动态可调组合立体图形
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①本范例演示了一个动态可调的组合立体图形,通过参数调整展示不同几何体的组合效果;②涉及的核心数学概念包括立体几何、相似三角形、分段函数、直方图、差值与斜率、三角函数;③作图要点提炼自构造摘要,使用了Ray(射线)、Point(点)、Cylinder(圆柱)、Circle(圆)、CircleArc(圆弧)、Intersect(交点)、Vector(向量)、Translate(平移)、Segment(线段)等GeoGebra命令与对象;④适合高中及以上学段,用于立体几何、函数与几何综合教学。
GeoGebra 命令及参数
Ray((0, 0, 0), (0, 0, 1)) → fPoint(f) → BCylinder(C, B, r) → a, d, e, bCircle(f, D) → gCircle(f, A) → kCircleArc(B, D, R) → qIntersect(f, q, 1) → SCircleArc(B, S, K) → sCircleArc(B, F, S) → pCircleArc(B, S, L) → tCircleArc(B, G, S) → c_1CircleArc(B, S, M) → d_1CircleArc(B, H, S) → e_1CircleArc(B, S, N) → f_1Intersect(f_1, p, 2) → QCircleArc(B, I, Q) → g_1CircleArc(B, Q, O) → h_1Intersect(h_1, p, 2) → TCircleArc(B, J, T) → k_1CircleArc(B, T, P) → p_1Vector(D, A) → uTranslate(F, u) → F'Translate(G, u) → G'Translate(H, u) → H'Translate(H, u) → H'_1Translate(I, u) → I'Translate(J, u) → J'Translate(K, u) → K'Translate(L, u) → L'Translate(M, u) → M'Translate(g, u) → g'Translate(O, u) → O'Translate(N, u) → N'Translate(P, u) → P'Translate(D, u) → D'Segment(G, G') → hSegment(H, H'_1) → mSegment(I, I') → nSegment(J, J') → i_1Segment(K, K') → j_1Segment(L, L') → l_1Segment(M, M') → m_1Segment(N, N') → n_1Segment(O, O') → q_1Segment(P, P') → r_1Segment(D, A) → s_1Segment(F, F') → t_1