vtk-m2/vtkm/worklet/gradient/QCriterion.h
Kenneth Moreland c3a3184d51 Update copyright for Sandia
Sandia National Laboratories recently changed management from the
Sandia Corporation to the National Technology & Engineering Solutions
of Sandia, LLC (NTESS). The copyright statements need to be updated
accordingly.
2017-09-20 15:33:44 -06:00

56 lines
1.8 KiB
C++

//============================================================================
// Copyright (c) Kitware, Inc.
// All rights reserved.
// See LICENSE.txt for details.
// This software is distributed WITHOUT ANY WARRANTY; without even
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
// PURPOSE. See the above copyright notice for more information.
//
// Copyright 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
// Copyright 2014 UT-Battelle, LLC.
// Copyright 2014 Los Alamos National Security.
//
// Under the terms of Contract DE-NA0003525 with NTESS,
// the U.S. Government retains certain rights in this software.
//
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
// Laboratory (LANL), the U.S. Government retains certain rights in
// this software.
//============================================================================
#ifndef vtk_m_worklet_gradient_QCriterion_h
#define vtk_m_worklet_gradient_QCriterion_h
#include <vtkm/worklet/WorkletMapField.h>
namespace vtkm
{
namespace worklet
{
namespace gradient
{
struct QCriterionTypes : vtkm::ListTagBase<vtkm::Vec<vtkm::Vec<vtkm::Float32, 3>, 3>,
vtkm::Vec<vtkm::Vec<vtkm::Float64, 3>, 3>>
{
};
struct QCriterion : public vtkm::worklet::WorkletMapField
{
typedef void ControlSignature(FieldIn<QCriterionTypes> input, FieldOut<Scalar> output);
typedef void ExecutionSignature(_1, _2);
typedef _1 InputDomain;
template <typename InputType, typename OutputType>
VTKM_EXEC void operator()(const InputType& input, OutputType& qcriterion) const
{
qcriterion =
-(input[0][0] * input[0][0] + input[1][1] * input[1][1] + input[2][2] * input[2][2]) / 2 -
(input[1][0] * input[0][1] + input[2][0] * input[0][2] + input[2][1] * input[1][2]);
}
};
}
}
}
#endif