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Sub AddArcLength()1 {) c' @4 L$ \0 Q) I6 l) b
' This example creates an arc in model space.
/ v& N6 r& y0 q: W' M2 [ ' 已知圆心角、弧长绘弧3 W5 P3 N1 w* x8 o+ Q
Dim arcObj As AcadArc
% p5 u5 P; u; V& ~* E2 c+ r Dim centerPoint As Variant
, @) d: W5 o" X# \9 k1 y Dim radius As Double
& ~0 |" ~2 C; j* E, s; |# J Dim startAngleInRadian As Double
, H# K7 O% t( H7 z7 N, E Dim endAngleInRadian As Double4 z# w' B5 v" e/ [ J6 x$ V+ I
Dim ARCLength As Double
# r8 W9 E+ _! }6 E/ o8 b3 M Dim lineobj As AcadLine
* G9 ~5 Y0 r8 w Dim getobj As ACADObject
1 w9 [) n# [2 U) o Dim p As Variant5 \, @; Y) G. [) z6 `% M
" n4 y, j! X5 `6 R4 J 'centerPoint(0) = 0#: centerPoint(1) = 0#: centerPoint(2) = 0#4 i- t( }9 Z2 a4 f1 {, b* X
centerPoint = ThisDrawing.Utility.GetPoint(, "请指定圆心:")
: i' h, ?: h. p0 n! B ThisDrawing.Utility.GetEntity getobj, p, "选择第一条直线:"
3 ], N+ O5 p3 {- ^* n3 ]7 g startAngleInRadian = getobj.Angle$ _7 G; [8 A) w
ThisDrawing.Utility.GetEntity getobj, p, "选择第二条直线:"
* e4 Q9 F0 ?8 w8 p% O endAngleInRadian = getobj.Angle
/ J0 m7 x1 ]3 q2 M# M ARCLength = ThisDrawing.Utility.GetString(0, vbCrLf & "所绘弧长:")
, I0 A7 H M" N7 ?! [ radius = ARCLength / (endAngleInRadian - startAngleInRadian)9 e2 L0 ]9 O/ w) H0 O# y1 h# G
9 R6 m1 w7 z+ s3 P y ' Create the arc object in model space
9 T2 I/ ?6 o/ e4 O Set arcObj = ThisDrawing.ModelSpace.AddArc(centerPoint, radius, startAngleInRadian, endAngleInRadian)
5 E: S" Z& \, f- z l' ZoomAll
* E: X5 \$ L$ |+ ?9 `/ l2 N) SEnd Sub |
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发表于 2009-6-10 08:42