de4e840eae
Filters now support executing on a dataset to produce a result dataset with automatic mapping of fields to the output dataset. Fields to map can be selected using `vtkm::filter::FieldSelection` class, which provides constructors to map all or no fields, along with a selection of fields. This updates all tests to use the new filter API.
79 lines
2.7 KiB
C++
79 lines
2.7 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 <vtkm/cont/DataSet.h>
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#include <vtkm/worklet/NDimsEntropy.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 NDEntropy::NDEntropy()
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{
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}
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void NDEntropy::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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template <typename Policy, typename Device>
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inline VTKM_CONT vtkm::filter::Result NDEntropy::DoExecute(
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const vtkm::cont::DataSet& inData,
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vtkm::filter::PolicyBase<Policy> vtkmNotUsed(policy),
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Device device)
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{
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VTKM_IS_DEVICE_ADAPTER_TAG(Device);
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vtkm::worklet::NDimsEntropy ndEntropy;
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ndEntropy.SetNumOfDataPoints(inData.GetField(0).GetData().GetNumberOfValues(), device);
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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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ndEntropy.AddField(inData.GetField(FieldNames[i]).GetData(), NumOfBins[i], device);
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}
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// Run worklet to calculate multi-variate entropy
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vtkm::Float64 entropy = ndEntropy.Run(device);
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vtkm::cont::DataSet outputData;
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outputData.AddField(vtkm::cont::make_Field(
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"Entropy", vtkm::cont::Field::ASSOC_POINTS, &entropy, 1, vtkm::CopyFlag::On));
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//return outputData;
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return vtkm::filter::Result(outputData);
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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 NDEntropy::DoMapField(vtkm::filter::Result&,
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const vtkm::cont::ArrayHandle<T, StorageType>&,
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const vtkm::filter::FieldMetadata&,
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const vtkm::filter::PolicyBase<DerivedPolicy>&,
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DeviceAdapter)
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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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