diff --git a/EGkGdbConst.h b/EGkGdbConst.h
index a5798f8..05c6cbc 100644
--- a/EGkGdbConst.h
+++ b/EGkGdbConst.h
@@ -57,6 +57,8 @@ enum GdbMaterial { GDB_MT_COLOR = -1,
 const int GDB_MT_NULL = GDB_MT_PARENT ;
 
 //----------------- Costanti flag di BBox --------------------------------------
-enum BBoxFlag { BBF_NONE = 0,
+enum BBoxFlag { BBF_STANDARD = 0,
                 BBF_ONLY_VISIBLE = 1,
-                BBF_IGNORE_TEXT = 2} ;
+                BBF_IGNORE_TEXT = 2,
+                BBF_IGNORE_DIM = 3,
+                BBF_EXACT = 4} ;
diff --git a/EGkGdbIterator.h b/EGkGdbIterator.h
index 4ae042b..7073495 100644
--- a/EGkGdbIterator.h
+++ b/EGkGdbIterator.h
@@ -51,9 +51,9 @@ class __declspec( novtable) IGdbIterator
       virtual int  GetId( void) const = 0 ;
       virtual int  GetParentId( void) const = 0 ;
       virtual bool GetGlobFrame( Frame3d& frGlob) const = 0 ;
-      virtual bool GetLocalBBox( BBox3d& b3Loc, int nFlag = BBF_NONE) const = 0 ;
-      virtual bool GetGlobalBBox( BBox3d& b3Glob, int nFlag = BBF_NONE) const = 0 ;
-      virtual bool GetRefBBox( const Frame3d& frRef, BBox3d& b3Ref, int nFlag = BBF_NONE) const = 0 ;
+      virtual bool GetLocalBBox( BBox3d& b3Loc, int nFlag = BBF_STANDARD) const = 0 ;
+      virtual bool GetGlobalBBox( BBox3d& b3Glob, int nFlag = BBF_STANDARD) const = 0 ;
+      virtual bool GetRefBBox( const Frame3d& frRef, BBox3d& b3Ref, int nFlag = BBF_STANDARD) const = 0 ;
       virtual bool SetLevel( int nLevel) = 0 ;
       virtual bool RevertLevel( void) = 0 ;
       virtual bool GetLevel( int& nLevel) const = 0 ;
diff --git a/EGkGeoObj.h b/EGkGeoObj.h
index 8e359a2..3b51342 100644
--- a/EGkGeoObj.h
+++ b/EGkGeoObj.h
@@ -18,6 +18,7 @@
 #include "/EgtDev/Include/EGkBBox3d.h"
 #include "/EgtDev/Include/EGkGeoObjType.h"
 #include "/EgtDev/Include/EGkObjGraphics.h"
+#include "/EgtDev/Include/EGkGdbConst.h"
 #include <string>
 
 //----------------------- Macro per import/export ----------------------------
@@ -38,8 +39,8 @@ class __declspec( novtable) IGeoObj
       virtual bool IsValid( void) const = 0 ;
       virtual const std::string& GetTitle( void) const = 0 ;
       virtual bool Dump( std::string& sOut, const char* szNewLine = "\n") const = 0 ;
-      virtual bool GetLocalBBox( BBox3d& b3Loc) const = 0 ;
-      virtual bool GetBBox( const Frame3d& frRef, BBox3d& b3Ref) const = 0 ;
+      virtual bool GetLocalBBox( BBox3d& b3Loc, int nFlag = BBF_STANDARD) const = 0 ;
+      virtual bool GetBBox( const Frame3d& frRef, BBox3d& b3Ref, int nFlag = BBF_STANDARD) const = 0 ;
       virtual bool Translate( const Vector3d& vtMove) = 0 ;
       virtual bool Rotate( const Point3d& ptAx, const Vector3d& vtAx, double dAngDeg) = 0 ;
       virtual bool Rotate( const Point3d& ptAx, const Vector3d& vtAx, double dCosAng, double dSinAng) = 0 ;
diff --git a/EGkGeomDB.h b/EGkGeomDB.h
index db84493..dab589b 100644
--- a/EGkGeomDB.h
+++ b/EGkGeomDB.h
@@ -58,9 +58,9 @@ class __declspec( novtable) IGeomDB
       virtual int  GetGroupObjs( int nId) const = 0 ;
       virtual int  GetParentId( int nId) const = 0 ;
       virtual bool GetGlobFrame( int nId, Frame3d& frGlob) const = 0 ;
-      virtual bool GetLocalBBox( int nId, BBox3d& b3Loc, int nFlag = BBF_NONE) const = 0 ;
-      virtual bool GetGlobalBBox( int nId, BBox3d& b3Glob, int nFlag = BBF_NONE) const = 0 ;
-      virtual bool GetRefBBox( int nId, const Frame3d& frRef, BBox3d& b3Ref, int nFlag = BBF_NONE) const = 0 ;
+      virtual bool GetLocalBBox( int nId, BBox3d& b3Loc, int nFlag = BBF_STANDARD) const = 0 ;
+      virtual bool GetGlobalBBox( int nId, BBox3d& b3Glob, int nFlag = BBF_STANDARD) const = 0 ;
+      virtual bool GetRefBBox( int nId, const Frame3d& frRef, BBox3d& b3Ref, int nFlag = BBF_STANDARD) const = 0 ;
       virtual int  Copy( int nIdSou, int nIdDest, int nRefId, int nSonBeforeAfter = GDB_SON) = 0 ;
       virtual int  CopyGlob( int nIdSou, int nIdDest, int nRefId, int nSonBeforeAfter = GDB_SON) = 0 ;
       virtual bool Relocate( int nId, int nRefId, int nSonBeforeAfter = GDB_SON) = 0  ;
diff --git a/EInAPI.h b/EInAPI.h
index 49c13f0..be7cad9 100644
--- a/EInAPI.h
+++ b/EInAPI.h
@@ -37,6 +37,55 @@ EIN_EXPORT BOOL __stdcall EgtSetKey( const wchar_t* sKey) ;
 EIN_EXPORT BOOL __stdcall EgtSetFont( const wchar_t* sNfeFontDir, const wchar_t* sDefaultFont) ;
 EIN_EXPORT BOOL __stdcall EgtFreeMemory( void* pMem) ;
 
+// Geo Base
+EIN_EXPORT BOOL __stdcall EgtVectorNormalize( double* pdX, double* pdY, double* pdZ,
+                          double dEps = EPS_SMALL) ;
+EIN_EXPORT BOOL __stdcall EgtVectorRotate( double* pdX, double* pdY, double* pdZ,
+                          const double vtAx[3], double dAngRotDeg) ;
+EIN_EXPORT BOOL __stdcall EgtVectorScale( double* pdX, double* pdY, double* pdZ,
+                          const double ptOrig[3], const double vtX[3], const double vtY[3], const double vtZ[3],
+                          double dCoeffX, double dCoeffY, double dCoeffZ) ;
+EIN_EXPORT BOOL __stdcall EgtVectorMirror( double* pdX, double* pdY, double* pdZ,
+                          const double vtNorm[3]) ;
+EIN_EXPORT BOOL __stdcall EgtVectorShear( double* pdX, double* pdY, double* pdZ,
+                          const double vtNorm[3], const double vtDir[3], double dCoeff) ;
+EIN_EXPORT BOOL __stdcall EgtVectorToGlob( double* pdX, double* pdY, double* pdZ,
+                          const double ptOrig[3], const double vtX[3], const double vtY[3], const double vtZ[3]) ;
+EIN_EXPORT BOOL __stdcall EgtVectorToLoc( double* pdX, double* pdY, double* pdZ,
+                          const double ptOrig[3], const double vtX[3], const double vtY[3], const double vtZ[3]) ;
+EIN_EXPORT BOOL __stdcall EgtVectorLocToLoc( double* pdX, double* pdY, double* pdZ,
+                          const double ptO1[3], const double vtX1[3], const double vtY1[3], const double vtZ1[3],
+                          const double ptO2[3], const double vtX2[3], const double vtY2[3], const double vtZ2[3]) ;
+EIN_EXPORT BOOL __stdcall EgtPointTranslate( double* pdX, double* pdY, double* pdZ,
+                          const double vtMove[3]) ;
+EIN_EXPORT BOOL __stdcall EgtPointRotate( double* pdX, double* pdY, double* pdZ,
+                          const double ptAx[3], const double vtAx[3], double dAngRotDeg) ;
+EIN_EXPORT BOOL __stdcall EgtPointScale( double* pdX, double* pdY, double* pdZ,
+                          const double ptOrig[3], const double vtX[3], const double vtY[3], const double vtZ[3],
+                          double dCoeffX, double dCoeffY, double dCoeffZ) ;
+EIN_EXPORT BOOL __stdcall EgtPointMirror( double* pdX, double* pdY, double* pdZ,
+                          const double ptOn[3], const double vtNorm[3]) ;
+EIN_EXPORT BOOL __stdcall EgtPointShear( double* pdX, double* pdY, double* pdZ,
+                          const double ptOn[3], const double vtNorm[3], const double vtDir[3], double dCoeff) ;
+EIN_EXPORT BOOL __stdcall EgtPointToGlob( double* pdX, double* pdY, double* pdZ,
+                          const double ptOrig[3], const double vtX[3], const double vtY[3], const double vtZ[3]) ;
+EIN_EXPORT BOOL __stdcall EgtPointToLoc( double* pdX, double* pdY, double* pdZ,
+                          const double ptOrig[3], const double vtX[3], const double vtY[3], const double vtZ[3]) ;
+EIN_EXPORT BOOL __stdcall EgtPointLocToLoc( double* pdX, double* pdY, double* pdZ,
+                          const double ptO1[3], const double vtX1[3], const double vtY1[3], const double vtZ1[3],
+                          const double ptO2[3], const double vtX2[3], const double vtY2[3], const double vtZ2[3]) ;
+EIN_EXPORT BOOL __stdcall EgtFrameTranslate( double ptOrig[3], double vtX[3], double vtY[3], double vtZ[3],
+                          const double vtMove[3]) ;
+EIN_EXPORT BOOL __stdcall EgtFrameRotate( double ptOrig[3], double vtX[3], double vtY[3], double vtZ[3],
+                          const double ptAx[3], const double vtAx[3], double dAngRotDeg) ;
+EIN_EXPORT BOOL __stdcall EgtFrameToGlob( double ptOrig[3], double vtX[3], double vtY[3], double vtZ[3],
+                          const double ptO1[3], const double vtX1[3], const double vtY1[3], const double vtZ1[3]) ;
+EIN_EXPORT BOOL __stdcall EgtFrameToLoc( double ptOrig[3], double vtX[3], double vtY[3], double vtZ[3],
+                          const double ptO1[3], const double vtX1[3], const double vtY1[3], const double vtZ1[3]) ;
+EIN_EXPORT BOOL __stdcall EgtFrameLocToLoc( double ptOrig[3], double vtX[3], double vtY[3], double vtZ[3],
+                          const double ptO1[3], const double vtX1[3], const double vtY1[3], const double vtZ1[3],
+                          const double ptO2[3], const double vtX2[3], const double vtY2[3], const double vtZ2[3]) ;
+
 // GeomDB
 EIN_EXPORT int  __stdcall EgtInitGeomDB( void) ;
 EIN_EXPORT BOOL __stdcall EgtSetCurrentContext( int nGseCtx) ;