mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-20 11:05:44 +00:00
65 lines
2.3 KiB
C++
65 lines
2.3 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 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/worklet/DispatcherMapField.h>
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#include <vtkm/worklet/FieldEntropy.h>
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namespace vtkm {
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namespace filter {
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//-----------------------------------------------------------------------------
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inline VTKM_CONT
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Entropy::Entropy():
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NumberOfBins(10)
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{
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this->SetOutputFieldName("entropy");
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}
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//-----------------------------------------------------------------------------
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template<typename T,
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typename StorageType,
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typename DerivedPolicy,
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typename DeviceAdapter>
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inline VTKM_CONT
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vtkm::filter::ResultField
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Entropy::DoExecute(const vtkm::cont::DataSet &inDataSet,
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const vtkm::cont::ArrayHandle<T,StorageType> &field,
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const vtkm::filter::FieldMetadata &fieldMetadata,
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const vtkm::filter::PolicyBase<DerivedPolicy>&,
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const DeviceAdapter& device)
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{
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vtkm::worklet::FieldEntropy worklet;
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vtkm::Float64 e = worklet.Run(field, this->NumberOfBins, device);
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//the entropy vector only contain one element, the entorpy of the input field
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vtkm::cont::ArrayHandle<vtkm::Float64> entropy;
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entropy.Allocate(1);
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entropy.GetPortalControl().Set(0, e);
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return vtkm::filter::ResultField(inDataSet,
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entropy,
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this->GetOutputFieldName(),
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fieldMetadata.GetAssociation(),
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fieldMetadata.GetCellSetName());
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}
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}
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} // namespace vtkm::filter
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