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发表于 2008-9-26 13:26:01
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来自： 中国辽宁营口
VBA代码:% o6 S4 f+ o* e1 R( I5 S" V
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]' _; n' G7 C% [: xDim S1 As String, S2 As String$ E, D" H' M% X- W+ |
Sub H()
- v" G( l2 ?* z! C5 k2 X Dim Space As Object, P As Variant, P2 As Variant, L As AcadLine# I: k& I6 v2 K5 Q& P& Q
Dim A As Double, A1 As Double, Ag As Double, Ag1 As Double, Ag2 As Double, R As Double+ o6 t) J& @& F: s3 n! C
With ThisDrawing i6 [/ M1 P0 L& K
If .ActiveSpace = acModelSpace Then) U$ ` [ q8 Q. `
Set Space = .ModelSpace: |/ z' Y7 H; r6 ]; V2 Q
Else
9 M1 z) x! A+ n4 d4 B Set Space = .PaperSpace
/ X% g! }" j% U1 t End If
, X6 z' |/ r) _ On Error GoTo 10
6 V5 b9 \ T) A8 U9 u( e; l4 k7 `7 @ P = .Utility.GetPoint(, vbCrLf & "指定弦起点:" )
* ]% q( W8 H8 u4 [% W; a On Error Resume Next- f& ^* [; G4 Y8 L* B5 E
Do
8 P$ x$ S; I/ k" X8 ]* r! X" ~ Err.Clear7 y n* t6 t. v0 n) T7 C
.Utility.InitializeUserInput 0, "Y N"
4 D2 D! u: a1 u, M P2 = .Utility.GetPoint(P, vbCrLf & "指定弦端点或[保留弦(Y)/不保留弦(N)]<N>:" )
- M- Z Z' |2 T/ T1 I3 g: x 1 ?' ^# w: d+ p6 m
If Err.Number = 0 Then! q) L8 N5 c5 t7 \6 m
Set L = Space.AddLine(P, P2)
% Z. P2 Y$ J3 `) d0 a Do
& H; O) J0 L# p( ]. ~4 J Err.Clear
5 i' q2 o: g2 Z% z$ Y: x+ W1 ? .Utility.InitializeUserInput 6, "A C"( F2 d% G% F6 F: t8 u
A = .Utility.GetDistance(P, vbCrLf & "指定弧长或[画圆弧(A)/画圆(C)]<C>:" )
( |3 [7 q9 n2 A; J If Err.Number = 0 And A > L.Length Then
9 X% @1 a" T! m Ag2 = 3.141592653589790 T7 A0 }' ~( C5 r0 \$ j" }
Do
9 v2 j ], \) A& @( [ Ag = (Ag1 + Ag2) / 2#( o! D) L V* `- Z
A1 = Ag * L.Length / Sin(Ag)& i7 Y' B: u& L2 H* ?
If A1 = A Or Ag = Ag1 Or Ag = Ag2 Then Exit Do# j( K: P8 X) A4 q2 U
If A1 > A Then
8 n% n$ Y# O& q- _1 R- @ Ag2 = Ag
# H% B* E9 k3 G( \0 G% k6 m Else
" y4 e+ L& O$ {7 X Ag1 = Ag, Y' s2 ?& n# q) k, r9 E0 j9 L
End If
4 ^; t' T3 h- Q, a- c( ] Loop. N m2 o& J4 g) |" y, `
R = A / Ag1 / 2#
5 C9 a* r1 p5 W* I | P = .Utility.PolarPoint(P, L.Angle + 1.5707963267949 - Ag, R)$ l5 [9 Q& w% r7 U, O
If S2 = "A" Then
) ?1 z. `/ a4 O2 D5 V: O k Space.AddArc P, R, 4.71238898038469 + L.Angle - Ag, 4.71238898038469 + L.Angle + Ag: {5 l( C; }) J# d3 K
Else E" T6 K- I5 p( R# F3 h: J
Space.AddCircle P, R7 ~- E' ]$ S# L2 F+ y! |9 }
End If
! M2 |! ^: I) D8 V2 P( k If S1 = "N" Or S1 = "" Then L.Delete4 E2 L) B! g9 C" I( v, L- e
Exit Do
% B: N( C; x& J. Q ElseIf Err.Number = -2147352567 Then
% c/ V9 V0 h) H L.Delete K/ a; g4 d6 b2 ?
Err.Clear) \; `- N7 N Q1 Y) x
Exit Do
9 G+ h( n% \* V I ElseIf Err.Number <> 0 Then% }( l/ Y) J+ [" E# v; [* N+ g
S2 = .Utility.GetInput2 e t) B! v5 U$ B
End If8 V3 ~( Q/ G' I7 Q
Loop
% z! d |! }/ _ ElseIf Err.Number = -2147352567 Then
, @+ ^; i: a! J Exit Do) F" k+ c8 D" t) V$ g! P
Else6 g$ {' J( v ~+ K* `! \
S1 = .Utility.GetInput
& z$ _2 l6 ]- Y( O1 ] End If
& B/ T, u+ |# Z7 p1 D. W Loop Until Err.Number = 0
5 X& L% G+ Q. \# `8 b! o9 P End With8 O0 C! Y# L' G4 l8 u- M* _! v
10: End Sub: z R' y6 V5 n6 T2 r8 {
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$ J$ n; J( Z( L0 k0 ]+ l使用方法:4 Q6 T) F, {# j' p7 [
1.把上面代码粘贴到VBA编辑器Thisdrawing代码窗口,或下载附件解压后加载
x$ q0 M8 K" L! B8 l+ @2.Alt+F8,在弹出的"宏"对话框中点运行按钮,或在命令行键入"-vbarun",回车,"H",回车
6 \1 t! r6 K5 r$ o/ M, V3.按命令行提示操作 |
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发表于 2008-9-24 16:35:42
你还缺一个条件：要么是对应角度，要么是周长！下图到底是哪种？如何是好？
楼主
！角度是可以测量的！3 p+ g' r' ^. s( q' w
:L