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发表于 2011-6-10 08:16:51
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来自: 中国辽宁
边界必须是一个"环".两个圆应该是构成两个内边界.应该用两次"AppendInnerLoop"方法,每次添加一个"圆"内边界.- Sub Example_AppendInnerLoop()
$ l5 O* K& U3 e0 P - ' This example creates an associative hatch in model space, and then appends an outer loop to the hatch.
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- Dim hatchObj As AcadHatch
4 \; I/ }, m+ J7 N - Dim patternName As String7 D3 b" L U( x
- Dim PatternType As Long
. I% K2 u* ~1 d' ^ - Dim bAssociativity As Boolean1 l- ]1 C( C8 Q+ F9 R1 A5 G. f0 d
- 'Dim innerLoop(0 To 1) As AcadEntity
3 k. Y4 t4 H) ? - Dim innerLoop(0) As AcadEntity
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- ' Define the hatch# x# R; i* I S5 U- m# R9 t" ^
- patternName = "ANSI31"% I2 e8 g, W# Y, Q2 r
- PatternType = 0
& o% M5 G. R0 T0 n9 W! N - bAssociativity = True
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' K' W& s6 y, T* X* t v- ' Create the associative Hatch object
9 f u# ]% i; W4 b - Set hatchObj = ThisDrawing.ModelSpace.AddHatch(PatternType, patternName, bAssociativity)9 Z, H5 E* v: P9 j5 w
0 y5 W! A" J ^0 Y- ' Create the outer loop for the hatch.
0 k1 V: s: m. o$ D - ' An arc and a line are used to create a closed loop.
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/ [' K/ }( T' Q) b) o" k9 c- Dim outerLoop(0 To 1) As AcadEntity) M: v w0 _% j W- k0 l
- Dim center(0 To 2) As Double
4 }' E+ a2 }' N - Dim radius As Double
n \* w8 c$ i5 i& V& L - Dim startAngle As Double
5 F/ E% ~. x F8 Z0 e - Dim endAngle As Double4 O# E0 }+ N+ V A
- center(0) = 50: center(1) = 30: center(2) = 0
$ c: H8 q# N3 k+ L! C6 x0 H - radius = 30
" r) m/ F5 Q5 L/ Z% K - startAngle = 0( G$ T/ f; j# W' R1 W) e( ?' B. |! d
- endAngle = 3.1415920 a8 |8 B5 g( B I2 Z( H, P: K
- Set outerLoop(0) = ThisDrawing.ModelSpace.AddArc(center, radius, startAngle, endAngle)8 \& Q6 S6 I: c$ Z4 f
- Set outerLoop(1) = ThisDrawing.ModelSpace.AddLine(outerLoop(0).StartPoint, outerLoop(0).EndPoint)
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- ' Append the outer loop to the hatch object$ ^1 m m; y9 c1 o' J3 R; K
- hatchObj.AppendOuterLoop (outerLoop)/ ]" m! u* E( n( s
9 v7 G6 I- L+ ]6 @2 ^- center(0) = 35: center(1) = 40: center(2) = 0
9 I+ Z: Z+ a' s9 s6 E1 i' Y- L - radius = 5 B1 U. n' ^7 l9 l
- Set innerLoop(0) = ThisDrawing.ModelSpace.AddCircle(center, radius)
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- ' Append a circle as the inner loop for the hatch.
" U* \; B' h) W$ L8 u - hatchObj.AppendInnerLoop (innerLoop): j, ^0 s+ s* H2 I/ N
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- center(0) = 55: center(1) = 40: center(2) = 0; `4 R0 S9 E4 k/ {
- radius = 5
, t( x0 V" E/ J0 c, w& ^* h - Set innerLoop(0) = ThisDrawing.ModelSpace.AddCircle(center, radius)
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* q, Y. C% h( t! K( r* m- ' Append a circle as the inner loop for the hatch.+ L) S; U; L# D& o
- hatchObj.AppendInnerLoop (innerLoop)
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- ' Evaluate and display the hatch- `; `" b1 l4 P4 U( N
- hatchObj.Evaluate
+ n& C; |# s, \ - hatchObj.PatternScale = 0.01) ]) i/ }: B5 ?# `4 s
- ThisDrawing.Regen True
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- End Sub3 Y, n/ a2 r1 |2 \
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