vtk-m2/vtkm/filter/ClipWithField.hxx
Kenneth Moreland bddad9b386 Remove TryExecute from filters
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.
2018-10-16 15:59:53 -06:00

130 lines
4.0 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.
//
// Copyright 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
// Copyright 2014 UT-Battelle, LLC.
// Copyright 2014 Los Alamos National Security.
//
// Under the terms of Contract DE-NA0003525 with NTESS,
// the U.S. Government retains certain rights in this software.
//
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
// Laboratory (LANL), the U.S. Government retains certain rights in
// this software.
//============================================================================
#include <vtkm/cont/ArrayHandlePermutation.h>
#include <vtkm/cont/CellSetPermutation.h>
#include <vtkm/cont/CoordinateSystem.h>
#include <vtkm/cont/DynamicArrayHandle.h>
#include <vtkm/cont/DynamicCellSet.h>
#include <vtkm/cont/ErrorFilterExecution.h>
#include <vtkm/worklet/DispatcherMapTopology.h>
namespace vtkm
{
namespace filter
{
namespace clipwithfield
{
struct PointMapHelper
{
PointMapHelper(const vtkm::worklet::Clip& worklet, vtkm::cont::DynamicArrayHandle& output)
: Worklet(worklet)
, Output(output)
{
}
template <typename ArrayType>
void operator()(const ArrayType& array) const
{
this->Output = this->Worklet.ProcessPointField(array);
}
const vtkm::worklet::Clip& Worklet;
vtkm::cont::DynamicArrayHandle& Output;
};
} // end namespace clipwithfield
//-----------------------------------------------------------------------------
inline VTKM_CONT ClipWithField::ClipWithField()
: vtkm::filter::FilterDataSetWithField<ClipWithField>()
, ClipValue(0)
, Worklet()
, Invert(false)
{
}
//-----------------------------------------------------------------------------
template <typename T, typename StorageType, typename DerivedPolicy>
inline VTKM_CONT vtkm::cont::DataSet ClipWithField::DoExecute(
const vtkm::cont::DataSet& input,
const vtkm::cont::ArrayHandle<T, StorageType>& field,
const vtkm::filter::FieldMetadata& fieldMeta,
vtkm::filter::PolicyBase<DerivedPolicy> policy)
{
using namespace clipwithfield;
if (fieldMeta.IsPointField() == false)
{
throw vtkm::cont::ErrorFilterExecution("Point field expected.");
}
//get the cells and coordinates of the dataset
const vtkm::cont::DynamicCellSet& cells = input.GetCellSet(this->GetActiveCellSetIndex());
const vtkm::cont::CoordinateSystem& inputCoords =
input.GetCoordinateSystem(this->GetActiveCoordinateSystemIndex());
vtkm::cont::CellSetExplicit<> outputCellSet = this->Worklet.Run(
vtkm::filter::ApplyPolicy(cells, policy), field, this->ClipValue, this->Invert);
//create the output data
vtkm::cont::DataSet output;
output.AddCellSet(outputCellSet);
// Compute the new boundary points and add them to the output:
auto outputCoordsArray = this->Worklet.ProcessPointField(inputCoords.GetData());
vtkm::cont::CoordinateSystem outputCoords(inputCoords.GetName(), outputCoordsArray);
output.AddCoordinateSystem(outputCoords);
return output;
}
//-----------------------------------------------------------------------------
template <typename T, typename StorageType, typename DerivedPolicy>
inline VTKM_CONT bool ClipWithField::DoMapField(
vtkm::cont::DataSet& result,
const vtkm::cont::ArrayHandle<T, StorageType>& input,
const vtkm::filter::FieldMetadata& fieldMeta,
vtkm::filter::PolicyBase<DerivedPolicy>)
{
vtkm::cont::ArrayHandle<T> output;
if (fieldMeta.IsPointField())
{
output = this->Worklet.ProcessPointField(input);
}
else if (fieldMeta.IsCellField())
{
output = this->Worklet.ProcessCellField(input);
}
else
{
return false;
}
//use the same meta data as the input so we get the same field name, etc.
result.AddField(fieldMeta.AsField(output));
return true;
}
}
} // end namespace vtkm::filter