diff --git a/EGkIntersLineCylinder.h b/EGkIntersLineCylinder.h
new file mode 100644
index 0000000..f484fe3
--- /dev/null
+++ b/EGkIntersLineCylinder.h
@@ -0,0 +1,31 @@
+//----------------------------------------------------------------------------
+//  EgalTech 2015-2015
+//----------------------------------------------------------------------------
+// File : EGkIntersLineCylinder.h      Data : 08.06.26         Versione : 3.1f1
+// Contenuto : Dichiarazione della classe intersezione linea/cilindro.
+//
+//
+//
+// Modifiche : 08.06.26 DB Creazione modulo.
+//
+//
+//----------------------------------------------------------------------------
+
+#pragma once
+
+#include "/EgtDev/Include/EGkPoint3d.h"
+#include "/EgtDev/Include/EGkVector3d.h"
+#include "/EgtDev/Include/EGkFrame3d.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
+
+// restituisce true se trova delle soluzioni, altrimenti false
+//-----------------------------------------------------------------------------
+EGK_EXPORT bool IntersLineCyl( const Point3d& ptLineSt, const Vector3d& vtLineDir, const Frame3d& CylFrame, double dH, double dRad,
+                               double& dU1, Point3d& ptInt1, Vector3d& vtN1, double& dU2, Point3d& ptInt2, Vector3d& vtN2) ;