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diff --git a/Carpet/CarpetLib/src/dggh.hh b/Carpet/CarpetLib/src/dggh.hh
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+/***************************************************************************
+                dggh.hh  -  Dimension Generic Grid Hierarchy
+		bounding boxes for each multigrid level of each
+		component of each refinement level
+                             -------------------
+    begin                : Sun Jun 10 2001
+    copyright            : (C) 2001 by Erik Schnetter
+    email                : schnetter@astro.psu.edu
+
+    $Header: /home/eschnett/C/carpet/Carpet/Carpet/CarpetLib/src/Attic/dggh.hh,v 1.1 2001/06/12 14:56:58 schnetter Exp $
+
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef DGGH_HH
+#define DGGH_HH
+
+#include <assert.h>
+
+#include <iostream>
+#include <list>
+
+#include "defs.hh"
+#include "dist.hh"
+
+using namespace std;
+
+
+
+// Forward declaration
+class dimgeneric_dh;
+class dimgeneric_gh;
+class th;
+
+// Output
+ostream& operator<< (ostream& os, const dimgeneric_gh& h);
+
+
+
+// A refinement hierarchy, where higher levels are finer than the base
+// level.  The extents do not include ghost zones.
+class dimgeneric_gh {
+  
+public:				// should be readonly
+  
+  // Fields
+  int reffact;			// refinement factor
+  centering refcent;		// vertex or cell centered
+  
+  int mgfact;			// default multigrid factor
+  centering mgcent;		// default (vertex or cell centered)
+  
+  list<th*> ths;		// list of all time hierarchies
+  
+public:
+  
+  // Constructors
+  dimgeneric_gh (const int reffact, const centering refcent,
+		 const int mgfact, const centering mgcent);
+  
+  // Destructors
+  virtual ~dimgeneric_gh ();
+  
+  // Accessors
+  virtual int reflevels () const = 0;
+  virtual int components (const int rl) const = 0;
+  virtual int mglevels (const int rl, const int c) const = 0;
+  virtual int proc (const int rl, const int c) const = 0;
+  virtual bool is_local (const int rl, const int c) const = 0;
+  
+  // Time hierarchy management
+  void add (th* t);
+  void remove (th* t);
+  
+  // Output
+  virtual ostream& output (ostream& os) const = 0;
+};
+
+
+
+inline ostream& operator<< (ostream& os, const dimgeneric_gh& h) {
+  return h.output(os);
+}
+
+
+
+#if defined(TMPL_IMPLICIT)
+#  include "dggh.cc"
+#endif
+
+#endif // DGGH_HH