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Sub jkx()/ S0 z8 ?$ U. k* e
Rem 绘制渐开线,; r' D# ~' d2 g% h
Dim d As Double '节圆直径1 ?4 W- O/ J1 x% ^
Dim r As Double '节圆半径
4 ]6 }4 A6 {: a4 M0 vDim A As Double '总展开角度
, H2 H! V& K0 E) Y" i2 cDim Ai As Double '展开角度2 P( ]/ T$ C: I3 B* j/ M
Dim Li As Double '展开弧长0 t* h( q9 }% X: ^1 T
d = 100, f/ D- ~$ \- Y# ]
A = 360
) D. W( F& r& l8 y4 Ir = d / 24 H, ^1 D6 o$ O
Dim Pnt1(2) As Double
) S/ e% _. L: X! B/ JDim Pnt2(2) As Double) g& j7 @, F1 I/ F" H
Dim PntLst() As Double, N As Integer, V% b% o! ?5 @3 n, M }# x7 H6 `
ThisDrawing.ModelSpace.AddCircle Pnt1, r5 O. l" c x$ @5 F; f* z" ^
For Ai = 0 To A * Atn(1) / 45# Step Atn(1) / 45#
7 K/ j9 I. A8 S( KLi = r * Ai+ v8 b" O7 l) w, H: [: |* ^9 v* I
Pnt1(0) = r * Sin(Ai)5 [6 O3 A! y, T$ W8 x. a
Pnt1(1) = r * Cos(Ai)
- I% U* ], \- X# BPnt2(0) = Pnt1(0) - Li * Cos(-Ai)
5 w# @7 N: y* `" a; {. iPnt2(1) = Pnt1(1) - Li * Sin(-Ai)
% D3 `, M2 f' ~( H1 m) w. S; uThisDrawing.ModelSpace.AddLine Pnt1, Pnt2! o* S* F9 D2 K+ B/ O! _' e
N = N + 16 V* t% P5 Y5 I/ m6 [! K [
ReDim Preserve PntLst(N * 2 - 1)0 M2 d* O; S% M' |8 w- k% o: C" h
PntLst(N * 2 - 2) = Pnt2(0)4 H3 ~! C3 z- A1 q; @
PntLst(N * 2 - 1) = Pnt2(1)* `$ S9 k$ K ]6 l# [# M0 @7 ^) z
Next
* Z+ A1 }6 b- h8 \. b7 mIf N > 1 Then
/ c* i! @7 [ z/ i+ S6 i$ CThisDrawing.ModelSpace.AddLightWeightPolyline PntLst$ t5 ]1 H# z1 e8 {: z$ f4 x! D
End If1 p! v" F+ O% O2 `
End Sub |
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发表于 2009-12-16 22:54:24
