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 [CommandMethod("CR_Grade")]
 public void CR_Grade()
 {
     // Selecionar ProfileViews existentes no desenho
     TypedValue[] filtro = new TypedValue[] { new TypedValue((int)DxfCode.Start, "AECC_PROFILE_VIEW") };
     SelectionFilter selFiltro = new SelectionFilter(filtro);
     PromptSelectionResult selRes = Manager.DocEditor.GetSelection(selFiltro);

     if (selRes.Status != PromptStatus.OK)
     {
         Manager.DocEditor.WriteMessage("\nNenhum ProfileView selecionado.");
         return;
     }

     F_CR_Grade janela = new F_CR_Grade();
     janela.ShowDialog();

     if (!janela.Fazer)
     {
         return;
     }

     ObjectId idEstilo = Manager.DocCivil.Styles.ProfileStyles[janela.NomeEstiloPerfil];
     ObjectId idLabel = Manager.DocCivil.Styles.LabelSetStyles.ProfileLabelSetStyles[janela.NomeLabelPerfil];

     using (DocumentLock docLock = Manager.DocCad.LockDocument())
     using (Transaction trCad = Manager.DocCad.TransactionManager.StartTransaction())
     {
         LayerTable tabelaLayers = (LayerTable)trCad.GetObject(Manager.DocData.LayerTableId, OpenMode.ForRead);
         ObjectId idLayer = tabelaLayers[janela.NomeLayerPerfil];

         try
         {
             ObjectIdCollection alignments = Manager.DocCivil.GetAlignmentIds();
             foreach (ObjectId alignmentId in alignments)
             {
                 Alignment alignment = trCad.GetObject(alignmentId, OpenMode.ForRead) as Alignment;
                 if (alignment == null) continue;

                 string projectName = $"{janela.PrefixoPerfil}{alignment.Name}";
                 Profile profile = CreateProfile(trCad, alignment, projectName, idLayer, idEstilo, idLabel);
                 AdjustProfileElevations(trCad, profile, alignment);
                 Manager.DocEditor.WriteMessage($"\nPerfil de projeto '{projectName}' criado para o alinhamento '{alignment.Name}'.");
             }
             trCad.Commit();
         }
         catch (System.Exception ex)
         {
             Manager.DocEditor.WriteMessage($"\nErro: {ex.Message}");
         }
     }
 }

 private Profile CreateProfile(Transaction trCad, Alignment alignment, string profileName, ObjectId idLayer, ObjectId idEstilo, ObjectId idLabel)
 {
     ObjectId profileId = Profile.CreateByLayout(profileName, alignment.ObjectId, idLayer, idEstilo, idLabel);
     Profile newProfile = trCad.GetObject(profileId, OpenMode.ForWrite) as Profile;
     return newProfile;
 }

 private void AdjustProfileElevations(Transaction tr, Profile profile, Alignment alignment)
 {
     ObjectIdCollection existingProfiles = alignment.GetProfileIds();
     Profile terrainProfile = null;

     foreach (ObjectId profileId in existingProfiles)
     {
         Profile tempProfile = tr.GetObject(profileId, OpenMode.ForRead) as Profile;
         if (tempProfile != null && tempProfile.StyleName == "Terreno")
         {
             terrainProfile = tempProfile;
             break;
         }
     }

     if (terrainProfile == null)
     {
         throw new System.Exception("Perfil de terreno não encontrado.");
     }

     double startStation = alignment.StartingStation;
     double endStation = alignment.EndingStation;
     double startElevation = terrainProfile.ElevationAt(startStation);
     double endElevation = terrainProfile.ElevationAt(endStation);

     profile.UpgradeOpen();
     ProfilePVICollection pviCollection = profile.PVIs;

     if (pviCollection.Count > 0)
     {
         pviCollection[0].Elevation = startElevation;
         pviCollection[pviCollection.Count - 1].Elevation = endElevation;
     }
     else
     {
         profile.PVIs.AddPVI(startStation, startElevation);
         profile.PVIs.AddPVI(endStation, endElevation);
     }
     profile.DowngradeOpen();
 }