fdaccc22db
Change the VTKM_CONT_EXPORT to VTKM_CONT. (Likewise for EXEC and EXEC_CONT.) Remove the inline from these macros so that they can be applied to everything, including implementations in a library. Because inline is not declared in these modifies, you have to add the keyword to functions and methods where the implementation is not inlined in the class.
182 lines
6.3 KiB
C++
182 lines
6.3 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 2015 Sandia Corporation.
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// Copyright 2015 UT-Battelle, LLC.
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// Copyright 2015 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_TetrahedralizeExplicitGrid_h
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#define vtk_m_worklet_TetrahedralizeExplicitGrid_h
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/cont/ArrayHandleGroupVec.h>
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#include <vtkm/cont/CellSetExplicit.h>
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#include <vtkm/cont/DataSet.h>
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#include <vtkm/cont/DeviceAdapter.h>
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#include <vtkm/cont/DynamicArrayHandle.h>
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#include <vtkm/cont/Field.h>
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#include <vtkm/worklet/DispatcherMapField.h>
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#include <vtkm/worklet/DispatcherMapTopology.h>
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#include <vtkm/worklet/ScatterCounting.h>
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#include <vtkm/worklet/WorkletMapField.h>
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#include <vtkm/worklet/WorkletMapTopology.h>
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#include <vtkm/worklet/internal/TriangulateTables.h>
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namespace vtkm {
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namespace worklet {
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/// \brief Compute the tetrahedralize cells for an explicit grid data set
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template <typename DeviceAdapter>
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class TetrahedralizeFilterExplicitGrid
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{
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public:
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//
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// Worklet to count the number of tetrahedra generated per cell
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//
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class TetrahedraPerCell : public vtkm::worklet::WorkletMapField
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{
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public:
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typedef void ControlSignature(FieldIn<> shapes,
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ExecObject tables,
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FieldOut<> tetrahedronCount);
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typedef _3 ExecutionSignature(_1, _2);
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typedef _1 InputDomain;
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VTKM_CONT
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TetrahedraPerCell() {}
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VTKM_EXEC
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vtkm::IdComponent operator()(
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vtkm::UInt8 shape,
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const vtkm::worklet::internal::TetrahedralizeTablesExecutionObject<DeviceAdapter> &tables) const
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{
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return tables.GetCount(vtkm::CellShapeTagGeneric(shape));
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}
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};
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//
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// Worklet to turn cells into tetrahedra
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// Vertices remain the same and each cell is processed with needing topology
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//
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class TetrahedralizeCell : public vtkm::worklet::WorkletMapPointToCell
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{
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public:
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typedef void ControlSignature(CellSetIn cellset,
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ExecObject tables,
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FieldOutCell<> connectivityOut);
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typedef void ExecutionSignature(CellShape, PointIndices, _2, _3, VisitIndex);
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typedef _1 InputDomain;
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typedef vtkm::worklet::ScatterCounting ScatterType;
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VTKM_CONT
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ScatterType GetScatter() const
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{
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return this->Scatter;
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}
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template<typename CellArrayType>
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VTKM_CONT
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TetrahedralizeCell(const CellArrayType &cellArray)
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: Scatter(cellArray, DeviceAdapter())
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{ }
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// Each cell produces tetrahedra and write result at the offset
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template<typename CellShapeTag,
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typename ConnectivityInVec,
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typename ConnectivityOutVec>
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VTKM_EXEC
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void operator()(CellShapeTag shape,
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const ConnectivityInVec &connectivityIn,
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const vtkm::worklet::internal::TetrahedralizeTablesExecutionObject<DeviceAdapter> &tables,
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ConnectivityOutVec &connectivityOut,
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vtkm::IdComponent visitIndex) const
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{
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vtkm::Vec<vtkm::IdComponent,4> tetIndices =
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tables.GetIndices(shape, visitIndex);
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connectivityOut[0] = connectivityIn[tetIndices[0]];
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connectivityOut[1] = connectivityIn[tetIndices[1]];
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connectivityOut[2] = connectivityIn[tetIndices[2]];
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connectivityOut[3] = connectivityIn[tetIndices[3]];
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}
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private:
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ScatterType Scatter;
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};
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//
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// Construct the filter to tetrahedralize explicit grid
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//
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TetrahedralizeFilterExplicitGrid(const vtkm::cont::DataSet &inDataSet,
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vtkm::cont::DataSet &outDataSet) :
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InDataSet(inDataSet),
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OutDataSet(outDataSet)
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{}
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vtkm::cont::DataSet InDataSet; // input dataset with structured cell set
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vtkm::cont::DataSet OutDataSet; // output dataset with explicit cell set
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//
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// Populate the output dataset with tetrahedra based on input explicit dataset
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//
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void Run()
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{
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// Cell sets belonging to input and output datasets
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vtkm::cont::CellSetExplicit<> inCellSet;
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InDataSet.GetCellSet(0).CopyTo(inCellSet);
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vtkm::cont::CellSetSingleType<> &cellSet =
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this->OutDataSet.GetCellSet(0).template Cast<vtkm::cont::CellSetSingleType<> >();
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// Input topology
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vtkm::cont::ArrayHandle<vtkm::UInt8> inShapes = inCellSet.GetShapesArray(
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vtkm::TopologyElementTagPoint(), vtkm::TopologyElementTagCell());
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vtkm::cont::ArrayHandle<vtkm::IdComponent> inNumIndices = inCellSet.GetNumIndicesArray(
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vtkm::TopologyElementTagPoint(), vtkm::TopologyElementTagCell());
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// Output topology
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vtkm::cont::ArrayHandle<vtkm::Id> outConnectivity;
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vtkm::worklet::internal::TetrahedralizeTables tables;
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// Determine the number of output cells each input cell will generate
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vtkm::cont::ArrayHandle<vtkm::IdComponent> numOutCellArray;
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vtkm::worklet::DispatcherMapField<TetrahedraPerCell,DeviceAdapter>
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tetPerCellDispatcher;
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tetPerCellDispatcher.Invoke(inShapes,
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tables.PrepareForInput(DeviceAdapter()),
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numOutCellArray);
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// Build new cells
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TetrahedralizeCell tetrahedralizeWorklet(numOutCellArray);
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vtkm::worklet::DispatcherMapTopology<TetrahedralizeCell,DeviceAdapter>
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tetrahedralizeDispatcher(tetrahedralizeWorklet);
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tetrahedralizeDispatcher.Invoke(
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inCellSet,
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tables.PrepareForInput(DeviceAdapter()),
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vtkm::cont::make_ArrayHandleGroupVec<4>(outConnectivity));
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// Add cells to output cellset
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cellSet.Fill(outConnectivity);
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}
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};
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}
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} // namespace vtkm::worklet
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#endif // vtk_m_worklet_TetrahedralizeExplicitGrid_h
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