diff --git a/EMkSimuGenConst.h b/EMkSimuGenConst.h
index 36a6fd2..2ea3dbd 100644
--- a/EMkSimuGenConst.h
+++ b/EMkSimuGenConst.h
@@ -1,7 +1,7 @@
 //----------------------------------------------------------------------------
 //  EgalTech 2015-2019
 //----------------------------------------------------------------------------
-// File : EmkSimuGenConst.h     Data : 04.04.19      Versione : 2.1d1
+// File : EmkSimuGenConst.h     Data : 05.08.19      Versione : 2.1h1
 // Contenuto : Costanti per simulazione e generazione.      
 //
 //
@@ -30,6 +30,12 @@ enum SimUiStat { MCH_UISIM_NULL = 0,
                  MCH_UISIM_STEP = 3,
                  MCH_UISIM_PAUSE = 4} ;
 
+//------------------------ Tipi di oggetti per test collisione ----------------
+enum SimCollObjType { MCH_SIM_COB_NULL = 0,
+                      MCH_SIM_COB_BOX = 1,
+                      MCH_SIM_COB_CYL = 2,
+                      MCH_SIM_COB_SPHE = 3} ;
+
 //------------------------ Stato di visualizzazione della macchina ------------
 enum MachLook { MCH_LOOK_NONE = -1,
                 MCH_LOOK_TAB = 0,
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 54402cf..869607b 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -516,8 +516,8 @@ EXE_EXPORT bool ExeVolZmapMillingStep( int nId, const Point3d& ptPs, const Vecto
 EXE_EXPORT bool ExeVolZmapGetDepth( int nId, const Point3d& ptP, const Vector3d& vtDir, int nRefType, bool bExact,
                                     double& dInLen, double& dOutLen) ;
 EXE_EXPORT bool ExeVolZmapAvoidBox( int nId, const Frame3d& frBox, const Vector3d& vtDiag, double dSafeDist, int nRefType) ;
-EXE_EXPORT bool ExeVolZmapAvoidSphere( int nId, const Point3d& ptCen, double dRad, double dSafeDist, int nRefType) ;
 EXE_EXPORT bool ExeVolZmapAvoidCylinder( int nId, const Frame3d& frCyl, double dL, double dR, double dSafeDist, int nRefType) ;
+EXE_EXPORT bool ExeVolZmapAvoidSphere( int nId, const Point3d& ptCen, double dRad, double dSafeDist, int nRefType) ;
 EXE_EXPORT bool ExeCutVolZmapPlane( int nId, const Point3d& ptOn, const Vector3d& vtN, int nRefType) ;
 
 // Geo Snap Vector/Point/Frame