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Sub jkx()7 ` m6 D; O) E/ L7 j
Rem 绘制渐开线,
2 h/ I5 ~' z/ Q) U* p v, sDim d As Double '节圆直径
0 `7 V) `; ^" ~0 n# o: m- a, o1 nDim r As Double '节圆半径
5 e3 p& H, Z. P% g; t2 oDim A As Double '总展开角度' J& E+ K! w" h9 h2 {8 g/ B! |
Dim Ai As Double '展开角度
5 A7 y& z" F U- S& s# NDim Li As Double '展开弧长' \2 T$ v3 z" z X" }
d = 100
- h# u# r3 [! g$ E+ R' n% VA = 360- p' t. ?' K3 T; W
r = d / 26 a3 n% @) S2 d; S0 }
Dim Pnt1(2) As Double
5 h% [2 q5 B) m% B- a( T, ZDim Pnt2(2) As Double8 z q6 N7 N. d
Dim PntLst() As Double, N As Integer% V' ]4 q' k1 C0 W, x
ThisDrawing.ModelSpace.AddCircle Pnt1, r
. b7 Z3 A" q5 V. R& l) NFor Ai = 0 To A * Atn(1) / 45# Step Atn(1) / 45#8 b2 f8 R6 ]. B' }( f! H
Li = r * Ai! [ i. e8 W7 O9 ]- @; ]9 ~
Pnt1(0) = r * Sin(Ai)* f. |5 o% z' [1 s4 T
Pnt1(1) = r * Cos(Ai)8 r/ h6 k; g* m6 N) V2 ~" H
Pnt2(0) = Pnt1(0) - Li * Cos(-Ai)$ b9 ^+ A6 J5 Y0 `
Pnt2(1) = Pnt1(1) - Li * Sin(-Ai)
3 n3 d8 J. V& D9 C, SThisDrawing.ModelSpace.AddLine Pnt1, Pnt2( K3 s5 t9 B0 n& ^
N = N + 1
; Y% T4 K- X$ GReDim Preserve PntLst(N * 2 - 1)
0 @+ r; j/ z$ d- K( R9 }PntLst(N * 2 - 2) = Pnt2(0)& N0 k" x/ R. C! T, r
PntLst(N * 2 - 1) = Pnt2(1)
" G! I ]2 H8 A- `Next; e) J" ]& D2 ]
If N > 1 Then1 i1 V7 {" v/ D2 u
ThisDrawing.ModelSpace.AddLightWeightPolyline PntLst
# P: u2 r$ J* n; jEnd If
) Z# Z, _1 t4 o6 {, Z0 D2 |! YEnd Sub |
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发表于 2009-12-16 22:54:24
