mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 02:25:42 +00:00
84 lines
2.6 KiB
C++
84 lines
2.6 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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#ifndef vtk_m_filter_Histogram_h
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#define vtk_m_filter_Histogram_h
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#include <vtkm/filter/FilterField.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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/// \brief Construct the histogram of a given Field
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///
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/// Construct a histogram with a default of 10 bins
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///
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class Histogram : public vtkm::filter::FilterField<Histogram>
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{
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public:
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//Construct a histogram with a default of 10 bins
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VTKM_CONT
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Histogram();
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VTKM_CONT
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void SetNumberOfBins(vtkm::Id count) { this->NumberOfBins = count; }
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VTKM_CONT
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vtkm::Id GetNumberOfBins() const { return this->NumberOfBins; }
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//Returns the bin delta of the last computed field, be it from DoExecute
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//or from MapField
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VTKM_CONT
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vtkm::Float64 GetBinDelta() const { return this->BinDelta; }
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//Returns the the min and max values for that last computed field
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VTKM_CONT
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vtkm::Range GetDataRange() const { return this->DataRange; }
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template <typename T, typename StorageType, typename DerivedPolicy, typename DeviceAdapter>
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VTKM_CONT vtkm::filter::ResultField 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& tag);
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private:
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vtkm::Id NumberOfBins;
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vtkm::Float64 BinDelta;
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vtkm::Range DataRange;
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};
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template <>
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class FilterTraits<Histogram>
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{ //currently the Histogram filter only works on scalar data.
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//this mainly has to do with getting the ranges for each bin
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//would require returning a more complex value type
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public:
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typedef TypeListTagScalarAll InputFieldTypeList;
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};
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}
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} // namespace vtkm::filter
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#include <vtkm/filter/Histogram.hxx>
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#endif // vtk_m_filter_Histogram_h
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