diff --git a/Scene.h b/Scene.h
index c5e2a04..914f44b 100644
--- a/Scene.h
+++ b/Scene.h
@@ -106,6 +106,7 @@ class Scene : public IEGrScene
       bool ZoomChange( double dCoeff) override ;
       bool ZoomOnPoint( const Point3d& ptWin, double dCoeff) override ;
       bool ZoomWin( const Point3d& ptWin1, const Point3d& ptWin2) override ;
+      void GetOrthoCamParam( double* pdWidth, double* pdHeight, double* pdNear, double* pdFar) const override ;
      // ShowMode
       bool SetShowMode( int nShowMode) override
                 { if ( nShowMode != SM_WIREFRAME  &&
@@ -142,6 +143,7 @@ class Scene : public IEGrScene
       bool SetGridShow( bool bShowGrid, bool bShowFrame) override ;
       bool SetGridGeo( double dSnapStep, int nMinLineSstep, int nMajLineSstep, int nExtSstep) override ;
       bool SetGridColor( Color colMinLine, Color colMajLine) override ;
+      void GetGridParam( double* pdSnapStep, int* pnExtStep) const override ;
      // Glob Frame
       bool SetGlobFrameShow( bool bShow) override ;
      // Direct
diff --git a/SceneCamera.cpp b/SceneCamera.cpp
index e962f1b..98310ac 100644
--- a/SceneCamera.cpp
+++ b/SceneCamera.cpp
@@ -418,4 +418,18 @@ Scene::ZoomWin( const Point3d& ptWin1, const Point3d& ptWin2)
 
   // adatto le dimensioni a quelle della vista
    return AdjustDimView( dHalfWidth, dHalfHeight) ;
-}
\ No newline at end of file
+}
+
+//----------------------------------------------------------------------------
+void
+Scene::GetOrthoCamParam( double* pdWidth, double* pdHeight, double* pdNear, double* pdFar) const
+{
+    if ( pdWidth != nullptr)
+        *pdWidth = m_dHalfWidth ;
+    if ( pdHeight != nullptr)
+        *pdHeight = m_dHalfHeight ;
+    if ( pdNear != nullptr)
+        *pdNear = m_dZNear ;
+    if ( pdFar != nullptr)
+        *pdFar = m_dZFar ;
+}
diff --git a/SceneGrid.cpp b/SceneGrid.cpp
index d0990e0..bc3ef49 100644
--- a/SceneGrid.cpp
+++ b/SceneGrid.cpp
@@ -170,4 +170,14 @@ Scene::DrawGrid( void)
    glLineWidth( (float) GetLineWidth()) ;
 
    return true ;
+}
+
+//----------------------------------------------------------------------------
+void 
+Scene::GetGridParam(double* pdSnapStep, int* pnExtStep) const
+{
+    if ( pdSnapStep != nullptr)
+        *pdSnapStep = m_dSnapStep ;
+    if ( pnExtStep != nullptr)
+        *pnExtStep = m_nExtSstep ;
 }
\ No newline at end of file