1cc855abec
Refs #157.
151 lines
4.8 KiB
C++
151 lines
4.8 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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#include <vtkm/cont/ArrayHandleCounting.h>
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#include <vtkm/cont/ArrayHandlePermutation.h>
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#include <vtkm/cont/CellSetPermutation.h>
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#include <vtkm/cont/DynamicCellSet.h>
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#include <vtkm/worklet/DispatcherMapTopology.h>
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namespace
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{
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class ThresholdRange
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{
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public:
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VTKM_CONT
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ThresholdRange(const vtkm::Float64& lower, const vtkm::Float64& upper)
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: Lower(lower)
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, Upper(upper)
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{
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}
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template <typename T>
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VTKM_EXEC bool operator()(const T& value) const
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{
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return value >= static_cast<T>(this->Lower) && value <= static_cast<T>(this->Upper);
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}
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private:
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vtkm::Float64 Lower;
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vtkm::Float64 Upper;
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};
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template <typename ValueType, typename StorageTag, typename DeviceTag>
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struct CallWorklet
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{
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vtkm::cont::DynamicCellSet& Output;
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vtkm::worklet::Threshold& Worklet;
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const vtkm::cont::ArrayHandle<ValueType, StorageTag>& Field;
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const vtkm::cont::Field::AssociationEnum FieldType;
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const ThresholdRange& Predicate;
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CallWorklet(vtkm::cont::DynamicCellSet& output,
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vtkm::worklet::Threshold& worklet,
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const vtkm::cont::ArrayHandle<ValueType, StorageTag>& field,
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const vtkm::cont::Field::AssociationEnum fieldType,
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const ThresholdRange& predicate)
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: Output(output)
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, Worklet(worklet)
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, Field(field)
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, FieldType(fieldType)
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, Predicate(predicate)
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{
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}
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template <typename CellSetType>
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void operator()(const CellSetType& cellSet) const
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{
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this->Output =
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this->Worklet.Run(cellSet, this->Field, this->FieldType, this->Predicate, DeviceTag());
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}
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};
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} // end anon namespace
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namespace vtkm
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{
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namespace filter
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{
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//-----------------------------------------------------------------------------
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inline VTKM_CONT Threshold::Threshold()
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: vtkm::filter::FilterDataSetWithField<Threshold>()
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, LowerValue(0)
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, UpperValue(0)
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{
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}
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//-----------------------------------------------------------------------------
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template <typename T, typename StorageType, typename DerivedPolicy, typename DeviceAdapter>
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inline VTKM_CONT vtkm::filter::ResultDataSet Threshold::DoExecute(
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const vtkm::cont::DataSet& input,
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const vtkm::cont::ArrayHandle<T, StorageType>& field,
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const vtkm::filter::FieldMetadata& fieldMeta,
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const vtkm::filter::PolicyBase<DerivedPolicy>& policy,
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const DeviceAdapter&)
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{
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using Worker = CallWorklet<T, StorageType, DeviceAdapter>;
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//get the cells and coordinates of the dataset
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const vtkm::cont::DynamicCellSet& cells = input.GetCellSet(this->GetActiveCellSetIndex());
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vtkm::cont::DynamicCellSet cellOut;
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ThresholdRange predicate(this->GetLowerThreshold(), this->GetUpperThreshold());
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Worker worker(cellOut, this->Worklet, field, fieldMeta.GetAssociation(), predicate);
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vtkm::filter::ApplyPolicy(cells, policy).CastAndCall(worker);
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vtkm::cont::DataSet output;
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output.AddCoordinateSystem(input.GetCoordinateSystem(this->GetActiveCoordinateSystemIndex()));
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output.AddCellSet(worker.Output);
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return output;
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}
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//-----------------------------------------------------------------------------
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template <typename T, typename StorageType, typename DerivedPolicy, typename DeviceAdapter>
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inline VTKM_CONT bool Threshold::DoMapField(vtkm::filter::ResultDataSet& result,
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const vtkm::cont::ArrayHandle<T, StorageType>& input,
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const vtkm::filter::FieldMetadata& fieldMeta,
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const vtkm::filter::PolicyBase<DerivedPolicy>&,
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const DeviceAdapter& device)
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{
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if (fieldMeta.IsPointField())
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{
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//we copy the input handle to the result dataset, reusing the metadata
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result.GetDataSet().AddField(fieldMeta.AsField(input));
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return true;
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}
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else if (fieldMeta.IsCellField())
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{
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vtkm::cont::ArrayHandle<T> out = this->Worklet.ProcessCellField(input, device);
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result.GetDataSet().AddField(fieldMeta.AsField(out));
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return true;
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}
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else
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{
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return false;
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}
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}
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}
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}
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