426 lines
12 KiB
C++
426 lines
12 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 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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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-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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#ifndef vtk_m_cont_Field_h
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#define vtk_m_cont_Field_h
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#include <vtkm/cont/vtkm_cont_export.h>
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#include <vtkm/Range.h>
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#include <vtkm/Types.h>
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/cont/ArrayPortalToIterators.h>
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#include <vtkm/cont/ArrayRangeCompute.h>
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#include <vtkm/cont/DynamicArrayHandle.h>
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namespace vtkm
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{
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namespace cont
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{
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namespace internal
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{
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class ComputeRange
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{
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public:
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ComputeRange(ArrayHandle<vtkm::Range>& range)
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: Range(&range)
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{
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}
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template <typename ArrayHandleType>
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void operator()(const ArrayHandleType& input) const
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{
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*this->Range = vtkm::cont::ArrayRangeCompute(input);
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}
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private:
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vtkm::cont::ArrayHandle<vtkm::Range>* Range;
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};
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} // namespace internal
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/// A \c Field encapsulates an array on some piece of the mesh, such as
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/// the points, a cell set, a point logical dimension, or the whole mesh.
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///
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class VTKM_CONT_EXPORT Field
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{
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public:
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enum struct Association
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{
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ANY,
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WHOLE_MESH,
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POINTS,
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CELL_SET,
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LOGICAL_DIM
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};
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VTKM_CONT
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Field() = default;
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/// constructors for points / whole mesh
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VTKM_CONT
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Field(std::string name, Association association, const vtkm::cont::DynamicArrayHandle& data);
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template <typename T, typename Storage>
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VTKM_CONT Field(std::string name, Association association, const ArrayHandle<T, Storage>& data)
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: Field(name, association, vtkm::cont::DynamicArrayHandle{ data })
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{
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}
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/// constructors for cell set associations
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VTKM_CONT
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Field(std::string name,
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Association association,
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const std::string& cellSetName,
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const vtkm::cont::DynamicArrayHandle& data);
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template <typename T, typename Storage>
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VTKM_CONT Field(std::string name,
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Association association,
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const std::string& cellSetName,
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const vtkm::cont::ArrayHandle<T, Storage>& data)
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: Field(name, association, cellSetName, vtkm::cont::DynamicArrayHandle{ data })
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{
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}
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/// constructors for logical dimension associations
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VTKM_CONT
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Field(std::string name,
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Association association,
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vtkm::IdComponent logicalDim,
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const vtkm::cont::DynamicArrayHandle& data);
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template <typename T, typename Storage>
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VTKM_CONT Field(std::string name,
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Association association,
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vtkm::IdComponent logicalDim,
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const vtkm::cont::ArrayHandle<T, Storage>& data)
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: Field(name, association, logicalDim, vtkm::cont::DynamicArrayHandle{ data })
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{
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}
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VTKM_CONT
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virtual ~Field();
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VTKM_CONT
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Field& operator=(const vtkm::cont::Field& src) = default;
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VTKM_CONT
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const std::string& GetName() const { return this->Name; }
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VTKM_CONT
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Association GetAssociation() const { return this->FieldAssociation; }
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VTKM_CONT
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std::string GetAssocCellSet() const { return this->AssocCellSetName; }
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VTKM_CONT
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vtkm::IdComponent GetAssocLogicalDim() const { return this->AssocLogicalDim; }
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template <typename TypeList, typename StorageList>
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VTKM_CONT const vtkm::cont::ArrayHandle<vtkm::Range>& GetRange(TypeList, StorageList) const
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{
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VTKM_IS_LIST_TAG(TypeList);
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VTKM_IS_LIST_TAG(StorageList);
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return this->GetRangeImpl(TypeList(), StorageList());
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}
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VTKM_CONT
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const vtkm::cont::ArrayHandle<vtkm::Range>& GetRange(VTKM_DEFAULT_TYPE_LIST_TAG,
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VTKM_DEFAULT_STORAGE_LIST_TAG) const;
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template <typename TypeList, typename StorageList>
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VTKM_CONT void GetRange(vtkm::Range* range, TypeList, StorageList) const
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{
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VTKM_IS_LIST_TAG(TypeList);
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VTKM_IS_LIST_TAG(StorageList);
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this->GetRange(TypeList(), StorageList());
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vtkm::Id length = this->Range.GetNumberOfValues();
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for (vtkm::Id i = 0; i < length; ++i)
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{
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range[i] = this->Range.GetPortalConstControl().Get(i);
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}
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}
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template <typename TypeList>
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VTKM_CONT const vtkm::cont::ArrayHandle<vtkm::Range>& GetRange(TypeList) const
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{
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VTKM_IS_LIST_TAG(TypeList);
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return this->GetRange(TypeList(), VTKM_DEFAULT_STORAGE_LIST_TAG());
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}
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template <typename TypeList>
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VTKM_CONT void GetRange(vtkm::Range* range, TypeList) const
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{
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VTKM_IS_LIST_TAG(TypeList);
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this->GetRange(range, TypeList(), VTKM_DEFAULT_STORAGE_LIST_TAG());
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}
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VTKM_CONT
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const vtkm::cont::ArrayHandle<vtkm::Range>& GetRange() const;
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VTKM_CONT
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void GetRange(vtkm::Range* range) const;
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const vtkm::cont::DynamicArrayHandle& GetData() const;
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vtkm::cont::DynamicArrayHandle& GetData();
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template <typename T, typename StorageTag>
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VTKM_CONT void SetData(const vtkm::cont::ArrayHandle<T, StorageTag>& newdata)
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{
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this->Data = newdata;
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this->ModifiedFlag = true;
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}
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VTKM_CONT
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void SetData(const vtkm::cont::DynamicArrayHandle& newdata)
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{
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this->Data = newdata;
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this->ModifiedFlag = true;
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}
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template <typename T>
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VTKM_CONT void CopyData(const T* ptr, vtkm::Id nvals)
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{
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this->Data = vtkm::cont::make_ArrayHandle(ptr, nvals, true);
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this->ModifiedFlag = true;
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}
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VTKM_CONT
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virtual void PrintSummary(std::ostream& out) const;
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VTKM_CONT
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virtual void ReleaseResourcesExecution()
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{
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// TODO: Call ReleaseResourcesExecution on the data when
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// the DynamicArrayHandle class is able to do so.
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this->Range.ReleaseResourcesExecution();
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}
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private:
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std::string Name; ///< name of field
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Association FieldAssociation = Association::ANY;
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std::string AssocCellSetName; ///< only populate if assoc is cells
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vtkm::IdComponent AssocLogicalDim; ///< only populate if assoc is logical dim
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vtkm::cont::DynamicArrayHandle Data;
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mutable vtkm::cont::ArrayHandle<vtkm::Range> Range;
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mutable bool ModifiedFlag = true;
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template <typename TypeList, typename StorageList>
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VTKM_CONT const vtkm::cont::ArrayHandle<vtkm::Range>& GetRangeImpl(TypeList, StorageList) const
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{
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VTKM_IS_LIST_TAG(TypeList);
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VTKM_IS_LIST_TAG(StorageList);
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if (this->ModifiedFlag)
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{
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internal::ComputeRange computeRange(this->Range);
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this->Data.ResetTypeAndStorageLists(TypeList(), StorageList()).CastAndCall(computeRange);
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this->ModifiedFlag = false;
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}
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return this->Range;
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}
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};
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template <typename Functor, typename... Args>
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void CastAndCall(const vtkm::cont::Field& field, Functor&& f, Args&&... args)
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{
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field.GetData().CastAndCall(std::forward<Functor>(f), std::forward<Args>(args)...);
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}
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//@{
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/// Convenience functions to build fields from C style arrays and std::vector
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template <typename T>
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vtkm::cont::Field make_Field(std::string name,
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Field::Association association,
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const T* data,
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vtkm::Id size,
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vtkm::CopyFlag copy = vtkm::CopyFlag::Off)
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{
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return vtkm::cont::Field(name, association, vtkm::cont::make_ArrayHandle(data, size, copy));
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}
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template <typename T>
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vtkm::cont::Field make_Field(std::string name,
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Field::Association association,
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const std::vector<T>& data,
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vtkm::CopyFlag copy = vtkm::CopyFlag::Off)
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{
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return vtkm::cont::Field(name, association, vtkm::cont::make_ArrayHandle(data, copy));
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}
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template <typename T>
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vtkm::cont::Field make_Field(std::string name,
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Field::Association association,
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const std::string& cellSetName,
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const T* data,
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vtkm::Id size,
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vtkm::CopyFlag copy = vtkm::CopyFlag::Off)
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{
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return vtkm::cont::Field(
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name, association, cellSetName, vtkm::cont::make_ArrayHandle(data, size, copy));
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}
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template <typename T>
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vtkm::cont::Field make_Field(std::string name,
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Field::Association association,
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const std::string& cellSetName,
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const std::vector<T>& data,
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vtkm::CopyFlag copy = vtkm::CopyFlag::Off)
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{
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return vtkm::cont::Field(
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name, association, cellSetName, vtkm::cont::make_ArrayHandle(data, copy));
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}
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template <typename T>
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vtkm::cont::Field make_Field(std::string name,
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Field::Association association,
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vtkm::IdComponent logicalDim,
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const T* data,
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vtkm::Id size,
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vtkm::CopyFlag copy = vtkm::CopyFlag::Off)
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{
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return vtkm::cont::Field(
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name, association, logicalDim, vtkm::cont::make_ArrayHandle(data, size, copy));
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}
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template <typename T>
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vtkm::cont::Field make_Field(std::string name,
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Field::Association association,
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vtkm::IdComponent logicalDim,
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const std::vector<T>& data,
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vtkm::CopyFlag copy = vtkm::CopyFlag::Off)
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{
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return vtkm::cont::Field(name, association, logicalDim, vtkm::cont::make_ArrayHandle(data, copy));
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}
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//@}
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namespace internal
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{
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template <>
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struct DynamicTransformTraits<vtkm::cont::Field>
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{
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using DynamicTag = vtkm::cont::internal::DynamicTransformTagCastAndCall;
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};
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} // namespace internal
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} // namespace cont
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} // namespace vtkm
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//=============================================================================
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// Specializations of serialization related classes
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namespace vtkm
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{
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namespace cont
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{
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template <typename TypeList = VTKM_DEFAULT_TYPE_LIST_TAG,
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typename StorageList = VTKM_DEFAULT_STORAGE_LIST_TAG>
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struct SerializableField
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{
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SerializableField() = default;
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explicit SerializableField(const vtkm::cont::Field& field)
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: Field(field)
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{
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}
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vtkm::cont::Field Field;
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};
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}
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} // vtkm::cont
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namespace diy
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{
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template <typename TypeList, typename StorageList>
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struct Serialization<vtkm::cont::SerializableField<TypeList, StorageList>>
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{
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private:
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using Type = vtkm::cont::SerializableField<TypeList, StorageList>;
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public:
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static VTKM_CONT void save(BinaryBuffer& bb, const Type& serializable)
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{
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const auto& field = serializable.Field;
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diy::save(bb, field.GetName());
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diy::save(bb, static_cast<int>(field.GetAssociation()));
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if (field.GetAssociation() == vtkm::cont::Field::Association::CELL_SET)
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{
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diy::save(bb, field.GetAssocCellSet());
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}
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else if (field.GetAssociation() == vtkm::cont::Field::Association::LOGICAL_DIM)
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{
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diy::save(bb, field.GetAssocLogicalDim());
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}
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diy::save(bb, field.GetData().ResetTypeAndStorageLists(TypeList{}, StorageList{}));
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}
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static VTKM_CONT void load(BinaryBuffer& bb, Type& serializable)
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{
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auto& field = serializable.Field;
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std::string name;
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diy::load(bb, name);
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int assocVal = 0;
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diy::load(bb, assocVal);
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auto assoc = static_cast<vtkm::cont::Field::Association>(assocVal);
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vtkm::cont::DynamicArrayHandleBase<TypeList, StorageList> data;
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if (assoc == vtkm::cont::Field::Association::CELL_SET)
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{
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std::string assocCellSetName;
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diy::load(bb, assocCellSetName);
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diy::load(bb, data);
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field =
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vtkm::cont::Field(name, assoc, assocCellSetName, vtkm::cont::DynamicArrayHandle(data));
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}
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else if (assoc == vtkm::cont::Field::Association::LOGICAL_DIM)
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{
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vtkm::IdComponent assocLogicalDim;
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diy::load(bb, assocLogicalDim);
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diy::load(bb, data);
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field = vtkm::cont::Field(name, assoc, assocLogicalDim, vtkm::cont::DynamicArrayHandle(data));
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}
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else
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{
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diy::load(bb, data);
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field = vtkm::cont::Field(name, assoc, vtkm::cont::DynamicArrayHandle(data));
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}
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}
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};
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} // diy
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#endif //vtk_m_cont_Field_h
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