NektarUnivConsts.hpp

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///////////////////////////////////////////////////////////////////////////////
//
// File: NektarUnivConsts.hpp
//
// For more information, please see: http://www.nektar.info
//
// The MIT License
//
// Copyright (c) 2006 Scientific Computing and Imaging Institute,
// University of Utah (USA) and Department of Aeronautics, Imperial
// College London (UK).
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
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// Description: Universal constants in the Nektar Library
//
///////////////////////////////////////////////////////////////////////////////
 
#ifndef NEKTARUNIVCONSTS_HPP
#define NEKTARUNIVCONSTS_HPP
 
#include <limits>
 
#include <LibUtilities/BasicConst/NektarUnivTypeDefs.hpp>
 
namespace Nektar::NekConstants
{
static const NekDouble kNekUnsetDouble = -9999;
 
// Tolerances
static const NekDouble kVertexTheSameDouble = 1.0e-08;
static const NekDouble kGeomFactorsTol      = 1.0e-08;
static const NekDouble kNekZeroTol          = 1.0e-12;
static const NekDouble kNekIterativeTol     = 1.0e-09;
static const NekDouble kNekMachineEpsilon =
    std::numeric_limits<NekDouble>::epsilon();
static const NekDouble kNekSparseNonZeroTol = kNekMachineEpsilon;
 
// Tolerances for mesh generation and CAD handling
static const NekDouble GeomTol = 1.0e-02;
static const NekDouble CoinTol = 1.0e-06;
 
// Factor for tolerance for floating point comparison
static const unsigned int kNekFloatCompFact = 4;
 
// Constants for minimisation functions
static const NekDouble kFindDistanceMin     = 5e-05;
static const unsigned int kNewtonIterations = 51;
} // namespace Nektar::NekConstants
 
#endif