026fd14ba6
- MeshQuality now throws ErrorCode messages Signed-off-by: Vicente Adolfo Bolea Sanchez <vicente.bolea@kitware.com>
146 lines
5.5 KiB
C++
146 lines
5.5 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_cellmetrics_CellShearMetric_h
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#define vtk_m_worklet_cellmetrics_CellShearMetric_h
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/*
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* Mesh quality metric function that computes the shear of a cell. The shear is
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* defined as the minimum of areas of the faces divided by the length of the
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* indexed face multiplied by the index - 1 mod num_faces.
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*
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* These metric computations are adapted from the VTK implementation of the
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* Verdict library, which provides a set of mesh/cell metrics for evaluating the
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* geometric qualities of regions of mesh spaces.
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*
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* See: The Verdict Library Reference Manual (for per-cell-type metric formulae)
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* See: vtk/ThirdParty/verdict/vtkverdict (for VTK code implementation of this
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* metric)
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*/
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#include "TypeOfCellHexahedral.h"
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#include "TypeOfCellQuadrilateral.h"
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#include "vtkm/CellShape.h"
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#include "vtkm/CellTraits.h"
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#include "vtkm/VecTraits.h"
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#include "vtkm/VectorAnalysis.h"
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#include "vtkm/exec/FunctorBase.h"
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#define UNUSED(expr) (void)(expr);
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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 cellmetrics
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{
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// ========================= Unsupported cells ==================================
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// By default, cells have zero shape unless the shape type template is specialized below.
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template <typename OutType, typename PointCoordVecType, typename CellShapeType>
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VTKM_EXEC OutType CellShearMetric(const vtkm::IdComponent& numPts,
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const PointCoordVecType& pts,
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CellShapeType shape,
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vtkm::ErrorCode&)
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{
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UNUSED(numPts);
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UNUSED(pts);
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UNUSED(shape);
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return OutType(-1.0);
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}
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// ========================= 2D cells ==================================
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template <typename OutType, typename PointCoordVecType>
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VTKM_EXEC OutType CellShearMetric(const vtkm::IdComponent& numPts,
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const PointCoordVecType& pts,
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vtkm::CellShapeTagQuad,
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vtkm::ErrorCode& ec)
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{
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if (numPts != 4)
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{
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ec = vtkm::ErrorCode::InvalidNumberOfPoints;
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return OutType(0.0);
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}
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using Scalar = OutType;
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using CollectionOfPoints = PointCoordVecType;
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using Vector = typename PointCoordVecType::ComponentType;
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const Scalar alpha0 = GetQuadAlpha0<Scalar, Vector, CollectionOfPoints>(pts);
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const Scalar alpha1 = GetQuadAlpha1<Scalar, Vector, CollectionOfPoints>(pts);
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const Scalar alpha2 = GetQuadAlpha2<Scalar, Vector, CollectionOfPoints>(pts);
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const Scalar alpha3 = GetQuadAlpha3<Scalar, Vector, CollectionOfPoints>(pts);
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const Scalar L0 = GetQuadL0Magnitude<Scalar, Vector, CollectionOfPoints>(pts);
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const Scalar L1 = GetQuadL1Magnitude<Scalar, Vector, CollectionOfPoints>(pts);
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const Scalar L2 = GetQuadL2Magnitude<Scalar, Vector, CollectionOfPoints>(pts);
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const Scalar L3 = GetQuadL3Magnitude<Scalar, Vector, CollectionOfPoints>(pts);
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const Scalar x0 = alpha0 / (L0 * L3);
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const Scalar x1 = alpha1 / (L1 * L0);
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const Scalar x2 = alpha2 / (L2 * L1);
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const Scalar x3 = alpha3 / (L3 * L2);
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const Scalar q = vtkm::Min(x0, vtkm::Min(x1, vtkm::Min(x2, x3)));
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return q;
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}
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// ========================= 3D cells ==================================
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template <typename OutType, typename PointCoordVecType>
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VTKM_EXEC OutType CellShearMetric(const vtkm::IdComponent& numPts,
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const PointCoordVecType& pts,
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vtkm::CellShapeTagHexahedron,
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vtkm::ErrorCode& ec)
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{
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if (numPts != 8)
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{
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ec = vtkm::ErrorCode::InvalidNumberOfPoints;
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return OutType(-1.0);
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}
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using Scalar = OutType;
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using CollectionOfPoints = PointCoordVecType;
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using Vector = typename PointCoordVecType::ComponentType;
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const Scalar a0 = GetHexAlphaiHat<Scalar, Vector, CollectionOfPoints>(pts, vtkm::Id(0));
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const Scalar a1 = GetHexAlphaiHat<Scalar, Vector, CollectionOfPoints>(pts, vtkm::Id(1));
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const Scalar a2 = GetHexAlphaiHat<Scalar, Vector, CollectionOfPoints>(pts, vtkm::Id(2));
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const Scalar a3 = GetHexAlphaiHat<Scalar, Vector, CollectionOfPoints>(pts, vtkm::Id(3));
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const Scalar a4 = GetHexAlphaiHat<Scalar, Vector, CollectionOfPoints>(pts, vtkm::Id(4));
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const Scalar a5 = GetHexAlphaiHat<Scalar, Vector, CollectionOfPoints>(pts, vtkm::Id(5));
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const Scalar a6 = GetHexAlphaiHat<Scalar, Vector, CollectionOfPoints>(pts, vtkm::Id(6));
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const Scalar a7 = GetHexAlphaiHat<Scalar, Vector, CollectionOfPoints>(pts, vtkm::Id(7));
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const Scalar q = vtkm::Min(
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a0,
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vtkm::Min(a1, vtkm::Min(a2, vtkm::Min(a3, vtkm::Min(a4, vtkm::Min(a5, vtkm::Min(a6, a7)))))));
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return q;
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}
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} // namespace cellmetrics
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} // namespace worklet
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} // namespace vtkm
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#endif // vtk_m_worklet_cellmetrics_CellEdgeRatioMetric_h
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