使用 VBA 以外的其它编程语言

Sub Example_ActiveUCS()
    ' This example returns the current saved UCS (or saves a new one dynamically)
    ' and then sets a new UCS.
    ' Finally, it returns the UCS to the previous setting.
    
    Dim newUCS As AcadUCS
    Dim currUCS As AcadUCS
    Dim origin(0 To 2) As Double
    Dim xAxis(0 To 2) As Double
    Dim yAxis(0 To 2) As Double
    
    ' Get the current saved UCS of the active document. If the current UCS is
    ' not saved, then add a new UCS to the UserCoordinateSystems collection
    If ThisDrawing.GetVariable("UCSNAME") = "" Then
        ' Current UCS is not saved so get the data and save it
        With ThisDrawing
            Set currUCS = .UserCoordinateSystems.Add( _
                            .GetVariable("UCSORG"), _
                            .Utility.TranslateCoordinates(.GetVariable("UCSXDIR"), acUCS, acWorld, 0), _
                            .Utility.TranslateCoordinates(.GetVariable("UCSYDIR"), acUCS, acWorld, 0), _
                            "OriginalUCS")
        End With
    Else
        Set currUCS = ThisDrawing.ActiveUCS  'current UCS is saved
    End If
    
    MsgBox "The current UCS is " & currUCS.name, vbInformation, "ActiveUCS 示例"
    
    ' Create a UCS and make it current
    origin(0) = 0: origin(1) = 0: origin(2) = 0
    xAxis(0) = 1: xAxis(1) = 1: xAxis(2) = 0
    yAxis(0) = -1: yAxis(1) = 1: yAxis(2) = 0
    Set newUCS = ThisDrawing.UserCoordinateSystems.Add(origin, xAxis, yAxis, "TestUCS")
    ThisDrawing.ActiveUCS = newUCS
    MsgBox "The new UCS is " & newUCS.name, vbInformation, "ActiveUCS 示例"
    
    ' Reset the UCS to its previous setting
    ThisDrawing.ActiveUCS = currUCS
    MsgBox "The UCS is reset to " & currUCS.name, vbInformation, "ActiveUCS 示例"
End Sub