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openmesh/src/OpenMesh/Tools/VDPM/VHierarchyNodeIndex.hh
2021-04-13 10:09:31 +02:00

126 lines
5.3 KiB
C++

/* ========================================================================= *
* *
* OpenMesh *
* Copyright (c) 2001-2015, RWTH-Aachen University *
* Department of Computer Graphics and Multimedia *
* All rights reserved. *
* www.openmesh.org *
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*---------------------------------------------------------------------------*
* This file is part of OpenMesh. *
*---------------------------------------------------------------------------*
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* 2. Redistributions in binary form must reproduce the above copyright *
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* documentation and/or other materials provided with the distribution. *
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* ========================================================================= */
//=============================================================================
//
// CLASS newClass
//
//=============================================================================
#ifndef OPENMESH_VDPROGMESH_VHIERARCHYNODEINDEX_HH
#define OPENMESH_VDPROGMESH_VHIERARCHYNODEINDEX_HH
//== INCLUDES =================================================================
#include <vector>
#include <cassert>
//== FORWARDDECLARATIONS ======================================================
//== NAMESPACES ===============================================================
namespace OpenMesh {
namespace VDPM {
//== CLASS DEFINITION =========================================================
/** Index of vertex hierarchy node
*/
class VHierarchyNodeIndex
{
private:
unsigned int value_;
public:
static const VHierarchyNodeIndex InvalidIndex;
public:
VHierarchyNodeIndex()
{ value_ = 0; }
explicit VHierarchyNodeIndex(unsigned int _value)
{ value_ = _value; }
VHierarchyNodeIndex(unsigned int _tree_id,
unsigned int _node_id,
unsigned short _tree_id_bits)
{
assert(_tree_id < ((unsigned int) 0x00000001 << _tree_id_bits));
assert(_node_id < ((unsigned int) 0x00000001 << (32 - _tree_id_bits)));
value_ = (_tree_id << (32 - _tree_id_bits)) | _node_id;
}
bool is_valid(unsigned short _tree_id_bits) const
{ return node_id(_tree_id_bits) != 0 ? true : false; }
unsigned int tree_id(unsigned short _tree_id_bits) const
{ return value_ >> (32 - _tree_id_bits); }
unsigned int node_id(unsigned short _tree_id_bits) const
{ return value_ & ((unsigned int) 0xFFFFFFFF >> _tree_id_bits); }
bool operator< (const VHierarchyNodeIndex &other) const
{ return (value_ < other.value_) ? true : false; }
unsigned int value() const
{ return value_; }
};
/// Container for vertex hierarchy node indices
typedef std::vector<VHierarchyNodeIndex> VHierarchyNodeIndexContainer;
//=============================================================================
} // namespace VDPM
} // namespace OpenMesh
//=============================================================================
#endif // OPENMESH_VDPROGMESH_VHIERARCHYNODEINDEX_HH defined
//=============================================================================