|
|
第二个图形出不来,可能是因为你的CAD版本太老了吧?( }6 ~. z0 y% y4 J
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& ^1 d. ^3 Y, {* M( `3 D0 _7 y1 X
N4 N' C# }; q7 q: M1 v- Dim dblVerticesList(26) As Double, objLWPLine(0) As AcadLWPolyline, varRegions As Variant, dblAxisPoint(2) As Double, dblAxisDir(2) As Double" H" s1 e, ]* Z. {) B9 `$ f
- With ThisDrawing
, p. h! ^) A' |$ h - .SendCommand "ucs w "
' U p- Q( r+ A c - dblVerticesList(0) = 30
M( a4 X1 c9 f4 O' k. v+ ~% u - dblVerticesList(3) = 1004 {& J" d( v" h* I+ U, u
- dblVerticesList(6) = 100: dblVerticesList(7) = 25
8 L0 K4 {5 Y# L1 o4 i6 h - dblVerticesList(9) = 95: dblVerticesList(10) = 30
8 L5 Q7 l* R, `* n* j. W - dblVerticesList(12) = 65: dblVerticesList(13) = 300 _ }# H9 w! Z8 ~. k( U
- dblVerticesList(15) = 60: dblVerticesList(16) = 35; D6 X7 J. P5 f$ m9 a
- dblVerticesList(18) = 60: dblVerticesList(19) = 955 ?$ M8 y& ?- |. ?- O
- dblVerticesList(21) = 55: dblVerticesList(22) = 100) j- `' J" P. j# [& D9 w
- dblVerticesList(24) = 30: dblVerticesList(25) = 1003 o% b2 o# U* z. N
- Set objLWPLine(0) = .ModelSpace.AddLightWeightPolyline(dblVerticesList)
1 P, b, c$ ~5 n! g& T. ]' t- Z& B - objLWPLine(0).Closed = True
, T4 G( T6 [7 ?# {4 F! }/ H& E% W3 o - objLWPLine(0).SetBulge 2, Tan(.Utility.AngleToReal(90 / 4, acDegrees))
9 C6 y3 b% d6 f* s1 c - objLWPLine(0).SetBulge 4, Tan(.Utility.AngleToReal(-90 / 4, acDegrees))
: r6 V! A# z3 i5 ]# r, |; @# p h, { - objLWPLine(0).SetBulge 6, Tan(.Utility.AngleToReal(90 / 4, acDegrees))4 T% m* l5 q( E
- varRegions = .ModelSpace.AddRegion(objLWPLine)
( ~; {7 u, c4 B& o! w3 h: S( F7 q - objLWPLine(0).Delete
' L3 R: X! C+ G" I5 I% _, w7 ? - dblAxisDir(1) = 17 Z5 [9 y) s; Y% }/ R2 c; L+ m
- .ModelSpace.AddRevolvedSolid varRegions(0), dblAxisPoint, dblAxisDir, .Utility.AngleToReal(180, acDegrees) * 2
. U2 r# J3 i' H& h - varRegions(0).Delete. z H6 c% Q7 @. C
- ZoomAll I6 G+ b& a8 z- I7 s
- End With& Z, t9 C+ {7 q5 T" C0 K
复制代码
3 z2 @7 d0 Q6 j) q! s6 o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+ i. {' |7 z2 {* K O; D3 J
- ) J) y# E+ J" Y& F! S
- Sub A()5 B. }6 v. d& M7 M
- Dim objBox As Acad3DSolid, objSphere As Acad3DSolid, dblCenter(2) As Double& Y0 m" U; E5 a3 s, Y- @3 Q
- With ThisDrawing.ModelSpace! ^ Y R& z2 ?
- Set objBox = .AddBox(dblCenter, 100, 100, 100)* N* x/ M" s' P$ |) d5 u1 ~+ c
- dblCenter(1) = 50. T0 r" f5 H3 @5 h" O( a! z
- Set objSphere = .AddSphere(dblCenter, 45)
( `! n) n/ V- j3 d6 ~ - objBox.Boolean acSubtraction, objSphere
) Z7 i& u7 N; t7 l9 p1 t# W - objBox.color = 152/ L6 ^' t5 m$ D6 ]4 j5 U+ @
- MyDisplay
, z: K, [* |: C( w, m8 c% X- d - End With6 e1 ~/ i, H, V# u' T: o
- End Sub
9 B; t) Z) c8 x3 D: m8 d
5 C& p2 D0 ?) V& q/ Q- Sub B() D" {, ~8 _- Q8 t
- Dim dblVerticesList(17) As Double, objLWPLine(0) As AcadLWPolyline, varRegions As Variant, dblAxisPoint(2) As Double, dblAxisDir(2) As Double, obj3DSolid As Acad3DSolid# H0 I3 ^% F" o @
- With ThisDrawing
7 G. y; u9 q: F* l - .SendCommand "ucs w "6 s$ ?2 T- a! }1 b3 S2 c& M- S$ N
- dblVerticesList(0) = 30( W6 I# g/ r) A4 a9 u1 u0 P
- dblVerticesList(2) = 100
- S( w" B/ m6 H% N - dblVerticesList(4) = 100: dblVerticesList(5) = 25
# Q6 ]( D' e! T2 f* p8 q J2 w - dblVerticesList(6) = 95: dblVerticesList(7) = 30
# ~+ I4 F# p! d) F* E8 q8 c1 z" { - dblVerticesList(8) = 65: dblVerticesList(9) = 30
2 A, U0 a6 H5 v - dblVerticesList(10) = 60: dblVerticesList(11) = 35
' e1 E" z0 F# u7 a# O; t* {" s - dblVerticesList(12) = 60: dblVerticesList(13) = 95
) H: S& m7 { M! o) c7 u - dblVerticesList(14) = 55: dblVerticesList(15) = 1003 O% m9 V& r L$ Y, ^5 n0 _8 y/ p
- dblVerticesList(16) = 30: dblVerticesList(17) = 100
/ x, T6 G, k$ E/ j& g) V( L - Set objLWPLine(0) = .ModelSpace.AddLightWeightPolyline(dblVerticesList)
4 r: `! C8 S; ^ - objLWPLine(0).Closed = True7 |1 b! d9 z, g- P R
- objLWPLine(0).SetBulge 2, Tan(.Utility.AngleToReal(90 / 4, acDegrees))
) a! | S5 `' L: ?6 S/ q& o w - objLWPLine(0).SetBulge 4, Tan(.Utility.AngleToReal(-90 / 4, acDegrees))+ C1 a! p4 z C- f; `. N# U
- objLWPLine(0).SetBulge 6, Tan(.Utility.AngleToReal(90 / 4, acDegrees))
. k% A% v: m2 V9 N- P1 Q$ _. F- V. k - varRegions = .ModelSpace.AddRegion(objLWPLine)* G, Z8 d! E! V' }
- objLWPLine(0).Delete+ e8 X, Z6 \4 A6 s
- dblAxisDir(1) = 16 O, u: j A( v) p
- Set obj3DSolid = .ModelSpace.AddRevolvedSolid(varRegions(0), dblAxisPoint, dblAxisDir, .Utility.AngleToReal(180, acDegrees) * 2)! h' s( q% L" ^
- varRegions(0).Delete
; B; s- @* o% g% E4 M* G - obj3DSolid.color = 135
~5 b( C. f0 g- P b, R - MyDisplay
8 v3 t u- }1 E2 q - End With$ U* j1 Q. f D: q: ]
- End Sub# B+ N1 m) h" i$ a
- ' G6 {; t: R/ c9 d7 n
- Private Sub MyDisplay()4 q4 @( [- |. |( F; H- U/ J
- Dim objUCS As AcadUCS, dblOrigin(2) As Double, dblXAxisPoint(2) As Double, dblYAxisPoint(2) As Double
+ p& J( [( R7 P/ X2 z6 ?" B - dblXAxisPoint(0) = 1: dblXAxisPoint(1) = 0: dblXAxisPoint(2) = -1/ R* _1 |+ D) W9 f a
- dblYAxisPoint(0) = -1: dblYAxisPoint(1) = 2: dblYAxisPoint(2) = -16 h5 }& i3 ]2 K. H7 |8 J+ Y# h
- Set objUCS = ThisDrawing.UserCoordinateSystems.Add(dblOrigin, dblXAxisPoint, dblYAxisPoint, "U")
/ V6 F& V6 u8 r - ThisDrawing.ActiveUCS = objUCS5 V6 ]0 P) ^) @0 U
- ThisDrawing.SendCommand "plan c ucs w shademode g "
* X+ c) m) I" G6 b - ZoomAll* `" |. \3 W! X- ^$ k( D' ~
- End Sub
0 P e* U% x1 r4 L2 G7 J
复制代码 4 F+ M) R! }. }4 G4 w
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.7 a' J; d8 t2 l! S6 a2 V
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4 w$ }- W8 Q( H( q( u
- + N7 a! _, ^2 l! |* G. T0 B p
- ThisDrawing.SendCommand "plan c ucs w -shademode g "
& z/ m _* f3 a. @
复制代码 3 X: q) s2 C0 ]3 @: d1 F4 [! `1 c+ B4 q
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.+ |9 C" Y' Z6 i; K: _8 c
4 y5 q# E, w/ E2 I
[ 本帖最后由 woaishuijia 于 2010-2-2 14:31 编辑 ] |
|