82 lines
2.8 KiB
C++
82 lines
2.8 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2014 Sandia Corporation.
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2014 Los Alamos National Security.
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//
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// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#ifndef vtk_m_worklet_Vorticity_h
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#define vtk_m_worklet_Vorticity_h
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#include <vtkm/worklet/WorkletMapField.h>
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namespace vtkm {
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namespace worklet {
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struct VorticityInputTypes
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: vtkm::ListTagBase<
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vtkm::Vec< vtkm::Vec<vtkm::Float32,3>, 3>,
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vtkm::Vec< vtkm::Vec<vtkm::Float64,3>, 3>
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> { };
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struct Vorticity : public vtkm::worklet::WorkletMapField
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{
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typedef void ControlSignature(FieldIn<VorticityInputTypes> input,
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FieldOut<Vec3> output);
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typedef void ExecutionSignature(_1,_2);
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typedef _1 InputDomain;
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template<typename InputType, typename OutputType>
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VTKM_EXEC
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void operator()(const InputType &input, OutputType &vorticity) const
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{
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vorticity[0] = input[2][1] - input[1][2];
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vorticity[1] = input[0][2] - input[2][0];
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vorticity[2] = input[1][0] - input[0][1];
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}
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};
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struct QCriterion : public vtkm::worklet::WorkletMapField
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{
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typedef void ControlSignature(FieldIn<VorticityInputTypes> input,
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FieldOut<Scalar> output);
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typedef void ExecutionSignature(_1,_2);
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typedef _1 InputDomain;
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template<typename InputType, typename OutputType>
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VTKM_EXEC
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void operator()(const InputType &input, OutputType &qcriterion) const
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{
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OutputType t1 =
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((input[2][1] - input[1][2]) * (input[2][1] - input[1][2]) +
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(input[1][0] - input[0][1]) * (input[1][0] - input[0][1]) +
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(input[0][2] - input[2][0]) * (input[0][2] - input[2][0])) / 2.0f;
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OutputType t2 =
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input[0][0] * input[0][0] + input[1][1] * input[1][1] +
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input[2][2] * input[2][2] +
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((input[1][0] + input[0][1]) * (input[1][0] + input[0][1]) +
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(input[2][0] + input[0][2]) * (input[2][0] + input[0][2]) +
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(input[2][1] + input[1][2]) * (input[2][1] + input[1][2])) / 2.0f;
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qcriterion = (t1 - t2) / 2.0f;
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}
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};
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}
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} // namespace vtkm::worklet
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#endif |