diff --git a/EgtGraphics.rc b/EgtGraphics.rc
index 8d8eec5..b82830a 100644
Binary files a/EgtGraphics.rc and b/EgtGraphics.rc differ
diff --git a/SceneGeom.cpp b/SceneGeom.cpp
index c489c98..232021e 100644
--- a/SceneGeom.cpp
+++ b/SceneGeom.cpp
@@ -27,6 +27,7 @@
 #include "/EgtDev/Include/EGkCurve.h"
 #include "/EgtDev/Include/EGkCurveComposite.h"
 #include "/EgtDev/Include/EGkSurfTriMesh.h"
+#include "/EgtDev/Include/EGkSurfFlatRegion.h"
 #include "/EgtDev/Include/EGkExtText.h"
 #include "/EgtDev/Include/EGkGdbFunct.h"
 
@@ -172,8 +173,12 @@ Scene::DrawGeoObj( const IGdbIterator& iIter, int nPass, const MdStMkCol& siObj)
      // nuova modalità grafica solo per superfici con molti triangoli
       const int N_MIN_TRIA_NEWWAY = 100 ; 
       bool bNewWay = false ;
-      if ( m_bNewWay  &&  nGeoType == SRF_TRIMESH) {
-         const ISurfTriMesh* pSTM = GetSurfTriMesh( pGeoObj) ;
+      if ( m_bNewWay  &&  ( nGeoType & GEO_SURF) != 0) {
+         const ISurfTriMesh* pSTM = nullptr ;
+         switch ( nGeoType) {
+         case SRF_TRIMESH : pSTM = GetSurfTriMesh( pGeoObj) ; break ;
+         case SRF_FLATRGN : pSTM = GetSurfFlatRegion( pGeoObj)->GetAuxSurf() ; break ;
+         }    
          if ( pSTM != nullptr  &&  pSTM->GetTriangleNum() > N_MIN_TRIA_NEWWAY)
             bNewWay = true ;
       }  
@@ -268,10 +273,14 @@ Scene::DrawGeoObj( const IGdbIterator& iIter, int nPass, const MdStMkCol& siObj)
             pGraphics->AddPolyLine( PL) ;
          }
       }
-     // se superficie trimesh
-      else if ( nGeoType == SRF_TRIMESH) {
-        // recupero la superficie
-         const ISurfTriMesh* pSTM = GetSurfTriMesh( pGeoObj) ;
+     // se superficie
+      else if ( ( nGeoType & GEO_SURF) != 0) {
+        // recupero la trimesh da visualizzare
+         const ISurfTriMesh* pSTM = nullptr ;
+         switch (nGeoType) {
+         case SRF_TRIMESH : pSTM = GetSurfTriMesh( pGeoObj) ; break ;
+         case SRF_FLATRGN : pSTM = GetSurfFlatRegion( pGeoObj)->GetAuxSurf() ; break ;
+         }    
          if ( pSTM == nullptr)
             return false ;
          // recupero il materiale
@@ -284,8 +293,8 @@ Scene::DrawGeoObj( const IGdbIterator& iIter, int nPass, const MdStMkCol& siObj)
          pGraphics->AddMaterial( mMat.GetAmbient(), mMat.GetDiffuse(),
                                  mMat.GetSpecular(), mMat.GetShininess()) ;
          pGraphics->AddBackMaterial( GetSurfBackColor( mMat.GetDiffuse())) ;
-         pGraphics->StartTriangles( pSTM->GetTriangleNum()) ;
         // ciclo sui triangoli della superficie
+         pGraphics->StartTriangles( pSTM->GetTriangleNum()) ;
          Triangle3d Tria ;
          TriFlags3d TFlags ;
          TriNormals3d TNrms ;
@@ -308,6 +317,23 @@ Scene::DrawGeoObj( const IGdbIterator& iIter, int nPass, const MdStMkCol& siObj)
          }
          pGraphics->EndTriangles() ;
       }
+     // se superficie FlatRegion
+      else if ( nGeoType == SRF_FLATRGN) {
+        // recupero la superficie
+         const ISurfFlatRegion* pSFR = GetSurfFlatRegion( pGeoObj) ;
+         if ( pSFR == nullptr)
+            return false ;
+         // recupero il materiale
+         Material mMat ;
+         if ( ! iIter.GetCalcMaterial( mMat))
+            mMat.Set( m_colDef) ;
+        // impostazioni iniziali
+         pGraphics->Clear() ;
+         pGraphics->AddColor( siObj.colObj) ;  // per wireframe
+         pGraphics->AddMaterial( mMat.GetAmbient(), mMat.GetDiffuse(),
+                                 mMat.GetSpecular(), mMat.GetShininess()) ;
+         pGraphics->AddBackMaterial( GetSurfBackColor( mMat.GetDiffuse())) ;
+      }
      // se testo
       else if ( nGeoType == EXT_TEXT) {
         // recupero il testo
diff --git a/SceneSelect.cpp b/SceneSelect.cpp
index 64cabb5..c35049b 100644
--- a/SceneSelect.cpp
+++ b/SceneSelect.cpp
@@ -237,7 +237,7 @@ Scene::GetPointFromSelect( int nSelId, const Point3d& ptView, Point3d& ptSel, in
 {
   // recupera il punto di mira proiettato sull'oggetto appena selezionato
   // (va eseguito subito dopo la Select da cui si è derivato l'Id)
-  // è simile a GetSelectedSnapPoint
+  // è simile a FindSelectedSnapPoint
 
   // verifico parametri di ritorno
    if ( &ptSel == nullptr  ||  &nAux == nullptr)