100 lines
3.2 KiB
C++
100 lines
3.2 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 2016 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2016 UT-Battelle, LLC.
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// Copyright 2016 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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#include <vector>
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#include <vtkm/cont/DataSet.h>
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#include <vtkm/worklet/NDimsHistogram.h>
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namespace vtkm
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{
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namespace filter
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{
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inline VTKM_CONT NDHistogram::NDHistogram()
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{
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}
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void NDHistogram::AddFieldAndBin(const std::string& fieldName, vtkm::Id numOfBins)
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{
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this->FieldNames.push_back(fieldName);
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this->NumOfBins.push_back(numOfBins);
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}
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vtkm::Float64 NDHistogram::GetBinDelta(size_t fieldIdx)
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{
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return BinDeltas[fieldIdx];
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}
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vtkm::Range NDHistogram::GetDataRange(size_t fieldIdx)
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{
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return DataRanges[fieldIdx];
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}
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template <typename Policy>
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inline VTKM_CONT vtkm::cont::DataSet NDHistogram::DoExecute(const vtkm::cont::DataSet& inData,
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vtkm::filter::PolicyBase<Policy> policy)
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{
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vtkm::worklet::NDimsHistogram ndHistogram;
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// Set the number of data points
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ndHistogram.SetNumOfDataPoints(inData.GetField(0).GetNumberOfValues());
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// Add field one by one
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// (By using AddFieldAndBin(), the length of FieldNames and NumOfBins must be the same)
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for (size_t i = 0; i < FieldNames.size(); i++)
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{
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vtkm::Range rangeField;
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vtkm::Float64 deltaField;
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ndHistogram.AddField(vtkm::filter::ApplyPolicy(inData.GetField(FieldNames[i]), policy),
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NumOfBins[i],
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rangeField,
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deltaField);
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DataRanges.push_back(rangeField);
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BinDeltas.push_back(deltaField);
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}
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std::vector<vtkm::cont::ArrayHandle<vtkm::Id>> binIds;
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vtkm::cont::ArrayHandle<vtkm::Id> freqs;
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ndHistogram.Run(binIds, freqs);
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vtkm::cont::DataSet outputData;
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for (size_t i = 0; i < binIds.size(); i++)
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{
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outputData.AddField(
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vtkm::cont::Field(FieldNames[i], vtkm::cont::Field::Association::POINTS, binIds[i]));
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}
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outputData.AddField(
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vtkm::cont::Field("Frequency", vtkm::cont::Field::Association::POINTS, freqs));
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return outputData;
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}
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//-----------------------------------------------------------------------------
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template <typename T, typename StorageType, typename DerivedPolicy>
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inline VTKM_CONT bool NDHistogram::DoMapField(vtkm::cont::DataSet&,
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const vtkm::cont::ArrayHandle<T, StorageType>&,
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const vtkm::filter::FieldMetadata&,
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vtkm::filter::PolicyBase<DerivedPolicy>)
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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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