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Sub AddArcLength()
% G( b3 [/ Y3 y# P. m$ n) b- B ' This example creates an arc in model space.) R: y$ f1 B* t% e
' 已知圆心角、弧长绘弧
# f- U: X; }7 ^/ I8 T3 t' [) ] Dim arcObj As AcadArc6 K, J( B: S/ t% `7 d5 b
Dim centerPoint As Variant
& N Q# G) o4 V Dim radius As Double; ~$ ]# ]# R3 B
Dim startAngleInRadian As Double
8 l) Y( c A' [2 R Dim endAngleInRadian As Double& p G8 W3 P( V, {7 S1 D
Dim ARCLength As Double
' E8 k/ Z/ F: q$ G" E' S Dim lineobj As AcadLine8 W* C3 |4 n3 B0 ?; O) ~8 h% j) H
Dim getobj As ACADObject
4 `1 b/ q4 T- b Dim p As Variant
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'centerPoint(0) = 0#: centerPoint(1) = 0#: centerPoint(2) = 0#
( Q( B- v5 h: n; q. Y8 w centerPoint = ThisDrawing.Utility.GetPoint(, "请指定圆心:")' r U1 b( x$ O+ C% O7 E7 p
ThisDrawing.Utility.GetEntity getobj, p, "选择第一条直线:"5 C; M0 m4 S/ H. ~: p' B
startAngleInRadian = getobj.Angle( n; M' |3 w% H$ w
ThisDrawing.Utility.GetEntity getobj, p, "选择第二条直线:"* `+ }6 a/ v6 ^- d# A& G. R O8 x
endAngleInRadian = getobj.Angle
$ P3 `( B R2 A9 V ARCLength = ThisDrawing.Utility.GetString(0, vbCrLf & "所绘弧长:")
! R* ` }- B9 J6 ]; T3 t radius = ARCLength / (endAngleInRadian - startAngleInRadian)
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4 f; M) o& g! ]: j' O ' Create the arc object in model space
0 D2 |* L! q, ] Set arcObj = ThisDrawing.ModelSpace.AddArc(centerPoint, radius, startAngleInRadian, endAngleInRadian)( q+ G% w! E' V' l$ l7 N4 B1 T
' ZoomAll
$ H4 V. l% k7 q+ N) X% AEnd Sub |
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发表于 2009-6-10 08:42