diff --git a/BtlGeomOutline.cpp b/BtlGeomOutline.cpp
index 9ab0aa6..0b21039 100644
--- a/BtlGeomOutline.cpp
+++ b/BtlGeomOutline.cpp
@@ -75,6 +75,16 @@ BtlGeom::AddPartOutline( int nSide, const FCEDEQUE& dqFce, const STRVECTOR& vsUA
    int nId = m_pGDB->AddGeoObj( GDB_ID_NULL, m_nOutsId, Release( pStm)) ;
    if ( nId == GDB_ID_NULL)
       return false ;
+  // copio la curva per inserirla nel DBG
+   PtrOwner<ICurve> pCopy( pCrvCompo->Clone()) ;
+   if ( IsNull( pCopy))
+      return false ;
+   pCopy->SetThickness( -GetSideHeight( nSide)) ;
+   pCopy->SetExtrusion( frRef.VersZ()) ;
+  // eseguo trim con le facce della trave
+   TrimFlatCurveWithBox( pCopy) ;
+  // inserisco la curva nel DB geometrico
+   int nTId = m_pGDB->AddGeoObj( GDB_ID_NULL, m_nOutsId, Release( pCopy)) ;
   // colore
    Color cCol = m_ProcsCol ;
    //cCol.SetAlpha( 80) ;
@@ -88,6 +98,8 @@ BtlGeom::AddPartOutline( int nSide, const FCEDEQUE& dqFce, const STRVECTOR& vsUA
   // elenco degli eventuali attributi utente
    if ( ! SetUserAttributes( nId, vsUAtt))
       return false ;
+  // identificativi di geometrie ausiliarie
+   SetAuxId( nId, {nTId}) ;
   // Creo le regioni sopra e sotto
    PtrOwner<ISurfFlatRegion> pSfr1( CreateSurfFlatRegion()) ;
    if ( IsNull( pSfr1)  ||  ! pSfr1->AddExtLoop( Release( pCrvCompo)))
@@ -159,6 +171,17 @@ BtlGeom::AddPartAperture( int nSide, const FCEDEQUE& dqFce, const STRVECTOR& vsU
    int nId = m_pGDB->AddGeoObj( GDB_ID_NULL, m_nOutsId, Release( pStm)) ;
    if ( nId == GDB_ID_NULL)
       return false ;
+  // copio la curva per inserirla nel DBG
+   PtrOwner<ICurve> pCopy( pCrvCompo->Clone()) ;
+   if ( IsNull( pCopy))
+      return false ;
+   pCopy->Invert() ;
+   pCopy->SetThickness( -GetSideHeight( nSide)) ;
+   pCopy->SetExtrusion( frRef.VersZ()) ;
+  // eseguo trim con le facce della trave
+   TrimFlatCurveWithBox( pCopy) ;
+  // inserisco la curva nel DB geometrico
+   int nTId = m_pGDB->AddGeoObj( GDB_ID_NULL, m_nOutsId, Release( pCopy)) ;
   // colore
    Color cCol = m_ProcsCol ;
    //cCol.SetAlpha( 80) ;
@@ -172,6 +195,8 @@ BtlGeom::AddPartAperture( int nSide, const FCEDEQUE& dqFce, const STRVECTOR& vsU
   // elenco degli eventuali attributi utente
    if ( ! SetUserAttributes( nId, vsUAtt))
       return false ;
+  // identificativi di geometrie ausiliarie
+   SetAuxId( nId, {nTId}) ;
   // Creo le regioni sopra e sotto
    PtrOwner<ISurfFlatRegion> pSfr1( CreateSurfFlatRegion()) ;
    if ( IsNull( pSfr1)  ||  ! pSfr1->AddExtLoop( Release( pCrvCompo)))
diff --git a/EgtExchange.rc b/EgtExchange.rc
index 47a20e8..3a84dd9 100644
Binary files a/EgtExchange.rc and b/EgtExchange.rc differ