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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#include "vtkImageToStructuredGrid.h"
#include "vtkCellData.h"
#include "vtkDataObject.h"
#include "vtkImageData.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkPointData.h"
#include "vtkPoints.h"
#include "vtkStructuredGrid.h"
#include <cassert>
//
// Standard methods
//
VTK_ABI_NAMESPACE_BEGIN
vtkStandardNewMacro(vtkImageToStructuredGrid);
vtkImageToStructuredGrid::vtkImageToStructuredGrid() = default;
//------------------------------------------------------------------------------
vtkImageToStructuredGrid::~vtkImageToStructuredGrid() = default;
//------------------------------------------------------------------------------
void vtkImageToStructuredGrid::PrintSelf(std::ostream& oss, vtkIndent indent)
{
this->Superclass::PrintSelf(oss, indent);
}
//------------------------------------------------------------------------------
int vtkImageToStructuredGrid::FillInputPortInformation(int vtkNotUsed(port), vtkInformation* info)
{
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkImageData");
return 1;
}
//------------------------------------------------------------------------------
int vtkImageToStructuredGrid::FillOutputPortInformation(int vtkNotUsed(port), vtkInformation* info)
{
info->Set(vtkDataObject::DATA_TYPE_NAME(), "vtkStructuredGrid");
return 1;
}
//------------------------------------------------------------------------------
int vtkImageToStructuredGrid::RequestData(vtkInformation* vtkNotUsed(request),
vtkInformationVector** inputVector, vtkInformationVector* outputVector)
{
vtkInformation* inInfo = inputVector[0]->GetInformationObject(0);
vtkInformation* outInfo = outputVector->GetInformationObject(0);
assert(inInfo != nullptr);
assert(outInfo != nullptr);
vtkImageData* img = vtkImageData::SafeDownCast(inInfo->Get(vtkImageData::DATA_OBJECT()));
assert(img != nullptr);
vtkStructuredGrid* grid =
vtkStructuredGrid::SafeDownCast(outInfo->Get(vtkStructuredGrid::DATA_OBJECT()));
assert(grid != nullptr);
int dims[3];
img->GetDimensions(dims);
vtkPoints* gridPoints = vtkPoints::New();
assert(gridPoints != nullptr);
gridPoints->SetDataTypeToDouble();
gridPoints->SetNumberOfPoints(img->GetNumberOfPoints());
double pnt[3];
for (int i = 0; i < img->GetNumberOfPoints(); ++i)
{
img->GetPoint(i, pnt);
gridPoints->SetPoint(i, pnt);
}
grid->SetDimensions(dims);
grid->SetPoints(gridPoints);
gridPoints->Delete();
this->CopyPointData(img, grid);
this->CopyCellData(img, grid);
return 1;
}
//------------------------------------------------------------------------------
void vtkImageToStructuredGrid::CopyPointData(vtkImageData* img, vtkStructuredGrid* sgrid)
{
assert(img != nullptr);
assert(sgrid != nullptr);
if (img->GetPointData()->GetNumberOfArrays() == 0)
return;
for (int i = 0; i < img->GetPointData()->GetNumberOfArrays(); ++i)
{
vtkDataArray* myArray = img->GetPointData()->GetArray(i);
sgrid->GetPointData()->AddArray(myArray);
} // END for all node arrays
}
//------------------------------------------------------------------------------
void vtkImageToStructuredGrid::CopyCellData(vtkImageData* img, vtkStructuredGrid* sgrid)
{
assert(img != nullptr);
assert(sgrid != nullptr);
if (img->GetCellData()->GetNumberOfArrays() == 0)
return;
for (int i = 0; i < img->GetCellData()->GetNumberOfArrays(); ++i)
{
vtkDataArray* myArray = img->GetCellData()->GetArray(i);
sgrid->GetCellData()->AddArray(myArray);
} // END for all cell arrays
}
VTK_ABI_NAMESPACE_END
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