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Sub AddArcLength()
* Z& V" i6 F& n; i ' This example creates an arc in model space.8 \- b/ x1 a+ ?; p
' 已知圆心角、弧长绘弧
- F# e9 n' _2 S1 s2 s4 g$ M Dim arcObj As AcadArc
- l; E8 j. i: r6 R, y6 s" z Dim centerPoint As Variant
0 ?1 z4 ]2 D# \ q8 b X( J7 F Dim radius As Double+ {2 w. S5 E, F6 S7 q. ]1 D3 M
Dim startAngleInRadian As Double4 X e, c: a2 G$ Z
Dim endAngleInRadian As Double& M) |6 ]+ k Y1 O1 J4 y
Dim ARCLength As Double
: g' x9 W- L, |6 L& t4 D( m8 C3 ] Dim lineobj As AcadLine
, H( }/ E+ a4 p- F7 k Dim getobj As ACADObject
0 x1 v6 k. j9 _9 {! j7 e2 _/ R, Z Dim p As Variant
9 N; ]' m1 H6 K9 p9 \- t* _0 i
3 ^ _3 H# V9 C* s- x 'centerPoint(0) = 0#: centerPoint(1) = 0#: centerPoint(2) = 0#
+ E- C( K: I. q centerPoint = ThisDrawing.Utility.GetPoint(, "请指定圆心:")6 Y7 @. d: r4 ^
ThisDrawing.Utility.GetEntity getobj, p, "选择第一条直线:", e0 J/ h. ^0 k4 R
startAngleInRadian = getobj.Angle5 [* o9 X8 E6 B3 I
ThisDrawing.Utility.GetEntity getobj, p, "选择第二条直线:"
# @8 ~8 W D; ^6 j endAngleInRadian = getobj.Angle! Z" l0 N9 o' P% j H
ARCLength = ThisDrawing.Utility.GetString(0, vbCrLf & "所绘弧长:")7 O' \; d* H- v" i5 A. x( R
radius = ARCLength / (endAngleInRadian - startAngleInRadian)6 L" P+ G$ X7 i- Y
8 `, r% `) R$ m
' Create the arc object in model space- B. d* H, T* i
Set arcObj = ThisDrawing.ModelSpace.AddArc(centerPoint, radius, startAngleInRadian, endAngleInRadian)0 }$ n$ a, @3 N1 K) n- g
' ZoomAll
; y$ G! u$ o2 k! P7 S9 x( s! AEnd Sub |
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发表于 2009-6-10 08:42