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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#include "vtkPResampleFilter.h"
#include "vtkCellData.h"
#include "vtkCommunicator.h"
#include "vtkCompositeDataPipeline.h"
#include "vtkDataObject.h"
#include "vtkIdTypeArray.h"
#include "vtkImageData.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkMath.h"
#include "vtkMultiProcessController.h"
#include "vtkNew.h"
#include "vtkObjectFactory.h"
#include "vtkPProbeFilter.h"
#include "vtkPointData.h"
#include "vtkStreamingDemandDrivenPipeline.h"
VTK_ABI_NAMESPACE_BEGIN
vtkStandardNewMacro(vtkPResampleFilter);
vtkCxxSetObjectMacro(vtkPResampleFilter, Controller, vtkMultiProcessController);
//------------------------------------------------------------------------------
vtkPResampleFilter::vtkPResampleFilter()
: UseInputBounds(0)
{
this->Controller = nullptr;
this->SetController(vtkMultiProcessController::GetGlobalController());
this->UseInputBoundsOn();
this->CustomSamplingBounds[0] = this->CustomSamplingBounds[2] = this->CustomSamplingBounds[4] = 0;
this->CustomSamplingBounds[1] = this->CustomSamplingBounds[3] = this->CustomSamplingBounds[5] = 1;
this->SamplingDimension[0] = this->SamplingDimension[1] = this->SamplingDimension[2] = 10;
vtkMath::UninitializeBounds(this->Bounds);
}
//------------------------------------------------------------------------------
vtkPResampleFilter::~vtkPResampleFilter()
{
this->SetController(nullptr);
}
//------------------------------------------------------------------------------
double* vtkPResampleFilter::CalculateBounds(vtkDataSet* input)
{
double localBounds[6];
input->GetBounds(localBounds);
if (!this->Controller)
{
memcpy(this->Bounds, localBounds, 6 * sizeof(double));
}
else
{
double localBoundsMin[3], globalBoundsMin[3];
double localBoundsMax[3], globalBoundsMax[3];
for (int i = 0; i < 3; i++)
{
// Change uninitialized bounds to something that will work
// with collective MPI calls.
if (localBounds[2 * i] > localBounds[2 * i + 1])
{
localBounds[2 * i] = VTK_DOUBLE_MAX;
localBounds[2 * i + 1] = -VTK_DOUBLE_MAX;
}
localBoundsMin[i] = localBounds[2 * i];
localBoundsMax[i] = localBounds[2 * i + 1];
}
this->Controller->AllReduce(localBoundsMin, globalBoundsMin, 3, vtkCommunicator::MIN_OP);
this->Controller->AllReduce(localBoundsMax, globalBoundsMax, 3, vtkCommunicator::MAX_OP);
for (int i = 0; i < 3; i++)
{
if (globalBoundsMin[i] <= globalBoundsMax[i])
{
this->Bounds[2 * i] = globalBoundsMin[i];
this->Bounds[2 * i + 1] = globalBoundsMax[i];
}
else
{
this->Bounds[2 * i] = 0;
this->Bounds[2 * i + 1] = 0;
}
}
}
cout << "Bounds: " << localBounds[0] << " " << localBounds[1] << " " << localBounds[2] << " "
<< localBounds[3] << " " << localBounds[4] << " " << localBounds[5] << " " << endl;
return this->Bounds;
}
//------------------------------------------------------------------------------
int vtkPResampleFilter::RequestInformation(
vtkInformation*, vtkInformationVector**, vtkInformationVector* outputVector)
{
int wholeExtent[6] = { 0, this->SamplingDimension[0] - 1, 0, this->SamplingDimension[1] - 1, 0,
this->SamplingDimension[2] - 1 };
vtkInformation* outInfo = outputVector->GetInformationObject(0);
outInfo->Set(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(), wholeExtent, 6);
return 1;
}
//------------------------------------------------------------------------------
int vtkPResampleFilter::RequestUpdateExtent(
vtkInformation*, vtkInformationVector** inputVector, vtkInformationVector*)
{
vtkInformation* inInfo = inputVector[0]->GetInformationObject(0);
// This needs to be here because input and output extents are not
// necessarily related. The output extent is controlled by the
// resampled dataset whereas the input extent is controlled by
// input data.
inInfo->Set(vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT(),
inInfo->Get(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT()), 6);
return 1;
}
//------------------------------------------------------------------------------
int vtkPResampleFilter::RequestData(vtkInformation* vtkNotUsed(request),
vtkInformationVector** inputVector, vtkInformationVector* outputVector)
{
// get the info objects
vtkInformation* inInfo = inputVector[0]->GetInformationObject(0);
vtkInformation* outInfo = outputVector->GetInformationObject(0);
// get the input and output
vtkDataSet* input = vtkDataSet::SafeDownCast(inInfo->Get(vtkDataObject::DATA_OBJECT()));
vtkDataSet* output = vtkDataSet::SafeDownCast(outInfo->Get(vtkDataObject::DATA_OBJECT()));
// Create Image Data for resampling
vtkNew<vtkImageData> source;
double* boundsToSample =
(this->UseInputBounds == 1) ? this->CalculateBounds(input) : this->CustomSamplingBounds;
source->SetOrigin(boundsToSample[0], boundsToSample[2], boundsToSample[4]);
source->SetDimensions(this->SamplingDimension);
source->SetSpacing(
(boundsToSample[1] - boundsToSample[0]) / static_cast<double>(this->SamplingDimension[0] - 1),
(boundsToSample[3] - boundsToSample[2]) / static_cast<double>(this->SamplingDimension[1] - 1),
(boundsToSample[5] - boundsToSample[4]) / static_cast<double>(this->SamplingDimension[2] - 1));
// Probe data
vtkNew<vtkPProbeFilter> probeFilter;
probeFilter->SetController(this->Controller);
probeFilter->SetSourceData(input);
probeFilter->SetInputData(source);
probeFilter->Update();
output->ShallowCopy(probeFilter->GetOutput());
return 1;
}
//------------------------------------------------------------------------------
int vtkPResampleFilter::FillInputPortInformation(int port, vtkInformation* info)
{
if (!this->Superclass::FillInputPortInformation(port, info))
{
return 0;
}
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkDataObject");
return 1;
}
//------------------------------------------------------------------------------
void vtkPResampleFilter::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "Controller " << this->Controller << endl;
os << indent << "UseInputBounds " << this->UseInputBounds << endl;
if (this->UseInputBounds == 0)
{
os << indent << "CustomSamplingBounds [" << this->CustomSamplingBounds[0] << ", "
<< this->CustomSamplingBounds[1] << ", " << this->CustomSamplingBounds[2] << ", "
<< this->CustomSamplingBounds[3] << ", " << this->CustomSamplingBounds[4] << ", "
<< this->CustomSamplingBounds[5] << "]" << endl;
}
os << indent << "SamplingDimension " << this->SamplingDimension[0] << " x "
<< this->SamplingDimension[1] << " x " << this->SamplingDimension[2] << endl;
}
VTK_ABI_NAMESPACE_END
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