diff --git a/EGkFilletChamfer.h b/EGkFilletChamfer.h
new file mode 100644
index 0000000..77878ab
--- /dev/null
+++ b/EGkFilletChamfer.h
@@ -0,0 +1,35 @@
+//----------------------------------------------------------------------------
+//  EgalTech 2015-2015
+//----------------------------------------------------------------------------
+// File : EGkFilletChamfer.h       Data : 19.03.15       Versione : 1.6c4
+// Contenuto : Dichiarazione funzioni per calcolo fillet e chamfer.
+//
+//
+//
+// Modifiche : 19.03.15 DS Creazione modulo.
+//
+//
+//----------------------------------------------------------------------------
+
+#pragma once
+
+#include "/EgtDev/Include/EGkCurveLine.h"
+#include "/EgtDev/Include/EGkCurveArc.h"
+
+
+//----------------------- Macro per import/export ----------------------------
+#undef EGK_EXPORT
+#if defined( I_AM_EGK)            // da definirsi solo nella DLL
+   #define EGK_EXPORT __declspec( dllexport)
+#else
+   #define EGK_EXPORT __declspec( dllimport)
+#endif
+
+//----------------------------------------------------------------------------
+EGK_EXPORT ICurveArc* CreateFillet( const ICurve& cCrv1, const Point3d& ptNear1,
+                                    const ICurve& cCrv2, const Point3d& ptNear2,
+                                    const Vector3d& vtNorm, double dRadius, double& dPar1, double& dPar2) ;
+EGK_EXPORT ICurveLine* CreateChamfer( const ICurve& cCrv1, const Point3d& ptNear1,
+                                      const ICurve& cCrv2, const Point3d& ptNear2,
+                                      const Vector3d& vtNorm, double dDist, double& dPar1, double& dPar2) ;
+
diff --git a/EInAPI.h b/EInAPI.h
index c87f382..b25d6b9 100644
--- a/EInAPI.h
+++ b/EInAPI.h
@@ -138,6 +138,12 @@ EIN_EXPORT int  __stdcall EgtCreateCurveArc2PVN( int nParentId, const double ptS
 EIN_EXPORT int  __stdcall EgtCreateCurveArc2PVNEx( int nParentId, const double ptStart[3],
                                                    const double ptEnd[3], int nSep, int nId,
                                                    const double vtDirS[3], const double vtNorm[3], int nRefType) ;
+EIN_EXPORT int  __stdcall EgtCreateCurveFillet( int nParentId, int nCrv1, const double ptNear1[3],
+                                                int nCrv2, const double ptNear2[3],
+                                                const double vtNorm[3], double dRad, BOOL bTrim, int nRefType) ;
+EIN_EXPORT int  __stdcall EgtCreateCurveChamfer( int nParentId, int nCrv1, const double ptNear1[3],
+                                                 int nCrv2, const double ptNear2[3],
+                                                 const double vtNorm[3], double dDist, BOOL bTrim, int nRefType) ;
 EIN_EXPORT int  __stdcall EgtCreateCurveBezier( int nParentId, int nDegree,
                                                 const double ptCtrls[/*3x(nDegree+1)*/], int nRefType) ;
 EIN_EXPORT int  __stdcall EgtCreateCurveBezierRational( int nParentId, int nDegree,
diff --git a/EgkCurve.h b/EgkCurve.h
index e54f9b7..deea843 100644
--- a/EgkCurve.h
+++ b/EgkCurve.h
@@ -62,6 +62,8 @@ class __declspec( novtable) ICurve : public IGeoObj
       virtual bool GetPointTang( double dU, Side nS, Point3d& ptPos, Vector3d& vtTang) const = 0 ;
       virtual bool GetPointDiffGeom( double dU, Side nS, CrvPointDiffGeom& oDiffG) const = 0 ;
       virtual bool IsPointOn( const Point3d& ptP, double dTol = EPS_SMALL) const = 0 ;
+      virtual bool GetParamAtPoint( const Point3d& ptP, double& dPar, double dTol = EPS_SMALL) const = 0 ;
+      virtual bool GetLengthAtPoint( const Point3d& ptP, double& dLen, double dTol = EPS_SMALL) const = 0 ;
       virtual bool ApproxWithLines( double dLinTol, double dAngTolDeg, PolyLine& PL) const = 0 ;
       virtual bool ApproxWithArcs( double dLinTol, double dAngTolDeg, PolyArc& PA) const = 0 ;
       virtual ICurve* CopyParamRange( double dUStart, double dUEnd) const = 0 ;