後で再使用するビューには、名前を付けて保存できます。そのビューが必要なくなれば、削除できます。
名前の付いたビューは、図面データベース内の名前の付いたシンボル テーブルの 1 つである、ビュー テーブルに格納されます。名前の付いたビューは Add メソッドを使用して作成され、ビュー テーブルに新しいビューが追加されます。ビュー テーブルに新しい名前の付いたビューを追加すると、既定のモデル空間ビューが作成されます。
ビューを作成するときは名前を付ける必要があります。ビューの名前の長さは、文字、数字、特殊文字のドル記号($)、ハイフン(-)、アンダースコア(_) を含めて 255 文字までです。
名前の付いたビューをビュー テーブルから削除するには、削除する ViewTableRecord オブジェクトの Erase メソッドを使用します。
次の例では、名前の付いたビューを図面に追加して、現在のビューに設定します。
Imports Autodesk.AutoCAD.ApplicationServices
Imports Autodesk.AutoCAD.DatabaseServices
Imports Autodesk.AutoCAD.Runtime
<CommandMethod("CreateNamedView")> _
Public Sub CreateNamedView()
'' Get the current database
Dim acDoc As Document = Application.DocumentManager.MdiActiveDocument
Dim acCurDb As Database = acDoc.Database
'' Start a transaction
Using acTrans As Transaction = acCurDb.TransactionManager.StartTransaction()
'' Open the View table for read
Dim acViewTbl As ViewTable
acViewTbl = acTrans.GetObject(acCurDb.ViewTableId, OpenMode.ForRead)
'' Check to see if the named view 'View1' exists
If (acViewTbl.Has("View1") = False) Then
'' Open the View Table for write
acViewTbl.UpgradeOpen()
'' Create a new View table record and name the view "View1"
Using acViewTblRec As ViewTableRecord = New ViewTableRecord()
acViewTblRec.Name = "View1"
'' Add the new View table record to the View table and the transaction
acViewTbl.Add(acViewTblRec)
acTrans.AddNewlyCreatedDBObject(acViewTblRec, True)
'' Set 'View1' current
acDoc.Editor.SetCurrentView(acViewTblRec)
End Using
'' Commit the changes
acTrans.Commit()
End If
'' Dispose of the transaction
End Using
End Sub
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Runtime;
[CommandMethod("CreateNamedView")]
public static void CreateNamedView()
{
// Get the current database
Document acDoc = Application.DocumentManager.MdiActiveDocument;
Database acCurDb = acDoc.Database;
// Start a transaction
using (Transaction acTrans = acCurDb.TransactionManager.StartTransaction())
{
// Open the View table for read
ViewTable acViewTbl;
acViewTbl = acTrans.GetObject(acCurDb.ViewTableId,
OpenMode.ForRead) as ViewTable;
// Check to see if the named view 'View1' exists
if (acViewTbl.Has("View1") == false)
{
// Open the View table for write
acViewTbl.UpgradeOpen();
// Create a new View table record and name the view 'View1'
using (ViewTableRecord acViewTblRec = new ViewTableRecord())
{
acViewTblRec.Name = "View1";
// Add the new View table record to the View table and the transaction
acViewTbl.Add(acViewTblRec);
acTrans.AddNewlyCreatedDBObject(acViewTblRec, true);
// Set 'View1' current
acDoc.Editor.SetCurrentView(acViewTblRec);
}
// Commit the changes
acTrans.Commit();
}
// Dispose of the transaction
}
}
Sub CreateNamedView()
' Add a named view to the views collection
Dim viewObj As AcadView
Set viewObj = ThisDrawing.Views.Add("View1")
ThisDrawing.ActiveViewport.SetView viewObj
End Sub
次の例では、名前の付いたビューを図面から削除します。
Imports Autodesk.AutoCAD.ApplicationServices
Imports Autodesk.AutoCAD.DatabaseServices
Imports Autodesk.AutoCAD.Runtime
<CommandMethod("EraseNamedView")> _
Public Sub EraseNamedView()
'' Get the current database
Dim acDoc As Document = Application.DocumentManager.MdiActiveDocument
Dim acCurDb As Database = acDoc.Database
'' Start a transaction
Using acTrans As Transaction = acCurDb.TransactionManager.StartTransaction()
'' Open the View table for read
Dim acViewTbl As ViewTable
acViewTbl = acTrans.GetObject(acCurDb.ViewTableId, OpenMode.ForRead)
'' Check to see if the named view 'View1' exists
If (acViewTbl.Has("View1") = True) Then
'' Open the View table for write
acViewTbl.UpgradeOpen()
'' Get the named view
Dim acViewTblRec As ViewTableRecord
acViewTblRec = acTrans.GetObject(acViewTbl("View1"), OpenMode.ForWrite)
'' Remove the named view from the View table
acViewTblRec.Erase()
'' Commit the changes
acTrans.Commit()
End If
'' Dispose of the transaction
End Using
End Sub
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Runtime;
[CommandMethod("EraseNamedView")]
public static void EraseNamedView()
{
// Get the current database
Document acDoc = Application.DocumentManager.MdiActiveDocument;
Database acCurDb = acDoc.Database;
// Start a transaction
using (Transaction acTrans = acCurDb.TransactionManager.StartTransaction())
{
// Open the View table for read
ViewTable acViewTbl;
acViewTbl = acTrans.GetObject(acCurDb.ViewTableId,
OpenMode.ForRead) as ViewTable;
// Check to see if the named view 'View1' exists
if (acViewTbl.Has("View1") == true)
{
// Open the View table for write
acViewTbl.UpgradeOpen();
// Get the named view
ViewTableRecord acViewTblRec;
acViewTblRec = acTrans.GetObject(acViewTbl["View1"],
OpenMode.ForWrite) as ViewTableRecord;
// Remove the named view from the View table
acViewTblRec.Erase();
// Commit the changes
acTrans.Commit();
}
// Dispose of the transaction
}
}
Sub EraseNamedView()
On Error Resume Next
Dim viewObj As AcadView
Set viewObj = ThisDrawing.Views("View1")
If Err = 0 Then
' Delete the view
viewObj.Delete
End If
End Sub