First checkin for OpenMesh 2.0
git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@2 fdac6126-5c0c-442c-9429-916003d36597
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Core/IO/OMFormatT.cc
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224
Core/IO/OMFormatT.cc
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//=============================================================================
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//
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// OpenMesh
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// Copyright (C) 2003 by Computer Graphics Group, RWTH Aachen
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// www.openmesh.org
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//
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//-----------------------------------------------------------------------------
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//
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// License
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//
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// This library is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation, version 2.1.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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//-----------------------------------------------------------------------------
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//
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// $Revision: 1801 $
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// $Date: 2008-05-19 11:53:56 +0200 (Mon, 19 May 2008) $
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//
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//=============================================================================
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//=============================================================================
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//
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// Helper Functions for binary reading / writing
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//
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//=============================================================================
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#define OPENMESH_IO_OMFORMAT_CC
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//== INCLUDES =================================================================
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#include <OpenMesh/Core/IO/OMFormat.hh>
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#include <algorithm>
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#include <iomanip>
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//== NAMESPACES ===============================================================
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namespace OpenMesh {
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namespace IO {
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// helper to store a an integer
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template< typename T >
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size_t
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store( std::ostream& _os,
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const T& _val,
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OMFormat::Chunk::Integer_Size _b,
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bool _swap,
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t_signed)
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{
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assert( OMFormat::is_integer( _val ) );
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switch( _b )
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{
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case OMFormat::Chunk::Integer_8:
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{
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OMFormat::int8 v = static_cast<OMFormat::int8>(_val);
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return store( _os, v, _swap );
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}
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case OMFormat::Chunk::Integer_16:
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{
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OMFormat::int16 v = static_cast<OMFormat::int16>(_val);
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return store( _os, v, _swap );
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}
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case OMFormat::Chunk::Integer_32:
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{
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OMFormat::int32 v = static_cast<OMFormat::int32>(_val);
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return store( _os, v, _swap );
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}
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case OMFormat::Chunk::Integer_64:
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{
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OMFormat::int64 v = static_cast<OMFormat::int64>(_val);
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return store( _os, v, _swap );
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}
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}
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return 0;
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}
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// helper to store a an unsigned integer
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template< typename T >
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size_t
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store( std::ostream& _os,
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const T& _val,
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OMFormat::Chunk::Integer_Size _b,
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bool _swap,
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t_unsigned)
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{
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assert( OMFormat::is_integer( _val ) );
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switch( _b )
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{
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case OMFormat::Chunk::Integer_8:
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{
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OMFormat::uint8 v = static_cast<OMFormat::uint8>(_val);
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return store( _os, v, _swap );
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}
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case OMFormat::Chunk::Integer_16:
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{
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OMFormat::uint16 v = static_cast<OMFormat::uint16>(_val);
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return store( _os, v, _swap );
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}
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case OMFormat::Chunk::Integer_32:
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{
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OMFormat::uint32 v = static_cast<OMFormat::uint32>(_val);
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return store( _os, v, _swap );
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}
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case OMFormat::Chunk::Integer_64:
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{
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OMFormat::uint64 v = static_cast<OMFormat::uint64>(_val);
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return store( _os, v, _swap );
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}
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}
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return 0;
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}
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// helper to store a an integer
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template< typename T >
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size_t
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restore( std::istream& _is,
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T& _val,
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OMFormat::Chunk::Integer_Size _b,
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bool _swap,
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t_signed)
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{
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assert( OMFormat::is_integer( _val ) );
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size_t bytes = 0;
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switch( _b )
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{
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case OMFormat::Chunk::Integer_8:
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{
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OMFormat::int8 v;
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bytes = restore( _is, v, _swap );
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_val = static_cast<T>(v);
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break;
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}
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case OMFormat::Chunk::Integer_16:
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{
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OMFormat::int16 v;
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bytes = restore( _is, v, _swap );
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_val = static_cast<T>(v);
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}
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case OMFormat::Chunk::Integer_32:
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{
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OMFormat::int32 v;
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bytes = restore( _is, v, _swap );
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_val = static_cast<T>(v);
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}
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case OMFormat::Chunk::Integer_64:
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{
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OMFormat::int64 v;
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bytes = restore( _is, v, _swap );
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_val = static_cast<T>(v);
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}
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}
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return bytes;
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}
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// helper to store a an unsigned integer
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template< typename T >
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size_t
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restore( std::istream& _is,
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T& _val,
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OMFormat::Chunk::Integer_Size _b,
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bool _swap,
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t_unsigned)
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{
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assert( OMFormat::is_integer( _val ) );
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size_t bytes = 0;
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switch( _b )
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{
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case OMFormat::Chunk::Integer_8:
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{
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OMFormat::uint8 v;
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bytes = restore( _is, v, _swap );
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_val = static_cast<T>(v);
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break;
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}
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case OMFormat::Chunk::Integer_16:
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{
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OMFormat::uint16 v;
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bytes = restore( _is, v, _swap );
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_val = static_cast<T>(v);
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break;
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}
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case OMFormat::Chunk::Integer_32:
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{
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OMFormat::uint32 v;
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bytes = restore( _is, v, _swap );
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_val = static_cast<T>(v);
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break;
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}
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case OMFormat::Chunk::Integer_64:
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{
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OMFormat::uint64 v;
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bytes = restore( _is, v, _swap );
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_val = static_cast<T>(v);
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break;
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}
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}
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return bytes;
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}
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//=============================================================================
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} // namespace IO
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} // namespace OpenMesh
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//=============================================================================
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