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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? @) O0 G8 s' q5 R$ n
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 O: {1 }3 @/ g
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- Dim dblVerticesList(26) As Double, objLWPLine(0) As AcadLWPolyline, varRegions As Variant, dblAxisPoint(2) As Double, dblAxisDir(2) As Double- X8 j- L- G4 g7 L$ [' c
- With ThisDrawing
. m+ O; Q* I9 U3 L' j- p" j - .SendCommand "ucs w "
* u& A- m. \% N8 R- y2 i- t - dblVerticesList(0) = 30
2 \5 _" h8 S E- r& v - dblVerticesList(3) = 100
$ t- _ y+ `0 p9 l% o7 P3 @ - dblVerticesList(6) = 100: dblVerticesList(7) = 25
1 S& F z5 s5 D. f - dblVerticesList(9) = 95: dblVerticesList(10) = 30
" \, O9 H8 c1 @5 u* M. _ - dblVerticesList(12) = 65: dblVerticesList(13) = 30# N. B1 U, H+ A0 T! M
- dblVerticesList(15) = 60: dblVerticesList(16) = 35% D" r: J9 R+ j
- dblVerticesList(18) = 60: dblVerticesList(19) = 95
( }+ y( k; b( c5 X; M - dblVerticesList(21) = 55: dblVerticesList(22) = 100
9 p4 R7 ?6 o4 g' I - dblVerticesList(24) = 30: dblVerticesList(25) = 1004 o9 Y4 x& u* m; X1 z8 J) K" |. i
- Set objLWPLine(0) = .ModelSpace.AddLightWeightPolyline(dblVerticesList)
" |/ `* R" I8 D, m9 p - objLWPLine(0).Closed = True4 w& c7 q& G8 k, [8 `
- objLWPLine(0).SetBulge 2, Tan(.Utility.AngleToReal(90 / 4, acDegrees))
* M! _( R/ W {5 e7 ~! e1 ^ - objLWPLine(0).SetBulge 4, Tan(.Utility.AngleToReal(-90 / 4, acDegrees))$ B: `/ \3 p8 L5 R8 B: \
- objLWPLine(0).SetBulge 6, Tan(.Utility.AngleToReal(90 / 4, acDegrees))
3 c5 s' J/ |2 u* w - varRegions = .ModelSpace.AddRegion(objLWPLine)" m# H( q6 n4 v2 _* I# Z( S1 Z4 f
- objLWPLine(0).Delete) J: Z ~4 Z, ^7 G. ~ p, e" m
- dblAxisDir(1) = 1
$ Z `3 S& R3 H: h* r# N5 u5 @ - .ModelSpace.AddRevolvedSolid varRegions(0), dblAxisPoint, dblAxisDir, .Utility.AngleToReal(180, acDegrees) * 2. Z2 i" ~ q9 C* j! b
- varRegions(0).Delete5 N/ N7 G0 Q. ~; _4 x
- ZoomAll8 u$ u' ~& X4 {. d
- End With6 }! U5 c u6 D- u% `
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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
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- Sub A()
+ Y2 ]; Z; M" Q9 I f# @% T - Dim objBox As Acad3DSolid, objSphere As Acad3DSolid, dblCenter(2) As Double
4 ~" f# z/ h& v - With ThisDrawing.ModelSpace
# s$ @& D$ P+ j - Set objBox = .AddBox(dblCenter, 100, 100, 100)2 V6 `4 J' h S, a7 L
- dblCenter(1) = 50
+ J. x0 H: l. l0 M! S; o - Set objSphere = .AddSphere(dblCenter, 45)
- K8 a: k2 o: V- h# A - objBox.Boolean acSubtraction, objSphere9 @( L" ?2 j& x
- objBox.color = 152
; E# \2 N, s( o8 e8 ]; ` - MyDisplay1 F8 U, O9 U Y& J! i7 U# T' C
- End With! F1 E( Z% i9 f9 |2 N
- End Sub2 R0 l0 A" e2 s0 f. M6 }, r
: _% Z4 O2 P& B5 ?+ n/ z- Sub B()
2 v; }& h N2 U. I3 u5 U, t3 Z - Dim dblVerticesList(17) As Double, objLWPLine(0) As AcadLWPolyline, varRegions As Variant, dblAxisPoint(2) As Double, dblAxisDir(2) As Double, obj3DSolid As Acad3DSolid
; V+ T" e" t6 s2 L+ L - With ThisDrawing
( I" h, ^1 T- y$ [% } - .SendCommand "ucs w "; R5 M1 I8 {# g* i& b8 Y
- dblVerticesList(0) = 30. F6 {" ?! e& r
- dblVerticesList(2) = 100
& p; [; r6 Y, ?% X) j! r - dblVerticesList(4) = 100: dblVerticesList(5) = 25
4 v$ ~3 h, [! z/ U - dblVerticesList(6) = 95: dblVerticesList(7) = 30- x/ [7 b9 m+ A+ G1 t5 d% C4 h; ]
- dblVerticesList(8) = 65: dblVerticesList(9) = 300 V* r \3 G& J& o$ ^
- dblVerticesList(10) = 60: dblVerticesList(11) = 35
; G$ n5 K, x1 J% j - dblVerticesList(12) = 60: dblVerticesList(13) = 954 a2 q" e' k; N; D
- dblVerticesList(14) = 55: dblVerticesList(15) = 100
& ^4 i* z2 L5 p, J - dblVerticesList(16) = 30: dblVerticesList(17) = 100) D% a5 r2 E; r2 U% w3 m& [
- Set objLWPLine(0) = .ModelSpace.AddLightWeightPolyline(dblVerticesList)4 _ c4 C9 w1 l9 Z8 |$ a% w0 p7 q. Y
- objLWPLine(0).Closed = True+ I6 W- }$ p- C7 R+ o5 p
- objLWPLine(0).SetBulge 2, Tan(.Utility.AngleToReal(90 / 4, acDegrees))
; {9 e" G8 j* X; N8 g - objLWPLine(0).SetBulge 4, Tan(.Utility.AngleToReal(-90 / 4, acDegrees))0 B% K5 V/ d2 {- s3 B- {
- objLWPLine(0).SetBulge 6, Tan(.Utility.AngleToReal(90 / 4, acDegrees))/ {$ p$ c9 j* S' C
- varRegions = .ModelSpace.AddRegion(objLWPLine)
7 K1 J' m, n; c- O& a - objLWPLine(0).Delete
! r% P- \; w: g4 x) d g' H1 ~ - dblAxisDir(1) = 1! _5 K4 u% f. S$ {; x
- Set obj3DSolid = .ModelSpace.AddRevolvedSolid(varRegions(0), dblAxisPoint, dblAxisDir, .Utility.AngleToReal(180, acDegrees) * 2)8 S; o. ]7 |4 X0 r. t; N
- varRegions(0).Delete
6 p8 z& N4 d1 h a- d3 P, n - obj3DSolid.color = 135! { X) S0 h1 {7 g3 N
- MyDisplay
' `! H1 Y8 |* [3 W1 X. e - End With% o( F2 A! ^9 t( U3 z" a
- End Sub7 S. o( u2 l7 ?" _, \
- 2 C8 l0 }( q: s) |' c( u
- Private Sub MyDisplay()4 n) H* b3 T( o* v8 H3 k7 |; ~- C
- Dim objUCS As AcadUCS, dblOrigin(2) As Double, dblXAxisPoint(2) As Double, dblYAxisPoint(2) As Double
) V; M9 w8 m7 z8 B |) B6 N - dblXAxisPoint(0) = 1: dblXAxisPoint(1) = 0: dblXAxisPoint(2) = -14 W+ ^, z$ w* m3 ^; H# R% l
- dblYAxisPoint(0) = -1: dblYAxisPoint(1) = 2: dblYAxisPoint(2) = -1; k$ `8 r( J. T1 F$ f
- Set objUCS = ThisDrawing.UserCoordinateSystems.Add(dblOrigin, dblXAxisPoint, dblYAxisPoint, "U")
( _" @) I0 v; G, }$ h2 F - ThisDrawing.ActiveUCS = objUCS
+ ]6 V$ P8 O: y - ThisDrawing.SendCommand "plan c ucs w shademode g "
5 L w/ \" a' J4 t. e5 f. } - ZoomAll. I/ v0 s8 A' L+ g: x* r
- End Sub
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. Y6 L) p" B4 s) o6 G: J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.0 g4 ~/ r! ^. O/ s5 k
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0 f/ J# l/ \# z# f7 B* A
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- ThisDrawing.SendCommand "plan c ucs w -shademode g "
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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.
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2 f5 ~/ X9 @6 s[ 本帖最后由 woaishuijia 于 2010-2-2 14:31 编辑 ] |
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