diff --git a/EExExportThreeJS.h b/EExExportThreeJS.h
new file mode 100644
index 0000000..7909441
--- /dev/null
+++ b/EExExportThreeJS.h
@@ -0,0 +1,42 @@
+//----------------------------------------------------------------------------
+//  EgalTech 2014-2014
+//----------------------------------------------------------------------------
+// File : EExExportStl.h          Data : 07.08.14          Versione : 1.5h2
+// Contenuto : Dichiarazione della interfaccia IExportStl.
+//
+//
+//
+// Modifiche : 07.08.14 DS Creazione modulo.
+//
+//
+//----------------------------------------------------------------------------
+
+#pragma once
+
+#include "/EgtDev/Include/EGkGeomDB.h"
+#include "/EgtDev/Include/EExExportConst.h"
+#include <string>
+#include "/EgtDev/Include/EGrScene.h"
+
+//----------------------- Macro per import/export ----------------------------
+#undef EEK_EXPORT
+#if defined( I_AM_EEX)            // da definirsi solo nella DLL
+#define EEX_EXPORT __declspec( dllexport)
+#else
+#define EEX_EXPORT __declspec( dllimport)
+#endif
+
+//-----------------------------------------------------------------------------
+class __declspec(novtable) IExportThreeJS
+{
+public:
+    virtual ~IExportThreeJS( void) {}
+    virtual bool SetOptions( int nFilter) = 0 ;
+    virtual bool Export( IGeomDB* pGDB, int nId, const std::string& sFile, IEGrScene* pScene, bool bUdm) = 0 ;
+};
+
+//-----------------------------------------------------------------------------
+extern "C" {
+    EEX_EXPORT bool SetThreeJSAuxDir( const std::string& sThreeJSAuxDir) ;
+    EEX_EXPORT IExportThreeJS* CreateExportThreeJS( void) ;
+}
diff --git a/EGrScene.h b/EGrScene.h
index 1db0e8c..cc27b30 100644
--- a/EGrScene.h
+++ b/EGrScene.h
@@ -64,6 +64,7 @@ class IEGrScene
       virtual void GetCamera( double* pdAngVertDeg, double* pdAngOrizzDeg, double* pdDist = nullptr) const = 0 ;
       virtual int  GetCameraDir( void) const = 0 ;
       virtual const Vector3d& GetCameraUp( void) const = 0 ;
+      virtual void GetOrthoCamParam(double* pdWidth, double* pdHeight, double* pdNear, double* pdFar) const = 0 ;
       virtual bool PanCamera( const Point3d& ptWinOld, const Point3d& ptWinNew) = 0 ;
       virtual bool RotateCamera( const Point3d& ptWinOld, const Point3d& ptWinNew) = 0 ;
       virtual bool ZoomAll( void) = 0 ;
@@ -93,6 +94,8 @@ class IEGrScene
       virtual bool SetGridShow( bool bShowGrid, bool bShowFrame) = 0 ;
       virtual bool SetGridGeo( double dSnapStep, int nMinLineSstep, int nMajLineSstep, int nExtSstep) = 0 ;
       virtual bool SetGridColor( Color colMinLine, Color colMajLine) = 0 ;
+      virtual void GetGridParam( double& dSnapStep, int& nExtStep) const = 0 ;
+      virtual bool GetShowGrid() = 0 ;
      // Glob Frame
       virtual bool SetGlobFrameShow( bool bShow) = 0 ;
      // Direct
@@ -139,6 +142,8 @@ class IEGrScene
      // Image
       virtual bool GetImage( int nShowMode, Color colBackTop, Color colBackBottom,
                              int nDestWidth, int nDestHeight, const std::string& sFile) = 0 ;
+      
+      
 } ;
 
 //-----------------------------------------------------------------------------
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 24d1a8e..40acddf 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -111,6 +111,7 @@ EXE_EXPORT bool ExeSaveMachGroupToFile( int nMGroupId, const std::string& sFileP
 // Exchange
 EXE_EXPORT int  ExeGetFileType( const std::string& sFilePath) ;
 EXE_EXPORT bool ExeSetBtlAuxDir( const std::string& sBtlAuxDir) ;
+EXE_EXPORT bool ExeSetThreeJSAuxDir( const std::string & sThreeJSAuxDir) ;
 EXE_EXPORT bool ExeImportBtl( const std::string& sFilePath, int nFlag) ;
 EXE_EXPORT bool ExeImportBtlx( const std::string& sFilePath, int nFlag) ;
 EXE_EXPORT bool ExeImportCnc( const std::string& sFilePath, int nFlag) ;
@@ -125,6 +126,7 @@ EXE_EXPORT bool ExeExportDxf( int nId, const std::string& sFilePath, int nFlag =
 EXE_EXPORT bool ExeExportStl( int nId, const std::string& sFilePath) ;
 EXE_EXPORT bool ExeExport3MF( int nId, const std::string& sFilePath) ;
 EXE_EXPORT bool ExeExportSvg( int nId, const std::string& sFilePath, int nFilter = 393) ;
+EXE_EXPORT bool ExeExportThreeJS( int nId, const std::string& sFilePath, int nFilter = 393) ;
 
 // BeamManager
 EXE_EXPORT bool ExeInitBeamMgr( int nFlag) ;