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/*=========================================================================
Program: Visualization Toolkit
Module: vtkAppendPoints.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm 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.
=========================================================================*/
#include "vtkAppendPoints.h"
#include "vtkDataSetAttributes.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkPointData.h"
#include "vtkPoints.h"
#include "vtkPolyData.h"
#include "vtkSmartPointer.h"
#include "vtkStringArray.h"
#include "vtkTable.h"
#include <set>
#include <vector>
vtkStandardNewMacro(vtkAppendPoints);
//----------------------------------------------------------------------------
vtkAppendPoints::vtkAppendPoints()
{
this->InputIdArrayName = 0;
this->OutputPointsPrecision = vtkAlgorithm::DEFAULT_PRECISION;
}
//----------------------------------------------------------------------------
vtkAppendPoints::~vtkAppendPoints()
{
this->SetInputIdArrayName(0);
}
//----------------------------------------------------------------------------
// This method is much too long, and has to be broken up!
// Append data sets into single polygonal data set.
int vtkAppendPoints::RequestData(vtkInformation *vtkNotUsed(request),
vtkInformationVector **inputVector,
vtkInformationVector *outputVector)
{
vtkInformation *outInfo = outputVector->GetInformationObject(0);
vtkPolyData *output = vtkPolyData::SafeDownCast(
outInfo->Get(vtkDataObject::DATA_OBJECT()));
// Find common array names.
vtkIdType totalPoints = 0;
int numInputs = this->GetNumberOfInputConnections(0);
bool first = true;
std::set<std::string> arrayNames;
for (int idx = 0; idx < numInputs; ++idx)
{
vtkInformation* inInfo = inputVector[0]->GetInformationObject(idx);
vtkPolyData* input = vtkPolyData::SafeDownCast(
inInfo->Get(vtkDataObject::DATA_OBJECT()));
if (input && input->GetNumberOfPoints() > 0)
{
totalPoints += input->GetNumberOfPoints();
if (first)
{
int numArrays = input->GetPointData()->GetNumberOfArrays();
for (int a = 0; a < numArrays; ++a)
{
arrayNames.insert(input->GetPointData()->GetAbstractArray(a)->GetName());
}
first = false;
}
else
{
std::set<std::string> toErase;
std::set<std::string>::iterator it, itEnd;
itEnd = arrayNames.end();
for (it = arrayNames.begin(); it != itEnd; ++it)
{
if (!input->GetPointData()->GetAbstractArray(it->c_str()))
{
toErase.insert(*it);
}
}
itEnd = toErase.end();
for (it = toErase.begin(); it != itEnd; ++it)
{
arrayNames.erase(*it);
}
}
}
}
std::vector<vtkSmartPointer<vtkPolyData> > inputs;
for (int idx = 0; idx < numInputs; ++idx)
{
vtkInformation* inInfo = inputVector[0]->GetInformationObject(idx);
vtkPolyData* input = vtkPolyData::SafeDownCast(
inInfo->Get(vtkDataObject::DATA_OBJECT()));
if (input && input->GetNumberOfPoints() > 0)
{
vtkSmartPointer<vtkPolyData> copy =
vtkSmartPointer<vtkPolyData>::New();
copy->SetPoints(input->GetPoints());
std::set<std::string>::iterator it, itEnd;
itEnd = arrayNames.end();
for (it = arrayNames.begin(); it != itEnd; ++it)
{
copy->GetPointData()->AddArray(
input->GetPointData()->GetAbstractArray(it->c_str()));
}
inputs.push_back(copy);
}
else
{
inputs.push_back(0);
}
}
vtkPointData* pd = 0;
vtkIdType index = 0;
vtkSmartPointer<vtkPoints> pts = vtkSmartPointer<vtkPoints>::New();
// Set the desired precision for the points in the output.
if(this->OutputPointsPrecision == vtkAlgorithm::DEFAULT_PRECISION)
{
// The points in distinct inputs may be of differing precisions.
pts->SetDataType(VTK_FLOAT);
for (size_t idx = 0; idx < inputs.size(); ++idx)
{
vtkPolyData* input = inputs[idx];
// Set the desired precision to VTK_DOUBLE if the precision of the
// points in any of the inputs is VTK_DOUBLE.
if(input && input->GetPoints() && input->GetPoints()->GetDataType() == VTK_DOUBLE)
{
pts->SetDataType(VTK_DOUBLE);
break;
}
}
}
else if(this->OutputPointsPrecision == vtkAlgorithm::SINGLE_PRECISION)
{
pts->SetDataType(VTK_FLOAT);
}
else if(this->OutputPointsPrecision == vtkAlgorithm::DOUBLE_PRECISION)
{
pts->SetDataType(VTK_DOUBLE);
}
pts->SetNumberOfPoints(totalPoints);
vtkSmartPointer<vtkIntArray> idArr;
if (this->InputIdArrayName)
{
idArr = vtkSmartPointer<vtkIntArray>::New();
idArr->SetName(this->InputIdArrayName);
idArr->SetNumberOfTuples(totalPoints);
}
for (size_t idx = 0; idx < inputs.size(); ++idx)
{
vtkPolyData* input = inputs[idx];
if (input)
{
vtkPointData* ipd = input->GetPointData();
if (!pd)
{
pd = output->GetPointData();
pd->CopyAllocate(ipd, totalPoints);
}
vtkIdType numPoints = input->GetNumberOfPoints();
for (vtkIdType i = 0; i < numPoints; ++i)
{
pd->CopyData(ipd, i, index);
pts->InsertPoint(index, input->GetPoint(i));
if (this->InputIdArrayName)
{
idArr->InsertValue(index, static_cast<int>(idx));
}
++index;
}
}
}
output->SetPoints(pts);
if (this->InputIdArrayName)
{
output->GetPointData()->AddArray(idArr);
}
return 1;
}
//----------------------------------------------------------------------------
void vtkAppendPoints::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
os << indent << "InputIdArrayName: "
<< (this->InputIdArrayName ? this->InputIdArrayName : "(none)") << endl
<< indent << "Output Points Precision: " << this->OutputPointsPrecision
<< endl;
}
//----------------------------------------------------------------------------
int vtkAppendPoints::FillInputPortInformation(int port, vtkInformation *info)
{
if (!this->Superclass::FillInputPortInformation(port, info))
{
return 0;
}
info->Set(vtkAlgorithm::INPUT_IS_REPEATABLE(), 1);
info->Set(vtkAlgorithm::INPUT_IS_OPTIONAL(), 1);
return 1;
}
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