130 lines
4.5 KiB
C++
130 lines
4.5 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 2018 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2018 UT-Battelle, LLC.
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// Copyright 2018 Los Alamos National Security.
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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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_MeshQuality_h
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#define vtk_m_worklet_MeshQuality_h
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#include "vtkm/exec/CellMeasure.h"
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#include "vtkm/exec/cellmetrics/CellDiagonalRatioMetric.h"
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#include "vtkm/exec/cellmetrics/CellEdgeRatioMetric.h"
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#include "vtkm/exec/cellmetrics/CellJacobianMetric.h"
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#include "vtkm/worklet/WorkletMapTopology.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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/**
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* Worklet that computes mesh quality metric values for each cell in
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* the input mesh. A metric is specified per cell type in the calling filter,
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* and this metric is invoked over all cells of that cell type. An array of
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* the computed metric values (one per cell) is returned as output.
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*/
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template <typename MetricTagType>
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class MeshQuality : public vtkm::worklet::WorkletVisitCellsWithPoints
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{
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public:
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using ControlSignature = void(CellSetIn cellset,
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FieldInPoint pointCoords,
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FieldOutCell metricOut);
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using ExecutionSignature = void(CellShape, PointCount, _2, _3);
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using InputDomain = _1;
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void SetMetric(MetricTagType m) { metric = m; }
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template <typename CellShapeType, typename PointCoordVecType, typename OutType>
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VTKM_EXEC void operator()(CellShapeType shape,
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const vtkm::IdComponent& numPoints,
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//const CountsArrayType& counts,
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//const MetricsArrayType& metrics,
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//MetricTagType metric,
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const PointCoordVecType& pts,
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OutType& metricValue) const
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{
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vtkm::UInt8 thisId = shape.Id;
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if (shape.Id == vtkm::CELL_SHAPE_POLYGON)
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{
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if (numPoints == 3)
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thisId = vtkm::CELL_SHAPE_TRIANGLE;
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else if (numPoints == 4)
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thisId = vtkm::CELL_SHAPE_QUAD;
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}
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switch (thisId)
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{
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vtkmGenericCellShapeMacro(metricValue =
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this->ComputeMetric<OutType>(numPoints, pts, CellShapeTag()));
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default:
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this->RaiseError("Asked for metric of unknown cell type.");
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metricValue = OutType(0.0);
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}
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}
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protected:
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// data member
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MetricTagType metric;
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template <typename OutType, typename PointCoordVecType, typename CellShapeType>
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VTKM_EXEC OutType ComputeMetric(const vtkm::IdComponent& numPts,
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const PointCoordVecType& pts,
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CellShapeType tag) const
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{
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constexpr vtkm::IdComponent dims = vtkm::CellTraits<CellShapeType>::TOPOLOGICAL_DIMENSIONS;
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//Only compute the metric for 2D and 3D shapes; return 0 otherwise
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OutType metricValue = OutType(0.0);
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if (dims > 0)
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{
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switch (metric)
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{
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case MetricTagType::DIAGONAL_RATIO:
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metricValue =
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vtkm::exec::cellmetrics::CellDiagonalRatioMetric<OutType>(numPts, pts, tag, *this);
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break;
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/* DEPRECATING
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case MetricTagType::EDGE_RATIO:
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metricValue =
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vtkm::exec::cellmetrics::CellEdgeRatioMetric<OutType>(numPts, pts, tag, *this);
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break;
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*/
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case MetricTagType::JACOBIAN:
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metricValue =
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vtkm::exec::cellmetrics::CellJacobianMetric<OutType>(numPts, pts, tag, *this);
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break;
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case MetricTagType::VOLUME:
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metricValue = vtkm::exec::CellMeasure<OutType>(numPts, pts, tag, *this);
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break;
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case MetricTagType::EMPTY:
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break;
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default:
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//Only call metric function if a metric is specified for this shape type
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this->RaiseError("Asked for unknown metric.");
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}
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}
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return metricValue;
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}
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};
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} // namespace worklet
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} // namespace vtkm
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#endif // vtk_m_worklet_MeshQuality_h
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