平铺与体积

平铺与体积
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2014-01-15 04:41
所属专题 Volume of Solids
①本范例演示了如何通过变换多边形来构建体积模型,并可视化其变化过程;②涉及的核心数学概念包括体积计算、矩阵变换、三角函数、平行四边形、相似变换等;③作图要点使用了GeoGebra命令Sequence(序列)、Element(元素)、Polygon(多边形)、Segment(线段)、Translate(平移);④适合高中及以上学生学习立体几何、线性代数及变换几何。

GeoGebra 命令及参数

  1. Sequence(Mat * Element[cube, k], k, 1, 8) → cube'
  2. Sequence(I + (Element[cube', k, 1, 1], Element[cube', k, 2, 1]), k, 1, 8) → listepoints
  3. Element(listepoints, 7) → F
  4. Element(listepoints, 6) → B_3
  5. Element(listepoints, 1) → E
  6. Element(listepoints, 2) → A
  7. Element(Element[AE, 3], 1) → droite
  8. Element(listepoints, 4) → C_1
  9. Element(listepoints, 3) → D
  10. Polygon(A, E, C_1, D) → poly1, a_1, b, c_1, d
  11. Element(listepoints, 8) → G
  12. Element(listepoints, 5) → H
  13. Polygon(B_3, F, G, H) → poly2, e, f, g, h
  14. Element(listepoints, 3) → C
  15. Polygon(F, C, A, B_3) → poly3, f_1, i, a_2, b_1
  16. Element(AB, 3, 1) → avant
  17. Polygon(C_1, G, H, E) → poly4, c_2, g_1, h_1, e_1
  18. Element(AC, 3, 1) → dessus
  19. Polygon(F, C, C_1, G) → poly5, f_2, c_3, c_4, g_2
  20. Polygon(A, B_3, H, E) → poly6, a_3, b_2, h_2, e_2
  21. Segment(E, A) → c
  22. Segment(A, C) → j
  23. Segment(A, B_3) → k
  24. Segment(C, C_1) → l
  25. Segment(C_1, E) → m
  26. Segment(A, B_3) → p
  27. Segment(B_3, H) → q
  28. Segment(H, E) → r
  29. Segment(H, G) → s
  30. Segment(B_3, F) → t
  31. Segment(G, C_1) → d_1
  32. Segment(F, G) → i_1
  33. Segment(F, C) → j_1
  34. Polygon(A, B_3, F', D') → poly7, a_4, b_3, f', d'
  35. Polygon(E, A, D'', C') → poly8, e_3, a_5, d'', c'
  36. Polygon(B_3, F'', G', H) → poly9, b_4, f'', g', h_3
  37. Polygon(H, G'', C''', E) → poly10, h_4, g'', c''', e_4
  38. Polygon(A_2, B_2, G'', C''') → poly11, a_6, b_5, g''_1, c'''_1
  39. Sequence(E + (A - E) * k / m_1, k, 0, m_1) → l_2
  40. Sequence(A + (B_3 - A) * k / k_1, k, 0, k_1) → l_1
  41. Sequence(H + (E - H) * k / k_1, k, 0, k_1) → l_4
  42. Sequence(B_3 + (H - B_3) * k / m_1, k, 0, m_1) → l_5
  43. Sequence(Segment[Element[l_1, k], Element[l_4, k_1 - k + 2]], k, 0, k_1) → s_1
  44. Sequence(G + (C_1 - G) * k / k_1, k, 0, k_1) → l_6
  45. Sequence(H + (G - H) * k / n_1, k, 0, n_1) → l_7
  46. Sequence(E + (C_1 - E) * k / n_1, k, 0, n_1) → l_8
  47. Sequence(Segment[Element[l_4, k], Element[l_6, k]], k, 0, k_1) → s_4
  48. Sequence(D + (C_1 - D) * k / m_1, k, 0, m_1) → l_9
  49. Sequence(D + (A - D) * k / n_1, k, 0, n_1) → l_{10}
  50. Sequence(B_3 + (F - B_3) * k / n_1, k, 0, n_1) → l_{12}
  51. Sequence(D + (F - D) * k / k_1, k, 0, k_1) → l_{11}
  52. Sequence(Segment[Element[l_{11}, k], Element[l_6, k_1 - k + 2]], k, 0, k_1) → s_7
  53. Sequence(Segment[Element[l_{11}, k], Element[l_1, k]], k, 0, k_1) → s_8
  54. Sequence(G + (F - G) * k / m_1, k, 0, m_1) → l_{13}
  55. Sequence(Segment[Element[l_2, k], Element[l_5, m_1 - k + 2]], k, 0, m_1) → s_2
  56. Sequence(Segment[Element[l_9, k], Element[l_2, m_1 - k + 2]], k, 0, m_1) → s_6
  57. Sequence(Segment[Element[l_{13}, k], Element[l_9, m_1 - k + 2]], k, 0, m_1) → s_{12}
  58. Sequence(Segment[Element[l_{13}, k], Element[l_5, m_1 - k + 2]], k, 0, m_1) → s_{11}
  59. Sequence(Segment[Element[l_{12}, k], Element[l_{10}, n_1 - k + 2]], k, 0, n_1) → s_9
  60. Sequence(Segment[Element[l_{12}, k], Element[l_7, k]], k, 0, n_1) → s_{10}
  61. Sequence(Segment[Element[l_7, k], Element[l_8, k]], k, 0, n_1) → s_3
  62. Sequence(Segment[Element[l_8, k], Element[l_{10}, n_1 - k + 2]], k, 0, n_1) → s_5
  63. Translate(A, Vector[A, J]) → U_A
  64. Translate(U_A, Vector[1 / n_1 * Vector[A, C]]) → U_C
  65. Translate(U_A, Vector[1 / k_1 * Vector[A, B_3]]) → U_B
  66. Translate(U_B, Vector[1 / n_1 * Vector[A, C]]) → U_F
  67. Polygon(J, U_C, U_F, U_B) → poly12, j_2, u_c, u_f, u_b
  68. Translate(U_A, Vector[1 / m_1 * Vector[A, E]]) → U_E
  69. Translate(U_E, Vector[1 / n_1 * Vector[E, C_1]]) → U_C1
  70. Polygon(U_C, J, U_E, U_C1) → poly13, u_1, j_3, u_e, u_c1
  71. Translate(U_C1, Vector[1 / k_1 * Vector[C_1, G]]) → U_G
  72. Polygon(U_C, U_C1, U_G, U_F) → poly14, u_2, u_3, u_g, u_4
  73. Translate(U_E, Vector[1 / k_1 * Vector[E, H]]) → U_H
  74. Polygon(U_C1, U_G, U_H, U_E) → poly15, u_5, u_6, u_h, u_7
  75. Polygon(U_H, U_G, U_F, U_B) → poly16, u_8, u_9, u_{10}, u_{11}
  76. Polygon(U_H, U_B, U_A, U_E) → poly17, u_{12}, u_{13}, u_a, u_{14}

AI 绘图提示语参考

绘制一个由六个平行四边形面围成的斜六面体,其顶点由两个平行且全等的四边形通过平移得到。先构造一个基础立方体,对其施加矩阵变换得到斜置的六面体,然后依次连接各顶点形成六个侧面。接着,在六面体的棱上按比例取点,连接这些点生成内部网格线,展示体积分割效果。图形包含多个平行四边形面、棱线段以及由等分点连成的平行线族,整体呈现三维透视的几何变换关系。
以上提示语为根据原始绘图命令整理而来,仅供参考。