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Sub AddArcLength()9 r% ]" K( g8 _/ ~2 ]+ U ]1 D
' This example creates an arc in model space.; ~4 }4 u& T5 `. d. X
' 已知圆心角、弧长绘弧+ n* Z) D \ z* @) a5 v4 r+ s7 H
Dim arcObj As AcadArc
% Z' Y& l: n/ s9 {# q Dim centerPoint As Variant% \2 e/ I! f- Q: X6 [' M2 B- j
Dim radius As Double
# ?& O0 q$ f+ o( k9 L' R- ], y& z& @. k T Dim startAngleInRadian As Double
$ H, a8 W _3 e. C Dim endAngleInRadian As Double+ X+ a) ?7 S+ Y, G6 t. z. }4 k& H
Dim ARCLength As Double* G \3 ?) G/ p) _
Dim lineobj As AcadLine
/ S. d k) K3 p8 ]5 c7 e Dim getobj As ACADObject
: \# ~& H4 J% ~8 f( w$ I Dim p As Variant
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'centerPoint(0) = 0#: centerPoint(1) = 0#: centerPoint(2) = 0#5 g( J* p* z* j! q) N
centerPoint = ThisDrawing.Utility.GetPoint(, "请指定圆心:"), r6 {2 F' i4 }& j: ^
ThisDrawing.Utility.GetEntity getobj, p, "选择第一条直线:"# K; u n& D, a* z f
startAngleInRadian = getobj.Angle5 h" M0 E7 W$ u( C# z0 U. v5 _& |- ]; B
ThisDrawing.Utility.GetEntity getobj, p, "选择第二条直线:"% V' Q3 S. i1 l0 M; j- ^
endAngleInRadian = getobj.Angle2 e8 W9 k3 g0 Z7 L8 s' t: R
ARCLength = ThisDrawing.Utility.GetString(0, vbCrLf & "所绘弧长:"); B+ v" E! x) z2 y& _! x, b
radius = ARCLength / (endAngleInRadian - startAngleInRadian). T- W' N: G% Z& P! P
+ r8 Z3 r* k8 f# C, n; |$ ~ ' Create the arc object in model space4 B3 _. n- b% v2 q
Set arcObj = ThisDrawing.ModelSpace.AddArc(centerPoint, radius, startAngleInRadian, endAngleInRadian)
! c6 j4 o* R2 V' _' ZoomAll* A+ I& M( E: Y7 Q9 T
End Sub |
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发表于 2009-6-10 08:42