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/*=========================================================================
Program: Visualization Toolkit
Module: vtkThresholdTable.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.
=========================================================================*/
/*-------------------------------------------------------------------------
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.
-------------------------------------------------------------------------*/
#include "vtkThresholdTable.h"
#include "vtkArrayIteratorIncludes.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkStringArray.h"
#include "vtkTable.h"
#include "vtkVariant.h"
#include "vtkVariantArray.h"
vtkStandardNewMacro(vtkThresholdTable);
vtkThresholdTable::vtkThresholdTable() : MinValue(0), MaxValue(VTK_INT_MAX), Mode(0)
{
}
vtkThresholdTable::~vtkThresholdTable()
{
}
void vtkThresholdTable::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "MinValue: " << this->MinValue.ToString() << endl;
os << indent << "MaxValue: " << this->MaxValue.ToString() << endl;
os << indent << "Mode: ";
switch (this->Mode)
{
case ACCEPT_LESS_THAN:
os << "Accept less than";
break;
case ACCEPT_GREATER_THAN:
os << "Accept greater than";
break;
case ACCEPT_BETWEEN:
os << "Accept between";
break;
case ACCEPT_OUTSIDE:
os << "Accept outside";
break;
default:
os << "Undefined";
break;
}
os << endl;
}
static bool vtkThresholdTableCompare(vtkVariant a, vtkVariant b)
{
return a.ToDouble() <= b.ToDouble();
}
template <typename iterT>
void vtkThresholdTableThresholdRows(iterT* it, vtkTable* input, vtkTable* output, vtkVariant min, vtkVariant max, int mode)
{
vtkIdType maxInd = it->GetNumberOfValues();
for (vtkIdType i = 0; i < maxInd; i++)
{
bool accept = false;
vtkVariant v(it->GetValue(i));
if (mode == vtkThresholdTable::ACCEPT_LESS_THAN)
{
accept = vtkThresholdTableCompare(v, max);
}
else if (mode == vtkThresholdTable::ACCEPT_GREATER_THAN)
{
accept = vtkThresholdTableCompare(min, v);
}
else if (mode == vtkThresholdTable::ACCEPT_BETWEEN)
{
accept = (vtkThresholdTableCompare(min, v) && vtkThresholdTableCompare(v, max));
}
else if (mode == vtkThresholdTable::ACCEPT_OUTSIDE)
{
accept = (vtkThresholdTableCompare(v, min) || vtkThresholdTableCompare(max, v));
}
if (accept)
{
vtkVariantArray* row = input->GetRow(i);
output->InsertNextRow(row);
}
}
}
void vtkThresholdTable::ThresholdBetween(vtkVariant lower, vtkVariant upper)
{
if ( this->MinValue != lower || this->MaxValue != upper ||
this->Mode != vtkThresholdTable::ACCEPT_BETWEEN)
{
this->MinValue = lower;
this->MaxValue = upper;
this->Mode = vtkThresholdTable::ACCEPT_BETWEEN;
this->Modified();
}
}
int vtkThresholdTable::RequestData(
vtkInformation*,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector)
{
vtkAbstractArray* arr = this->GetInputAbstractArrayToProcess(0, inputVector);
if (arr == NULL)
{
vtkErrorMacro("An input array must be specified.");
return 0;
}
vtkTable* input = vtkTable::GetData(inputVector[0]);
vtkTable* output = vtkTable::GetData(outputVector);
for (int n = 0; n < input->GetNumberOfColumns(); n++)
{
vtkAbstractArray* col = input->GetColumn(n);
vtkAbstractArray* ncol = vtkAbstractArray::CreateArray(col->GetDataType());
ncol->SetName(col->GetName());
ncol->SetNumberOfComponents(col->GetNumberOfComponents());
output->AddColumn(ncol);
ncol->Delete();
}
vtkArrayIterator* iter = arr->NewIterator();
switch (arr->GetDataType())
{
vtkArrayIteratorTemplateMacro(
vtkThresholdTableThresholdRows(static_cast<VTK_TT*>(iter), input, output,
this->MinValue, this->MaxValue, this->Mode));
}
iter->Delete();
return 1;
}
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