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UID396100
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在线时间 小时
注册时间2007-10-17
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发表于 2011-12-24 13:07:17
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来自: 中国山东青岛
工具 宏 打开VBA管理器5 a8 z4 f9 i o# X8 Y# R+ N
插入模块 复制如下 运行 即得渐开线 有了渐开线 齿轮不就出来了吗
: j& o% R3 k, m1 x9 E4 S% ?1 QSub jkx()
) L% a5 N% u$ P( U' l8 z! J! ^9 |Rem 绘制渐开线,* s) k3 q8 e0 o! l
Dim d As Double '节圆直径
0 p: M1 D) v1 \! RDim r As Double '节圆半径
3 I. g! a A, v. }) ODim A As Double '总展开角度; z+ L/ }4 o% U7 J' x0 Z5 M
Dim Ai As Double '展开角度/ S3 J1 u" S! A! {( B
Dim Li As Double '展开弧长$ u) l- q. G$ `
d = 100
X+ y, c4 y" R1 _" c8 {! CA = 360, c, D: {" p: \. d
r = d / 24 c" F6 \* n V0 l' K
Dim Pnt1(2) As Double8 n2 i9 A8 @. P1 T4 y B
Dim Pnt2(2) As Double% M" o' i$ q3 g& U
Dim PntLst() As Double, N As Integer) X* c& s: _/ S6 P C& Q2 y! A% T4 ?
ThisDrawing.ModelSpace.AddCircle Pnt1, r6 a7 I' X Y9 ?4 E
For Ai = 0 To A * Atn(1) / 45# Step Atn(1) / 45#
. R2 a% e; k M- O) k7 tLi = r * Ai
1 y n) w# ?3 U6 c/ N- Q+ }4 ZPnt1(0) = r * Sin(Ai)
2 |* Q W$ i( n. A! |Pnt1(1) = r * Cos(Ai)
, f! K5 s1 j& _Pnt2(0) = Pnt1(0) - Li * Cos(-Ai)
" o4 {* W; C! S& XPnt2(1) = Pnt1(1) - Li * Sin(-Ai). N X! K3 G2 l, e! D; ~- E
ThisDrawing.ModelSpace.AddLine Pnt1, Pnt2
% H+ P; Z7 ^1 `- ^N = N + 19 f* k* D0 T, w. G
ReDim Preserve PntLst(N * 2 - 1)3 p1 L: w' a! F; G" o
PntLst(N * 2 - 2) = Pnt2(0)
/ O# x8 A: q. i, T' Y; f& ]; TPntLst(N * 2 - 1) = Pnt2(1)
% Q; x! b. ~$ d# W$ `# O! dNext
9 \- H/ z$ E0 t6 f' Q2 h% j2 DIf N > 1 Then
" k S7 `. f1 K4 X- SThisDrawing.ModelSpace.AddLightWeightPolyline PntLst# m9 I/ P( b$ ]! }9 E4 b
End If. X8 D# j% v( x+ W$ j3 t+ z/ f5 L
End Sub |
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