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During the VTK-m 1.8 and 1.9 development, the filter infrastructure was overhauled. Part of this created a completely new set of base classes. To avoid confusion with the original filter base classes and ease transition, the new filter base classes were named `NewFilter*`. Eventually after all filters were transitioned, the old filter base classes were deprecated. With the release of VTK-m 2.0, the old filter base classes are removed. The "new" filter base classes are no longer new. Thus, they have been renamed simply `Filter` (and `FilterField`).
85 lines
2.9 KiB
C++
85 lines
2.9 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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//
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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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#ifndef vtk_m_examples_histogram_HistogramMPI_h
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#define vtk_m_examples_histogram_HistogramMPI_h
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#include <vtkm/filter/FilterField.h>
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namespace example
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{
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/// \brief Construct the HistogramMPI of a given Field
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///
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/// Construct a HistogramMPI with a default of 10 bins.
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///
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class HistogramMPI : public vtkm::filter::FilterField
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{
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public:
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//currently the HistogramMPI 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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using SupportedTypes = vtkm::TypeListScalarAll;
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//Construct a HistogramMPI with a default of 10 bins
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VTKM_CONT
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HistogramMPI() { this->SetOutputFieldName("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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///@{
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/// Get/Set the range to use to generate the HistogramMPI. If range is set to
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/// empty, the field's global range (computed using `vtkm::cont::FieldRangeGlobalCompute`)
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/// will be used.
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VTKM_CONT
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void SetRange(const vtkm::Range& range) { this->Range = range; }
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VTKM_CONT
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const vtkm::Range& GetRange() const { return this->Range; }
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///@}
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/// Returns the bin delta of the last computed field.
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VTKM_CONT
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vtkm::Float64 GetBinDelta() const { return this->BinDelta; }
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/// Returns the range used for most recent execute. If `SetRange` is used to
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/// specify and non-empty range, then this will be same as the range after
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/// the `Execute` call.
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VTKM_CONT
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vtkm::Range GetComputedRange() const { return this->ComputedRange; }
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protected:
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VTKM_CONT vtkm::cont::DataSet DoExecute(const vtkm::cont::DataSet& input) override;
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VTKM_CONT vtkm::cont::PartitionedDataSet DoExecutePartitions(
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const vtkm::cont::PartitionedDataSet& input) override;
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///@{
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/// when operating on vtkm::cont::PartitionedDataSet, we
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/// want to do processing across ranks as well. Just adding pre/post handles
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/// for the same does the trick.
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VTKM_CONT void PreExecute(const vtkm::cont::PartitionedDataSet& input);
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VTKM_CONT void PostExecute(const vtkm::cont::PartitionedDataSet& input,
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vtkm::cont::PartitionedDataSet& output);
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///@}
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private:
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vtkm::Id NumberOfBins = 10;
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vtkm::Float64 BinDelta = 0;
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vtkm::Range ComputedRange;
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vtkm::Range Range;
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bool InExecutePartitions = false;
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};
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} // namespace example
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#endif // vtk_m_filter_Histogram_h
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