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Sub AddArcLength()* N4 \6 l' D( R) i) S
' This example creates an arc in model space.
1 b2 A9 v5 J, y: X ' 已知圆心角、弧长绘弧
) d" q4 v$ F! k) V2 | Dim arcObj As AcadArc6 ^8 B" C+ v6 b5 W1 [3 j. N; s
Dim centerPoint As Variant/ M2 c- ]% E3 t5 b' y
Dim radius As Double( u. F3 s! m" P3 U
Dim startAngleInRadian As Double
% j3 G; B2 ~- }2 w! w6 B Dim endAngleInRadian As Double
% V0 G2 C+ ^0 ], g1 n Dim ARCLength As Double% c" ^' F) ~) j
Dim lineobj As AcadLine- v" X6 r4 v2 D r, F+ B3 n
Dim getobj As ACADObject! u2 o) @7 M, d8 ^( o0 T+ f; o
Dim p As Variant" N3 @+ G! E6 F ]" W5 j* q: M
?3 u( J0 X2 f% R6 ?, p 'centerPoint(0) = 0#: centerPoint(1) = 0#: centerPoint(2) = 0#% z1 P5 r; }8 H7 N0 E6 \
centerPoint = ThisDrawing.Utility.GetPoint(, "请指定圆心:")# r! j: V8 K1 p) N; x! f
ThisDrawing.Utility.GetEntity getobj, p, "选择第一条直线:"4 z5 P/ A- j& T- s
startAngleInRadian = getobj.Angle
# {) U' \; K4 y$ I: y5 J ThisDrawing.Utility.GetEntity getobj, p, "选择第二条直线:"' ^2 J' ~/ C# q2 b
endAngleInRadian = getobj.Angle
8 y: L+ _: K4 R2 q' v! \( v8 |2 w/ { ARCLength = ThisDrawing.Utility.GetString(0, vbCrLf & "所绘弧长:"), h$ `5 X; l$ r" v. \) W) K
radius = ARCLength / (endAngleInRadian - startAngleInRadian)
6 b! q/ g; Z Z, n, G1 p
/ ?. o: d: {2 T3 f [1 D& A( j ' Create the arc object in model space
m5 N/ C8 h" d0 S5 E! X Set arcObj = ThisDrawing.ModelSpace.AddArc(centerPoint, radius, startAngleInRadian, endAngleInRadian)
, [+ l% _9 @9 b/ Z- D, p3 O' ZoomAll+ _9 A' [4 f% G3 J L7 h0 z
End Sub |
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发表于 2009-6-10 08:42