diff --git a/EXE_Trimming.cpp b/EXE_Trimming.cpp
new file mode 100644
index 0000000..c7f3cea
--- /dev/null
+++ b/EXE_Trimming.cpp
@@ -0,0 +1,797 @@
+//----------------------------------------------------------------------------
+//  EgalTech 2025-2025
+//----------------------------------------------------------------------------
+// File : EXE_Trimming.cpp       Data : 25.10.25        Versione : 2.7j3
+// Funzioni per le lavorazioni di Trimming.
+//
+// Modifiche : 23.10.25 RE Creazione modulo.
+//
+//
+//----------------------------------------------------------------------------
+
+//--------------------------- Include ----------------------------------------
+#include "stdafx.h"
+#include "EXE.h"
+#include "EXE_Macro.h"
+#include "DllExchange.h"
+#include "GeoTools.h"
+#include "AuxTools.h"
+#include "/EgtDev/Include/EgtNumUtils.h"
+#include "/EgtDev/Include/EXeExecutor.h"
+#include "/EgtDev/Include/EgtPointerOwner.h"
+#include "/EgtDev/Include/EGkSurfLocal.h"
+#include "/EgtDev/Include/EGkCurveComposite.h"
+#include "/EgtDev/Include/EGkTrimming.h"
+#include "/EgtDev/Include/EGkStmFromTriangleSoup.h"
+#include "/EgtDev/Include/EGkDistPointCurve.h"
+#include <unordered_map>
+#include <algorithm>
+
+using namespace std ;
+
+static string s_sKey_Sync_Coord = "KeyOldCoord" ;
+static string s_sKey_Auto_Trim = "AutoTrim" ;
+
+// ---------------------------------------------------------------------------
+bool
+ExeTrimmingAutoSearch( int nParentId, int nSurfLayerId, double dShapeLinTol, double dShapeAngTol,
+                       double dLinTol, double dEdgeLinTol, double dAngTol, double dAngFaceTol,
+                       const STRVECTOR& vsShapes)
+{
+  // Verifica database geometrico
+   IGeomDB* pGeomDB = GetCurrGeomDB() ;
+   VERIFY_GEOMDB( pGeomDB, GDB_ID_NULL)
+
+  // Se non ho geometrie da ricercare, non faccio nulla
+   if ( vsShapes.empty())
+      return true ;
+
+  // Recupero le superfici presenti nel Layer
+   CISURFPVECTOR vSurfs ; vSurfs.reserve( pGeomDB->GetGroupObjs( nSurfLayerId)) ;
+   int nId = pGeomDB->GetFirstInGroup( nSurfLayerId) ;
+   while ( nId != GDB_ID_NULL) {
+     // Recupero l'entità
+      const IGeoObj* pGeoObj = pGeomDB->GetGeoObj( nId) ;
+      if ( pGeoObj != nullptr) {
+        // Recupero il Tipo
+         int nType = pGeoObj->GetType() ;
+         if ( nType == SRF_TRIMESH  ||  nType == SRF_BEZIER) {
+           // Recupero la superficie
+            const ISurf* pSurf = GetSurf( pGeoObj) ;
+            if ( pSurf != nullptr  &&  pSurf->IsValid())
+               vSurfs.emplace_back( pSurf) ;
+         }
+      }
+      nId = pGeomDB->GetNext( nId) ;
+   }
+  // Se non ho superfici non faccio nulla
+   if ( vSurfs.empty())
+      return false ;
+
+  // Recupero Le Superfici Selezionate, Le Curve e Le Bezier rigate
+   ISURFPOMATRIX matSelSurfMatrix ;
+   ICRVCOMPOPOMATRIX matCompoBorders ;
+   ISURFBEZPOVECTOR vSurfBz ;
+   bool bOk = GetTrimmingAutoEntities( vSurfs, dShapeLinTol, dShapeAngTol, dLinTol, dEdgeLinTol, dAngTol, dAngFaceTol, vsShapes,
+                                       matSelSurfMatrix, matCompoBorders, vSurfBz) ;
+
+  // Per sicurezza verifico che tutte le entità siano a dimensione corretta
+   bOk = bOk && ( ssize( matSelSurfMatrix) == ssize( matCompoBorders)) &&
+                ( ssize( matSelSurfMatrix) == ssize( vSurfBz)) ;
+
+  // Per ogni Entità ricavata inserisco le Geometrie nel Layer
+  // NB. Ordine di Inserimento : Surf -> Edges -> bezier
+  //     Una anomalia nella serie blocca il flusso corrente e passa al successivo
+   int nCount = -1 ;
+   for ( int i = 0 ; bOk && i < int( matSelSurfMatrix.size()) ; ++ i) {
+     // Verifico che la Superficie sia Valida
+      bool bOkEntity = true ;
+      for ( int j = 0 ; bOkEntity  &&  j < ssize( matSelSurfMatrix[i]) ; ++ j)
+         bOkEntity = ( ! IsNull( matSelSurfMatrix[i][j]) && matSelSurfMatrix[i][j]->IsValid()) ;
+      if ( ! bOkEntity)
+         continue ; // anomalia serie livello superfici di selezione
+      for ( int j = 0 ; bOk && j < ssize( matSelSurfMatrix[i]) ; ++ j) {
+         int nSurfId = pGeomDB->AddGeoObj( GDB_ID_NULL, nParentId, Release( matSelSurfMatrix[i][j])) ;
+         bOk = ( ( nSurfId != GDB_ID_NULL) &&
+               ( pGeomDB->SetInfo( nSurfId, s_sKey_Auto_Trim, ToString( ++ nCount)))) ;
+      }
+      if ( ! bOk)
+         break ; // anomalia bloccante
+     // Verifico che Le Curve di Edges ( Bezier ) siano Valide
+      for ( int j = 0 ; bOkEntity  &&  j < ssize( matCompoBorders[i]) ; ++ j)
+         bOkEntity = ( ! IsNull( matCompoBorders[i][j]) && matCompoBorders[i][j]->IsValid()) ;
+      if ( ! bOkEntity)
+         continue ; // anomalia serie livello curve di bordo
+      for ( int j = 0 ; bOk && j < ssize( matCompoBorders[i]) ; ++ j) {
+         int nCrvId = pGeomDB->AddGeoObj( GDB_ID_NULL, nParentId, Release( matCompoBorders[i][j])) ;
+         bOk = ( ( nCrvId != GDB_ID_NULL) &&
+                 ( pGeomDB->SetInfo( nCrvId, s_sKey_Auto_Trim, ToString( nCount)))) ;
+      }
+      if ( ! bOk)
+         break ; // anomalia bloccante
+     // Verifico che le Superfici di Bezier rigate siano Valide
+      bOkEntity = ( ! IsNull( vSurfBz[i]) && vSurfBz[i]->IsValid()) ;
+      if ( ! bOkEntity)
+         continue ; // anomalia seria livello Bezier Rigata
+      int nBzId = pGeomDB->AddGeoObj( GDB_ID_NULL, nParentId, Release( vSurfBz[i])) ;
+      bOk = ( ( nBzId != GDB_ID_NULL) &&
+              ( pGeomDB->SetInfo( nBzId, s_sKey_Auto_Trim, ToString( nCount)))) ;
+      if ( ! bOk)
+         break ; // anomali bloccante
+   }
+
+   ExeSetModified() ;
+
+  // Se richiesto, salvo il comando Lua equivalente
+   if ( IsCmdLog()) {
+      string sLua = "EgtTrimmingAutoSearch(" + ToString( nParentId) + "," +
+                                               ToString( nSurfLayerId) + "," +
+                                               ToString( dShapeLinTol) + "," +
+                                               ToString( dShapeAngTol) + "," +
+                                               ToString( dLinTol) + "," +
+                                               ToString( dEdgeLinTol) + "," +
+                                               ToString( dAngTol) + "," +
+                                               ToString( dAngFaceTol) + "," +
+                                               ToString( vsShapes) + ")" +
+                    " -- bOk=" + ToString( bOk) ;
+      LOG_INFO( GetCmdLogger(), sLua.c_str()) ;
+   }
+
+   return bOk ;
+}
+
+// ---------------------------------------------------------------------------
+bool
+ExeTrimmingGetSurfTmFaceAdj( int nSurfId, const INTVECTOR& vTria, const PNTVECTOR& vPts,
+                             double dAngTol, double dSize, double dSizeTol, INTVECTOR& vOtherFaces)
+{
+  // Verifica database geometrico
+   IGeomDB* pGeomDB = GetCurrGeomDB() ;
+   VERIFY_GEOMDB( pGeomDB, GDB_ID_NULL)
+
+  // Recupero la superficie TriMesh
+   const ISurfTriMesh* pStm = GetSurfTriMesh( pGeomDB->GetGeoObj( nSurfId)) ;
+   bool bOk = ( pStm != nullptr  &&  pStm->IsValid()) ;
+
+  // Verifico che le facce appartengano alla superficie
+   bOk = bOk && ( ! vTria.empty()) ;
+
+  // Recupero l'insieme dei triangoli
+   if ( bOk) {
+      INTVECTOR vOtherTria ; vOtherTria.reserve( pStm->GetTriangleCount()) ;
+      bOk = GetTrimmingStmAdjTria( pStm, vTria, vPts, dAngTol, dSize, dSizeTol, vOtherTria) ;
+     // Per ogni triangolo ricavato, recupero la faccia corrispondente
+      set<int> setFaces ;
+      for ( const int& nT : vOtherTria)
+         setFaces.insert( pStm->GetFacetFromTria( nT)) ;
+      vOtherFaces.assign( setFaces.begin(), setFaces.end()) ;
+   }
+
+   ExeSetModified() ;
+  // Se richiesto, salvo il comando Lua equivalente
+   if ( IsCmdLog()) {
+      string sLua = "EgtTrimmingGetSurfTmFromFaceAdj(" + ToString( nSurfId) + "," +
+                                                         ToString( vTria) + "," +
+                                                         ToString( dAngTol) + ")" +
+                    " -- bOk=" + ToString( bOk) + "vOtherFaces=" + ToString( vOtherFaces) ;
+      LOG_INFO( GetCmdLogger(), sLua.c_str()) ;
+   }
+
+   return bOk ;
+}
+
+// ---------------------------------------------------------------------------
+int
+ExeTrimmingGetSurfTmFromStmFaces( int nParentId, int nSurfId, const INTVECTOR& vFaces)
+{
+  // Verifica database geometrico
+   IGeomDB* pGeomDB = GetCurrGeomDB() ;
+   VERIFY_GEOMDB( pGeomDB, GDB_ID_NULL)
+
+  // Recupero il riferimento del gruppo di destinazione
+   Frame3d frDest ;
+   if ( ! pGeomDB->GetGlobFrame( nParentId, frDest))
+      return GDB_ID_NULL ;
+
+  // Recupero la superficie TriMesh
+   const ISurfTriMesh* pStm = GetSurfTriMesh( pGeomDB->GetGeoObj( nSurfId)) ;
+   if ( pStm == nullptr  ||  ! pStm->IsValid())
+      return GDB_ID_NULL ;
+
+  // Verifico che le facce appartengano alla superficie
+   if ( vFaces.empty())
+      return CMD_ID_NULL ;
+   for ( int nF = 0 ; nF < int( vFaces.size()) ; ++ nF) {
+      double dArea = 0. ;
+      if ( ! pStm->GetFacetArea( vFaces[nF], dArea))
+         return GDB_ID_NULL ;
+   }
+
+  // Definisco la superficie
+   StmFromTriangleSoup TriaSoup ;
+   TriaSoup.Start() ;
+   for ( int nF = 0 ; nF < int( vFaces.size()) ; ++ nF) {
+      INTVECTOR vT ;
+      if ( ! pStm->GetAllTriaInFacet( vFaces[nF], vT))
+         return GDB_ID_NULL ;
+      for ( int nT = 0 ; nT < int( vT.size()) ; ++ nT) {
+         Triangle3d Tria ;
+         if ( ! pStm->GetTriangle( vT[nT], Tria)  ||  ! TriaSoup.AddTriangle( Tria))
+            return GDB_ID_NULL ;
+      }
+   }
+   TriaSoup.End() ;
+   PtrOwner<ISurfTriMesh> pStmTria( TriaSoup.GetSurf()) ;
+   if ( IsNull( pStmTria)  || ! pStmTria->IsValid()  ||  pStmTria->GetTriangleCount() == 0)
+      return GDB_ID_NULL ;
+
+  // Aggiungo la superficie al DB
+   int nNewSurfId = pGeomDB->AddGeoObj( GDB_ID_NULL, nParentId, Release( pStmTria)) ;
+
+   ExeSetModified() ;
+  // Se richiesto, salvo il comando Lua equivalente
+   if ( IsCmdLog()) {
+      string sLua = "TrimmingGetSurfTmFromStmFaces(" + ToString( nParentId) + "," +
+                                                       ToString( nSurfId) + "," +
+                                                       ToString( vFaces) + ")" +
+                    " -- nId=" + ToString( nNewSurfId)  ;
+      LOG_INFO( GetCmdLogger(), sLua.c_str()) ;
+   }
+
+   return nNewSurfId ;
+}
+
+// ---------------------------------------------------------------------------
+bool
+ExeTrimmingGetAdjSurfs( const INTVECTOR& vSurfId, const INTVECTOR& vOtherSurfId, double dLinTol,
+                        double dAngTol, double dAngFaceTol, INTVECTOR& vResId)
+{
+  // Verifica database geometrico
+   IGeomDB* pGeomDB = GetCurrGeomDB() ;
+   VERIFY_GEOMDB( pGeomDB, GDB_ID_NULL)
+
+  // Recupero le superfici di Riferimento
+   CISURFPVECTOR vRefSurf ; vRefSurf.reserve( vSurfId.size()) ;
+   bool bOk = true ;
+   for ( int i = 0 ; bOk && i < int( vSurfId.size()) ; ++ i) {
+      const ISurf* pSurf = GetSurf( pGeomDB->GetGeoObj( vSurfId[i])) ;
+      bOk = ( pSurf != nullptr && pSurf->IsValid()) ;
+      vRefSurf.emplace_back( pSurf) ;
+   }
+
+  // Recupero le superfici complessive, escludendo eventualmente quelle di riferimento se presenti
+   CISURFPVECTOR vOtherSurf ; vOtherSurf.reserve( vOtherSurfId.size()) ;
+   INTVECTOR vIds ;
+   for ( int i = 0 ; bOk && i < int( vOtherSurfId.size()) ; ++ i) {
+      if ( find( vSurfId.begin(), vSurfId.end(), vOtherSurfId[i]) == vSurfId.end()) {
+         const ISurf* pSurf = GetSurf( pGeomDB->GetGeoObj( vOtherSurfId[i])) ;
+         bOk = ( pSurf != nullptr && pSurf->IsValid()) ;
+         vOtherSurf.emplace_back( pSurf) ;
+         vIds.push_back( vOtherSurfId[i]) ;
+      }
+   }
+
+  // Recupero le facce adiancenti nella tolleranza richiesta
+   INTVECTOR vMyInds ;
+   bOk = bOk && GetTrimmingAdjSurfs( vRefSurf, vOtherSurf, dLinTol, dAngTol, dAngFaceTol, vMyInds) ;
+   if ( bOk) {
+      for ( const int& myInd : vMyInds)
+         vResId.push_back( vIds[myInd]) ;
+   }
+
+   ExeSetModified() ;
+  // Se richiesto, salvo il comando Lua equivalente
+   if ( IsCmdLog()) {
+      string sLua = "EgtTrimmingGetAdjSurf(" + ToString( vSurfId) + "," +
+                                               ToString( vOtherSurfId) + "," +
+                                               ToString( dAngTol) + ")" +
+                    " -- bOk=" + ToString( bOk) + ",vResId=" + ToString( vResId) ;
+      LOG_INFO( GetCmdLogger(), sLua.c_str()) ;
+   }
+
+   return bOk ;
+}
+
+// ---------------------------------------------------------------------------
+bool
+ExeTrimmingGetBorders( int nParentId, const SELVECTOR& vIds, double dLinTol, double dAngTol,
+                       int& nFirstId, int& nCount)
+{
+  // Verifica database geometrico
+   IGeomDB* pGeomDB = GetCurrGeomDB() ;
+   VERIFY_GEOMDB( pGeomDB, GDB_ID_NULL)
+
+  // Parametri da restituire
+   nFirstId = GDB_ID_NULL ;
+   nCount = 0 ;
+
+  // vIds : vettore di { nId = SurfId, nSubId = nSurfFace }
+  // Controllo che vIds non sia vuoto
+   bool bOk = ( ! vIds.empty()) ;
+  // Recupero il riferimento della prima superficie
+   Frame3d frSurf ;
+   bOk = bOk && pGeomDB->GetGlobFrame( vIds[0].nId, frSurf) ;
+  // Recupero il riferimento dei gruppi di destinazione
+   Frame3d frDest ;
+   bOk = bOk && pGeomDB->GetGlobFrame( nParentId, frDest) ;
+  // Recupero gli Id univoci delle superfici selezionate
+   INTSET setUniqueId ;
+   for ( const SelData& nIds : vIds)
+      setUniqueId.insert( nIds.nId) ;
+  // Recupero le superfici e le porto tutte in locale alla prima
+   unordered_map<int, int> uMapPos ; uMapPos.reserve( setUniqueId.size()) ;
+   SURFLOCALVECTOR vSurfL ; vSurfL.reserve( setUniqueId.size()) ;
+   CISURFPVECTOR vpSurf ; vpSurf.reserve( setUniqueId.size()) ;
+   int nSurf = 0 ;
+   for ( auto nIter = setUniqueId.begin() ; bOk && nIter != setUniqueId.end() ; ++ nIter) {
+      vSurfL.emplace_back( pGeomDB, *nIter, frSurf) ;
+      bOk = ( vSurfL.back().Get() != nullptr) ;
+      vpSurf.emplace_back( vSurfL.back().Get()) ;
+      uMapPos[*nIter] = nSurf ;
+      ++ nSurf ;
+   }
+  // Recupero il vettore di Selezione associato non più agli Id delle superficie ma alle loro posizioni nel vettore
+   vector<SelData> vFaces ; vFaces.reserve( vIds.size()) ;
+   for ( int i = 0 ; bOk && i < int( vIds.size()) ; ++ i)
+      vFaces.emplace_back( uMapPos[vIds[i].nId], vIds[i].nSub) ;
+
+  // Calcolo le curve di Edge grezze ( quindi i tratti lineari)
+   ICRVCOMPOPOVECTOR vRawEdges ;
+   bOk = bOk && GetTrimmingRawEdges( vpSurf, vFaces, dLinTol, dAngTol, vRawEdges) &&
+                ( ! vRawEdges.empty()) ;
+
+  // Calcolo le curve di Edge approssimate mediante curve di Bezier
+   ICRVCOMPOPOVECTOR vBezierEdges ;
+   bOk = bOk && GetTrimmingBezierEdges( vRawEdges, dLinTol, dAngTol, vBezierEdges) ;
+   nCount = int( vBezierEdges.size()) ;
+   if ( bOk) {
+     // Scorro i gli Edges ottenuti
+      for ( int nCrv = 0 ; bOk && nCrv < nCount ; ++ nCrv) {
+         vBezierEdges[nCrv]->ToLoc( frDest) ;
+        // Inserisco la curva nel DB Geometrico
+         int nCurrId = pGeomDB->AddGeoObj( GDB_ID_NULL, nParentId, Release( vBezierEdges[nCrv])) ;
+         bOk = ( nCurrId != GDB_ID_NULL) ;
+         if ( nCrv == 0)
+            nFirstId = nCurrId ;
+      }
+   }
+
+   ExeSetModified() ;
+  // Se richiesto, salvo il comando Lua equivalente
+   if ( IsCmdLog()) {
+      string sLua = "EgtTrimmingGetBorders(" + IdToString( nParentId) + "," +
+                                               ToString( dLinTol) + "," +
+                                               ToString( dAngTol) + ")" ;
+      sLua += " -- bOk=" + ToString( bOk) +
+              " -- FirstId=" + ToString( nFirstId) + " CurveCount=" + ToString( nCount) ;
+      LOG_INFO( GetCmdLogger(), sLua.c_str()) ;
+   }
+
+   return bOk ;
+}
+
+// ---------------------------------------------------------------------------
+bool
+ExeTrimmingGetBordersByNormals( int nParentId, const SELVECTOR& vIds, double dLinTol,
+                                double dAngTol, double dThick, Point3d& ptNear, int& nFirstId, int& nCount)
+{
+  // Verifica database geometrico
+   IGeomDB* pGeomDB = GetCurrGeomDB() ;
+   VERIFY_GEOMDB( pGeomDB, GDB_ID_NULL)
+
+  // Parametri da restituire
+   nFirstId = GDB_ID_NULL ;
+   nCount = 0 ;
+
+  // vIds : vettore di { nId = SurfId, nSubId = nSurfFace }
+  // Controllo che vIds non sia vuoto
+   bool bOk = ( ! vIds.empty()) ;
+  // Recupero il riferimento della prima superficie
+   Frame3d frSurf ;
+   bOk = bOk && pGeomDB->GetGlobFrame( vIds[0].nId, frSurf) ;
+  // Recupero il riferimento dei gruppi di destinazione
+   Frame3d frDest ;
+   bOk = bOk && pGeomDB->GetGlobFrame( nParentId, frDest) ;
+  // Recupero gli Id univoci delle superfici selezionate
+   INTSET setUniqueId ;
+   for ( const SelData& nIds : vIds)
+      setUniqueId.insert( nIds.nId) ;
+  // Recupero le superfici e le porto tutte in locale alla prima
+   unordered_map<int, int> uMapPos ; uMapPos.reserve( setUniqueId.size()) ;
+   SURFLOCALVECTOR vSurfL ; vSurfL.reserve( setUniqueId.size()) ;
+   CISURFPVECTOR vpSurf ; vpSurf.reserve( setUniqueId.size()) ;
+   int nSurf = 0 ;
+   for ( auto nIter = setUniqueId.begin() ; bOk && nIter != setUniqueId.end() ; ++ nIter) {
+      vSurfL.emplace_back( pGeomDB, *nIter, frSurf) ;
+      bOk = ( vSurfL.back().Get() != nullptr) ;
+      vpSurf.emplace_back( vSurfL.back().Get()) ;
+      uMapPos[*nIter] = nSurf ;
+      ++ nSurf ;
+   }
+  // Recupero il vettore di Selezione associato non più agli Id delle superficie ma alle loro posizioni nel vettore
+   vector<SelData> vFaces ; vFaces.reserve( vIds.size()) ;
+   for ( int i = 0 ; bOk && i < int( vIds.size()) ; ++ i)
+      vFaces.emplace_back( uMapPos[vIds[i].nId], vIds[i].nSub) ;
+
+  // Calcolo le curve di Edge approssimate mediante curve di Bezier
+   ICRVCOMPOPOVECTOR vBezierEdges ;
+   bOk = bOk && GetTrimmingFinalBorders( vpSurf, vFaces, dLinTol, dAngTol, dThick, vBezierEdges) ;
+   if ( bOk) {
+     // Se non ho un punto di vicinanza, le inserisco tutte
+      if ( ! ptNear.IsValid()) {
+         nCount = int( vBezierEdges.size()) ;
+        // Scorro i gli Edges ottenuti
+         for ( int nCrv = 0 ; bOk && nCrv < nCount ; ++ nCrv) {
+            vBezierEdges[nCrv]->ToLoc( frDest) ;
+           // Inserisco la curva nel DB Geometrico
+            int nCurrId = pGeomDB->AddGeoObj( GDB_ID_NULL, nParentId, Release( vBezierEdges[nCrv])) ;
+            bOk = ( nCurrId != GDB_ID_NULL) ;
+            if ( nCrv == 0)
+               nFirstId = nCurrId ;
+         }
+      }
+     // Se ho un punto di vicinanza, cerco la coppia di curve più vicina
+      else {
+        // Se solo una coppia di curve, le inserisco e non ho ambiguità
+         if ( int( vBezierEdges.size()) == 2) {
+            nCount = int( vBezierEdges.size()) ;
+           // Scorro gli Edges ottenuti
+            for ( int nCrv = 0 ; bOk && nCrv < nCount ; ++ nCrv) {
+               vBezierEdges[nCrv]->ToLoc( frDest) ;
+              // Inserisco la curva nel DB Geometrico
+               int nCurrId = pGeomDB->AddGeoObj( GDB_ID_NULL, nParentId, Release( vBezierEdges[nCrv])) ;
+               bOk = ( nCurrId != GDB_ID_NULL) ;
+               if ( nCrv == 0)
+                  nFirstId = nCurrId ;
+            }
+         }
+        // altrimenti cerco la coppia più vicia
+         else {
+            double dSqMinDist = INFINITO ;
+            int nInd = 0 ;
+            for ( int i = 0 ; i + 1 < int( vBezierEdges.size()) ; i = i + 2) {
+               double dSqDist = 0., dSqDist1 = 0. ;
+               if ( DistPointCurve( ptNear, *vBezierEdges[i]).GetSqDist( dSqDist)  &&
+                    DistPointCurve( ptNear, *vBezierEdges[i + 1]).GetSqDist( dSqDist1)) {
+                  double dCurrMinSqDist = min( dSqDist, dSqDist1) ;
+                  if ( dCurrMinSqDist < dSqMinDist) {
+                     dSqMinDist = dCurrMinSqDist ;
+                     nInd = i ;
+                  }
+               }
+            }
+            vBezierEdges[nInd]->ToLoc( frDest) ;
+            vBezierEdges[nInd + 1]->ToLoc( frDest) ;
+            int nCurrId = pGeomDB->AddGeoObj( GDB_ID_NULL, nParentId, Release( vBezierEdges[nInd])) ;
+            int nCurrId1 = pGeomDB->AddGeoObj( GDB_ID_NULL, nParentId, Release( vBezierEdges[nInd + 1])) ;
+            bOk = ( nCurrId != GDB_ID_NULL && nCurrId1 != GDB_ID_NULL) ;
+            if ( bOk) {
+               nFirstId = nCurrId1 ;
+               nCount = 2 ;
+            }
+         }
+      }
+   }
+
+   ExeSetModified() ;
+  // Se richiesto, salvo il comando Lua equivalente
+   if ( IsCmdLog()) {
+      string sLua = "EgtTrimmingGetBorders(" + IdToString( nParentId) + "," +
+                                               ToString( dLinTol) + "," +
+                                               ToString( dAngTol) + ")" ;
+      sLua += " -- bOk=" + ToString( bOk) +
+              " -- FirstId=" + ToString( nFirstId) + " CurveCount=" + ToString( nCount) ;
+      LOG_INFO( GetCmdLogger(), sLua.c_str()) ;
+   }
+
+   return bOk ;
+}
+
+// ---------------------------------------------------------------------------
+bool
+ExeTrimmingGetFinalBorders( int nParentId, const INTVECTOR& vCrvBezierId, double dLinTol, double dAngTol,
+                            const PNTVECTOR& vBrkPts, double dThick, double dThickTol,
+                            int& nFirstId, int& nCount)
+{
+  // Verifica database geometrico
+   IGeomDB* pGeomDB = GetCurrGeomDB() ;
+   VERIFY_GEOMDB( pGeomDB, GDB_ID_NULL)
+
+  // Parametri da restituire
+   nFirstId = GDB_ID_NULL ;
+   nCount = 0 ;
+
+  // Recupero il riferimento del gruppo di destinazione
+   Frame3d frDest ;
+   bool bOk = ( pGeomDB->GetGlobFrame( nParentId, frDest)) ;
+
+  // Recupero le curve di Bordo approssimate come Bezier
+   ICRVCOMPOPOVECTOR vCompoBezierEdges ; vCompoBezierEdges.reserve( vCrvBezierId.size()) ;
+   for ( int nCrv = 0 ; bOk && nCrv < int( vCrvBezierId.size()) ; ++ nCrv) {
+      const ICurve* pCrv = GetCurve( pGeomDB->GetGeoObj( vCrvBezierId[nCrv])) ;
+      bOk = ( pCrv != nullptr && pCrv->IsValid()) ;
+      if ( bOk) {
+         PtrOwner<ICurveComposite> pCompoRawEdges( ConvertCurveToComposite( pCrv->Clone())) ;
+         bOk = ( ! IsNull( pCompoRawEdges) && pCompoRawEdges->IsValid() &&
+                 vCompoBezierEdges.emplace_back( Release( pCompoRawEdges))) ;
+      }
+   }
+
+  // Converto i punti in coppie di punti ( se dispari l'ultimo viene ignorato)
+   BIPNTVECTOR vBreakingPts ; vBreakingPts.reserve( int( int( vBrkPts.size()) / 2)) ;
+   for ( int nPt = 0 ; bOk && nPt < int( vBrkPts.size()) - 1 ; nPt += 2)
+      vBreakingPts.emplace_back( make_pair( vBrkPts[nPt], vBrkPts[nPt+1])) ;
+   if ( int( vBrkPts.size()) % 2 != 0)
+      LOG_INFO( GetCmdLogger(), "Warning in EgtExtractSurfFrChunkLoops : Odd number of breaking points") ;
+
+  // Calcolo le curve di Edge
+   bOk = bOk && GetTrimmingFinalBorders( vCompoBezierEdges, dLinTol, dAngTol, vBreakingPts, dThick, dThickTol) ;
+   nCount = int( vCompoBezierEdges.size()) ;
+   if ( bOk) {
+     // Scorro i gli Edges ottenuti
+      for ( int nCrv = 0 ; bOk && nCrv < nCount ; ++ nCrv) {
+         vCompoBezierEdges[nCrv]->ToLoc( frDest) ;
+        // Inserisco la curva nel DB Geometrico
+         int nCurrId = pGeomDB->AddGeoObj( GDB_ID_NULL, nParentId, Release( vCompoBezierEdges[nCrv])) ;
+         bOk = ( nCurrId != GDB_ID_NULL) ;
+         if ( nCrv == 0)
+            nFirstId = nCurrId ;
+      }
+      ExeSetModified() ;
+   }
+
+  // Se richiesto, salvo il comando Lua equivalente
+   if ( IsCmdLog()) {
+      string sLua = "EgtTrimmingGetFinalEdges(" + IdToString( nParentId) + "," +
+                                                  ToString( vCrvBezierId) + "," +
+                                                  ToString( dLinTol) + "," +
+                                                  ToString( dAngTol) + "," ;
+      sLua += "{" ;
+      for ( int nP = 0 ; nP < int( vBrkPts.size()) ; ++ nP) {
+         sLua += "(" + ToString( vBrkPts[nP].x) + ", " + ToString( vBrkPts[nP].y) + ", " + ToString( vBrkPts[nP].z) + ")" +
+                 ( nP != int( vBrkPts.size()) - 1 ? "," : "") ;
+      }
+      sLua += "}" ;
+      sLua += ToString( dThick) + "," + ToString( dThickTol) + ")" ;
+      sLua += " -- bOk=" + ToString( bOk) +
+              " -- FirstId=" + ToString( nFirstId) + " CurveCount=" + ToString( nCount) ;
+      LOG_INFO( GetCmdLogger(), sLua.c_str()) ;
+   }
+
+   return bOk ;
+}
+
+// ---------------------------------------------------------------------------
+int
+ExeTrimmingGetRuledBezier( int nParentId, const INTVECTOR& vIds, int nEdge1Id, int nEdge2Id, double dLinTol,
+                           const INTVECTOR& vnLineId)
+{
+  // Verifica database geometrico
+   IGeomDB* pGeomDB = GetCurrGeomDB() ;
+   VERIFY_GEOMDB( pGeomDB, GDB_ID_NULL)
+
+  // Aggiusto la tolleranza lineare se necessario
+   double dMyLinTol = Clamp( dLinTol, EPS_SMALL, 1e5 * EPS_SMALL) ;
+
+  // Recupero il riferimento dei gruppi di destinazione
+   Frame3d frDest ;
+   bool bOk = pGeomDB->GetGlobFrame( nParentId, frDest) ;
+
+  // Recupero la prima curva
+   const ICurve* pCrvEdge1 = GetCurve( pGeomDB->GetGeoObj( nEdge1Id)) ;
+   bOk = bOk && ( pCrvEdge1 != nullptr && pCrvEdge1->IsValid()) ;
+
+  // Recupero la seconda curva
+   const ICurve* pCrvEdge2 = GetCurve( pGeomDB->GetGeoObj( nEdge2Id)) ;
+   bOk = bOk && ( pCrvEdge2 != nullptr && pCrvEdge2->IsValid()) ;
+
+  // Se ci sono delle superfici di riferimento
+   CISURFPVECTOR vpSurf ; vpSurf.reserve( vIds.size()) ;
+   if ( ! vIds.empty()) {
+      SURFLOCALVECTOR vSurfL ; vSurfL.reserve( vIds.size()) ;
+     // Recupero il riferimento della prima superficie
+      Frame3d frSurf ;
+      bOk = bOk && ( pGeomDB->GetGlobFrame( vIds[0], frSurf)) ;
+     // Porto le altre nel riferimento della prima
+      for ( int nSurf = 0 ; bOk && nSurf < int( vIds.size()) ; ++ nSurf) {
+         vSurfL.emplace_back( pGeomDB, vIds[nSurf], frSurf) ;
+         if ( vSurfL.back().Get() == nullptr) {
+            bOk = false ;
+            break ;
+         }
+         vpSurf.emplace_back( vSurfL.back().Get()) ;
+      }
+   }
+
+  // Recupero i punti di sincronizzazione ( se presenti)
+   BIPNTVECTOR vSyncPoints ; vSyncPoints.reserve( pGeomDB->GetGroupObjs( vnLineId.size())) ;
+   INTVECTOR vIndPriority ; vIndPriority.reserve( vSyncPoints.size()) ;
+   INTVECTOR vIndVisible ; vIndVisible.reserve( vSyncPoints.size()) ;
+   for ( int i = 0 ; bOk && i < int( vnLineId.size()) ; ++ i) {
+     // Recupero la Curva
+      const ICurve* pLine = GetCurve( pGeomDB->GetGeoObj( vnLineId[i])) ;
+      bOk = bOk && ( pLine != nullptr && pLine->IsValid()) ;
+      if ( bOk) {
+         Point3d ptStart ; pLine->GetStartPoint( ptStart) ;
+         Point3d ptEnd ; pLine->GetEndPoint( ptEnd) ;
+         vSyncPoints.emplace_back( make_pair( ptStart, ptEnd)) ;
+        // Verifico se la linea è visibile all'utente
+         int nStatus = GDB_ST_OFF ;
+         if ( pGeomDB->GetStatus( vnLineId[i], nStatus)  &&  nStatus == GDB_ST_ON)
+            vIndVisible.emplace_back( int( vSyncPoints.size() - 1)) ;
+        // Verifico mediante le Info se la curva è stata modificata o aggiunta ( quindi prioritaria)
+         DBLVECTOR vdOldCoor ; vdOldCoor.reserve( 6) ;
+         if ( ! pGeomDB->GetInfo( vnLineId[i], s_sKey_Sync_Coord, vdOldCoor)  ||
+              int( vdOldCoor.size()) != 6  ||
+              ! AreSamePointApprox( ptStart, Point3d( vdOldCoor[0], vdOldCoor[1], vdOldCoor[2]))  ||
+              ! AreSamePointApprox( ptEnd, Point3d( vdOldCoor[3], vdOldCoor[4], vdOldCoor[5])))
+            vIndPriority.emplace_back( int( vSyncPoints.size()) - 1) ;
+      }
+   }
+
+  // Recupero la superficie Bezier rigata
+   PtrOwner<ISurfBezier> pSurfBzRuled ;
+   if ( bOk) {
+      pSurfBzRuled.Set( GetTrimmingRuledBezier( vpSurf, pCrvEdge1, pCrvEdge2, dMyLinTol, vSyncPoints, vIndPriority, vIndVisible)) ;
+      bOk = bOk && ( ! IsNull( pSurfBzRuled) && pSurfBzRuled->IsValid()) ;
+   }
+
+  // Inserisco la curva nel DB Geometrico
+   int nSurfBzId = GDB_ID_NULL ;
+   if ( bOk) {
+      pSurfBzRuled->ToLoc( frDest) ;
+      nSurfBzId = pGeomDB->AddGeoObj( GDB_ID_NULL, nParentId, Release( pSurfBzRuled)) ;
+      bOk = bOk && ( nSurfBzId != GDB_ID_NULL) ;
+   }
+
+   ExeSetModified() ;
+  // Se richiesto, salvo il comando Lua equivalente
+   if ( IsCmdLog()) {
+      string sLua = "EgtTrimmingGetRuledBezier(" + ToString( nParentId) + "," +
+                                                   ToString( vIds) + "," +
+                                                   ToString( nEdge1Id) + "," +
+                                                   ToString( nEdge2Id) + "," +
+                                                   ToString( dLinTol) + ")" +
+                    " -- bOk=" + ToString( bOk) ;
+      LOG_INFO( GetCmdLogger(), sLua.c_str()) ;
+   }
+
+  // Restituisco il risultato
+   return nSurfBzId ;
+}
+
+// ---------------------------------------------------------------------------
+bool
+ExeTrimmingGetSurfBzSyncPoints( int nParentId, int nEdge1Id, int nEdge2Id, double dLinTol,
+                                int& nFirstId, int& nCount)
+{
+  // Verifica database geometrico
+   IGeomDB* pGeomDB = GetCurrGeomDB() ;
+   VERIFY_GEOMDB( pGeomDB, GDB_ID_NULL)
+
+  // Se necessario aggiusto le tolleranze
+   double dMyLinTol = Clamp( dLinTol, EPS_SMALL, 1e5 * EPS_SMALL) ;
+
+  // Recupero il riferimento del gruppo di destinazione
+   Frame3d frDest ;
+   bool bOk = ( pGeomDB->GetGlobFrame( nParentId, frDest)) ;
+
+  // Recupero le due Curve di bordo
+   const ICurve* pCrvEdge1 = GetCurve( pGeomDB->GetGeoObj( nEdge1Id)) ;
+   const ICurve* pCrvEdge2 = GetCurve( pGeomDB->GetGeoObj( nEdge2Id)) ;
+   bOk = bOk && ( pCrvEdge1 != nullptr && pCrvEdge1->IsValid() &&
+                  pCrvEdge2 != nullptr && pCrvEdge2->IsValid()) ;
+
+  // Recupero i punti di sincronizzazione
+   BIPNTVECTOR vSyncPoints ;
+   bOk = bOk && GetTrimmingSurfBzSyncPoints( pCrvEdge1, pCrvEdge2, dMyLinTol, vSyncPoints) &&
+                ( ! vSyncPoints.empty()) ;
+   nCount = int( vSyncPoints.size()) ;
+
+  // Inserisco i tratti di sincronizzazione nel DB Geometrico
+   for ( int nL = 0 ; nL < int( vSyncPoints.size()) ; ++ nL) {
+      PtrOwner<ICurveLine> pLine( CreateCurveLine()) ;
+      if ( ! IsNull( pLine)  &&  pLine->Set( vSyncPoints[nL].first, vSyncPoints[nL].second)) {
+         int nLineId = pGeomDB->AddGeoObj( GDB_ID_NULL, nParentId, Release( pLine)) ;
+         if ( nLineId != GDB_ID_NULL) {
+            if ( nL == 0)
+               nFirstId = nLineId ;
+           // Memorizzo come Info le coordinate dei punti ( per tenere traccia in futuro di modifiche)
+            DBLVECTOR vdCoordInfo = { vSyncPoints[nL].first.x, vSyncPoints[nL].first.y, vSyncPoints[nL].first.z,
+                                      vSyncPoints[nL].second.x, vSyncPoints[nL].second.y, vSyncPoints[nL].second.z} ;
+            pGeomDB->SetInfo( nLineId, s_sKey_Sync_Coord, vdCoordInfo) ;
+         }
+      }
+   }
+
+   ExeSetModified() ;
+  // Se richiesto, salvo il comando Lua equivalente
+   if ( IsCmdLog()) {
+      string sLua = "EgtTrimmingGetSurfBzSyncPoints(" + ToString( nParentId) + "," +
+                                                        ToString( nEdge1Id) + "," +
+                                                        ToString( nEdge2Id) + "," +
+                                                        ToString( dLinTol) + "," +
+                                                        ToString( nFirstId) + "," +
+                                                        ToString( nCount) + ")" +
+                    " -- bOk=" + ToString( bOk) ;
+      LOG_INFO( GetCmdLogger(), sLua.c_str()) ;
+   }
+
+   return bOk ;
+}
+
+//----------------------------------------------------------------------------
+bool
+ExeTrimmingSkimSyncPoints( int nEdge1Id, int nEdge2Id, const INTVECTOR& vnLineId, double dLinTol,
+                           double dAngTol, int nMaxInvLine)
+{
+  // Verifica database geometrico
+   IGeomDB* pGeomDB = GetCurrGeomDB() ;
+   VERIFY_GEOMDB( pGeomDB, GDB_ID_NULL)
+
+  // Se necessario aggiusto le tolleranze
+   double dMyLinTol = Clamp( dLinTol, EPS_SMALL, 1e5 * EPS_SMALL) ;
+   double dMyAngTol = Clamp( dAngTol, 1., 45.) ;
+   int nMyMaxInvLine = Clamp( nMaxInvLine, 1, 100) ;
+
+  // Recupero le due Curve di bordo
+   const ICurve* pCrvEdge1 = GetCurve( pGeomDB->GetGeoObj( nEdge1Id)) ;
+   const ICurve* pCrvEdge2 = GetCurve( pGeomDB->GetGeoObj( nEdge2Id)) ;
+   bool bOk = ( pCrvEdge1 != nullptr && pCrvEdge1->IsValid() && pCrvEdge2 != nullptr && pCrvEdge2->IsValid()) ;
+
+  // Definisco il vettore degli Estremi
+   BIPNTVECTOR vSyncPoints ; vSyncPoints.reserve( vnLineId.size()) ;
+   for ( int i = 0 ; bOk && i < int( vnLineId.size()) ; ++ i) {
+      const ICurve* pLine = GetCurve( pGeomDB->GetGeoObj( vnLineId[i])) ;
+      bOk = ( pLine != nullptr && pLine->IsValid()) ;
+      if ( bOk) {
+         Point3d ptStart, ptEnd ;
+         bOk = ( pLine->GetStartPoint( ptStart) && pLine->GetEndPoint( ptEnd)) ;
+         if ( bOk)
+            vSyncPoints.emplace_back( make_pair( ptStart, ptEnd)) ;
+      }
+   }
+
+  // Scelta di Selezione delle linee di sincronizzazione
+  // 1) In presenza di Spigoli, vengono sempre visualizzate ( Spigolo definito da tolleranza angolare)
+  // 2) 1 Curva su 'nMyMaxInvLine' viene mostrata altrimenti
+   int nInvisibleCount = 0 ;
+   for ( int nL = 0 ; bOk && nL < int( vSyncPoints.size()) ; ++ nL) {
+      bool bVisible = false ;
+      Point3d ptUseless = P_INVALID ;
+     // Recupero gli Estremi e controllo se sono su uno spigolo tra una delle due curve
+      double dUS = 0. ;
+      bOk = bOk && pCrvEdge1->GetParamAtPoint( vSyncPoints[nL].first, dUS, dMyLinTol) ;
+      if ( bOk) {
+         Vector3d vtPrev, vtAft ;
+         bOk = pCrvEdge1->GetPointD1D2( dUS, ICurve::FROM_MINUS, ptUseless, &vtPrev) &&
+               pCrvEdge1->GetPointD1D2( dUS, ICurve::FROM_PLUS, ptUseless, &vtAft) ;
+         if ( bOk) {
+            vtPrev.Normalize() ; vtAft.Normalize() ;
+            bVisible = ( vtPrev * vtAft < cos( ( dMyAngTol + EPS_ANG_SMALL) * DEGTORAD)) ;
+            if ( ! bVisible) {
+               double dUE = 0. ;
+               bOk = bOk && pCrvEdge2->GetParamAtPoint( vSyncPoints[nL].second, dUE, dMyLinTol) ;
+               bOk = pCrvEdge2->GetPointD1D2( dUE, ICurve::FROM_MINUS, ptUseless, &vtPrev) &&
+                     pCrvEdge2->GetPointD1D2( dUE, ICurve::FROM_PLUS, ptUseless, &vtAft) ;
+               if ( bOk) {
+                  vtPrev.Normalize() ; vtAft.Normalize() ;
+                  bVisible = ( vtPrev * vtAft < cos( ( dMyAngTol + EPS_ANG_SMALL) * DEGTORAD)) ;
+               }
+            }
+         }
+         if ( bOk) {
+           // Imposto lo Stato
+            if ( ! bVisible)
+              ++ nInvisibleCount ;
+            if ( nInvisibleCount == nMyMaxInvLine) {
+               bVisible = true ;
+               nInvisibleCount = 0 ;
+            }
+            pGeomDB->SetStatus( vnLineId[nL], bVisible ? GDB_ST_ON : GDB_ST_OFF) ;
+         }
+      }
+   }
+
+   return bOk ;
+}
diff --git a/EgtExecutor.vcxproj b/EgtExecutor.vcxproj
index 044ba37..0a70be6 100644
--- a/EgtExecutor.vcxproj
+++ b/EgtExecutor.vcxproj
@@ -297,6 +297,7 @@ copy $(TargetPath) \EgtProg\Dll64</Command>
     <ClCompile Include="EXE_Scene.cpp" />
     <ClCompile Include="EXE_ShortestPath.cpp" />
     <ClCompile Include="EXE_TestObjSurface.cpp" />
+    <ClCompile Include="EXE_Trimming.cpp" />
     <ClCompile Include="EXE_TscExec.cpp" />
     <ClCompile Include="AuxTools.cpp" />
     <ClCompile Include="DllExchange.cpp" />
@@ -324,6 +325,7 @@ copy $(TargetPath) \EgtProg\Dll64</Command>
     <ClCompile Include="LUA_PolynomialRoots.cpp" />
     <ClCompile Include="LUA_Redis.cpp" />
     <ClCompile Include="LUA_TestObjSurface.cpp" />
+    <ClCompile Include="LUA_Trimming.cpp" />
     <ClCompile Include="PictureObj.cpp" />
     <ClCompile Include="LUA_Base.cpp" />
     <ClCompile Include="LUA_GdbCreateCurve.cpp" />
diff --git a/EgtExecutor.vcxproj.filters b/EgtExecutor.vcxproj.filters
index b1e895f..e214c45 100644
--- a/EgtExecutor.vcxproj.filters
+++ b/EgtExecutor.vcxproj.filters
@@ -407,6 +407,12 @@
     <ClCompile Include="LUA_TestObjSurface.cpp">
       <Filter>File di origine\LUA</Filter>
     </ClCompile>
+    <ClCompile Include="Lua_Trimming.cpp">
+      <Filter>File di origine\LUA</Filter>
+    </ClCompile>
+    <ClCompile Include="EXE_Trimming.cpp">
+      <Filter>File di origine\EXE</Filter>
+    </ClCompile>
     <ClCompile Include="EXE_MachOpt.cpp">
       <Filter>File di origine\EXE</Filter>
     </ClCompile>
diff --git a/LUA.h b/LUA.h
index 3a56eaf..6a8e333 100644
--- a/LUA.h
+++ b/LUA.h
@@ -141,3 +141,5 @@ bool LuaInstallRedis( LuaMgr& luaMgr) ;
 //-------------------------- Base64 ------------------------------------------
 bool LuaInstallBase64( LuaMgr& luaMgr) ;
 
+//---------------------------------- Trimming ----------------------------------
+bool LuaInstallTrimming( LuaMgr& luaMgr) ;
diff --git a/LUA_Base.cpp b/LUA_Base.cpp
index fa1e8d4..e512718 100644
--- a/LUA_Base.cpp
+++ b/LUA_Base.cpp
@@ -194,7 +194,11 @@ LuaInstallEgtFunctions( LuaMgr& LuaMgr)
       LOG_ERROR( GetLogger(), "Error in LuaInstallBase64 (LuaInstallEgtFunctions)")
       return false ;
    }
-   
+   if ( ! LuaInstallTrimming( LuaMgr)) {
+      LOG_ERROR( GetLogger(), "Error in LuaInstallTrimming (LuaInstallEgtFunctions)")
+      return false ;
+   }
+
    return true ;
 }
 
diff --git a/Lua_Trimming.cpp b/Lua_Trimming.cpp
new file mode 100644
index 0000000..60cf332
--- /dev/null
+++ b/Lua_Trimming.cpp
@@ -0,0 +1,304 @@
+//----------------------------------------------------------------------------
+//  EgalTech 2025-2025
+//----------------------------------------------------------------------------
+// File : LUA_Trimming.cpp       Data : 23.10.25      Versione : 2.7j3
+// Contenuto : Funzioni per le lavorazioni di Trimming.
+//
+// Modifiche : 23.10.25 RE Creazione modulo.
+//
+//
+//----------------------------------------------------------------------------
+
+//--------------------------- Include ----------------------------------------
+#include "stdafx.h"
+#include "LUA.h"
+#include "/EgtDev/Include/EXeExecutor.h"
+#include "/EgtDev/Include/EXeConst.h"
+#include "/EgtDev/Include/EGkLuaAux.h"
+#include "/EgtDev/Include/EGnStringUtils.h"
+
+using namespace std ;
+
+// ------------------------------------------------------------------------------
+static int
+LuaTrimmingAutoSearch( lua_State* L)
+{
+  // 9 parametri : nParentId, nSurfLayerId, dShapeLinTol, dShapeAngTol, dLinTol, dEdgeLinTol, dAngTol, dAngFaceTol, vsShapes
+   int nParentId ;
+   LuaCheckParam( L, 1, nParentId)
+   int nSurfLayerId ;
+   LuaCheckParam( L, 2, nSurfLayerId)
+   double dShapeLinTol ;
+   LuaCheckParam( L, 3, dShapeLinTol)
+   double dShapeAngTol ;
+   LuaCheckParam( L, 4, dShapeAngTol)
+   double dLinTol ;
+   LuaCheckParam( L, 5, dLinTol)
+   double dEdgeLinTol ;
+   LuaCheckParam( L, 6, dEdgeLinTol)
+   double dAngTol ;
+   LuaCheckParam( L, 7, dAngTol)
+   double dAngFaceTol ;
+   LuaCheckParam( L, 8, dAngFaceTol)
+   STRVECTOR vsShapes ;
+   LuaCheckParam( L, 9, vsShapes)
+   LuaClearStack( L) ;
+  // Recupero le lavorazioni di Trimming associate
+   INTVECTOR vOtherFaces ;
+   bool bOk = ExeTrimmingAutoSearch( nParentId, nSurfLayerId, dShapeLinTol, dShapeAngTol, dLinTol,
+                                     dEdgeLinTol, dAngTol, dAngFaceTol, vsShapes) ;
+   LuaSetParam( L, bOk) ;
+   return 1 ;
+}
+
+// ------------------------------------------------------------------------------
+static int
+LuaTrimmingGetSurfTmFaceAdj( lua_State* L)
+{
+  // 6 parametri : nSurfId, vTria, vPts, dAngTol, dSize, dSizeTol 
+   int nSurfId ;
+   LuaCheckParam( L, 1, nSurfId)
+   INTVECTOR vTria ;
+   LuaCheckParam( L, 2, vTria)
+   PNTVECTOR vPts ;
+   LuaCheckParam( L, 3, vPts)
+   double dAngTol ;
+   LuaCheckParam( L, 4, dAngTol)
+   double dSize ;
+   LuaCheckParam( L, 5, dSize)
+   double dSizeTol ;
+   LuaCheckParam( L, 6, dSizeTol)
+   LuaClearStack( L) ;
+  // Recupero le facce adiacenti in tolleranza angolare
+   INTVECTOR vOtherFaces ;
+   bool bOk = ExeTrimmingGetSurfTmFaceAdj( nSurfId, vTria, vPts, dAngTol, dSize, dSizeTol, vOtherFaces) ;
+   LuaSetParam( L, bOk) ;
+   if ( bOk)
+      LuaSetParam( L, vOtherFaces) ;
+   else
+      LuaSetParam( L) ;
+   return 2 ;
+}
+
+// ------------------------------------------------------------------------------
+static int
+LuaTrimmingGetSurfTmFromStmFaces( lua_State* L)
+{
+  // 3 Parametri : nParentId, nSurfId, vFaces
+   int nParentId ;
+   LuaCheckParam( L, 1, nParentId)
+   int nSurfId ;
+   LuaCheckParam( L, 2, nSurfId)
+   INTVECTOR vFaces ;
+   LuaCheckParam( L, 3, vFaces)
+   LuaClearStack( L) ;
+   int nNewSurfId = ExeTrimmingGetSurfTmFromStmFaces( nParentId, nSurfId, vFaces) ;
+   LuaSetParam( L, nNewSurfId) ;
+   return 1 ;
+}
+
+// ------------------------------------------------------------------------------
+static int
+LuaTrimmingGetAdjSurfs( lua_State* L)
+{
+  // 5 parametri : nRefSfrId, vAllSurfId, dLinTol, dAngTol, dAngFaceTol
+   INTVECTOR vRefSurfId ;
+   LuaCheckParam( L, 1, vRefSurfId)
+   INTVECTOR vOtherSurfId ;
+   LuaCheckParam( L, 2, vOtherSurfId)
+   double dLinTol ;
+   LuaCheckParam( L, 3, dLinTol)
+   double dAngTol ;
+   LuaCheckParam( L, 4, dAngTol)
+   double dAngFaceTol ;
+   LuaCheckParam( L, 5, dAngFaceTol)
+   LuaClearStack( L) ;
+  // Calcolo le facce adiacenti per tolleranza
+   INTVECTOR vOtherSurf ;
+   bool bOk = ExeTrimmingGetAdjSurfs( vRefSurfId, vOtherSurfId, dLinTol, dAngTol, dAngFaceTol, vOtherSurf) ;
+  // Restituisco il risultato
+   LuaSetParam( L, bOk) ;
+   LuaSetParam( L, vOtherSurf) ;
+   return 2 ;
+}
+
+// -------------------------------------------------------------------------------
+static int
+LuaTrimmingGetBorders( lua_State* L)
+{
+  // 4 parametri : nParentId, vIds, dLinTol, dAngTol
+   int nParentId ;
+   LuaCheckParam( L, 1, nParentId)
+   SELVECTOR vIds ;
+   LuaCheckParam( L, 2, vIds)
+   double dLinTol ;
+   LuaCheckParam( L, 3, dLinTol)
+   double dAngTol ;
+   LuaCheckParam( L, 4, dAngTol)
+   LuaClearStack( L) ;
+  // Creo le curve di Edge grezze
+   int nFirstId = GDB_ID_NULL ;
+   int nCount = 0 ;
+   bool bOk = ExeTrimmingGetBorders( nParentId, vIds, dLinTol, dAngTol, nFirstId, nCount) ;
+   LuaSetParam( L, bOk) ;
+   LuaSetParam( L, nFirstId) ;
+   LuaSetParam( L, nCount) ;
+   return 3 ;
+}
+
+// -------------------------------------------------------------------------------
+static int
+LuaTrimmingGetBordersByNormals( lua_State* L)
+{
+  // 5 o 6 parametri : nParentId, vIds, dLinTol, dAngTol, dThickness [, ptNear]
+   int nParentId ;
+   LuaCheckParam( L, 1, nParentId)
+   SELVECTOR vIds ;
+   LuaCheckParam( L, 2, vIds)
+   double dLinTol ;
+   LuaCheckParam( L, 3, dLinTol)
+   double dAngTol ;
+   LuaCheckParam( L, 4, dAngTol)
+   double dThickness ;
+   LuaCheckParam( L, 5, dThickness)
+   Point3d ptNear = P_INVALID ;
+   LuaGetParam( L, 6, ptNear) ;
+   LuaClearStack( L) ;
+  // Creo le curve di Edge grezze
+   int nFirstId = GDB_ID_NULL ;
+   int nCount = 0 ;
+   bool bOk = ExeTrimmingGetBordersByNormals( nParentId, vIds, dLinTol, dAngTol, dThickness, ptNear, nFirstId, nCount) ;
+   LuaSetParam( L, bOk) ;
+   LuaSetParam( L, nFirstId) ;
+   LuaSetParam( L, nCount) ;
+   return 3 ;
+}
+
+// -------------------------------------------------------------------------------
+static int
+LuaTrimmingGetFinalBorders( lua_State* L)
+{
+  // 4 o 5 o 6 o 7 parametri : nParentId, vCrvBezierId, dLinTol, dAngTol [,vBreakingPts] [,dThick] [,dThickTol]
+   int nParentId ;
+   LuaCheckParam( L, 1, nParentId)
+   INTVECTOR vCrvBezierId ;
+   LuaCheckParam( L, 2, vCrvBezierId)
+   double dLinTol ;
+   LuaCheckParam( L, 3, dLinTol)
+   double dAngTol ;
+   LuaCheckParam( L, 4, dAngTol)
+   PNTVECTOR vBreakingPts ;
+   double dThick = 0., dThickTol = EPS_SMALL ;
+   int nInd = 5 ;
+   if ( LuaGetParam( L, nInd, vBreakingPts))
+      ++ nInd ;
+   if ( LuaGetParam( L, nInd, dThick)) {
+      if ( ! LuaGetParam( L, nInd + 1, dThickTol)) {
+         LuaClearStack( L) ;
+         LuaSetParam( L, false) ;
+         return 1 ;
+      }
+   }
+   LuaClearStack( L) ;
+  // Creo le curve Edges
+   int nFirstId = GDB_ID_NULL ;
+   int nCount = 0 ;
+   bool bOk = ExeTrimmingGetFinalBorders( nParentId, vCrvBezierId, dLinTol, dAngTol, vBreakingPts, dThick, dThickTol,
+                                          nFirstId, nCount) ;
+   LuaSetParam( L, bOk) ;
+   LuaSetParam( L, nFirstId) ;
+   LuaSetParam( L, nCount) ;
+   return 3 ;
+}
+
+//-------------------------------------------------------------------------------
+static int
+LuaTrimmingGetRuledBezier( lua_State* L)
+{
+  // 5 o 6 parametri : nParentId, vIds, nEdge1Id, nEdge2Id, dLinTol [,vnLineId]
+   int nParentId ;
+   LuaCheckParam( L, 1, nParentId)
+   INTVECTOR vIds ;
+   LuaCheckParam( L, 2, vIds) ; // serve per orientare la superficie rigata ( Ids delle superfici)
+   int nEdge1Id ;
+   LuaCheckParam( L, 3, nEdge1Id)
+   int nEdge2Id ;
+   LuaCheckParam( L, 4, nEdge2Id)
+   double dLinTol ;
+   LuaCheckParam( L, 5, dLinTol)
+   INTVECTOR vnLineId ;
+   LuaGetParam( L, 6, vnLineId) ;
+   LuaClearStack( L) ;
+  // Calcolo la superficie di Bezier rigata
+   int nId = ExeTrimmingGetRuledBezier( nParentId, vIds, nEdge1Id, nEdge2Id, dLinTol, vnLineId) ;
+   LuaSetParam( L, nId) ;
+   return 1 ;
+}
+
+//-------------------------------------------------------------------------------
+static int
+LuaTrimmingGetSurfBzSyncPoints( lua_State* L)
+{
+  // 4 parametri : nParentId, nEdge1Id, nEdge2Id, dLinTol
+   int nParentId ;
+   LuaCheckParam( L, 1, nParentId)
+   int nEdge1Id ;
+   LuaCheckParam( L, 2, nEdge1Id)
+   int nEdge2Id ;
+   LuaCheckParam( L, 3, nEdge2Id)
+   double dLinTol ;
+   LuaCheckParam( L, 4, dLinTol)
+   LuaClearStack( L) ;
+  // Inserisco i tratti lineari associati ai punti di sincronizzazione
+   int nFirstId = GDB_ID_NULL ;
+   int nCount = 0 ;
+   bool bOk = ExeTrimmingGetSurfBzSyncPoints( nParentId, nEdge1Id, nEdge2Id, dLinTol, nFirstId, nCount) ;
+   LuaSetParam( L, bOk) ;
+   LuaSetParam( L, nFirstId) ;
+   LuaSetParam( L, nCount) ;
+   return 3 ;
+}
+
+// ------------------------------------------------------------------------------
+static int
+LuaTrimmingSkimSyncPoints( lua_State* L)
+{
+  // 5 o 6 parametri : nEdge1Id, nEdge2Id, vnLineId, dLinTol, dAngTol [,nMaxInvLine]
+   int nEdge1Id ;
+   LuaCheckParam( L, 1, nEdge1Id)
+   int nEdge2Id ;
+   LuaCheckParam( L, 2, nEdge2Id)
+   INTVECTOR vnLineId ;
+   LuaCheckParam( L, 3, vnLineId)
+   double dLinTol ;
+   LuaCheckParam( L, 4, dLinTol)
+   double dAngTol ;
+   LuaCheckParam( L, 5, dAngTol)
+   int nMaxInvLine = 4 ;
+   LuaGetParam( L, 6, nMaxInvLine) ;
+   LuaClearStack( L) ;
+  // Nascondo/Visualizzo i tratti lineari di sincronizzazione
+   bool bOk = ExeTrimmingSkimSyncPoints( nEdge1Id, nEdge2Id, vnLineId, dLinTol, dAngTol, nMaxInvLine) ;
+   LuaSetParam( L, bOk) ;
+   return 1 ;
+}
+
+//-------------------------------------------------------------------------------
+bool
+LuaInstallTrimming( LuaMgr& luaMgr)
+{
+   bool bOk = ( &luaMgr != nullptr) ;
+  // ---
+   bOk = bOk && luaMgr.RegisterFunction( "EgtTrimmingAutoSearch", LuaTrimmingAutoSearch) ;
+  // --- 
+   bOk = bOk && luaMgr.RegisterFunction( "EgtTrimmingGetSurfTmFaceAdj", LuaTrimmingGetSurfTmFaceAdj) ;
+   bOk = bOk && luaMgr.RegisterFunction( "EgtTrimmingGetSurfTmFromStmFaces", LuaTrimmingGetSurfTmFromStmFaces) ;
+   bOk = bOk && luaMgr.RegisterFunction( "EgtTrimmingGetAdjSurfs", LuaTrimmingGetAdjSurfs) ;
+   bOk = bOk && luaMgr.RegisterFunction( "EgtTrimmingGetBorders", LuaTrimmingGetBorders) ;
+   bOk = bOk && luaMgr.RegisterFunction( "EgtTrimmingGetBordersByNormals", LuaTrimmingGetBordersByNormals) ;
+   bOk = bOk && luaMgr.RegisterFunction( "EgtTrimmingGetFinalBorders", LuaTrimmingGetFinalBorders) ;
+   bOk = bOk && luaMgr.RegisterFunction( "EgtTrimmingGetRuledBezier", LuaTrimmingGetRuledBezier) ;
+   bOk = bOk && luaMgr.RegisterFunction( "EgtTrimmingGetSurfBzSyncPoints", LuaTrimmingGetSurfBzSyncPoints) ;
+   bOk = bOk && luaMgr.RegisterFunction( "EgtTrimmingSkimSyncPoints", LuaTrimmingSkimSyncPoints) ;
+   return bOk ;
+}
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