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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()
2 l% G3 b7 u) }3 b2 M - ' This example creates an associative hatch in model space, and then appends an outer loop to the hatch.. `$ d; }- Z' G+ L7 m" J: k( c
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- Dim hatchObj As AcadHatch
0 X- t# w7 J; C1 D - Dim patternName As String; h& e( q" H) Z4 G1 i1 r8 {
- Dim PatternType As Long
1 O% x# ~9 A/ K/ h7 ? - Dim bAssociativity As Boolean
4 k7 v- p8 \9 ]: E7 |4 I - 'Dim innerLoop(0 To 1) As AcadEntity3 w( C0 a$ W l6 N. d: x4 K# `- Y
- Dim innerLoop(0) As AcadEntity- I4 u8 [8 B7 u: h! x+ o6 l" Y
$ {; @7 i; r9 F6 P5 e6 ^- ' Define the hatch
$ E3 m, F; h1 N( w B$ X3 f - patternName = "ANSI31"
9 x7 Z" }% M! j- p5 S1 O - PatternType = 0
# E; ]7 W* t" C - bAssociativity = True! m" ~( Q% b3 \. T1 h( j V. z$ F
% X, o7 }- E' A) V5 T- ' Create the associative Hatch object2 ^: P# W$ _* h( T
- Set hatchObj = ThisDrawing.ModelSpace.AddHatch(PatternType, patternName, bAssociativity)
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- ' Create the outer loop for the hatch.
6 B, ?4 X. C% f j+ p8 }8 x - ' An arc and a line are used to create a closed loop.; L9 A, b. L9 ^" W
0 } I3 L$ N0 a! S3 @: _- Dim outerLoop(0 To 1) As AcadEntity
) O) j# K7 X! i1 G. Q- Y- O - Dim center(0 To 2) As Double
! ~3 a' v1 D2 b9 Y) u: v - Dim radius As Double
1 M4 j: y% [: J# A% {# c - Dim startAngle As Double; s/ N: U1 I& L; V/ ^
- Dim endAngle As Double
* S l7 x8 \% w& Q% M. ~ - center(0) = 50: center(1) = 30: center(2) = 0/ ~3 t, t6 w: j, H6 w
- radius = 30
6 X2 l* [, |- N% @+ U) q- C - startAngle = 0; I& R7 \2 L4 ?( ^, U
- endAngle = 3.141592
D& o2 {# F$ r' F3 i - Set outerLoop(0) = ThisDrawing.ModelSpace.AddArc(center, radius, startAngle, endAngle)! m% N5 S4 Y# t9 s' m
- Set outerLoop(1) = ThisDrawing.ModelSpace.AddLine(outerLoop(0).StartPoint, outerLoop(0).EndPoint)
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! Q( V" C& O, W* C; ~- ' Append the outer loop to the hatch object/ M5 {6 j7 S2 L) r& I
- hatchObj.AppendOuterLoop (outerLoop)
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- center(0) = 35: center(1) = 40: center(2) = 05 G9 \8 q& R- L# X3 B; l+ w6 u# S
- radius = 5/ w$ I, f1 G0 O3 \
- Set innerLoop(0) = ThisDrawing.ModelSpace.AddCircle(center, radius)3 ~# a; Z1 T* d4 N o" b7 r- N/ t
1 D! o" a9 m0 e& R/ {- ' Append a circle as the inner loop for the hatch.
: G i9 P- E5 r& }( i - hatchObj.AppendInnerLoop (innerLoop)
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/ z5 t- E! n i3 }6 q+ q- center(0) = 55: center(1) = 40: center(2) = 0
$ u* ^4 P5 Y- b - radius = 58 | l$ N% W" a0 D, w
- Set innerLoop(0) = ThisDrawing.ModelSpace.AddCircle(center, radius)
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) y7 z8 L- d6 `% @9 X9 M4 g- ' Append a circle as the inner loop for the hatch.
1 z$ F; |) [1 L* M( P - hatchObj.AppendInnerLoop (innerLoop), }6 e4 s9 W7 |+ T0 f8 \
4 Z# l& L) X6 K- ' Evaluate and display the hatch- e$ t& o, c% {* g; v
- hatchObj.Evaluate, [0 p. F( w4 t
- hatchObj.PatternScale = 0.01
" c" D5 d; r2 X3 V+ F - ThisDrawing.Regen True* }7 d0 Q* x0 \' V8 z! s$ q$ k% c: g
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- End Sub9 u8 y3 s$ R; U( |
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