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发表于 2005-5-29 10:51:00
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就如下图所示,我删除4条3dpoly线围成区域内的所有块!要怎么办呢?我自己写了点代码,但运行老是出错,帮我看看好吗?mccad
Public Sub DelBlock()
定义选择集setb和setp分别用于选择块和4条3dpolyline线
Dim setb As AcadSelectionSet
Dim setp As AcadSelectionSet
Dim i As Integer
i = ThisDrawing.SelectionSets.Count
While (i)
Set setb = ThisDrawing.SelectionSets.Item(i - 1)
If setb.Name = "BlockR" Or setb.Name = "objlh" Then
setb.Delete
End If
i = i - 1
Wend
Set setb = ThisDrawing.SelectionSets.Add("BlockR")
Set setp = ThisDrawing.SelectionSets.Add("objlh")
Dim gpcode(1) As Integer
Dim datavalue(1) As Variant
gpcode(0) = 0
datavalue(0) = "polyline"
gpcode(1) = 8
datavalue(1) = "Pathh"
setp.Select acSelectionSetAll, , , gpcode, datavalue
查找选择集setp中两条相交polyline,把交点返回个cwp1,并把这两条线删除
Dim obj1 As Acad3DPolyline
Dim obj2 As Acad3DPolyline
Dim cwp1 As Variant
Dim cwp2 As Variant
Dim pnt As Variant
Set obj1 = setp.Item(0)
For i = 1 To setp.Count - 1
Set obj2 = setp.Item(i)
pnt = obj1.IntersectWith(obj2, acExtendNone)
If VarType(pnt) vbEmpty Then
Set cwp1 = pnt
setp.Item(0).Delete
setp.Item(i).Delete
Exit For
End If
Next i
查找剩下的两条相交线,把交点返回给cwp2
Set obj1 = setp.Item(0)
For i = 1 To setp.Count - 1
Set obj2 = setp.Item(i)
pnt = obj1.IntersectWith(obj2, acExtendNone)
If VarType(pnt) vbEmpty Then
Set cwp2 = pnt
setp.Item(0).Delete
setp.Item(i).Delete
Exit For
End If
Next i
setp.erase
选择区域内的块,清空!
gpcode(0) = 2
datavalue(0) = "BlockReference"
setb.Select acSelectionSetCrossing, cwp1, cwp2, gpcode, datavalue
setb.Erase
End Subhttp://[dir=500,350]请输入地址[/dir][dir= ]c[/dir][/QUOTE] |
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