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Sub AddArcLength()4 c0 n0 a& A Y" ~" w" M
' This example creates an arc in model space.
Y1 s' F3 l! N2 U& B/ R ' 已知圆心角、弧长绘弧$ H: k W" L( I0 F" h* g' Z
Dim arcObj As AcadArc% v' f, b; m1 Y( x3 i
Dim centerPoint As Variant& S% v6 v/ w8 i
Dim radius As Double
& W" i* B: g! m8 \ Q( p% {6 U$ g Dim startAngleInRadian As Double
$ M/ X4 n( C @' H/ R4 p, h6 z Dim endAngleInRadian As Double
# S% z4 u6 @1 I6 _8 C) C Dim ARCLength As Double
" ~7 J) r- c) k4 {! L+ P Dim lineobj As AcadLine
0 x0 I& L: M7 i Dim getobj As ACADObject5 E/ {# Y9 u1 e; i8 V
Dim p As Variant
: B! T# [2 u! y; `1 L7 ^7 n0 n3 K ( ^' s2 n) \, w
'centerPoint(0) = 0#: centerPoint(1) = 0#: centerPoint(2) = 0#
2 f5 u) w. e3 J7 e centerPoint = ThisDrawing.Utility.GetPoint(, "请指定圆心:")
( E: R3 a( b5 e2 g ThisDrawing.Utility.GetEntity getobj, p, "选择第一条直线:") z( q7 w+ u6 D
startAngleInRadian = getobj.Angle
6 Z) i% F5 L2 s* X& i2 Z* h" N ThisDrawing.Utility.GetEntity getobj, p, "选择第二条直线:"# n$ L E( x3 J, k
endAngleInRadian = getobj.Angle6 F; i! f$ q1 d. P- J6 K( A! D
ARCLength = ThisDrawing.Utility.GetString(0, vbCrLf & "所绘弧长:")* S$ {, _2 c6 D3 U
radius = ARCLength / (endAngleInRadian - startAngleInRadian)6 H% h. u4 B# p W8 U) D2 ?+ t
2 E: u; `: D: O | ' Create the arc object in model space6 u$ {8 y7 z5 H" b
Set arcObj = ThisDrawing.ModelSpace.AddArc(centerPoint, radius, startAngleInRadian, endAngleInRadian): H9 U; I) v/ f7 S; x
' ZoomAll
/ o+ K; l& J* lEnd Sub |
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发表于 2009-6-10 08:42