球体光照与热点演示

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Point(yAxis) → B
3. Circle(A, B) → c
4. AngularBisector(Light_1, A, Eye) → a
5. Intersect(c, a) → E, Hotspot_1
6. OrthogonalLine(Hotspot_1, a) → b
7. Vector(Light_1, Hotspot_1) → u
8. Vector(Hotspot_1, Eye) → v
9. Tangent(Light_1, c) → d, e
10. Intersect(c, d) → C
11. Intersect(c, e) → D
12. Segment(C, D) → f
13. Polygon(Light_1, C, D) → poly1, d_1, light, c_1
14. Ray(Light_1, D) → g
15. Ray(Light_1, C) → h
16. Point(xAxis) → F
17. Circle(F, G) → k
18. Line(F, G) → i
19. OrthogonalLine(F, i) → j
20. Intersect(k, j) → I, J
21. OrthogonalLine(A, f) → l
22. Intersect(l, f) → K
23. Distance(C, K) → distanceCK
24. Angle(Eye, Hotspot_1, Light_1) → α
25. Line(A, Eye) → m
26. Line(K, m) → n
27. Distance(n, m) → o
28. Line(D, m) → p
29. Distance(n, p) → q
30. Angle(K, Eye, A) → β
31. EllipseFromCenterAndAxes(H, M, L) → loc1
32. Line(Hotspot_1, m) → r
33. Distance(m, r) → s
34. Line(Light_1, r) → t
35. Distance(t, m) → w