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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkTableToTreeFilter.cxx,v $
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.
=========================================================================*/
/*----------------------------------------------------------------------------
Copyright (c) Sandia Corporation
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
----------------------------------------------------------------------------*/
#include "vtkTableToTreeFilter.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkPointData.h"
#include "vtkStringArray.h"
#include "vtkStdString.h"
#include "vtkTable.h"
#include "vtkTree.h"
#include <vtkstd/algorithm>
#include <vtkstd/vector>
#include <vtkstd/string>
vtkCxxRevisionMacro(vtkTableToTreeFilter, "$Revision: 1.2 $");
vtkStandardNewMacro(vtkTableToTreeFilter);
vtkTableToTreeFilter::vtkTableToTreeFilter()
{
}
vtkTableToTreeFilter::~vtkTableToTreeFilter()
{
}
void vtkTableToTreeFilter::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
int vtkTableToTreeFilter::FillOutputPortInformation(
int vtkNotUsed(port), vtkInformation* info)
{
// now add our info
info->Set(vtkDataObject::DATA_TYPE_NAME(), "vtkTree");
return 1;
}
int vtkTableToTreeFilter::FillInputPortInformation(
int vtkNotUsed(port), vtkInformation* info)
{
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkTable");
return 1;
}
int vtkTableToTreeFilter::RequestData(
vtkInformation*,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector)
{
// Get the info objects
vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
vtkInformation *outInfo = outputVector->GetInformationObject(0);
// Storing the inputTable and outputTree handles
vtkTable* table = vtkTable::SafeDownCast(
inInfo->Get(vtkDataObject::DATA_OBJECT()));
vtkTree* tree = vtkTree::SafeDownCast(
outInfo->Get(vtkDataObject::DATA_OBJECT()));
// Start by making a simple chain
tree->AddRoot();
for (vtkIdType vertex = 1; vertex < table->GetNumberOfRows(); vertex++)
{
tree->AddChild(vertex - 1);
}
// Add a new vertex to be the root
vtkIdType root = tree->AddChild(table->GetNumberOfRows() - 1);
tree->SetRoot(root);
// Insert a row in the table for the new root.
// This modifies the input, but it might be ok because we are
// just extending the arrays.
table->InsertNextBlankRow();
// Convert the tree from a path to a star
for (vtkIdType vertex = 0; vertex < table->GetNumberOfRows() - 1; vertex++)
{
tree->SetParent(vertex, root);
}
// Copy the table data into the tree vertex data
tree->GetVertexData()->PassData(table->GetFieldData());
return 1;
}
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