mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-20 02:55:47 +00:00
c55d15f397
The newer version of `ArrayHandle` no longer supports different types of portals for different devices. Thus, the `ReadPortalType` and `WritePortalType` are sufficient for all types of portals across all devices. This significantly simplifies supporting execution objects on devices, and thus this change also includes many changes to various execution objects to remove their dependence on the device adapter tag.
141 lines
4.8 KiB
C++
141 lines
4.8 KiB
C++
//============================================================================
|
|
// Copyright (c) Kitware, Inc.
|
|
// All rights reserved.
|
|
// See LICENSE.txt for details.
|
|
//
|
|
// This software is distributed WITHOUT ANY WARRANTY; without even
|
|
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
// PURPOSE. See the above copyright notice for more information.
|
|
//============================================================================
|
|
|
|
#ifndef vtk_m_worklet_TetrahedralizeExplicit_h
|
|
#define vtk_m_worklet_TetrahedralizeExplicit_h
|
|
|
|
#include <vtkm/cont/ArrayHandle.h>
|
|
#include <vtkm/cont/ArrayHandleGroupVec.h>
|
|
#include <vtkm/cont/CellSetExplicit.h>
|
|
#include <vtkm/cont/DataSet.h>
|
|
#include <vtkm/cont/Field.h>
|
|
|
|
#include <vtkm/worklet/DispatcherMapField.h>
|
|
#include <vtkm/worklet/DispatcherMapTopology.h>
|
|
#include <vtkm/worklet/ScatterCounting.h>
|
|
#include <vtkm/worklet/WorkletMapField.h>
|
|
#include <vtkm/worklet/WorkletMapTopology.h>
|
|
|
|
#include <vtkm/worklet/internal/TriangulateTables.h>
|
|
|
|
namespace vtkm
|
|
{
|
|
namespace worklet
|
|
{
|
|
|
|
/// \brief Compute the tetrahedralize cells for an explicit grid data set
|
|
class TetrahedralizeExplicit
|
|
{
|
|
public:
|
|
TetrahedralizeExplicit() {}
|
|
|
|
//
|
|
// Worklet to count the number of tetrahedra generated per cell
|
|
//
|
|
class TetrahedraPerCell : public vtkm::worklet::WorkletMapField
|
|
{
|
|
public:
|
|
using ControlSignature = void(FieldIn shapes, ExecObject tables, FieldOut tetrahedronCount);
|
|
using ExecutionSignature = _3(_1, _2);
|
|
using InputDomain = _1;
|
|
|
|
VTKM_CONT
|
|
TetrahedraPerCell() {}
|
|
|
|
VTKM_EXEC vtkm::IdComponent operator()(
|
|
vtkm::UInt8 shape,
|
|
const vtkm::worklet::internal::TetrahedralizeTablesExecutionObject& tables) const
|
|
{
|
|
return tables.GetCount(vtkm::CellShapeTagGeneric(shape));
|
|
}
|
|
};
|
|
|
|
//
|
|
// Worklet to turn cells into tetrahedra
|
|
// Vertices remain the same and each cell is processed with needing topology
|
|
//
|
|
class TetrahedralizeCell : public vtkm::worklet::WorkletVisitCellsWithPoints
|
|
{
|
|
public:
|
|
using ControlSignature = void(CellSetIn cellset,
|
|
ExecObject tables,
|
|
FieldOutCell connectivityOut);
|
|
using ExecutionSignature = void(CellShape, PointIndices, _2, _3, VisitIndex);
|
|
using InputDomain = _1;
|
|
|
|
using ScatterType = vtkm::worklet::ScatterCounting;
|
|
|
|
template <typename CellArrayType>
|
|
VTKM_CONT static ScatterType MakeScatter(const CellArrayType& cellArray)
|
|
{
|
|
return ScatterType(cellArray);
|
|
}
|
|
|
|
// Each cell produces tetrahedra and write result at the offset
|
|
template <typename CellShapeTag, typename ConnectivityInVec, typename ConnectivityOutVec>
|
|
VTKM_EXEC void operator()(
|
|
CellShapeTag shape,
|
|
const ConnectivityInVec& connectivityIn,
|
|
const vtkm::worklet::internal::TetrahedralizeTablesExecutionObject& tables,
|
|
ConnectivityOutVec& connectivityOut,
|
|
vtkm::IdComponent visitIndex) const
|
|
{
|
|
vtkm::IdComponent4 tetIndices = tables.GetIndices(shape, visitIndex);
|
|
connectivityOut[0] = connectivityIn[tetIndices[0]];
|
|
connectivityOut[1] = connectivityIn[tetIndices[1]];
|
|
connectivityOut[2] = connectivityIn[tetIndices[2]];
|
|
connectivityOut[3] = connectivityIn[tetIndices[3]];
|
|
}
|
|
};
|
|
|
|
template <typename CellSetType>
|
|
vtkm::cont::CellSetSingleType<> Run(
|
|
const CellSetType& vtkmNotUsed(cellSet),
|
|
vtkm::cont::ArrayHandle<vtkm::IdComponent>& vtkmNotUsed(outCellsPerCell))
|
|
{
|
|
return vtkm::cont::CellSetSingleType<>();
|
|
}
|
|
|
|
vtkm::cont::CellSetSingleType<> Run(const vtkm::cont::CellSetExplicit<>& cellSet,
|
|
vtkm::cont::ArrayHandle<vtkm::IdComponent>& outCellsPerCell)
|
|
{
|
|
vtkm::cont::CellSetSingleType<> outCellSet;
|
|
|
|
// Input topology
|
|
auto inShapes =
|
|
cellSet.GetShapesArray(vtkm::TopologyElementTagCell(), vtkm::TopologyElementTagPoint());
|
|
auto inNumIndices =
|
|
cellSet.GetNumIndicesArray(vtkm::TopologyElementTagCell(), vtkm::TopologyElementTagPoint());
|
|
|
|
// Output topology
|
|
vtkm::cont::ArrayHandle<vtkm::Id> outConnectivity;
|
|
|
|
vtkm::worklet::internal::TetrahedralizeTables tables;
|
|
|
|
// Determine the number of output cells each input cell will generate
|
|
vtkm::worklet::DispatcherMapField<TetrahedraPerCell> tetPerCellDispatcher;
|
|
tetPerCellDispatcher.Invoke(inShapes, tables.PrepareForInput(), outCellsPerCell);
|
|
|
|
// Build new cells
|
|
vtkm::worklet::DispatcherMapTopology<TetrahedralizeCell> tetrahedralizeDispatcher(
|
|
TetrahedralizeCell::MakeScatter(outCellsPerCell));
|
|
tetrahedralizeDispatcher.Invoke(
|
|
cellSet, tables.PrepareForInput(), vtkm::cont::make_ArrayHandleGroupVec<4>(outConnectivity));
|
|
|
|
// Add cells to output cellset
|
|
outCellSet.Fill(cellSet.GetNumberOfPoints(), vtkm::CellShapeTagTetra::Id, 4, outConnectivity);
|
|
return outCellSet;
|
|
}
|
|
};
|
|
}
|
|
} // namespace vtkm::worklet
|
|
|
|
#endif // vtk_m_worklet_TetrahedralizeExplicit_h
|