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/*=========================================================================
Program: Visualization Toolkit
Module: vtkTableToArray.cxx
-------------------------------------------------------------------------
Copyright 2008 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------
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 "vtkAbstractArray.h"
#include "vtkDenseArray.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkStdString.h"
#include "vtkTable.h"
#include "vtkTableToArray.h"
#include "vtkVariant.h"
#include <vtksys/stl/algorithm>
class vtkTableToArray::implementation
{
public:
/// Store the list of columns as an ordered set of variants. The type
/// of each variant determines which columns will be inserted into the
/// output matrix:
///
/// vtkStdString - stores the name of a column to be inserted.
/// int - stores the index of a column to be inserted.
/// char 'A' - indicates that every table column should be inserted.
std::vector<vtkVariant> Columns;
};
// ----------------------------------------------------------------------
vtkStandardNewMacro(vtkTableToArray);
// ----------------------------------------------------------------------
vtkTableToArray::vtkTableToArray() :
Implementation(new implementation())
{
this->SetNumberOfInputPorts(1);
this->SetNumberOfOutputPorts(1);
}
// ----------------------------------------------------------------------
vtkTableToArray::~vtkTableToArray()
{
delete this->Implementation;
}
// ----------------------------------------------------------------------
void vtkTableToArray::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
for(size_t i = 0; i != this->Implementation->Columns.size(); ++i)
os << indent << "Column: " << this->Implementation->Columns[i] << endl;
}
void vtkTableToArray::ClearColumns()
{
this->Implementation->Columns.clear();
this->Modified();
}
void vtkTableToArray::AddColumn(const char* name)
{
if(!name)
{
vtkErrorMacro(<< "cannot add column with NULL name");
return;
}
this->Implementation->Columns.push_back(vtkVariant(vtkStdString(name)));
this->Modified();
}
void vtkTableToArray::AddColumn(vtkIdType index)
{
this->Implementation->Columns.push_back(vtkVariant(static_cast<int>(index)));
this->Modified();
}
void vtkTableToArray::AddAllColumns()
{
this->Implementation->Columns.push_back(vtkVariant(static_cast<char>('A')));
this->Modified();
}
int vtkTableToArray::FillInputPortInformation(int port, vtkInformation* info)
{
switch(port)
{
case 0:
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkTable");
return 1;
}
return 0;
}
// ----------------------------------------------------------------------
int vtkTableToArray::RequestData(
vtkInformation*,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector)
{
vtkTable* const table = vtkTable::GetData(inputVector[0]);
std::vector<vtkAbstractArray*> columns;
for(size_t i = 0; i != this->Implementation->Columns.size(); ++i)
{
if(this->Implementation->Columns[i].IsString())
{
columns.push_back(table->GetColumnByName(this->Implementation->Columns[i].ToString().c_str()));
if(!columns.back())
{
vtkErrorMacro(<< "Missing table column: " << this->Implementation->Columns[i].ToString().c_str());
return 0;
}
}
else if(this->Implementation->Columns[i].IsInt())
{
columns.push_back(table->GetColumn(this->Implementation->Columns[i].ToInt()));
if(!columns.back())
{
vtkErrorMacro(<< "Missing table column: " << this->Implementation->Columns[i].ToInt());
return 0;
}
}
else if(this->Implementation->Columns[i].IsChar() && this->Implementation->Columns[i].ToChar() == 'A')
{
for(vtkIdType j = 0; j != table->GetNumberOfColumns(); ++j)
{
columns.push_back(table->GetColumn(j));
}
}
}
vtkDenseArray<double>* const array = vtkDenseArray<double>::New();
array->Resize(table->GetNumberOfRows(), columns.size());
array->SetDimensionLabel(0, "row");
array->SetDimensionLabel(1, "column");
for(vtkIdType i = 0; i != table->GetNumberOfRows(); ++i)
{
for(size_t j = 0; j != columns.size(); ++j)
{
array->SetValue(i, j, columns[j]->GetVariantValue(i).ToDouble());
}
}
vtkArrayData* const output = vtkArrayData::GetData(outputVector);
output->ClearArrays();
output->AddArray(array);
array->Delete();
return 1;
}
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