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Sub AddArcLength()
7 b' T" @ F7 s' v% n3 W8 q: N ' This example creates an arc in model space.$ R8 d) w; T7 N8 b
' 已知圆心角、弧长绘弧
. ^4 `& `3 N6 S% P Dim arcObj As AcadArc
- _, Q% X( w4 e. Q9 P Dim centerPoint As Variant _6 c5 E8 \% _7 E' ~9 G- ~
Dim radius As Double3 ]% x, ]& ^3 }2 o) H
Dim startAngleInRadian As Double, @! [' \; ~9 E" {, g" E
Dim endAngleInRadian As Double
, x/ [$ g, a4 r* p Dim ARCLength As Double8 q3 } J& R" h0 L0 a& H
Dim lineobj As AcadLine
" ]. w% l6 ?" M9 |* \7 u Dim getobj As ACADObject
. d, \8 d0 Y8 u/ O; A T, l0 r# @ Dim p As Variant
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'centerPoint(0) = 0#: centerPoint(1) = 0#: centerPoint(2) = 0#
( P+ o6 P6 N+ m- L. d6 u centerPoint = ThisDrawing.Utility.GetPoint(, "请指定圆心:")
& S' K* H! G. O2 l4 s" D ThisDrawing.Utility.GetEntity getobj, p, "选择第一条直线:"- J/ l% r8 Y9 Y) y8 f; K4 Z) Z. \9 @$ h
startAngleInRadian = getobj.Angle
; Q" q( {2 ~ m" B$ | ThisDrawing.Utility.GetEntity getobj, p, "选择第二条直线:"
. P7 o4 y! p; h: R1 ~0 ` endAngleInRadian = getobj.Angle( z1 B, N* P+ o5 g) w" J* ?
ARCLength = ThisDrawing.Utility.GetString(0, vbCrLf & "所绘弧长:")
6 e" {/ l9 Q3 Z5 k a- ~! j% X1 { radius = ARCLength / (endAngleInRadian - startAngleInRadian)
- C5 h+ }. J) h: Q2 E6 J
5 K" g1 q( W E/ i( S- o6 v! X# K) { ' Create the arc object in model space
: [8 d! M6 y. A# J. R* r! Q, B3 Y Set arcObj = ThisDrawing.ModelSpace.AddArc(centerPoint, radius, startAngleInRadian, endAngleInRadian); T2 [. n, F ^& C# c
' ZoomAll9 j1 k& ^; c; k8 U( s
End Sub |
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发表于 2009-6-10 08:42