diff --git a/EGkCAvToolSurfTm.h b/EGkCAvToolSurfTm.h
index c3a4ee7..140dcbe 100644
--- a/EGkCAvToolSurfTm.h
+++ b/EGkCAvToolSurfTm.h
@@ -43,8 +43,11 @@ class __declspec( novtable) ICAvToolSurfTm {
       virtual const ICurveComposite& GetToolOutline( bool bApprox = false) const = 0 ;
       virtual bool TestPosition( const Point3d& ptT, const Vector3d& vtDir, const Vector3d& vtMove,
                                  double& dTotDist, Vector3d* pvtTriaN = nullptr) const = 0 ;
+      virtual bool TestPointAdv( const Point3d& ptT, const Vector3d& vtDir, const Vector3d& vtMove,
+                                 double& dTotDist, VCT3DVECTOR& vVtN) const = 0 ;
       virtual bool TestSeries( PNTUVECTOR& vPntM, const Vector3d& vtDir, const Vector3d& vtMove, double dProgCoeff = 1) = 0 ;
       virtual bool TestPath( PNTULIST& lPntM, const Vector3d& vtDir, const Vector3d& vtMove, double dLinTol, double dProgCoeff = 1) = 0 ;
+      virtual bool TestPointsAdv( PNTUVVECTLIST& lPntM, const Vector3d& vtDir, const Vector3d& vtMove, double dProgCoeff = 1) = 0 ;
 } ;
 
 //-----------------------------------------------------------------------------
diff --git a/EGkCalcPocketing.h b/EGkCalcPocketing.h
index 14f63d3..29d23c3 100644
--- a/EGkCalcPocketing.h
+++ b/EGkCalcPocketing.h
@@ -28,7 +28,7 @@
 EGK_EXPORT bool CalcPocketing( const ISurfFlatRegion* pSfr, double dRad, double dRadOffs, double dStep,
                                double dAngle, int nType, bool bSmooth, bool bInvert, bool bAvoidOpt,
                                bool bAllowZigZagOneWayBorders, const Point3d& ptEndPrec, const ISurfFlatRegion* pSfrLimit,
-                               ICRVCOMPOPOVECTOR& vCrv) ;
+                               bool bAllOffs, ICRVCOMPOPOVECTOR& vCrv) ;
 EGK_EXPORT bool CalcZigZagInfill( const ISurfFlatRegion* pSfr, double dStep, bool bSmooth, bool bRemoveOverlapLink,
                                   ICRVCOMPOPOVECTOR& vCrvCompoRes) ;
 
diff --git a/EGkGeoCollection.h b/EGkGeoCollection.h
index 075e681..cece8ed 100644
--- a/EGkGeoCollection.h
+++ b/EGkGeoCollection.h
@@ -70,3 +70,15 @@ typedef std::vector<std::pair<BBox3d,int>>  BOXIVECTOR ;   // vettore di boundin
 typedef std::pair<Point3d,Vector3d> PNTVECT ;        // coppia punto, vettore
 typedef std::vector<PNTVECT>        PNTVECTVECTOR ;  // vettore di coppie punto, vettore
 typedef std::list<PNTVECT>          PNTVECTLIST ;    // lista di coppie punto, vettore
+
+//----------------------------------------------------------------------------
+// Raccolte di coppie Point3d,Bool
+typedef std::pair<Point3d, bool>  PNTBOOL ;           // coppia punto, bool
+typedef std::vector<PNTBOOL>      PNTBOOLVECTOR ;     // vettore di coppie punto, bool
+typedef std::list<PNTBOOL>        PNTBOOLLIST ;       // lista di coppie punto, bool
+
+//----------------------------------------------------------------------------
+// Raccolte di triplette Point3d,dU,vector<Vector3d>
+typedef std::tuple<Point3d, double, VCT3DVECTOR> PNTUVVECT ;       // tripletta punto, parametro, vettore di Vector3d
+typedef std::vector<PNTUVVECT>                   PNTUVVECTVECTOR ; // vettore di triplette punto, parametro, vettore di Vector3d
+typedef std::list<PNTUVVECT>                     PNTUVVECTLIST ;   // lista di triplette punto, parametro, vettore di Vector3d
diff --git a/EGkSurfTriMesh.h b/EGkSurfTriMesh.h
index bda355e..37e61c7 100644
--- a/EGkSurfTriMesh.h
+++ b/EGkSurfTriMesh.h
@@ -130,6 +130,7 @@ class __declspec( novtable) ISurfTriMesh : public ISurf
       virtual int  GetPartCount( void) const = 0 ;
       virtual bool GetPartArea( int nPart, double& dArea) const = 0 ;
       virtual bool GetPartVolume( int nPart, double& dVolume) const = 0 ;
+      virtual bool GetPartLoops( int nPart, POLYLINEVECTOR& vPL) const = 0 ;
       virtual bool RemovePart( int nPart) = 0 ;
       virtual ISurfTriMesh* ClonePart( int nPart) const = 0 ;
       virtual bool SetTFlag( int nId, int nTFlag) = 0 ;