diff --git a/EXE_GdbGetCurve.cpp b/EXE_GdbGetCurve.cpp
index 3beabf7..8ae68a6 100644
--- a/EXE_GdbGetCurve.cpp
+++ b/EXE_GdbGetCurve.cpp
@@ -832,4 +832,18 @@ ExeShowCurveBezierControlPoints( int nCrvId, int nDestGrpId, int* pnCount)
    }
    else
       return GDB_ID_NULL ;
+}
+
+//----------------------------------------------------------------------------
+bool
+ExeCurveMaxOffset( int nId, double& dMaxOffset)
+{
+   IGeomDB* pGeomDB = GetCurrGeomDB() ;
+   VERIFY_GEOMDB( pGeomDB, false)
+   // verifico il parametro
+   if ( &dMaxOffset == nullptr)
+      return false ;
+   // recupero la curva
+   const ICurve* pCrv = GetCurve( pGeomDB->GetGeoObj( nId)) ;
+   return CalcCurveLimitOffset( *pCrv, dMaxOffset) ;
 }
\ No newline at end of file
diff --git a/LUA_GdbGetCurve.cpp b/LUA_GdbGetCurve.cpp
index 657dd40..1072e46 100644
--- a/LUA_GdbGetCurve.cpp
+++ b/LUA_GdbGetCurve.cpp
@@ -261,6 +261,23 @@ LuaCurveArea( lua_State* L)
    }
 }
 
+//----------------------------------------------------------------------------
+static int
+LuaCurveMaxOffset( lua_State* L)
+{
+   // 2 parametri : Id
+   int nId ;
+   LuaCheckParam( L, 1, nId)
+   LuaClearStack( L) ;
+   // recupero la sua area senza eventuali buchi
+   double dMaxOffset ;
+   if ( ExeCurveMaxOffset( nId, dMaxOffset))
+      LuaSetParam( L, dMaxOffset) ;
+   else
+      LuaSetParam( L) ;
+   return 1 ;
+}
+
 //----------------------------------------------------------------------------
 static int
 LuaCurveExtrusion( lua_State* L)
@@ -625,6 +642,7 @@ LuaInstallGdbGetCurve( LuaMgr& luaMgr)
    bOk = bOk && luaMgr.RegisterFunction( "EgtCurveIsATrapezoid", LuaCurveIsATrapezoid) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtCurveAreaXY", LuaCurveAreaXY) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtCurveArea", LuaCurveArea) ;
+   bOk = bOk && luaMgr.RegisterFunction( "EgtCurveMaxOffset", LuaCurveMaxOffset) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtCurveExtrusion", LuaCurveExtrusion) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtCurveThickness", LuaCurveThickness) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtCurveSelfIntersCount", LuaCurveSelfIntersCount) ;