus *) h = 1; (* height of a torus *) SetOptions[ParametricPlot3D, PlotRange -> Full, Mesh -> None, Boxed -> False, Axes -> False, PlotPoints -> 400, ImageSize -> 3000, Background -> RGBColor[{10, 40, 40}/255], PlotStyle -> Directive[Specularity[White, 30], Texture[Import["D:/tmp/86.jpg"]]], TextureCoordinateFunction -> ({#4, #5 2 Pi} &), Lighting -> "Neutral"]; f[v_] := Cos[2 Cos[Cos[Cos[v]]]]; x = (a - f[t] - Sin[b s]) Cos[s + Pi/(2 b)] + c; y = (a - f[t] - Sin[b s]) Sin[s + Pi/(2 b)] + c; z = (Sin[t/2] - h Sin[b s]) + c; rot = Table[{x, y, z}.RotationMatrix[2 i Pi/d, {0, 1, 1}], {i, d}]; ParametricPlot3D[rot, {t, 0, 2 Pi}, {s, 0, 2 Pi}] (*--- The Texture *) | ||||
