vtk-m/vtkm/filter/VertexClustering.hxx
2017-10-10 10:28:51 -04:00

87 lines
3.0 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.
//============================================================================
namespace vtkm
{
namespace filter
{
//-----------------------------------------------------------------------------
inline VTKM_CONT VertexClustering::VertexClustering()
: vtkm::filter::FilterDataSet<VertexClustering>()
, NumberOfDivisions(256, 256, 256)
{
}
//-----------------------------------------------------------------------------
template <typename DerivedPolicy, typename DeviceAdapter>
inline VTKM_CONT vtkm::filter::Result VertexClustering::DoExecute(
const vtkm::cont::DataSet& input,
const vtkm::filter::PolicyBase<DerivedPolicy>& policy,
const DeviceAdapter& tag)
{
// todo this code needs to obey the policy for what storage types
// the output should use
//need to compute bounds first
vtkm::Bounds bounds = input.GetCoordinateSystem().GetBounds(
typename DerivedPolicy::CoordinateTypeList(), typename DerivedPolicy::CoordinateStorageList());
vtkm::cont::DataSet outDataSet =
this->Worklet.Run(vtkm::filter::ApplyPolicyUnstructured(input.GetCellSet(), policy),
vtkm::filter::ApplyPolicy(input.GetCoordinateSystem(), policy),
bounds,
this->GetNumberOfDivisions(),
tag);
return vtkm::filter::Result(outDataSet);
}
//-----------------------------------------------------------------------------
template <typename T, typename StorageType, typename DerivedPolicy, typename DeviceAdapter>
inline VTKM_CONT bool VertexClustering::DoMapField(
vtkm::filter::Result& result,
const vtkm::cont::ArrayHandle<T, StorageType>& input,
const vtkm::filter::FieldMetadata& fieldMeta,
const vtkm::filter::PolicyBase<DerivedPolicy>&,
const DeviceAdapter& device)
{
vtkm::cont::ArrayHandle<T> fieldArray;
if (fieldMeta.IsPointField())
{
fieldArray = this->Worklet.ProcessPointField(input, device);
}
else if (fieldMeta.IsCellField())
{
fieldArray = this->Worklet.ProcessCellField(input, device);
}
else
{
return false;
}
//use the same meta data as the input so we get the same field name, etc.
result.GetDataSet().AddField(fieldMeta.AsField(fieldArray));
return true;
}
}
}