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Sub jkx(): Y& o, | q# o1 O
Rem 绘制渐开线,
9 M5 D( [3 `' \" PDim d As Double '节圆直径
6 l0 K+ t5 `4 E) f1 T( d# v4 _% ]Dim r As Double '节圆半径
/ ?+ _# |# R+ p9 s; Q$ ~Dim A As Double '总展开角度
! A$ ^, H. R- H' P8 A: X2 jDim Ai As Double '展开角度
9 T @- _: ?. _* \$ f" fDim Li As Double '展开弧长
$ h! Z" S$ y3 r! b: n% M2 |d = 1004 }' L# O* R. M C
A = 360
9 R3 E0 C) E* n% B8 Q- Ar = d / 2* x5 \( k& d0 a; F/ k( P3 ?- Q
Dim Pnt1(2) As Double
( n+ _( L9 o; X1 @5 iDim Pnt2(2) As Double
( n9 S; F( f4 @Dim PntLst() As Double, N As Integer- {% E# x7 n! {" ]# E; A; ?
ThisDrawing.ModelSpace.AddCircle Pnt1, r% i$ Z$ J5 W, x1 G! ~# U
For Ai = 0 To A * Atn(1) / 45# Step Atn(1) / 45#/ O& ?; r: ]0 h; y! y3 h2 O/ J
Li = r * Ai
7 \8 a9 M1 {: Q+ B& A bPnt1(0) = r * Sin(Ai)
' E- Q& {/ N1 ?) e9 d$ WPnt1(1) = r * Cos(Ai)
, }, {) [$ U2 P8 v# f) L2 NPnt2(0) = Pnt1(0) - Li * Cos(-Ai)
/ d: C* |! ?8 sPnt2(1) = Pnt1(1) - Li * Sin(-Ai)$ e! Y/ h5 Y7 n/ Y$ r) t2 Q
ThisDrawing.ModelSpace.AddLine Pnt1, Pnt2
: ?% @* w! @5 A5 O; ?; o6 s$ {! KN = N + 16 e3 J$ X8 m c
ReDim Preserve PntLst(N * 2 - 1)
# x& Z- V/ Y0 d. p2 ~3 v, z9 oPntLst(N * 2 - 2) = Pnt2(0)/ l+ g1 m+ \, h% {8 q
PntLst(N * 2 - 1) = Pnt2(1)6 s, r9 V. c C3 P, C4 @! E
Next( e/ ]0 v( Z5 y0 M7 C# m
If N > 1 Then9 v& J( |3 R: I% `" H. j+ b
ThisDrawing.ModelSpace.AddLightWeightPolyline PntLst
* {4 f: I! @" b, m7 F! jEnd If
. e/ i# K$ L# }' T! A( S8 c! k3 C, ?End Sub |
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发表于 2009-12-16 22:54:24
