#include <vtkImplicitBoolean.h>
#include <vtkImplicitFunctionCollection.h>
-#include <vtkConfigure.h>
-#if !defined(VTK_XVERSION)
-#define VTK_XVERSION (VTK_MAJOR_VERSION<<16)+(VTK_MINOR_VERSION<<8)+(VTK_BUILD_VERSION)
-#endif
-
#include "utilities.h"
#ifdef _DEBUG_