|
|
发表于 2007-4-6 19:00:23
|
显示全部楼层
来自： 中国
Sub A()' m4 P7 N. l: b1 @- b( v
On Error GoTo 10
) G1 P- t( {" }. Z* B+ A Dim La As Double, Ll As Double, O As Variant& w3 k( }. J% ^! J1 s
Dim Alpha As Double, R As Double5 ~. E1 N! x! t( C& f3 {
Dim A1 As Double, A2 As Double, A3 As Double
/ f* Y8 B/ Y3 L0 B Dim Arc As AcadArc
! y9 i; C$ f2 a: A0 V2 G! K6 T With ThisDrawing
7 Q7 [5 h0 m! F! G N La = .Utility.GetDistance(, vbCrLf & "指定弧长:")* y# p, j7 \- Z3 W
Do Until Ll < La And Ll > 0
* {' N5 i$ p( D) g4 r Ll = .Utility.GetDistance(, vbCrLf & "指定弦长(小于弧长):")
) |! l& I0 f# c$ v5 g& i Loop
6 p4 `, X! E/ N. s$ j; w+ L O = .Utility.GetPoint(, vbCrLf & "指定弧的圆心:")
0 V$ b1 z3 t% M$ l0 } A1 = 0
2 I, e, ?: f( ?4 @3 K2 ` x4 F A2 = 3.14159265358979( l3 {" N- O6 i* e9 l4 }5 ~& O9 o6 m
Do K8 A0 ]0 K: w
Alpha = (A1 + A2) / 22 M( \2 Z0 Y0 a" X1 I7 [7 z6 p
A3 = La / Ll * Sin(Alpha)) G4 I" V- R+ s0 Y. W
If Alpha = A1 Or Alpha = A2 Or Alpha = A3 Then5 T- b$ ]+ e! ^5 }9 c+ x4 l9 A
Exit Do' a- B y; d6 p& ?2 C: m( l
ElseIf A3 < Alpha Then
4 K5 N: g* J" b3 x# d6 ~ A2 = Alpha- B* j3 P& P; y' N* E# o% ]& J
Else- l0 l. j' g$ R' C' ^# s) n
A1 = Alpha
& ?# H* `4 ^1 H End If u) G6 w: a( X& Q, t1 d: ^
Loop
$ [9 u! @% f8 Z: v R = La / Alpha / 23 ~" t& f1 ^; ]8 `, {( S
Set Arc = .ModelSpace.AddArc(O, R, 1.5707963267949 - Alpha, 1.5707963267949 + Alpha); c" x; w* K" T. o; t6 W- M1 s
.ModelSpace.AddLine Arc.StartPoint, Arc.EndPoint2 B0 }: i# @! P& O0 o' o
End With2 G1 { w$ q# w! X
10: End Sub |
评分
-
查看全部评分
|
发表于 2007-4-6 13:59:18
发表于 2007-4-6 16:20:03
楼主
