|
第二个图形出不来,可能是因为你的CAD版本太老了吧?
5 f7 \5 [# H7 ]) U+ \1 K5 n1 a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
- @9 U' N3 |: K* L5 {
. D, k" _1 d, B, J) m$ O7 b9 K1 R- Dim dblVerticesList(26) As Double, objLWPLine(0) As AcadLWPolyline, varRegions As Variant, dblAxisPoint(2) As Double, dblAxisDir(2) As Double
% G9 N ]7 Z5 ^ - With ThisDrawing- R: M( z- O/ a6 ^
- .SendCommand "ucs w "8 R7 Y$ P) l5 Y7 p: F
- dblVerticesList(0) = 30
/ b! n* Q8 _! ~( d0 K1 a - dblVerticesList(3) = 100- u7 I- r) V* G: r3 I7 V' g
- dblVerticesList(6) = 100: dblVerticesList(7) = 25( Q% a: S2 Z- R
- dblVerticesList(9) = 95: dblVerticesList(10) = 30. s% a- e- e& K* d0 ?
- dblVerticesList(12) = 65: dblVerticesList(13) = 30
- S0 S- f6 h3 s6 t8 K' [, x7 X# ] - dblVerticesList(15) = 60: dblVerticesList(16) = 350 G* x& ?$ E* h: U) w3 c/ f
- dblVerticesList(18) = 60: dblVerticesList(19) = 95" ? s A# S( Q" ?3 J6 V3 _
- dblVerticesList(21) = 55: dblVerticesList(22) = 100
; z' b7 e- K8 B* o0 U! C7 t: e: E3 P - dblVerticesList(24) = 30: dblVerticesList(25) = 1003 u% Y$ x7 |% t, V
- Set objLWPLine(0) = .ModelSpace.AddLightWeightPolyline(dblVerticesList)/ i/ u- p3 Y. v9 u7 b
- objLWPLine(0).Closed = True- R8 d- H+ e5 f0 C2 z
- objLWPLine(0).SetBulge 2, Tan(.Utility.AngleToReal(90 / 4, acDegrees))4 D+ j2 v' {, Z( o2 p
- objLWPLine(0).SetBulge 4, Tan(.Utility.AngleToReal(-90 / 4, acDegrees))
1 H" }5 i8 g7 t$ n - objLWPLine(0).SetBulge 6, Tan(.Utility.AngleToReal(90 / 4, acDegrees))
( I5 B$ w% |8 ?( z - varRegions = .ModelSpace.AddRegion(objLWPLine)
/ L% Z" a& ]! D9 e* L# [ - objLWPLine(0).Delete
' Z. e$ f/ x# k& P - dblAxisDir(1) = 1
$ Y/ E' [' D, D3 G) d0 d' E, `9 \ - .ModelSpace.AddRevolvedSolid varRegions(0), dblAxisPoint, dblAxisDir, .Utility.AngleToReal(180, acDegrees) * 2
& F- n v+ f' Z/ C, U - varRegions(0).Delete" F7 Y, J" F' I
- ZoomAll
4 B1 q* @1 I* { - End With$ _, g4 T% }: A& z3 \
复制代码 # v @& Z0 |( Y# _2 L
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2 F0 m* Q1 _9 l0 t- k' B" r. Q
- ( O. v. k1 T5 v- m6 L% o: ^
- Sub A()- G1 \% W0 q/ S4 y4 P! `
- Dim objBox As Acad3DSolid, objSphere As Acad3DSolid, dblCenter(2) As Double1 r7 `& d/ {" g( t6 N
- With ThisDrawing.ModelSpace, o8 ^# n% {' U& I3 B* t
- Set objBox = .AddBox(dblCenter, 100, 100, 100)
2 C& `; H5 Z! h( L h) ` - dblCenter(1) = 509 o, s; f' s+ f- _8 Y$ I6 }5 }, ~
- Set objSphere = .AddSphere(dblCenter, 45)
7 C9 ~! D! v, q. m, W* _ J; l* P$ t - objBox.Boolean acSubtraction, objSphere
& h( c4 q, q+ { - objBox.color = 152
R! `- r/ [+ e- Y$ P u - MyDisplay' f( ]% m# T9 j- I% y
- End With
: X7 r$ z% j. d6 E& W k- l( V - End Sub
. z# Z" Y- }5 ]: R - ! S9 p6 b4 J# d+ @( Y- q; w
- Sub B()
7 K3 N0 [9 q- t6 | - Dim dblVerticesList(17) As Double, objLWPLine(0) As AcadLWPolyline, varRegions As Variant, dblAxisPoint(2) As Double, dblAxisDir(2) As Double, obj3DSolid As Acad3DSolid
, G1 _6 U$ f: Y - With ThisDrawing: m* D L. d1 x4 P* j
- .SendCommand "ucs w "9 D( S& w) m" n
- dblVerticesList(0) = 30
3 H( k/ z( Q0 t8 {" n! N- P - dblVerticesList(2) = 1009 ^; \4 [# C u
- dblVerticesList(4) = 100: dblVerticesList(5) = 25& M; R! t1 Q. G
- dblVerticesList(6) = 95: dblVerticesList(7) = 30
( @7 K9 M- T9 B - dblVerticesList(8) = 65: dblVerticesList(9) = 308 i9 T- J1 m( L1 ?
- dblVerticesList(10) = 60: dblVerticesList(11) = 35
$ {2 |! |3 J& i& J+ O - dblVerticesList(12) = 60: dblVerticesList(13) = 951 i! }# I, { S, \" U
- dblVerticesList(14) = 55: dblVerticesList(15) = 100
% w8 O- M; \. W& o: b, M6 | - dblVerticesList(16) = 30: dblVerticesList(17) = 100. S$ W/ q$ g/ X, Z1 o( a/ w
- Set objLWPLine(0) = .ModelSpace.AddLightWeightPolyline(dblVerticesList)
3 y! _# D( G2 [) d3 [& o5 F - objLWPLine(0).Closed = True
& P8 W! i( l4 Z' m - objLWPLine(0).SetBulge 2, Tan(.Utility.AngleToReal(90 / 4, acDegrees))
: w, F2 m4 O- R4 N' Q/ U, A - objLWPLine(0).SetBulge 4, Tan(.Utility.AngleToReal(-90 / 4, acDegrees)) n) ~6 S# o- {
- objLWPLine(0).SetBulge 6, Tan(.Utility.AngleToReal(90 / 4, acDegrees))( t! @. o5 d$ O2 e! |( G
- varRegions = .ModelSpace.AddRegion(objLWPLine)
" H+ X$ n/ g+ f2 B - objLWPLine(0).Delete2 b9 F6 a% G* k8 c
- dblAxisDir(1) = 11 S9 t1 k9 [) D4 R2 b
- Set obj3DSolid = .ModelSpace.AddRevolvedSolid(varRegions(0), dblAxisPoint, dblAxisDir, .Utility.AngleToReal(180, acDegrees) * 2)
: ]1 U% w3 W2 g/ F; Q# r. X0 p* K( C2 R - varRegions(0).Delete! Z' G- `, i5 _% g: Y
- obj3DSolid.color = 135$ f( Z1 [2 e3 {/ f2 f' x
- MyDisplay0 l6 M8 ? j1 l {5 q( W
- End With
0 X7 B+ a5 M! E5 q2 c# ^% F - End Sub
- U8 ]) d2 D/ [8 u0 X: P% m" ~
+ `: L, Z: W( Y* C- w- Private Sub MyDisplay(): N; \. N" x( b: }
- Dim objUCS As AcadUCS, dblOrigin(2) As Double, dblXAxisPoint(2) As Double, dblYAxisPoint(2) As Double" N$ C7 O: }% Y" k
- dblXAxisPoint(0) = 1: dblXAxisPoint(1) = 0: dblXAxisPoint(2) = -1
% Q7 d, d9 m6 G% Z y - dblYAxisPoint(0) = -1: dblYAxisPoint(1) = 2: dblYAxisPoint(2) = -13 [# F: f1 Q! d
- Set objUCS = ThisDrawing.UserCoordinateSystems.Add(dblOrigin, dblXAxisPoint, dblYAxisPoint, "U")
% H! O$ _$ A' o7 l* h) B$ G - ThisDrawing.ActiveUCS = objUCS6 t, M$ Q/ o6 ]' P) s% k ?1 h
- ThisDrawing.SendCommand "plan c ucs w shademode g "
7 ]* T4 _, J( @' T1 A5 b+ w - ZoomAll
; Y1 `) ^: C V. Q; s5 D$ |3 K - End Sub% @/ D) p7 Q) U( c g
复制代码
3 r ~" }6 ^1 _6 X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.
; k, J$ Y) H* U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 t, i( N8 C: E: V
7 j$ c0 s4 s3 {+ c- ThisDrawing.SendCommand "plan c ucs w -shademode g "
% P, v- [& W2 \
复制代码
6 C% K3 t/ l" v8 _$ L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.
5 }* R9 W- k7 h) {7 H9 J7 T$ c2 ]+ D3 ^/ B3 G8 M
[ 本帖最后由 woaishuijia 于 2010-2-2 14:31 编辑 ] |
|