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第二个图形出不来,可能是因为你的CAD版本太老了吧?5 R! P& C7 B/ O `
在早期CAD中,LWPolyline(二维多段线)对象使用三维坐标,而现在常见的版本中该对象已经优化,改为使用二维坐标.7楼代码就是用二维坐标设计的.如果在早期版本中运行该代码,应该把多段线顶点坐标数组改为三维的形式,如下7 q9 _ h% k1 H. ~/ Q& T6 E1 u
* C: {1 q5 j& R+ I% j! S, V- Dim dblVerticesList(26) As Double, objLWPLine(0) As AcadLWPolyline, varRegions As Variant, dblAxisPoint(2) As Double, dblAxisDir(2) As Double
4 K# w+ d( f- V - With ThisDrawing
0 I) i1 U6 x$ |1 Z' P& H( a! j - .SendCommand "ucs w "
; |$ P& h' j" G! ~ - dblVerticesList(0) = 30
: r0 ]! l2 q& V7 j2 w. n4 k - dblVerticesList(3) = 100
9 \. |# U6 i4 A: ^7 e- l - dblVerticesList(6) = 100: dblVerticesList(7) = 25* r& I, B. W* h' N/ X" _- l
- dblVerticesList(9) = 95: dblVerticesList(10) = 30
: `0 e4 r/ W- [0 g( j- u( O$ H - dblVerticesList(12) = 65: dblVerticesList(13) = 30
$ Q( \3 l V0 Y" o4 ^7 R - dblVerticesList(15) = 60: dblVerticesList(16) = 35
# f* ?; p1 x7 c' R' c4 } - dblVerticesList(18) = 60: dblVerticesList(19) = 956 V0 n; j; O( X3 `
- dblVerticesList(21) = 55: dblVerticesList(22) = 100
4 s4 V% C) ?4 }) D$ x: I: a+ S9 I - dblVerticesList(24) = 30: dblVerticesList(25) = 100 C4 v! G! F8 F4 r+ a" j- _1 n4 m
- Set objLWPLine(0) = .ModelSpace.AddLightWeightPolyline(dblVerticesList)
( G( r; H2 b5 }7 u, K - objLWPLine(0).Closed = True) ~1 f2 N( I. g$ k6 p( y
- objLWPLine(0).SetBulge 2, Tan(.Utility.AngleToReal(90 / 4, acDegrees))) |: w3 ~5 {8 q4 O: v' Y
- objLWPLine(0).SetBulge 4, Tan(.Utility.AngleToReal(-90 / 4, acDegrees))( J4 O4 E" q- a- v* i, H9 d4 h
- objLWPLine(0).SetBulge 6, Tan(.Utility.AngleToReal(90 / 4, acDegrees))2 K% L9 A2 ]1 R( f8 [
- varRegions = .ModelSpace.AddRegion(objLWPLine)
1 d4 I+ w1 ? `% e5 Z- v- k L5 i - objLWPLine(0).Delete4 J, ~" W) f6 K' W7 e5 ~
- dblAxisDir(1) = 1* r+ b3 K0 \' L+ q! ]- \
- .ModelSpace.AddRevolvedSolid varRegions(0), dblAxisPoint, dblAxisDir, .Utility.AngleToReal(180, acDegrees) * 25 S2 [ q/ I, k: M" F* {/ r5 q
- varRegions(0).Delete+ @. c& E$ {. A1 i2 e/ f q$ [
- ZoomAll9 n: e( d6 _" q$ G Y" D
- End With
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* w. U# g8 G, E: ]: I- O3 y: }如果要求程序运行的最后得到像1楼附图一样的显示结果,可以给三维实体赋予指定的颜色,并调用图形界面的"着色"命令改变视图的显示模式.还可以改变视图方向,如下0 p0 P! d- {$ C! H% h7 X
) u* a2 K5 O# s+ o/ L/ z- Sub A()0 A+ `/ @4 H7 a, s; o Q
- Dim objBox As Acad3DSolid, objSphere As Acad3DSolid, dblCenter(2) As Double: o4 _: P- s* ? H
- With ThisDrawing.ModelSpace
* j$ U/ L% a Q( q# w7 H - Set objBox = .AddBox(dblCenter, 100, 100, 100)
o( s- r! p' j% l7 m' h - dblCenter(1) = 50
% W6 m3 ~# B2 U6 p - Set objSphere = .AddSphere(dblCenter, 45)
) X2 r! \9 y6 H( S1 X0 _ - objBox.Boolean acSubtraction, objSphere" w) Y1 X2 S6 K# u9 o2 n
- objBox.color = 1528 t. W/ W2 b3 }9 U" @
- MyDisplay
$ {+ I+ W+ T- W - End With c$ S5 w, x& l$ [+ Q( ^; f# m! q8 v
- End Sub+ _* f( b3 C9 L4 b, U
0 f/ L5 ^3 U' U- y; H- Sub B()& T: V- t0 J( i! a
- Dim dblVerticesList(17) As Double, objLWPLine(0) As AcadLWPolyline, varRegions As Variant, dblAxisPoint(2) As Double, dblAxisDir(2) As Double, obj3DSolid As Acad3DSolid0 k* N5 u2 z n* P
- With ThisDrawing; Z( V$ B5 S! J1 R# d! }
- .SendCommand "ucs w "
5 U W! p' C7 X, ^5 b- S2 ]1 z - dblVerticesList(0) = 30. o2 K, `0 a/ [" h6 r- o
- dblVerticesList(2) = 100
0 M# A8 ?* {* ~* N1 z - dblVerticesList(4) = 100: dblVerticesList(5) = 25
8 w5 @2 E: [5 _( o% h6 w3 L - dblVerticesList(6) = 95: dblVerticesList(7) = 303 O6 O9 X: J( S k! A
- dblVerticesList(8) = 65: dblVerticesList(9) = 30
# H+ y) r0 X5 c8 L& w - dblVerticesList(10) = 60: dblVerticesList(11) = 35! G: z; J4 T* E. x9 m
- dblVerticesList(12) = 60: dblVerticesList(13) = 95# n6 |9 J' _/ d+ k5 ]1 w9 I2 b- f# |
- dblVerticesList(14) = 55: dblVerticesList(15) = 100# w1 [6 u7 S% w$ l# G2 L/ f
- dblVerticesList(16) = 30: dblVerticesList(17) = 1001 e# F5 y& z: O& [4 V4 g
- Set objLWPLine(0) = .ModelSpace.AddLightWeightPolyline(dblVerticesList)% j) [; W; m! `7 A" g' l
- objLWPLine(0).Closed = True
- D! x# t+ K! Y: h6 d - objLWPLine(0).SetBulge 2, Tan(.Utility.AngleToReal(90 / 4, acDegrees))
" U( M) r( {6 V4 k4 R' o - objLWPLine(0).SetBulge 4, Tan(.Utility.AngleToReal(-90 / 4, acDegrees))9 [: _4 ^: ?' i" M7 U9 H' r7 G
- objLWPLine(0).SetBulge 6, Tan(.Utility.AngleToReal(90 / 4, acDegrees))1 X% @* m1 ?' s$ l2 ]* S
- varRegions = .ModelSpace.AddRegion(objLWPLine)4 M/ v; _) ^3 a, F
- objLWPLine(0).Delete# T- p0 Z' ]5 L6 T
- dblAxisDir(1) = 1+ f: i3 ~$ R' g$ S
- Set obj3DSolid = .ModelSpace.AddRevolvedSolid(varRegions(0), dblAxisPoint, dblAxisDir, .Utility.AngleToReal(180, acDegrees) * 2)
& f' j3 Y7 Y" S. t$ O( \0 `& B9 k - varRegions(0).Delete( C2 I& [* B- E- L4 [( X/ N
- obj3DSolid.color = 1354 l, \3 I1 i5 x! R
- MyDisplay3 e; y- O" ^5 T% t% v2 T3 i$ p
- End With
! d! X/ F$ Z1 a- O, L' Z7 o9 _* ? - End Sub n. u' E2 u1 W* y7 }6 H4 m7 [
- ) n6 n2 q+ q" Q3 o4 ~
- Private Sub MyDisplay()
; i9 e Y, _( J4 ]9 q( ` - Dim objUCS As AcadUCS, dblOrigin(2) As Double, dblXAxisPoint(2) As Double, dblYAxisPoint(2) As Double
% m- T+ P7 a" V$ C9 q6 Z - dblXAxisPoint(0) = 1: dblXAxisPoint(1) = 0: dblXAxisPoint(2) = -1
) ?) ]1 ^# N; P- X; D0 h) G* ^ - dblYAxisPoint(0) = -1: dblYAxisPoint(1) = 2: dblYAxisPoint(2) = -1
4 r8 z& A q9 t/ C" p* P. d0 I - Set objUCS = ThisDrawing.UserCoordinateSystems.Add(dblOrigin, dblXAxisPoint, dblYAxisPoint, "U")
/ Z4 t% {) L; s6 L& x. b( s - ThisDrawing.ActiveUCS = objUCS
7 e0 U7 F/ Z4 \7 Y - ThisDrawing.SendCommand "plan c ucs w shademode g "
/ \5 N% v4 y, x' I6 z# l# \3 w - ZoomAll5 @4 l7 f4 [; _ L2 R9 k2 D) y% D# Z
- End Sub- B% V0 t( p4 g# W
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上面代码中宏"A"和"B"分别是画1楼两个图形的代码."MyDisplay"是供两个宏运行到最后调用的子程序,用于修改视图方向和修改视图为"体着色"模式.! X' a/ `- T7 q
由于CAD2007以上版本中,"shademode"命令已被改为调用"视觉样式"命令,所以,如果在2007以上版本中运行本代码,应把ThisDrawing.SendCommand "plan c ucs w shademode g "一行,改为5 j4 r9 ^5 p# E
5 ?+ @% D* _0 d+ [8 O+ D6 W- ThisDrawing.SendCommand "plan c ucs w -shademode g "
, o8 w: ?1 h. [- o1 E {6 _) O
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请注意,新的代码中,第二个图形中的多段线仍然使用的是二维坐标,如果在早期版本中使用,应按前面所说的方法修改.( {. Z/ ]+ I5 v* s) ?
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[ 本帖最后由 woaishuijia 于 2010-2-2 14:31 编辑 ] |
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