OpenMesh
OpenMesh/Tools/VDPM/VHierarchyNodeIndex.hh
00001 /*===========================================================================*\
00002  *                                                                           *
00003  *                               OpenMesh                                    *
00004  *      Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen      *
00005  *                           www.openmesh.org                                *
00006  *                                                                           *
00007  *---------------------------------------------------------------------------* 
00008  *  This file is part of OpenMesh.                                           *
00009  *                                                                           *
00010  *  OpenMesh is free software: you can redistribute it and/or modify         * 
00011  *  it under the terms of the GNU Lesser General Public License as           *
00012  *  published by the Free Software Foundation, either version 3 of           *
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00014  *  following exceptions:                                                    *
00015  *                                                                           *
00016  *  If other files instantiate templates or use macros                       *
00017  *  or inline functions from this file, or you compile this file and         *
00018  *  link it with other files to produce an executable, this file does        *
00019  *  not by itself cause the resulting executable to be covered by the        *
00020  *  GNU Lesser General Public License. This exception does not however       *
00021  *  invalidate any other reasons why the executable file might be            *
00022  *  covered by the GNU Lesser General Public License.                        *
00023  *                                                                           *
00024  *  OpenMesh is distributed in the hope that it will be useful,              *
00025  *  but WITHOUT ANY WARRANTY; without even the implied warranty of           *
00026  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            *
00027  *  GNU Lesser General Public License for more details.                      *
00028  *                                                                           *
00029  *  You should have received a copy of the GNU LesserGeneral Public          *
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00032  *                                                                           *
00033 \*===========================================================================*/ 
00034 
00035 /*===========================================================================*\
00036  *                                                                           *             
00037  *   $Revision: 362 $                                                         *
00038  *   $Date: 2011-01-26 10:21:12 +0100 (Mi, 26 Jan 2011) $                   *
00039  *                                                                           *
00040 \*===========================================================================*/
00041 
00042 //=============================================================================
00043 //
00044 //  CLASS newClass
00045 //
00046 //=============================================================================
00047 
00048 #ifndef OPENMESH_VDPROGMESH_VHIERARCHYNODEINDEX_HH
00049 #define OPENMESH_VDPROGMESH_VHIERARCHYNODEINDEX_HH
00050 
00051 //== INCLUDES =================================================================
00052 
00053 #include <vector>
00054 #include <assert.h>
00055 
00056 //== FORWARDDECLARATIONS ======================================================
00057 
00058 
00059 //== NAMESPACES ===============================================================
00060 
00061 namespace OpenMesh {
00062 namespace VDPM {
00063 
00064 //== CLASS DEFINITION =========================================================
00065 
00066               
00071 class VHierarchyNodeIndex
00072 {
00073 private:
00074   unsigned int value_;
00075 
00076 public:
00077 
00078   static const VHierarchyNodeIndex  InvalidIndex;
00079 
00080 public:
00081 
00082   VHierarchyNodeIndex()
00083   { value_ = 0; }
00084   
00085   VHierarchyNodeIndex(unsigned int _value)
00086   { value_ = _value; }
00087 
00088   VHierarchyNodeIndex(const VHierarchyNodeIndex &_other)
00089   { value_ = _other.value_; }
00090 
00091   VHierarchyNodeIndex(unsigned int   _tree_id, 
00092                       unsigned int   _node_id, 
00093                       unsigned short _tree_id_bits)
00094   {
00095     assert(_tree_id < ((unsigned int) 0x00000001 << _tree_id_bits));
00096     assert(_node_id < ((unsigned int) 0x00000001 << (32 - _tree_id_bits)));
00097     value_ = (_tree_id << (32 - _tree_id_bits)) | _node_id;
00098   }
00099 
00100   bool is_valid(unsigned short _tree_id_bits) const
00101   { return  node_id(_tree_id_bits) != 0 ? true : false;  }
00102 
00103   unsigned int tree_id(unsigned short _tree_id_bits) const
00104   { return  value_ >> (32 - _tree_id_bits); }
00105   
00106   unsigned int node_id(unsigned short _tree_id_bits) const
00107   { return  value_ & ((unsigned int) 0xFFFFFFFF >> _tree_id_bits); }
00108 
00109   bool operator< (const VHierarchyNodeIndex &other) const
00110   { return  (value_ < other.value_) ? true : false; }
00111 
00112   unsigned int value() const
00113   { return  value_; }
00114 };
00115 
00116 
00118 typedef std::vector<VHierarchyNodeIndex>    VHierarchyNodeIndexContainer;
00119 
00120 
00121 //=============================================================================
00122 } // namespace VDPM
00123 } // namespace OpenMesh
00124 //=============================================================================
00125 #endif //  OPENMESH_VDPROGMESH_VHIERARCHYNODEINDEX_HH defined
00126 //=============================================================================