vba旋转生成实体

brianxian · 发表于 2010-7-23 23:04:00

求VBA旋转生成实体语句，如一个平面的圆绕一个轴旋转后生成圆环

jsidu4bgpub.jpg

，就是这个图标的语句。谢了！

wuyunpeng888 · 发表于 2010-7-28 22:54:00

Sub Example_AddRevolvedSolid()
' 该示例通过面域沿一个轴旋转以创建实体。
' 面域是由一个弧和一根直线创建的。
Dim curves(0 To 1) As AcadEntity
' 定义圆弧
Dim centerPoint(0 To 2) As Double
Dim radius As Double
Dim startAngle As Double
Dim endAngle As Double
centerPoint(0) = 5#: centerPoint(1) = 3#: centerPoint(2) = 0#
radius = 2#
startAngle = 0
endAngle = 3.141592
Set curves(0) = ThisDrawing.ModelSpace.AddArc(centerPoint, radius, startAngle, endAngle)

' 定义直线
Set curves(1) = ThisDrawing.ModelSpace.AddLine(curves(0).startPoint, curves(0).endPoint)

' 创建面域
Dim regionObj As Variant
regionObj = ThisDrawing.ModelSpace.AddRegion(curves)
ZoomAll
MsgBox "旋转该面域以创建实体。", , "AddRevolvedSolid 示例"

' 定义旋转轴
Dim axisPt(0 To 2) As Double
Dim axisDir(0 To 2) As Double
Dim angle As Double
axisPt(0) = 7: axisPt(1) = 2.5: axisPt(2) = 0
axisDir(0) = 11: axisDir(1) = 1: axisDir(2) = 3
angle = 6.28

' 创建实体
Dim solidObj As Acad3DSolid
Set solidObj = ThisDrawing.ModelSpace.AddRevolvedSolid(regionObj(0), axisPt, axisDir, angle)
ZoomAll

   ' 更改视口的查看方向以更好地看清实体
Dim NewDirection(0 To 2) As Double
NewDirection(0) = -1: NewDirection(1) = -1: NewDirection(2) = 1
ThisDrawing.ActiveViewport.direction = NewDirection
ThisDrawing.ActiveViewport = ThisDrawing.ActiveViewport
ZoomAll
MsgBox "实体已创建完成", , "AddRevolvedSolid 示例"
End Sub

brianxian · 发表于 2010-7-30 12:59:00

谢了，就是这个东西，我的开发要完成了

brianxian · 发表于 2010-7-30 13:26:00

Sub Example_AddRevolvedSolid()
      Dim cc As AcadCircle
      Dim ptc(0 To 2) As Double
      Dim rc As Double
      ptc(0) = 0: ptc(1) = 0: ptc(2) = 0
      re = 5
      Set cc = ThisDrawing.ModelSpace.AddCircle(ptc, re)
' 创建面域
Dim regionObj As Variant
regionObj = ThisDrawing.ModelSpace.AddRegion(cc)

' 定义旋转轴
Dim axisPt(0 To 2) As Double
Dim axisDir(0 To 2) As Double
Dim angle As Double
axisPt(0) = 10: axisPt(1) = -5: axisPt(2) = 0
axisDir(0) = 10: axisDir(1) = 5: axisDir(2) = 0
angle = 6.28

' 创建实体
Dim solidObj As Acad3DSolid
Set solidObj = ThisDrawing.ModelSpace.AddRevolvedSolid(regionObj(0), axisPt, axisDir, angle)
ZoomAll
End Sub
这又是这么回事？
按照你给的代码修改的

5nozslzygom.jpg