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vtkSparseArrayToTable.cxx
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vtkSparseArrayToTable.cxx
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkSparseArrayToTable.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 "vtkArrayData.h"
#include "vtkDoubleArray.h"
#include "vtkIdTypeArray.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkSmartPointer.h"
#include "vtkSparseArray.h"
#include "vtkSparseArrayToTable.h"
#include "vtkStringArray.h"
#include "vtkTable.h"
#include <sstream>
#include <stdexcept>
template<typename ValueT, typename ValueColumnT>
static bool Convert(vtkArray* Array, const char* ValueColumn, vtkTable* Table)
{
vtkSparseArray<ValueT>* const array = vtkSparseArray<ValueT>::SafeDownCast(Array);
if(!array)
return false;
if(!ValueColumn)
throw std::runtime_error("ValueColumn not specified.");
const vtkIdType dimensions = array->GetDimensions();
const vtkIdType value_count = array->GetNonNullSize();
for(vtkIdType dimension = 0; dimension != dimensions; ++dimension)
{
vtkIdType* const array_coordinates = array->GetCoordinateStorage(dimension);
vtkIdTypeArray* const table_coordinates = vtkIdTypeArray::New();
table_coordinates->SetName(array->GetDimensionLabel(dimension));
table_coordinates->SetNumberOfTuples(value_count);
std::copy(array_coordinates, array_coordinates + value_count, table_coordinates->GetPointer(0));
Table->AddColumn(table_coordinates);
table_coordinates->Delete();
}
ValueT* const array_values = array->GetValueStorage();
ValueColumnT* const table_values = ValueColumnT::New();
table_values->SetName(ValueColumn);
table_values->SetNumberOfTuples(value_count);
std::copy(array_values, array_values + value_count, table_values->GetPointer(0));
Table->AddColumn(table_values);
table_values->Delete();
return true;
}
// ----------------------------------------------------------------------
vtkStandardNewMacro(vtkSparseArrayToTable);
// ----------------------------------------------------------------------
vtkSparseArrayToTable::vtkSparseArrayToTable() :
ValueColumn(0)
{
this->SetValueColumn("value");
this->SetNumberOfInputPorts(1);
this->SetNumberOfOutputPorts(1);
}
// ----------------------------------------------------------------------
vtkSparseArrayToTable::~vtkSparseArrayToTable()
{
this->SetValueColumn(0);
}
// ----------------------------------------------------------------------
void vtkSparseArrayToTable::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "ValueColumn: " << (this->ValueColumn ? this->ValueColumn : "(none)") << endl;
}
int vtkSparseArrayToTable::FillInputPortInformation(int port, vtkInformation* info)
{
switch(port)
{
case 0:
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkArrayData");
return 1;
}
return 0;
}
// ----------------------------------------------------------------------
int vtkSparseArrayToTable::RequestData(
vtkInformation*,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector)
{
try
{
vtkArrayData* const input_array_data = vtkArrayData::GetData(inputVector[0]);
if(input_array_data->GetNumberOfArrays() != 1)
throw std::runtime_error("vtkSparseArrayToTable requires a vtkArrayData containing exactly one array.");
vtkArray* const input_array = input_array_data->GetArray(static_cast<vtkIdType>(0));
vtkTable* const output_table = vtkTable::GetData(outputVector);
if(Convert<double, vtkDoubleArray>(input_array, this->ValueColumn, output_table)) return 1;
if(Convert<vtkStdString, vtkStringArray>(input_array, this->ValueColumn, output_table)) return 1;
}
catch(std::exception& e)
{
vtkErrorMacro(<< e.what());
}
return 0;
}