diff --git a/EGkTriangle3d.h b/EGkTriangle3d.h
index c1b816e..2eb3763 100644
--- a/EGkTriangle3d.h
+++ b/EGkTriangle3d.h
@@ -14,6 +14,8 @@
 #pragma once
 
 #include "/EgtDev/Include/EGkPoint3d.h"
+#include <vector>
+#include <list>
 #include <algorithm>
 
 //-----------------------------------------------------------------------------
@@ -80,6 +82,11 @@ class Triangle3d
       Vector3d vtN ;
 } ;
 
+//----------------------------------------------------------------------------
+// Raccolte di Triangle3d
+typedef std::vector<Triangle3d>  TRIA3DVECTOR ;   // vettore di Triangle3d
+typedef std::list<Triangle3d>    TRIA3DLIST ;     // lista di Triangle3d
+
 //-----------------------------------------------------------------------------
 // Flags indicanti se i lati sono parte del contorno di un poligono di pił triangoli
 class TriFlags3d
@@ -205,4 +212,4 @@ CalcNormal( const Point3d& ptP, const Triangle3d& Tria, const TriNormals3d& Tnor
    vtNorm = dU * Tnorms.vtN[0] + dV * Tnorms.vtN[1] + dW * Tnorms.vtN[2] ;
   // la normalizzo
    return vtNorm.Normalize() ;
-}
\ No newline at end of file
+}
diff --git a/EGkVolZmap.h b/EGkVolZmap.h
index cfcb56c..e423f2c 100644
--- a/EGkVolZmap.h
+++ b/EGkVolZmap.h
@@ -15,6 +15,7 @@
 
 #include "/EgtDev/Include/EGkGeoObj.h"
 #include "/EgtDev/Include/EGkPolyLine.h"
+#include "/EgtDev/Include/EGkTriangle3d.h"
 
 
 //----------------------------------------------------------------------------
@@ -22,6 +23,8 @@ class __declspec( novtable) IVolZmap : public IGeoObj
 {
    public :
       virtual bool CopyFrom( const IGeoObj* pGObjSrc) = 0 ;
+      virtual bool CreateMap( const Point3d& ptO, double dPrec, double dLenX, double dLenY, double dLenZ) = 0 ;
+      virtual bool GetAllTriangles( TRIA3DLIST& lstTria) const = 0 ;
       virtual bool GetDexelLines( int nDir, int nPos1, int nPos2, POLYLINELIST& lstPL) const = 0 ;
 } ;