选择外圆DWGeditor帮助

Option Explicit
Sub DelOutSide()
    Dim oSSet As AcadSelectionSet
    Dim delSet As AcadSelectionSet
    Dim oEnt As AcadEntity
    Dim oCircle As AcadCircle
    Dim oPoint As AcadPoint
    Dim cp As Variant
    Dim varp As Variant
    Dim rad As Double
    Dim ftype(0) As Integer
    Dim fdata(0) As Variant
    Dim dxfCode, dxfValue
    Dim name As String
    Dim count As Integer
    On Error GoTo Err_Control
    With ThisDrawing.SelectionSets
        While .count > 0
            .Item(0).Delete
        Wend
        Set oSSet = .Add("$Points$")
        Set delSet = .Add("$Delete$")
    End With
    ftype(0) = 0: fdata(0) = "POINT"
    dxfCode = ftype: dxfValue = fdata
    ThisDrawing.Utility.GetEntity oEnt, varp, vbLf & "Select circle:"
    If Not TypeOf oEnt Is AcadCircle Then
        Exit Sub
    End If
    Set oCircle = oEnt
    cp = oCircle.Center
    rad = oCircle.Radius
    oSSet.SelectOnScreen dxfCode, dxfValue
    For Each oEnt In oSSet
        Set oPoint = oEnt
        varp = oPoint.Coordinates
        If Distance(varp, cp) > rad Then
            Dim varobj(0) As AcadEntity
            Set varobj(0) = oEnt
            delSet.AddItems (varobj)
        End If
    Next
    MsgBox delSet.count
    delSet.Erase
Exit_Here:
    Exit Sub
Err_Control:
    If Err.Number  0 Then
        MsgBox Err.Description
        Err.Clear
    End If
    Resume Exit_Here
End Sub
'' by Frank Oquendo
Public Function Distance(fPoint As Variant, sPoint As Variant) As Double
    Dim x1 As Double, x2 As Double
    Dim y1 As Double, y2 As Double
    Dim z1 As Double, z2 As Double
    Dim cDist As Double
    x1 = fPoint(0): y1 = fPoint(1): z1 = fPoint(2)
    x2 = sPoint(0): y2 = sPoint(1): z2 = sPoint(2)
    cDist = Sqr(((x2 - x1) ^ 2) + ((y2 - y1) ^ 2) + ((z2 - z1) ^ 2))
    Distance = cDist
End Function