一个选择集的增强类，刚写好，大家提提意见
本帖最后由 作者 于 2006-3-16 14:27:42 编辑Private oSel As AcadSelectionSet
Private TlsFt, TlsFd
Private sName As String
Public Sub NullFilter()
'清空过滤器
TlsFt = Null
TlsFd = Null
End Sub
Private Function IsNull() As Boolean
If oSel Is Nothing Then
IsNull = True
ElseIf oSel.Count = 0 Then
IsNull = True
Else
IsNull = False
End If
End Function
Public Sub Init(Optional ByVal Name As String = "TlsSel")
'创建选择集
On Error Resume Next
NullFilter
If Not oSel Is Nothing Then oSel.Delete
sName = Name
ThisDrawing.SelectionSets(sName).Delete
Set oSel = ThisDrawing.SelectionSets.Add(sName)
End Sub
Private Sub Class_Terminate()
'类析构时清除选择集
On Error Resume Next
If Not oSel Is Nothing Then oSel.Delete
End Sub
Public Function ToArray()
'转化选择集为对象数组输出
On Error Resume Next
Dim i
Dim objs() As AcadEntity
Dim nCount As Integer
nCount = oSel.Count - 1
ReDim objs(nCount)
For i = 0 To nCount
Set objs(i) = oSel(i)
Next i
ToArray = objs
End Function
Public Property Get Count() As Integer
'获取选择集实体个数
On Error Resume Next
Count = oSel.Count
End Property
Public Property Get Name() As String
'获取选择集名称
On Error Resume Next
Name = sName
End Property
Public Property Get Item(ByVal Index) As AcadEntity
'获取选择集实体
On Error Resume Next
Set Item = oSel(Index)
End Property
Public Sub AddItems(ByVal objs)
'向选择集加入实体
On Error Resume Next
If IsArray(objs) Then
oSel.AddItems objs
ElseIf IsObject(objs) Then
Dim ents(0) As AcadEntity
Set ents(0) = objs
oSel.AddItems ents
End If
End Sub
Public Sub RemoveItems(ByVal objs)
'在选择集中移除实体
On Error Resume Next
If IsArray(objs) Then
oSel.RemoveItems objs
ElseIf IsObject(objs) Then
Dim ents(0) As AcadEntity
Set ents(0) = objs
oSel.RemoveItems ents
End If
End Sub
Public Sub Clear()
'清空选择集
On Error Resume Next
Select Case sName
Case "PICKFIRST"
GetPickfirstSel
Case "CURRENT"
GetActiveSel
Case Else
Init sName
End Select
oSel.Clear
End Sub
Public Sub Update()
On Error Resume Next
oSel.Update
End Sub
Public Function GetSel() As AcadSelectionSet
'获取选择集
On Error Resume Next
Set GetSel = oSel
End Function
Public Sub GetPickfirstSel()
'获取Pickfirst选择集
On Error Resume Next
NullFilter
If Not oSel Is Nothing Then oSel.Delete
sName = "PICKFIRST"
ThisDrawing.SelectionSets(sName).Delete
Set oSel = ThisDrawing.PickfirstSelectionSet
End Sub
Public Sub GetActiveSel()
'获取Active选择集
On Error Resume Next
NullFilter
If Not oSel Is Nothing Then oSel.Delete
sName = "CURRENT"
ThisDrawing.SelectionSets(sName).Delete
Set oSel = ThisDrawing.ActiveSelectionSet
End Sub
Public Sub SetFilterType(ParamArray FilterType())
'设置过滤器类型
On Error Resume Next
Dim nCount As Integer
nCount = UBound(FilterType)
Dim ft() As Integer
ReDim ft(nCount)
For i = 0 To nCount
ft(i) = FilterType(i)
Next i
TlsFt = ft
End Sub
Public Sub SetFilterData(ParamArray FilterData())
'设置过滤器
On Error Resume Next
Dim nCount As Integer
nCount = UBound(FilterData)
Dim fd()
ReDim fd(nCount)
For i = 0 To nCount
fd(i) = FilterData(i)
Next i
TlsFd = fd
End Sub
Public Sub SetFilter(ParamArray Filter())
'设置过滤器
On Error Resume Next
Dim i
Dim n As Integer
Dim nCount As Integer
nCount = (UBound(Filter) + 1) / 2 - 1
Dim ft() As Integer, fd()
ReDim ft(nCount), fd(nCount)
For i = 0 To nCount
n = i * 2
ft(i) = Filter(n)
fd(i) = Filter(n + 1)
Next i
TlsFt = ft
TlsFd = fd
End Sub
Public Sub AppendFilter(ParamArray Filter())
Dim n As Integer, oCount As Integer, nCount As Integer
oCount = UBound(TlsFt)
nCount = (UBound(Filter) + 1) / 2
n = oCount + nCount
ReDim Preserve TlsFt(n), TlsFd(n)
For i = 0 To nCount - 1
n = oCount + i + 1
TlsFt(n) = Filter(i * 2)
TlsFd(n) = Filter(i * 2 + 1)
Next i
End Sub
Public Sub SelectObjectOnScreen()
On Error Resume Next
If IsArray(TlsFt) Then
oSel.SelectOnScreen TlsFt, TlsFd
Else
oSel.SelectOnScreen
End If
End Sub
Public Sub Selectobject(ByVal Mode As AcSelect, Optional ByVal Point1, Optional ByVal Point2)
On Error Resume Next
If IsArray(TlsFt) Then
If IsMissing(Point1) Then
oSel.Select Mode, , , TlsFt, TlsFd
Else
oSel.Select Mode, Point1, Point2, TlsFt, TlsFd
End If
Else
If IsMissing(Point1) Then
oSel.Select Mode
Else
oSel.Select Mode, Point1, Point2
End If
End If
End Sub
Public Sub SelectObjectAtPoint(ByVal Point)
On Error Resume Next
If IsArray(TlsFt) Then
oSel.SelectAtPoint Point, TlsFt, TlsFd
Else
oSel.SelectAtPoint Point
End If
End Sub
Public Sub SelectObjectByPolygon(ByVal Mode As AcSelect, Optional ByVal Points, Optional ByVal Point2)
On Error Resume Next
If IsArray(TlsFt) Then
oSel.SelectByPolygon Mode, Points, TlsFt, TlsFd
Else
oSel.SelectByPolygon Mode, Points
End If
End Sub
Public Property Let Visible(ByVal Value As Boolean)
On Error Resume Next
If IsNull() Then Exit Property
Dim i As AcadEntity
For Each i In oSel
i.Visible = Value
Next i
End Property
Public Property Let Layer(ByVal Value As String)
On Error Resume Next
If IsNull() Then Exit Property
Dim i As AcadEntity
For Each i In oSel
i.Layer = Value
Next i
End Property
Public Property Let LineType(ByVal Value As String)
On Error Resume Next
If IsNull() Then Exit Property
Dim i As AcadEntity
For Each i In oSel
i.LineType = Value
Next i
End Property
Public Property Let Color(ByVal Value As ACAD_COLOR)
On Error Resume Next
If IsNull() Then Exit Property
Dim i As AcadEntity
For Each i In oSel
i.Color = Value
Next i
End Property
Public Sub Move(Optional ByVal Point1, Optional ByVal Point2)
On Error Resume Next
If IsNull() Then Exit Sub
If IsMissing(Point1) Then Point1 = CreatePoint()
If IsMissing(Point2) Then Point2 = CreatePoint()
Dim i As AcadEntity
For Each i In oSel
i.Move Point1, Point2
Next i
End Sub
Public Function Copy(Optional ByVal Point1, Optional ByVal Point2)
On Error Resume Next
If IsNull() Then Exit Sub
If IsMissing(Point1) Then Point1 = CreatePoint()
If IsMissing(Point2) Then Point2 = CreatePoint()
Dim objs() As AcadEntity
Dim i
ReDim objs(Count - 1)
For i = 0 To Count
Set objs(i) = oSel(i).Copy
objs(i).Move Point1, Point2
Next i
Copy = objs
End Function
Public Sub Rotate(Optional ByVal BasePoint, Optional ByVal RotationAngle As Double = 1#)
On Error Resume Next
If IsNull() Then Exit Sub
If IsMissing(BasePoint) Then BasePoint = CreatePoint()
Dim i As AcadEntity
For Each i In oSel
i.Rotate BasePoint, RotationAngle
Next i
End Sub
Public Sub Rotate3D(Optional ByVal Point1, Optional ByVal Point2, Optional ByVal RotationAngle As Double = 1#)
On Error Resume Next
If IsNull() Then Exit Sub
If IsMissing(Point1) Then Point1 = CreatePoint()
If IsMissing(Point2) Then Point2 = CreatePoint()
Dim i As AcadEntity
For Each i In oSel
i.Rotate3D Point1, Point2, RotationAngle
Next i
End Sub
Public Sub ScaleAll(Optional ByVal BasePoint, Optional ByVal ScaleFactor As Double = 1)
On Error Resume Next
If IsNull() Then Exit Sub
If IsMissing(BasePoint) Then BasePoint = CreatePoint()
Dim i As AcadEntity
For Each i In oSel
i.ScaleEntity BasePoint, ScaleFactor
Next i
End Sub
Public Sub Mirror(Optional ByVal Point1, Optional ByVal Point2)
On Error Resume Next
If IsNull() Then Exit Sub
If IsMissing(Point1) Then Point1 = CreatePoint()
If IsMissing(Point2) Then Point2 = CreatePoint()
Dim i As AcadEntity
For Each i In oSel
i.Mirror Point1, Point2
Next i
End Sub
Public Sub Mirror3D(Optional ByVal Point1, Optional ByVal Point2, Optional ByVal Point3)
On Error Resume Next
If IsNull() Then Exit Sub
If IsMissing(Point1) Then Point1 = CreatePoint()
If IsMissing(Point2) Then Point2 = CreatePoint()
If IsMissing(Point3) Then Point3 = CreatePoint()
Dim i As AcadEntity
For Each i In oSel
i.Mirror3D Point1, Point2, Point3
Next i
End Sub
Public Sub Highlight(Optional ByVal HighlightFlag As Boolean = True)
On Error Resume Next
Dim i As AcadEntity
For Each i In oSel
i.Highlight HighlightFlag
Next i
End Sub
Public Sub Delete()
On Error Resume Next
oSel.Erase
End Sub
Public Sub CopyObjects(Optional ByVal Owner, Optional ByVal IdPairs)
On Error Resume Next
If IsNull() Then Exit Sub
If IsMissing(Owner) Then
If IsMissing(IdPairs) Then
ThisDrawing.CopyObjects ToArray
Else
ThisDrawing.CopyObjects ToArray, , IdPairs
End If
Else
If IsMissing(IdPairs) Then
ThisDrawing.CopyObjects ToArray, Owner
Else
ThisDrawing.CopyObjects ToArray, Owner, IdPairs
End If
End If
End Sub
Public Sub GetBoundingBox(ByRef MinPoint, ByRef MaxPoint)
On Error Resume Next
Dim i
Dim d1, d2, p1, p2
If IsNull() Then Exit Sub
oSel(0).GetBoundingBox d1, d2
For i = 1 To Count - 1
oSel(i).GetBoundingBox p1, p2
If p1(0) < d1(0) Then d1(0) = p1(0)
If p1(1) < d1(1) Then d1(1) = p1(1)
If p2(0) > d2(0) Then d2(0) = p2(0)
If p2(1) > d2(1) Then d2(1) = p2(1)
Next i
MinPoint = d1
MaxPoint = d2
End Sub
Public Function CreatePoint(Optional ByVal X As Double = 0#, Optional ByVal Y As Double = 0#, Optional ByVal Z As Double = 0#)
Dim pnt(2) As Double
pnt(0) = X: pnt(1) = Y: pnt(2) = Z
CreatePoint = pnt
End Function
Public Function ToBlock(Optional ByVal InsertionPoint, Optional ByVal Name As String = "*U") As String
On Error GoTo ErrHandle
If IsMissing(InsertionPoint) Then InsertionPoint = CreatePoint()
If IsNull() Then Exit Function
Dim oBlock As AcadBlock
Set oBlock = ThisDrawing.Blocks.Add(InsertionPoint, Name)
CopyObjects oBlock
ToBlock = oBlock.Name
ErrHandle:
End Function
沙发，谢谢了，能介绍一下吗？ 可否介绍一下，有哪些功能的增强？ 比较一下下面两段代码，功能是一样的
Sub test1()<BR> Dim ss As New TlsSel<BR> ss.Init<BR> ss.SetFilterType 0<BR> ss.SetFilterData "Line"<BR> ss.SelectObjectOnScreen<BR>End Sub
Sub test2()<BR>On Error Resume Next<BR> Dim ss As AcadSelectionSet<BR> ThisDrawing.SelectionSets("TlsSel").Delete<BR> Set ss = ThisDrawing.SelectionSets.Add("TlsSel")<BR> Dim ft(0) As Integer, fd(0)<BR> ft(0) = 0: fd(0) = "Line"<BR> ss.SelectOnScreen ft, fd<BR> ss.Delete<BR>End Sub<BR> 收下了，仔细研究研究。简化了多。 建议增加一些常用属性的修改，如颜色、线型、图层等。以前象移动、复制等功能。这也是我以前想做的。<BR>因为AX的选择集就这一点和LISP的选择集不同，操作起来也不方便。<BR> 本帖最后由 作者 于 2004-11-13 13:05:04 编辑
按照老大的意见已做更改，见一楼代码，大家看看还有什么要加的？ 这是测试代码Sub test1()
Dim ss As New TlsSel
ss.Init "TlsSel1"
ss.SetFilterType 0, 8
ss.SetFilterData "Line", "0"
ss.SelectObjectOnScreen
ss.GetBoundingBox p1, p2
' OutputPoint p1
' OutputPoint p2
ss.Move p1, p2
End Sub 不错，有所增强 不错也