Cube Pattern on Sphere Construction

Cube Pattern on Sphere Construction
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2020-10-08 13:31
This example demonstrates how to construct and display a cube pattern on a sphere. Using Point, Polygon, and Cube commands to create cube grids, Rotate and Mirror commands for spatial transformations, and Sphere command to generate the spherical surface. Key mathematical concepts include solid geometry, spatial coordinate systems, spherical projection, cube unfolding patterns, and spatial rotation/symmetry transformations. Suitable for high school and university students studying solid geometry, spatial visualization, and GeoGebra software operations.

GeoGebra Commands & Parameters

  1. Point(yAxis) → E
  2. Polygon(B, C, D, A) → q1, b, c, d, a
  3. Cube(q1, true) → e, F, edgeBF, edgeAI, edgeFI, edgeFG, edgeCG, edgeGH, edgeDH, edgeHI, G, H, I, faceABFI, faceBCGF, faceCDHG, faceADHI, faceFGHI
  4. Centroid(faceCDHG) → J
  5. Segment(C, H) → f
  6. Segment(D, G) → g
  7. Midpoint(C, D) → K
  8. Midpoint(C, G) → L
  9. Midpoint(G, H) → M
  10. Midpoint(H, D) → N
  11. Segment(K, M) → h
  12. Segment(L, N) → i
  13. Line(E, J) → j
  14. Rotate(C, 22.5°, j) → C'
  15. Rotate(H, 22.5°, j) → H'
  16. Segment(C', H') → f'
  17. Segment(C, D) → k
  18. Segment(G, H) → l
  19. Segment(K, L) → m
  20. Intersect(m, f') → O
  21. Segment(C, O) → n
  22. Segment(O, J) → p
  23. Mirror(O, f) → O'
  24. Segment(C, O') → q
  25. Segment(O', J) → r
  26. Segment(O, K) → s
  27. Segment(L, O') → t
  28. Rotate(O', 90°, j) → O''
  29. Rotate(J, 90°, j) → J'
  30. Segment(O'', J') → r'
  31. Rotate(O, 90°, j) → O'_{1}
  32. Rotate(J, 90°, j) → J'_{1}
  33. Segment(O'_{1}, J'_{1}) → p'
  34. Rotate(C, 90°, j) → C'_{1}
  35. Rotate(O', 90°, j) → O''_{1}
  36. Segment(C'_{1}, O''_{1}) → q'
  37. Rotate(C, 90°, j) → C'_{2}
  38. Rotate(O, 90°, j) → O'_{2}
  39. Segment(C'_{2}, O'_{2}) → n'
  40. Rotate(L, 90°, j) → L'
  41. Rotate(O', 90°, j) → O''_{2}
  42. Segment(L', O''_{2}) → t'
  43. Rotate(O, 90°, j) → O'_{3}
  44. Rotate(K, 90°, j) → K'
  45. Segment(O'_{3}, K') → s'
  46. Mirror(O, J'_{1}) → O'_{4}
  47. Mirror(O', J'_{1}) → O''_{3}
  48. Mirror(O, J'_{1}) → O'_{5}
  49. Mirror(J, J'_{1}) → J'_{2}
  50. Segment(O'_{5}, J'_{2}) → p'_{1}
  51. Mirror(O', J'_{2}) → O''_{4}
  52. Mirror(J, J'_{2}) → J'_{3}
  53. Segment(O''_{4}, J'_{3}) → r'_{1}
  54. Mirror(C, J'_{3}) → C'_{3}
  55. Mirror(O', J'_{3}) → O''_{5}
  56. Segment(C'_{3}, O''_{5}) → q'_{1}
  57. Mirror(C, J'_{3}) → C'_{4}
  58. Mirror(O, J'_{3}) → O'_{6}
  59. Segment(C'_{4}, O'_{6}) → n'_{1}
  60. Mirror(L, J'_{3}) → L'_{1}
  61. Mirror(O', J'_{3}) → O''_{6}
  62. Segment(L'_{1}, O''_{6}) → t'_{1}
  63. Mirror(O, J'_{3}) → O'_{7}
  64. Mirror(K, J'_{3}) → K'_{1}
  65. Segment(O'_{7}, K'_{1}) → s'_{1}
  66. Mirror(O''_{2}, J'_{3}) → P
  67. Mirror(L', J'_{3}) → L''
  68. Mirror(O''_{2}, J'_{3}) → Q
  69. Segment(L'', Q) → t''
  70. Mirror(O'', J'_{3}) → O'''
  71. Mirror(J', J'_{3}) → J''
  72. Segment(O''', J'') → r''
  73. Mirror(C'_{1}, J'') → R
  74. Mirror(O''_{1}, J'') → S
  75. Segment(R, S) → q''
  76. Mirror(C'_{2}, J'') → T
  77. Mirror(O'_{2}, J'') → U
  78. Segment(T, U) → n''
  79. Mirror(O'_{3}, J'') → V
  80. Mirror(O'_{1}, J'') → W
  81. Mirror(J'_{1}, J'') → Z
  82. Segment(W, Z) → p''
  83. Mirror(O'_{3}, Z) → A_1
  84. Mirror(K', Z) → K''
  85. Segment(A_1, K'') → s''
  86. Segment(C'_{2}, C'_{4}) → f_1
  87. Segment(C, T) → g_1
  88. Ray(E, L') → h_1
  89. Ray(E, O) → i_1
  90. Ray(E, C) → j_1
  91. Ray(E, O') → k_1
  92. Ray(E, K'') → l_1
  93. Sphere(E, C) → o
  94. Intersect(k_1, o) → B_1,
  95. Intersect(l_1, o) → C_1,
  96. Intersect(i_1, o) → D_1,
  97. Intersect(h_1, o) → E_1,
  98. Intersect(j, o) → F_1, G_1
  99. Polygon(C, G_1, D_1) → t1, d_1, c_1, m_1
  100. Polygon(C, B_1, G_1) → t2, n_1, c_2, b_1
  101. Polygon(C, D_1, E_1) → t3, e_1, c_3, p_1
  102. Polygon(C, C_1, B_1) → t4, q_1, c_4, r_1
  103. Intersect(j, p'_{1}) → H_1
  104. Polygon(C_1, G_1, B_1) → t5, s_1, t_1, a_1
  105. Polygon(G_1, E_1, D_1) → t6, f_2, g_2, h_2
  106. Rotate(l1, 90°, j) → l1'
  107. Rotate(l1, 180°, j) → l1'_{1}
  108. Rotate(l1, 270°, j) → l1'_{2}
  109. Rotate(l1, 0°, j) → l1'_{3}
  110. Line(E, C) → i_2
  111. Rotate(l2, 120°, i_2) → l2'
  112. Rotate(l2, (-(120°)), i_2) → l2'_{1}
  113. Rotate(l2, 0°, i_2) → l2'_{2}
  114. Line(E, B) → j_2
  115. Rotate(l2', 120°, j_2) → l2''
  116. Rotate(l2'', (-(120°)), i_2) → l2'''
  117. Rotate(l2'', 120°, i_2) → l2'''_{1}

AI Drawing Prompt Reference

Construct a cube pattern on a sphere. First, determine points on the sphere. Then, create a cube grid. Next, apply rotation and mirroring commands for spatial transformations. Finally, connect key points and draw line segments to form a symmetric cube pattern.
The prompt above was compiled from the original drawing commands and is for reference only.