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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?
3 z. v Q0 X( J% i0 I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- w# q* l$ K) i* i& w' l" N
& h7 F# F5 c5 _1 s3 K' m# Q4 I- v- Dim dblVerticesList(26) As Double, objLWPLine(0) As AcadLWPolyline, varRegions As Variant, dblAxisPoint(2) As Double, dblAxisDir(2) As Double" U5 a. Y9 |' o# {7 Y: |8 _! X
- With ThisDrawing4 P# j% O5 v! L* g$ e
- .SendCommand "ucs w "
( q' I# ]& `' L9 K; Y- N - dblVerticesList(0) = 30$ t$ l/ t: ^2 c3 _0 ]3 @5 a
- dblVerticesList(3) = 100
) h1 o$ u2 g1 O. t - dblVerticesList(6) = 100: dblVerticesList(7) = 25
; e8 } D9 j/ _) k - dblVerticesList(9) = 95: dblVerticesList(10) = 30
# A) c1 M5 @- l6 Q# d0 }! g2 S - dblVerticesList(12) = 65: dblVerticesList(13) = 308 u1 @3 C( @5 c& U9 V7 r
- dblVerticesList(15) = 60: dblVerticesList(16) = 35
* j0 c2 b& U4 r' u - dblVerticesList(18) = 60: dblVerticesList(19) = 95
9 N: b* K1 j B0 J9 W - dblVerticesList(21) = 55: dblVerticesList(22) = 100
2 v4 ]& L; ? m' s, z3 w6 { - dblVerticesList(24) = 30: dblVerticesList(25) = 100
3 A, f7 b4 R- u- N: s+ ^7 n- T - Set objLWPLine(0) = .ModelSpace.AddLightWeightPolyline(dblVerticesList)
/ i& R8 h7 T5 g. U" ^ - objLWPLine(0).Closed = True; e8 a% G- q/ t1 d+ l
- objLWPLine(0).SetBulge 2, Tan(.Utility.AngleToReal(90 / 4, acDegrees)), P& O, @* C/ u3 w/ ^% d
- objLWPLine(0).SetBulge 4, Tan(.Utility.AngleToReal(-90 / 4, acDegrees)); G A1 m' J) @
- objLWPLine(0).SetBulge 6, Tan(.Utility.AngleToReal(90 / 4, acDegrees))6 b6 I( Y6 S+ }" |
- varRegions = .ModelSpace.AddRegion(objLWPLine)
- L& W% [1 w5 c( M3 W - objLWPLine(0).Delete/ M+ k X3 k R) k, T
- dblAxisDir(1) = 12 r' `& p) J8 `
- .ModelSpace.AddRevolvedSolid varRegions(0), dblAxisPoint, dblAxisDir, .Utility.AngleToReal(180, acDegrees) * 2
7 B4 {- I/ C) y, L6 J4 k - varRegions(0).Delete
5 M8 w" I/ F6 w0 Q - ZoomAll, V8 `5 s8 [4 T6 J% W* O
- End With+ {( `5 k* i; P' p6 ?- E& T
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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6 M. v% x* G: A( A+ W: }: ]
; _! d* B/ `* }. h$ E3 z7 X- Sub A()" X4 p1 I8 O) }) ~0 t, E
- Dim objBox As Acad3DSolid, objSphere As Acad3DSolid, dblCenter(2) As Double
! S5 N0 k: q! E/ W' j+ [# | - With ThisDrawing.ModelSpace0 J# }2 m: o) a" `$ W
- Set objBox = .AddBox(dblCenter, 100, 100, 100)* j/ h' v+ C) _8 K- L7 `' L$ Y
- dblCenter(1) = 50
, H- _* w& g% c; Y4 k6 }- ?% u% T - Set objSphere = .AddSphere(dblCenter, 45)# I0 b- p2 f( b( L2 K
- objBox.Boolean acSubtraction, objSphere) O" Y, ] I: o
- objBox.color = 1520 T; [; {' M5 r7 h) I& E
- MyDisplay3 [5 |! {5 e2 D) W
- End With
9 Z# ` x' d! G. e3 W1 ^) H' G - End Sub, S6 D: @* [1 u. d' B2 @7 C
2 |. b0 ~4 N( ]7 r" u, k- Sub B()" Z: {2 ~, T; V: s
- Dim dblVerticesList(17) As Double, objLWPLine(0) As AcadLWPolyline, varRegions As Variant, dblAxisPoint(2) As Double, dblAxisDir(2) As Double, obj3DSolid As Acad3DSolid
. M4 w8 \5 P% @, b+ U - With ThisDrawing
' x1 f9 q' A3 E. ? _2 A- r; D - .SendCommand "ucs w "; H( u7 e3 f7 y" U; u
- dblVerticesList(0) = 302 {" _! ] b |) o( m
- dblVerticesList(2) = 1000 a+ e$ Q; l) r4 i
- dblVerticesList(4) = 100: dblVerticesList(5) = 254 l, v$ ^- _3 \0 `7 O1 U6 R* ^
- dblVerticesList(6) = 95: dblVerticesList(7) = 309 }5 P, K0 S3 Z/ T
- dblVerticesList(8) = 65: dblVerticesList(9) = 30
a4 G2 A f# g1 X9 ] - dblVerticesList(10) = 60: dblVerticesList(11) = 35
. M2 L5 \# H- i - dblVerticesList(12) = 60: dblVerticesList(13) = 95 ]) t% [ O3 U/ x( `6 d
- dblVerticesList(14) = 55: dblVerticesList(15) = 100
6 }4 D: b: S8 E Y - dblVerticesList(16) = 30: dblVerticesList(17) = 100 E& G9 P) k% S- y3 @3 ?
- Set objLWPLine(0) = .ModelSpace.AddLightWeightPolyline(dblVerticesList)
$ h( ^* T: c) \0 Z% {) V - objLWPLine(0).Closed = True# J. @+ |; D- z3 T6 R8 S o
- objLWPLine(0).SetBulge 2, Tan(.Utility.AngleToReal(90 / 4, acDegrees))
1 k) x. O+ w7 e$ W, P# y+ q - objLWPLine(0).SetBulge 4, Tan(.Utility.AngleToReal(-90 / 4, acDegrees))
/ Q" \. s2 w, X7 i2 Y - objLWPLine(0).SetBulge 6, Tan(.Utility.AngleToReal(90 / 4, acDegrees))9 Y Q% {) j" H& e8 I: P' Z1 z
- varRegions = .ModelSpace.AddRegion(objLWPLine)0 O& d# T& v# h$ ^
- objLWPLine(0).Delete
. t8 M- w5 ~! K - dblAxisDir(1) = 1( r0 k3 |7 e5 r+ \8 h
- Set obj3DSolid = .ModelSpace.AddRevolvedSolid(varRegions(0), dblAxisPoint, dblAxisDir, .Utility.AngleToReal(180, acDegrees) * 2)
/ F. x) z! R# @. `' }2 p - varRegions(0).Delete
( Q2 m9 n4 [. J3 s - obj3DSolid.color = 135
5 q( v! Q; b/ t* l* ~" c) l6 `, h8 V! [$ f - MyDisplay
8 j* L. a% R4 x& I* g7 Y2 B3 ^ - End With5 j1 x0 ?5 @# l/ B/ |
- End Sub
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# \: j/ O' b2 @1 j- Private Sub MyDisplay()
1 c1 Y2 f0 S" g( X - Dim objUCS As AcadUCS, dblOrigin(2) As Double, dblXAxisPoint(2) As Double, dblYAxisPoint(2) As Double
( M: w) e$ Z4 @+ A* D - dblXAxisPoint(0) = 1: dblXAxisPoint(1) = 0: dblXAxisPoint(2) = -1
* Y3 x# F" P5 b2 ?2 n - dblYAxisPoint(0) = -1: dblYAxisPoint(1) = 2: dblYAxisPoint(2) = -1
! j% T6 L: k0 _ - Set objUCS = ThisDrawing.UserCoordinateSystems.Add(dblOrigin, dblXAxisPoint, dblYAxisPoint, "U")
6 n) M3 w! }; u4 i6 ~$ ] - ThisDrawing.ActiveUCS = objUCS0 M! c& K6 E4 m( P, c* a
- ThisDrawing.SendCommand "plan c ucs w shademode g "
! @8 u6 a- t$ l1 i3 G - ZoomAll: n1 _) X$ s$ v, ~5 d6 a
- End Sub
- q4 F9 Z) p$ B* e" u+ ?
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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.
, n3 k7 m2 M. }$ v o* k4 r4 k* G% M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
1 g' \4 Q1 x: s }5 g9 z9 y% S1 g- 9 ?! K: `6 e" V d7 v
- ThisDrawing.SendCommand "plan c ucs w -shademode g "( a2 c2 S, e& A
复制代码
! b y+ Y! }4 `; u9 n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.
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[ 本帖最后由 woaishuijia 于 2010-2-2 14:31 编辑 ] |
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