bddad9b386
Now that the dispatcher does its own TryExecute, filters do not need to do that. This change requires all worklets called by filters to be able to execute without knowing the device a priori.
131 lines
4.5 KiB
C++
131 lines
4.5 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 vtkm_m_worklet_ExtractPoints_h
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#define vtkm_m_worklet_ExtractPoints_h
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#include <vtkm/worklet/DispatcherMapTopology.h>
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#include <vtkm/worklet/WorkletMapTopology.h>
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#include <vtkm/cont/Algorithm.h>
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#include <vtkm/cont/ArrayCopy.h>
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/cont/CoordinateSystem.h>
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#include <vtkm/cont/DataSet.h>
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#include <vtkm/cont/ImplicitFunctionHandle.h>
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namespace vtkm
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{
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namespace worklet
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{
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class ExtractPoints
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{
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public:
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struct BoolType : vtkm::ListTagBase<bool>
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{
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};
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////////////////////////////////////////////////////////////////////////////////////
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// Worklet to identify points within volume of interest
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class ExtractPointsByVOI : public vtkm::worklet::WorkletMapCellToPoint
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{
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public:
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using ControlSignature = void(CellSetIn cellset,
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FieldInPoint<Vec3> coordinates,
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ExecObject function,
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FieldOutPoint<BoolType> passFlags);
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using ExecutionSignature = _4(_2, _3);
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VTKM_CONT
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ExtractPointsByVOI(bool extractInside)
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: passValue(extractInside)
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, failValue(!extractInside)
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{
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}
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VTKM_EXEC
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bool operator()(const vtkm::Vec<vtkm::Float64, 3>& coordinate,
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const vtkm::ImplicitFunction* function) const
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{
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bool pass = passValue;
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vtkm::Float64 value = function->Value(coordinate);
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if (value > 0)
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{
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pass = failValue;
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}
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return pass;
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}
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private:
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bool passValue;
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bool failValue;
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};
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////////////////////////////////////////////////////////////////////////////////////
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// Extract points by id creates new cellset of vertex cells
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template <typename CellSetType>
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vtkm::cont::CellSetSingleType<> Run(const CellSetType& cellSet,
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const vtkm::cont::ArrayHandle<vtkm::Id>& pointIds)
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{
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vtkm::cont::ArrayCopy(pointIds, this->ValidPointIds);
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// Make CellSetSingleType with VERTEX at each point id
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vtkm::cont::CellSetSingleType<> outCellSet(cellSet.GetName());
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outCellSet.Fill(
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cellSet.GetNumberOfPoints(), vtkm::CellShapeTagVertex::Id, 1, this->ValidPointIds);
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return outCellSet;
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}
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////////////////////////////////////////////////////////////////////////////////////
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// Extract points by implicit function
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template <typename CellSetType, typename CoordinateType>
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vtkm::cont::CellSetSingleType<> Run(const CellSetType& cellSet,
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const CoordinateType& coordinates,
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const vtkm::cont::ImplicitFunctionHandle& implicitFunction,
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bool extractInside)
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{
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// Worklet output will be a boolean passFlag array
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vtkm::cont::ArrayHandle<bool> passFlags;
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ExtractPointsByVOI worklet(extractInside);
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DispatcherMapTopology<ExtractPointsByVOI> dispatcher(worklet);
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dispatcher.Invoke(cellSet, coordinates, implicitFunction, passFlags);
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vtkm::cont::ArrayHandleCounting<vtkm::Id> indices =
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vtkm::cont::make_ArrayHandleCounting(vtkm::Id(0), vtkm::Id(1), passFlags.GetNumberOfValues());
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vtkm::cont::Algorithm::CopyIf(indices, passFlags, this->ValidPointIds);
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// Make CellSetSingleType with VERTEX at each point id
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vtkm::cont::CellSetSingleType<> outCellSet(cellSet.GetName());
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outCellSet.Fill(
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cellSet.GetNumberOfPoints(), vtkm::CellShapeTagVertex::Id, 1, this->ValidPointIds);
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return outCellSet;
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}
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private:
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vtkm::cont::ArrayHandle<vtkm::Id> ValidPointIds;
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};
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}
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} // namespace vtkm::worklet
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#endif // vtkm_m_worklet_ExtractPoints_h
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