vtktools.hpp

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/*
 * BELFEM -- The Berkeley Lab Finite Element Framework
 * Copyright (c) 2026, The Regents of the University of California,
 * through Lawrence Berkeley National Laboratory (subject to receipt of any required
 * approvals from the U.S. Dept. of Energy).  All rights reserved.
 *
 * Developers: Christian Messe, Gregory Giard
 *
 * See the top-level LICENSE file for the complete license and disclaimer.
 */
 
#ifndef BELFEM_VTKTOOLS_HPP
#define BELFEM_VTKTOOLS_HPP
 
#include "typedefs.hpp"
#include "cl_Vector.hpp"
#include "cl_Element.hpp"
 
namespace belfem
{
    namespace vtk
    {
//------------------------------------------------------------------------------

        template <typename T> T swap_byte_endian(T aValue)
        {
            T aOutValue;
            auto *tPointer = (char*) & aValue;
            auto *tOutPointer = (char*) & aOutValue;
            int size = sizeof(T);
            for( int i=0; i<size; i++ )
            {
                tOutPointer[size - 1 - i] = tPointer[i];
            }
            return aOutValue;
        }
 
//------------------------------------------------------------------------------

        int
        vtk_type( const ElementType & aElementType );
 
//------------------------------------------------------------------------------

         void
         get_node_ids( mesh::Element * aElement, Vector< id_t > & aNodeIDs );
 
//-----------------------------------------------------------------------------
    }
}
#endif //BELFEM_VTKTOOLS_HPP