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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#include "vtkMergeVectorComponents.h"
#include "vtkArrayDispatch.h"
#include "vtkDataArray.h"
#include "vtkDataArrayRange.h"
#include "vtkDataSet.h"
#include "vtkDoubleArray.h"
#include "vtkExecutive.h"
#include "vtkFieldData.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkSMPTools.h"
VTK_ABI_NAMESPACE_BEGIN
vtkStandardNewMacro(vtkMergeVectorComponents);
//------------------------------------------------------------------------------
vtkMergeVectorComponents::vtkMergeVectorComponents()
{
this->XArrayName = nullptr;
this->YArrayName = nullptr;
this->ZArrayName = nullptr;
this->OutputVectorName = nullptr;
this->AttributeType = vtkDataObject::POINT;
}
//------------------------------------------------------------------------------
vtkMergeVectorComponents::~vtkMergeVectorComponents()
{
this->SetXArrayName(nullptr);
this->SetYArrayName(nullptr);
this->SetZArrayName(nullptr);
this->SetOutputVectorName(nullptr);
}
//------------------------------------------------------------------------------
int vtkMergeVectorComponents::FillInputPortInformation(int vtkNotUsed(port), vtkInformation* info)
{
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkDataSet");
return 1;
}
//------------------------------------------------------------------------------
namespace
{
template <typename ArrayTypeX, typename ArrayTypeY, typename ArrayTypeZ>
class MergeVectorComponentsFunctor
{
ArrayTypeX* ArrayX;
ArrayTypeY* ArrayY;
ArrayTypeZ* ArrayZ;
vtkDoubleArray* Vector;
vtkMergeVectorComponents* Filter;
public:
MergeVectorComponentsFunctor(ArrayTypeX* arrayX, ArrayTypeY* arrayY, ArrayTypeZ* arrayZ,
vtkDataArray* vector, vtkMergeVectorComponents* filter)
: ArrayX(arrayX)
, ArrayY(arrayY)
, ArrayZ(arrayZ)
, Vector(vtkDoubleArray::FastDownCast(vector))
, Filter(filter)
{
}
void operator()(vtkIdType begin, vtkIdType end)
{
// mark out ranges as single component for better perf
auto inX = vtk::DataArrayValueRange<1>(this->ArrayX, begin, end).begin();
auto inY = vtk::DataArrayValueRange<1>(this->ArrayY, begin, end).begin();
auto inZ = vtk::DataArrayValueRange<1>(this->ArrayZ, begin, end).begin();
auto outVector = vtk::DataArrayTupleRange<3>(this->Vector, begin, end);
bool isFirst = vtkSMPTools::GetSingleThread();
for (auto tuple : outVector)
{
if (isFirst)
{
this->Filter->CheckAbort();
}
if (this->Filter->GetAbortOutput())
{
break;
}
tuple[0] = *inX++;
tuple[1] = *inY++;
tuple[2] = *inZ++;
}
}
};
struct MergeVectorComponentsWorker
{
template <typename ArrayTypeX, typename ArrayTypeY, typename ArrayTypeZ>
void operator()(ArrayTypeX* arrayX, ArrayTypeY* arrayY, ArrayTypeZ* arrayZ, vtkDataArray* vector,
vtkMergeVectorComponents* filter)
{
MergeVectorComponentsFunctor<ArrayTypeX, ArrayTypeY, ArrayTypeZ> functor(
arrayX, arrayY, arrayZ, vector, filter);
vtkSMPTools::For(0, vector->GetNumberOfTuples(), functor);
}
};
} // namespace
//------------------------------------------------------------------------------
int vtkMergeVectorComponents::RequestData(vtkInformation* vtkNotUsed(request),
vtkInformationVector** inputVector, vtkInformationVector* outputVector)
{
vtkDebugMacro(<< "Merging vector components...");
// check that the attribute type is set
if (AttributeType != vtkDataObject::POINT && AttributeType != vtkDataObject::CELL)
{
vtkErrorMacro(<< "No attribute-type is set!");
return 1;
}
// check that array names are set
if (this->XArrayName == nullptr || this->YArrayName == nullptr || this->ZArrayName == nullptr)
{
vtkErrorMacro(<< "No array names were set!");
return 1;
}
// get the input and output
vtkDataSet* input = vtkDataSet::SafeDownCast(vtkDataObject::GetData(inputVector[0], 0));
vtkDataSet* output = vtkDataSet::SafeDownCast(vtkDataObject::GetData(outputVector, 0));
output->CopyStructure(input);
vtkFieldData* inFD = input->GetAttributesAsFieldData(this->AttributeType);
vtkFieldData* outFD = output->GetAttributesAsFieldData(this->AttributeType);
// get the point-data arrays
vtkDataArray* xFD = inFD->GetArray(this->XArrayName);
vtkDataArray* yFD = inFD->GetArray(this->YArrayName);
vtkDataArray* zFD = inFD->GetArray(this->ZArrayName);
// check if the provided array names correspond to valid arrays
if ((xFD == nullptr || xFD->GetNumberOfTuples() < 1) ||
(yFD == nullptr || yFD->GetNumberOfTuples() < 1) ||
(zFD == nullptr || zFD->GetNumberOfTuples() < 1))
{
vtkErrorMacro(<< "No arrays with the provided names exist!");
return 1;
}
std::string outVectorName;
// if output vector name is unset, we define a default name
if (this->OutputVectorName == nullptr)
{
outVectorName = "combinationVector";
}
else
{
outVectorName = this->OutputVectorName;
}
vtkDataArray* vectorFD = vtkDataArray::CreateDataArray(VTK_DOUBLE);
vectorFD->SetNumberOfComponents(3);
vectorFD->SetNumberOfTuples(xFD->GetNumberOfTuples());
vectorFD->SetName(outVectorName.c_str());
using Dispatcher = vtkArrayDispatch::Dispatch3SameValueType;
if (!Dispatcher::Execute(xFD, yFD, zFD, MergeVectorComponentsWorker{}, vectorFD, this))
{
MergeVectorComponentsWorker{}(xFD, yFD, zFD, vectorFD, this);
}
// add array and copy field data of same type
outFD->PassData(inFD);
outFD->AddArray(vectorFD);
vectorFD->Delete();
// copy all the other attribute types
vtkFieldData *inOtherFD, *outOtherFD;
vtkDataObject::AttributeTypes otherAttributeType;
for (unsigned int i = 0; i < vtkDataObject::AttributeTypes::NUMBER_OF_ATTRIBUTE_TYPES; ++i)
{
otherAttributeType = static_cast<vtkDataObject::AttributeTypes>(i);
if (this->AttributeType != otherAttributeType)
{
inOtherFD = input->GetAttributesAsFieldData(otherAttributeType);
outOtherFD = output->GetAttributesAsFieldData(otherAttributeType);
// check that attribute type exists
if (inOtherFD != nullptr && outOtherFD != nullptr)
{
outOtherFD->PassData(inOtherFD);
}
}
}
return 1;
}
//------------------------------------------------------------------------------
void vtkMergeVectorComponents::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "XArrayName: " << (this->XArrayName ? this->XArrayName : "(nullptr)") << endl;
os << indent << "YArrayName: " << (this->YArrayName ? this->YArrayName : "(nullptr)") << endl;
os << indent << "ZArrayName: " << (this->ZArrayName ? this->ZArrayName : "(nullptr)") << endl;
os << indent
<< "OutputVectorName: " << (this->OutputVectorName ? this->OutputVectorName : "(nullptr)")
<< endl;
os << indent << "AttributeType: " << this->AttributeType << endl;
}
VTK_ABI_NAMESPACE_END
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