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发表于 2009-2-7 20:42:46
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来自: 中国
第二个图 y# ?/ I4 K( L5 [; ~' G. ~
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- Dim PL(0) As AcadLWPolyline, Ps(11) As Double, C(0) As AcadCircle, P(2) As Double
+ {/ u% X. q$ F7 K$ C! k - Dim R1 As Variant, R2 As AcadRegion* [5 D, k6 D7 F0 h
- Dim S1 As Acad3DSolid, S2 As Acad3DSolid
' L$ \: {/ y8 Y; Q' k9 @ - Dim UCS As AcadUCS, Xp(2) As Double, Yp(2) As Double3 j4 d+ _/ ~$ g8 k9 ~
- With ThisDrawing
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7 ?/ \4 t% K, H. o/ \2 V' A2 W - '转换到世界坐标系WCS) i. x& N6 j4 r1 g- M" M* a# Q
- SendCommand "ucs w "
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5 ]7 D! r |% Q- u/ t/ Q - '定义优化多段线的顶点坐标( `( n% C. y7 h) ]6 i2 [& I
- Ps(0) = -7: Ps(1) = -12 g$ Q6 C3 D* {" k
- Ps(2) = 7: Ps(3) = -12
7 i* d- R) o1 | X! B; ^ - Ps(4) = 12: Ps(5) = -7
! S) y' V4 S6 ~ - Ps(6) = 12: Ps(7) = 0, V" F& X( t! Z- v$ O9 p" I
- Ps(8) = -12: Ps(9) = 0, P+ C9 B% o+ l$ u+ k' x
- Ps(10) = -12: Ps(11) = -7' W1 T ~8 f9 }5 o& U4 s" Y2 b1 F
-
2 `$ W' m* B6 x7 h% U4 f& U - '创建优化多段线
2 T; ~& p5 y) d - Set PL(0) = .ModelSpace.AddLightWeightPolyline(Ps)
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# e) s" c' v" ?" k* o) b - '多段线闭合5 P c; u& l/ X4 W7 K* b
- PL(0).Closed = True' V, Z+ A/ ]6 _! `
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- '多段线第2、3顶点间部分改为90度圆弧+ X, @" V5 g$ f+ s' h: _, _
- PL(0).SetBulge 1, .Utility.AngleToReal(22.5, acDegrees)& j# Q5 e. G* ]' W3 Y& x: J
-
0 K3 a+ S8 `" n; T' L* C2 `) [. H - '多段线第4、5顶点间部分改为180度圆弧* U i6 J* w' {, c
- PL(0).SetBulge 3, 1* c" g6 b" g, {& P% S$ b
-
0 U p" Y& o4 Z7 J# C - '多段线第6、1顶点间部分改为90度圆弧
! T# F) {, d) w7 s3 H - PL(0).SetBulge 5, .Utility.AngleToReal(22.5, acDegrees)
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- '用多段线做面域
- [$ h0 w0 R6 c( g/ E) e - R1 = .ModelSpace.AddRegion(PL)+ m% `& K% a) z) h8 Z( B
-
( Z) V* @1 R/ } O - '把面域赋值给R2,便于下步使用) c) j. l" v6 T0 {) ` t- N9 ?. x: d8 b
- Set R2 = R1(0)
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; n/ M4 w$ I9 O, m5 E# N8 B. X1 G. C - '以原点为圆心,半径10画圆
, i: g$ w7 | @1 r+ i - Set C(0) = .ModelSpace.AddCircle(P, 10)$ o% V. S. p; q& M9 y) Z' f
-
( K; v8 M. L/ _5 Q. K - '用圆做面域
* E& l7 |* x k N. J# n - R1 = .ModelSpace.AddRegion(C)
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5 B P4 Y+ Z8 Y( y1 ^; F7 V - '多段线做成的面域与圆做成的面域差集; V: \# S. Y6 O2 f j$ ]) j
- R2.Boolean acSubtraction, R1(0)8 q& w. D0 V0 K
-
; J# K s5 g1 P( b4 ~4 r - '把面域拉伸为三维实体S1,高度50$ b5 i, u# f3 W: [
- Set S1 = .ModelSpace.AddExtrudedSolid(R2, 50, 0)8 `# ~6 d4 j& W9 ?. `& K
- - Q1 `& L; } N% _
- '新建UCS,原世界坐标系WCS的XZ平面为新UCS“AAA”的XY平面,原点不变3 t6 F9 v' G+ G3 c! d
- Xp(0) = 1: Xp(1) = 0: Xp(2) = 0 V: ]' q( r: u9 c& x- q
- Yp(0) = 0: Yp(1) = 0: Yp(2) = 1
4 x) `9 N, W9 L6 X2 O$ Z2 _" x( ?. }3 B - Set UCS = .UserCoordinateSystems.Add(P, Xp, Yp, "AAA")- T4 V0 i1 p2 S
-
( {- `/ n6 f- a2 s+ O0 p) V - '把UCS“AAA”置为当前
4 P/ S: Y* U2 {5 n: l - .ActiveUCS = UCS% j7 s, V" T3 l" f# |0 ?4 H- x
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- '以世界坐标系(0,12,10)为圆心,半径2画圆1 A- D- ^' ]; W$ j; @- J7 | M% ]( J
- P(0) = 0: P(1) = 12: P(2) = 10
7 M Z2 J3 X; a! } - Set C(0) = .ModelSpace.AddCircle(P, 2)
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- '把该圆做成面域
$ c* ]- N( g% f# e - R1 = .ModelSpace.AddRegion(C)' E: K- r1 j% l# ~' V
-
6 H' K0 f% j; u - '拉伸该面域为三维实体S2,高度24
" k# y5 E2 C8 W5 m! w, \! Q w! m - Set S2 = .ModelSpace.AddExtrudedSolid(R1(0), 24, 0)
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- x% R" V$ }" {1 A3 [ - 'S1与S2差集,新实体为S1; } P1 ?$ w j1 V2 j4 D
- S1.Boolean acSubtraction, S2
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- '以世界坐标系(0,12,40)为圆心,半径2画圆& L; `* D4 r$ s2 J1 Z
- P(0) = 0: P(1) = 12: P(2) = 40
& t- x1 P+ f/ U: ^" ` - Set C(0) = .ModelSpace.AddCircle(P, 2)$ K# i1 ]2 I, \3 P" J A/ A. a
-
# ]: Y! c0 I* P' l, D - '把该圆做成面域0 d3 F' Z( j/ Q: k6 e6 }5 R
- R1 = .ModelSpace.AddRegion(C)/ a, V5 G% K* L% a; T/ ~4 ?
- 3 d: I% j* Z- @/ y% H; U" c
- '拉伸该面域为三维实体S2,高度24; J# Y: m: U2 E" q% O D! r
- Set S2 = .ModelSpace.AddExtrudedSolid(R1(0), 24, 0)
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- '差集
) Q( B0 }7 E! ~* b* M* H: E/ z+ l - S1.Boolean acSubtraction, S2
3 Q% j6 \0 q2 Z8 M B1 T9 c; l7 h" c - End With
8 S2 u0 Z5 }0 D9 J( e& ]4 B - End Sub
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