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第一个图在前一个帖子有人会CAD的VBA编辑吗?中画过了.- K$ I6 R' l& N( Y2 ^
第二个图! u1 p8 o( V" J3 _
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- '声明一个原点三维数组/一个X轴方向三维数组/一个Y轴方向三维数组和一个UCS对象,用于在三维空间转换UCS+ p9 ?% M9 I9 ?/ n# J8 J* c$ t
- Dim dblOrigin(2) As Double, dblXAxisPoint(2) As Double, dblYAxisPoint(2) As Double, objUCS As AcadUCS4 H; a, W8 M `; I
- '声明一个包含六个二维点的坐标数组/一个有一个元素的优化多段线对象数组/一个用于接收面域的变体变量和一个三维实体对象,用于创建拉伸实体
( X9 n+ ^: C0 S( i0 w4 t- n - Dim dblVerticesList(11) As Double, objLWPLine(0) As AcadLWPolyline, varRegions As Variant, obj3DSolid As Acad3DSolid$ R$ R. v, {, M0 Z: S3 W7 i$ a
- '声明一个三维点坐标和一个三维实体对象,用于创建圆柱体与拉伸实体差集
. A& B' A; r. O# D3 ^ - Dim dblCenter(2) As Double, objCylinder As Acad3DSolid. {4 U9 G6 ` A, t
- '声明一个三维点,用于与圆柱体中心点配合,指定圆柱体的旋转轴
0 T* _: a0 ?) v* z6 B - Dim dblPoint(2) As Double
" Y f3 v0 C% ] - With ThisDrawing7 @/ U$ ^* t+ e4 y5 \/ e
- '把UCS设为WCS
1 f, v7 i2 ` S, s - .SendCommand "ucs w "
\0 K4 h( C5 j# l/ I! {4 d - '创建二维优化多段线
$ V) c1 Y5 O! z' |% E - dblVerticesList(0) = -504 ^ [- J) X5 c6 ?* y2 Z
- dblVerticesList(2) = 504 e5 I& X) a/ i- y' R& t. Z" i
- dblVerticesList(4) = 60: dblVerticesList(5) = 10 `$ i1 m {' ~( ?
- dblVerticesList(6) = 60: dblVerticesList(7) = 60
' a2 e8 s2 J1 M. ?$ | - dblVerticesList(8) = -60: dblVerticesList(9) = 60
M, q& M: P) Q( X9 `9 Z( Q - dblVerticesList(10) = -60: dblVerticesList(11) = 10( k8 p, F/ K* b1 d W0 L
- Set objLWPLine(0) = .ModelSpace.AddLightWeightPolyline(dblVerticesList)
0 d% z. A! S U/ K" i" B/ i - '多段线闭合( X* A/ Q' U, |" ]3 |5 q* \7 H
- objLWPLine(0).Closed = True2 a1 f* p$ ? \# M% _/ o
- '把多段线的三个直线段改为圆弧
0 b9 b; ^! A5 }2 ~" O - objLWPLine(0).SetBulge 1, Tan(.Utility.AngleToReal(90 / 4, acDegrees))8 L. \1 o- v! ?, X
- objLWPLine(0).SetBulge 3, Tan(.Utility.AngleToReal(180 / 4, acDegrees)) D4 R5 F2 K' c+ M4 a( f
- objLWPLine(0).SetBulge 5, Tan(.Utility.AngleToReal(90 / 4, acDegrees))
5 K! M2 p- j/ x; H - '用多段线做边界创建面域
9 H" f7 ^2 d5 t$ ]% t - varRegions = .ModelSpace.AddRegion(objLWPLine)" v" I+ a' e" ~
- '删除用过的多段线1 N4 R' l4 k7 U
- objLWPLine(0).Delete8 e1 [% F# h: ^" M
- '用面域创建拉伸实体& ~0 d- s- |/ ]5 Q, |( ^) M
- Set obj3DSolid = .ModelSpace.AddExtrudedSolid(varRegions(0), 300, 0)
6 X9 Q( R/ h' K& I! S! h - '删除用过的面域
! ?! @) u& u8 { - varRegions(0).Delete
. |4 P5 |2 O3 R# o4 o - '创建用于差集的中间大圆柱体) F* Y1 j4 ^0 @: R9 G( b& M# [- a0 Z
- dblCenter(1) = 60: dblCenter(2) = 1509 Q+ s) v$ I" p( m' y2 e
- Set objCylinder = .ModelSpace.AddCylinder(dblCenter, 50, 300)1 }* B4 G7 z3 E+ S/ i
- '差集1 k. T8 H/ {; S: F3 l
- obj3DSolid.Boolean acSubtraction, objCylinder% B# \/ E# |* t9 R1 w0 X* @
- '创建用于差集的第一个小圆柱实体
9 k* H, `" d& {: I, N/ ] - dblCenter(2) = 30, u+ A& _$ n9 f( [3 [) s9 u$ x. W
- Set objCylinder = .ModelSpace.AddCylinder(dblCenter, 10, 120)
2 r% J& }* h5 L$ v- w# b - '由于圆柱体的轴线平行于WCS的Z轴,在差集之前必须加以旋转,使其轴线与WCS的Y轴平行
" \/ Q$ n! ~, T) j e - '用dblCenter做旋转轴的基点,在左侧(相对于WCS的XY平面)指定旋转轴的第二个点! n1 S" C- k# S3 U" {# w% c, g
- dblPoint(0) = -1: dblPoint(1) = 60: dblPoint(2) = 30
( J! [4 C# T6 L Q, R Z - '三维旋转小圆柱体
4 q6 s9 W7 V) {# v - objCylinder.Rotate3D dblCenter, dblPoint, .Utility.AngleToReal(90, acDegrees)
, q/ B% n3 o2 ?+ ~+ u r) x6 L - '差集; W2 _$ i; g, I. |# D4 \8 y
- obj3DSolid.Boolean acSubtraction, objCylinder
. i0 r! j8 g( n - '重新指定中心点和旋转轴的第二个点,创建第二个小圆柱体并旋转/差集
. {! C! O) b$ ?1 f/ v - dblCenter(2) = 270: dblPoint(2) = 2702 G j9 [7 ]! z# M0 \8 H
- Set objCylinder = .ModelSpace.AddCylinder(dblCenter, 10, 120)
0 E. q% x0 |+ R& ~ - objCylinder.Rotate3D dblCenter, dblPoint, .Utility.AngleToReal(90, acDegrees)
5 y# w. L9 G1 L# S* L1 M3 Q6 o - obj3DSolid.Boolean acSubtraction, objCylinder6 O1 o5 e0 q$ M( g1 J; I ^1 B
- '指定实体的颜色- Y0 Z/ `+ o6 J
- obj3DSolid.color = 426 z8 A8 b& v4 O) t. k
- '新建UCS Q& n }# E$ }- k
- dblXAxisPoint(0) = 1: dblXAxisPoint(1) = 0: dblXAxisPoint(2) = -1) Y3 I9 l; L# {5 ]+ Z1 _
- dblYAxisPoint(0) = -1: dblYAxisPoint(1) = 2: dblYAxisPoint(2) = -1
, @( ^, [8 z, M( P - Set objUCS = ThisDrawing.UserCoordinateSystems.Add(dblOrigin, dblXAxisPoint, dblYAxisPoint, "U")! w( l/ z& a% q' s" h# C
- '改变视图方向和着色模式) b* d, `, R1 b3 u- N
- .SendCommand "plan u u" & vbCr & "ucs w shademode g "
1 h8 j! g6 O2 {9 _1 l - End With( {0 W, R; m4 i0 E5 h3 s
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[ 本帖最后由 woaishuijia 于 2010-2-11 22:33 编辑 ] |
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