mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 18:45:43 +00:00
114 lines
3.9 KiB
C++
114 lines
3.9 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_ClipWithImplicitFunction_h
|
|
#define vtk_m_filter_ClipWithImplicitFunction_h
|
|
|
|
#include <vtkm/filter/vtkm_filter_extra_export.h>
|
|
|
|
#include <vtkm/ImplicitFunction.h>
|
|
#include <vtkm/filter/FilterDataSet.h>
|
|
#include <vtkm/filter/MapFieldPermutation.h>
|
|
#include <vtkm/worklet/Clip.h>
|
|
|
|
namespace vtkm
|
|
{
|
|
namespace filter
|
|
{
|
|
|
|
/// \brief Clip a dataset using an implicit function
|
|
///
|
|
/// Clip a dataset using a given implicit function value, such as vtkm::Sphere
|
|
/// or vtkm::Frustum.
|
|
/// The resulting geometry will not be water tight.
|
|
class VTKM_FILTER_EXTRA_EXPORT ClipWithImplicitFunction
|
|
: public vtkm::filter::FilterDataSet<ClipWithImplicitFunction>
|
|
{
|
|
public:
|
|
void SetImplicitFunction(const vtkm::ImplicitFunctionGeneral& func) { this->Function = func; }
|
|
|
|
void SetInvertClip(bool invert) { this->Invert = invert; }
|
|
|
|
const vtkm::ImplicitFunctionGeneral& GetImplicitFunction() const { return this->Function; }
|
|
|
|
template <typename DerivedPolicy>
|
|
vtkm::cont::DataSet DoExecute(const vtkm::cont::DataSet& input,
|
|
vtkm::filter::PolicyBase<DerivedPolicy> policy);
|
|
|
|
template <typename DerivedPolicy>
|
|
VTKM_CONT bool MapFieldOntoOutput(vtkm::cont::DataSet& result,
|
|
const vtkm::cont::Field& field,
|
|
vtkm::filter::PolicyBase<DerivedPolicy> policy)
|
|
{
|
|
if (field.IsFieldPoint())
|
|
{
|
|
// If the field is a point field, then we need to do a custom interpolation of the points.
|
|
// In this case, we need to call the superclass's MapFieldOntoOutput, which will in turn
|
|
// call our DoMapField.
|
|
return this->FilterDataSet<ClipWithImplicitFunction>::MapFieldOntoOutput(
|
|
result, field, policy);
|
|
}
|
|
else if (field.IsFieldCell())
|
|
{
|
|
// Use the precompiled field permutation function.
|
|
vtkm::cont::ArrayHandle<vtkm::Id> permutation = this->Worklet.GetCellMapOutputToInput();
|
|
return vtkm::filter::MapFieldPermutation(field, permutation, result);
|
|
}
|
|
else if (field.IsFieldGlobal())
|
|
{
|
|
result.AddField(field);
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
//Map a new field onto the resulting dataset after running the filter.
|
|
//This call is only valid after Execute has been called.
|
|
template <typename T, typename StorageType, typename DerivedPolicy>
|
|
bool DoMapField(vtkm::cont::DataSet& result,
|
|
const vtkm::cont::ArrayHandle<T, StorageType>& input,
|
|
const vtkm::filter::FieldMetadata& fieldMeta,
|
|
vtkm::filter::PolicyBase<DerivedPolicy>)
|
|
{
|
|
// All other conditions should be handled by MapFieldOntoOutput directly.
|
|
VTKM_ASSERT(fieldMeta.IsPointField());
|
|
|
|
vtkm::cont::ArrayHandle<T> output;
|
|
output = this->Worklet.ProcessPointField(input);
|
|
|
|
//use the same meta data as the input so we get the same field name, etc.
|
|
result.AddField(fieldMeta.AsField(output));
|
|
return true;
|
|
}
|
|
|
|
private:
|
|
vtkm::ImplicitFunctionGeneral Function;
|
|
vtkm::worklet::Clip Worklet;
|
|
bool Invert = false;
|
|
};
|
|
|
|
#ifndef vtkm_filter_ClipWithImplicitFunction_cxx
|
|
VTKM_FILTER_EXTRA_EXPORT_EXECUTE_METHOD(ClipWithImplicitFunction);
|
|
#endif
|
|
}
|
|
} // namespace vtkm::filter
|
|
|
|
#ifndef vtk_m_filter_ClipWithImplicitFunctionExternInstantiations_h
|
|
#include <vtkm/filter/ClipWithImplicitFunctionExternInstantiations.h>
|
|
#endif
|
|
|
|
#ifndef vtk_m_filter_ClipWithImplicitFunction_hxx
|
|
#include <vtkm/filter/ClipWithImplicitFunction.hxx>
|
|
#endif
|
|
|
|
#endif // vtk_m_filter_ClipWithImplicitFunction_h
|