7bebc1c497
Inherit from FilterDataSetWithField and implemented a trivial DoMapField whcih just return fales.
125 lines
3.9 KiB
C++
125 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_particle_density_base_h
|
|
#define vtk_m_filter_particle_density_base_h
|
|
|
|
#include <vtkm/filter/FilterDataSetWithField.h>
|
|
#include <vtkm/worklet/WorkletMapField.h>
|
|
|
|
namespace vtkm
|
|
{
|
|
namespace filter
|
|
{
|
|
// We only need the CoordinateSystem and scalar fields of the input dataset thus a FilterField
|
|
template <typename Derived>
|
|
class ParticleDensityBase : public vtkm::filter::FilterDataSetWithField<Derived>
|
|
{
|
|
public:
|
|
// deposit scalar field associated with particles, e.g. mass/charge to mesh cells
|
|
using SupportedTypes = vtkm::TypeListFieldScalar;
|
|
|
|
protected:
|
|
ParticleDensityBase(const vtkm::Id3& dimension,
|
|
const vtkm::Vec3f& origin,
|
|
const vtkm::Vec3f& spacing)
|
|
: Dimension(dimension)
|
|
, Origin(origin)
|
|
, Spacing(spacing)
|
|
, ComputeNumberDensity(false)
|
|
, DivideByVolume(true)
|
|
{
|
|
}
|
|
|
|
ParticleDensityBase(const vtkm::Id3& dimension, const vtkm::Bounds& bounds)
|
|
: Dimension(dimension)
|
|
, Origin({ static_cast<vtkm::FloatDefault>(bounds.X.Min),
|
|
static_cast<vtkm::FloatDefault>(bounds.Y.Min),
|
|
static_cast<vtkm::FloatDefault>(bounds.Z.Min) })
|
|
, Spacing(vtkm::Vec3f{ static_cast<vtkm::FloatDefault>(bounds.X.Length()),
|
|
static_cast<vtkm::FloatDefault>(bounds.Y.Length()),
|
|
static_cast<vtkm::FloatDefault>(bounds.Z.Length()) } /
|
|
Dimension)
|
|
, ComputeNumberDensity(false)
|
|
, DivideByVolume(true)
|
|
{
|
|
}
|
|
|
|
public:
|
|
template <typename DerivedPolicy>
|
|
VTKM_CONT vtkm::cont::DataSet PrepareForExecution(const vtkm::cont::DataSet& input,
|
|
vtkm::filter::PolicyBase<DerivedPolicy> policy)
|
|
{
|
|
if (this->ComputeNumberDensity)
|
|
{
|
|
return static_cast<Derived*>(this)->DoExecute(
|
|
input,
|
|
vtkm::cont::make_ArrayHandleConstant(vtkm::FloatDefault{ 1 }, input.GetNumberOfPoints()),
|
|
vtkm::filter::FieldMetadata{}, // Ignored
|
|
policy);
|
|
}
|
|
else
|
|
{
|
|
return this->FilterDataSetWithField<Derived>::PrepareForExecution(input, policy);
|
|
}
|
|
}
|
|
|
|
template <typename T, typename StorageType, typename Policy>
|
|
VTKM_CONT bool DoMapField(vtkm::cont::DataSet&,
|
|
const vtkm::cont::ArrayHandle<T, StorageType>&,
|
|
const vtkm::filter::FieldMetadata&,
|
|
vtkm::filter::PolicyBase<Policy>)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
VTKM_CONT void SetComputeNumberDensity(bool yes) { this->ComputeNumberDensity = yes; }
|
|
|
|
VTKM_CONT bool GetComputeNumberDensity() const { return this->ComputeNumberDensity; }
|
|
|
|
VTKM_CONT void SetDivideByVolume(bool yes) { this->DivideByVolume = yes; }
|
|
|
|
VTKM_CONT bool GetDivideByVolume() const { return this->DivideByVolume; }
|
|
|
|
protected:
|
|
vtkm::Id3 Dimension; // Cell dimension
|
|
vtkm::Vec3f Origin;
|
|
vtkm::Vec3f Spacing;
|
|
bool ComputeNumberDensity;
|
|
bool DivideByVolume;
|
|
|
|
public:
|
|
// conceptually protected but CUDA needs this to be public
|
|
class DivideByVolumeWorklet : public vtkm::worklet::WorkletMapField
|
|
{
|
|
public:
|
|
using ControlSignature = void(FieldInOut field);
|
|
using ExecutionSignature = void(_1);
|
|
|
|
VTKM_EXEC_CONT
|
|
explicit DivideByVolumeWorklet(vtkm::Float64 volume)
|
|
: Volume(volume)
|
|
{
|
|
}
|
|
|
|
template <typename T>
|
|
VTKM_EXEC void operator()(T& value) const
|
|
{
|
|
value = static_cast<T>(value / Volume);
|
|
}
|
|
|
|
private:
|
|
vtkm::Float64 Volume;
|
|
}; // class DivideByVolumeWorklet
|
|
};
|
|
}
|
|
}
|
|
#endif //vtk_m_filter_particle_density_base_h
|