61 lines
1.9 KiB
C++
61 lines
1.9 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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//
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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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#ifndef vtk_m_worklet_gradient_CellGradient_h
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#define vtk_m_worklet_gradient_CellGradient_h
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#include <vtkm/exec/CellDerivative.h>
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#include <vtkm/exec/ParametricCoordinates.h>
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#include <vtkm/worklet/WorkletMapTopology.h>
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#include <vtkm/worklet/gradient/GradientOutput.h>
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namespace vtkm
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{
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namespace worklet
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{
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namespace gradient
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{
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template <typename T>
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using CellGradientInType = vtkm::List<T>;
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template <typename T>
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struct CellGradient : vtkm::worklet::WorkletVisitCellsWithPoints
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{
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using ControlSignature = void(CellSetIn,
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FieldInPoint pointCoordinates,
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FieldInPoint inputField,
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GradientOutputs outputFields);
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using ExecutionSignature = void(CellShape, PointCount, _2, _3, _4);
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using InputDomain = _1;
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template <typename CellTagType,
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typename PointCoordVecType,
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typename FieldInVecType,
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typename GradientOutType>
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VTKM_EXEC void operator()(CellTagType shape,
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vtkm::IdComponent pointCount,
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const PointCoordVecType& wCoords,
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const FieldInVecType& field,
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GradientOutType& outputGradient) const
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{
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vtkm::Vec3f center = vtkm::exec::ParametricCoordinatesCenter(pointCount, shape, *this);
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outputGradient = vtkm::exec::CellDerivative(field, wCoords, center, shape, *this);
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}
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};
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}
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}
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}
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#endif
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