vtk-m/vtkm/filter/ImageConnectivity.hxx
2019-04-17 10:57:13 -06:00

58 lines
1.9 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_filter_ImageConnectivity_hxx
#define vtk_m_filter_ImageConnectivity_hxx
#include <vtkm/filter/ImageConnectivity.h>
#include <vtkm/filter/internal/CreateResult.h>
#include <vtkm/worklet/DispatcherMapField.h>
namespace vtkm
{
namespace filter
{
VTKM_CONT ImageConnectivity::ImageConnectivity()
{
this->SetOutputFieldName("component");
}
template <typename T, typename StorageType, typename DerivedPolicy>
inline VTKM_CONT vtkm::cont::DataSet ImageConnectivity::DoExecute(
const vtkm::cont::DataSet& input,
const vtkm::cont::ArrayHandle<T, StorageType>& field,
const vtkm::filter::FieldMetadata& fieldMetadata,
const vtkm::filter::PolicyBase<DerivedPolicy>& policy)
{
if (fieldMetadata.GetAssociation() != vtkm::cont::Field::Association::POINTS)
{
throw vtkm::cont::ErrorBadValue("Active field for ImageConnectivity must be a cell field.");
}
vtkm::cont::ArrayHandle<vtkm::Id> component;
vtkm::worklet::connectivity::ImageConnectivity().Run(
vtkm::filter::ApplyPolicy(input.GetCellSet(this->GetActiveCellSetIndex()), policy),
field,
component);
auto result = internal::CreateResult(input,
component,
this->GetOutputFieldName(),
vtkm::cont::Field::Association::POINTS,
fieldMetadata.GetCellSetName());
return result;
}
}
}
#endif //vtk_m_filter_ImageConnectivity_hxx