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x
Sub jkx()
% X1 M% ~+ c2 e& d6 a' l9 |' w: _Rem 绘制渐开线,
3 `) v+ [$ g+ X* F( b5 y, N% m+ SDim d As Double '节圆直径
$ Q; {3 ^5 O5 DDim r As Double '节圆半径
' k5 z7 q4 K4 C# F. a5 m- o9 i' JDim A As Double '总展开角度: H/ u/ i) x, o2 c; r: J) _ s
Dim Ai As Double '展开角度
0 o G" j1 i3 |8 NDim Li As Double '展开弧长
$ U! o# h2 l& r( nd = 100! @0 [1 e) L! }8 a, N7 f2 W
A = 360
1 T# F6 Z4 F9 M. K- T3 L0 Q# O* Lr = d / 2- e- {# n: O( |9 l9 H$ G# S
Dim Pnt1(2) As Double/ S/ K y6 o$ `" W' o+ U( h0 m; Y/ |
Dim Pnt2(2) As Double5 f2 }4 v { O* x4 O2 N$ u- a. w) f
Dim PntLst() As Double, N As Integer
! Q* f2 R. Y2 x1 [ThisDrawing.ModelSpace.AddCircle Pnt1, r: |2 {7 B8 m- p: _
For Ai = 0 To A * Atn(1) / 45# Step Atn(1) / 45#
2 }6 ?& f8 _7 k- PLi = r * Ai
3 Y3 _" ~& A7 {6 u9 g5 {- MPnt1(0) = r * Sin(Ai)
. A% d. U; ?8 e7 U6 XPnt1(1) = r * Cos(Ai)
' ^) S* _1 U. Y2 Q9 jPnt2(0) = Pnt1(0) - Li * Cos(-Ai)
2 V2 z2 O2 ~( E5 ~( e3 g- j( rPnt2(1) = Pnt1(1) - Li * Sin(-Ai)3 W: R' R( {4 N1 ~; s$ n5 L, O2 u
ThisDrawing.ModelSpace.AddLine Pnt1, Pnt26 d/ c$ x) U) i+ g- ~, j' t- H
N = N + 1
* h- h1 l# B% m6 |3 u- q, PReDim Preserve PntLst(N * 2 - 1)- a# S/ j( c/ Z& b
PntLst(N * 2 - 2) = Pnt2(0)1 W# x G; s( l+ c8 I3 R
PntLst(N * 2 - 1) = Pnt2(1)5 `2 ]& Q* t* C
Next
; O* A1 v; j/ ~If N > 1 Then8 D6 C: R$ b6 z" U. N
ThisDrawing.ModelSpace.AddLightWeightPolyline PntLst
( E' q8 |% j2 \% A8 w+ z& AEnd If
: ]+ h6 V% i% s E( eEnd Sub |
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发表于 2009-12-16 22:54:24
