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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkPiecewiseFunctionShiftScale.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.
=========================================================================*/
#include "vtkPiecewiseFunctionShiftScale.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkPiecewiseFunction.h"
vtkCxxRevisionMacro(vtkPiecewiseFunctionShiftScale, "$Revision: 1.6 $");
vtkStandardNewMacro(vtkPiecewiseFunctionShiftScale);
vtkPiecewiseFunctionShiftScale::vtkPiecewiseFunctionShiftScale()
{
this->PositionShift = 0.0;
this->PositionScale = 1.0;
this->ValueShift = 0.0;
this->ValueScale = 1.0;
}
vtkPiecewiseFunctionShiftScale::~vtkPiecewiseFunctionShiftScale()
{
}
int vtkPiecewiseFunctionShiftScale::RequestData(
vtkInformation *,
vtkInformationVector **inputVector,
vtkInformationVector *outputVector)
{
vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
vtkInformation *outInfo = outputVector->GetInformationObject(0);
vtkPiecewiseFunction *input = vtkPiecewiseFunction::SafeDownCast(
inInfo->Get(vtkDataObject::DATA_OBJECT()));
vtkPiecewiseFunction *output = vtkPiecewiseFunction::SafeDownCast(
outInfo->Get(vtkDataObject::DATA_OBJECT()));
double *inFunction = input->GetDataPointer();
int numInValues = input->GetSize();
output->RemoveAllPoints();
int i;
for (i = 0; i < numInValues; i++)
{
output->AddPoint((inFunction[2*i] + this->PositionShift) *
this->PositionScale,
(inFunction[2*i+1] + this->ValueShift) *
this->ValueScale);
}
return 1;
}
void vtkPiecewiseFunctionShiftScale::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "PositionShift: " << this->PositionShift << "\n";
os << indent << "PositionScale: " << this->PositionScale << "\n";
os << indent << "ValueShift: " << this->ValueShift << "\n";
os << indent << "ValueScale: " << this->ValueScale << "\n";
}
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