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75 lines
2.4 KiB
75 lines
2.4 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkPiecewiseFunctionShiftScale.cxx,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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#include "vtkPiecewiseFunctionShiftScale.h"
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#include "vtkInformation.h"
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#include "vtkInformationVector.h"
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#include "vtkObjectFactory.h"
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#include "vtkPiecewiseFunction.h"
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vtkCxxRevisionMacro(vtkPiecewiseFunctionShiftScale, "$Revision: 1.6 $");
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vtkStandardNewMacro(vtkPiecewiseFunctionShiftScale);
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vtkPiecewiseFunctionShiftScale::vtkPiecewiseFunctionShiftScale()
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{
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this->PositionShift = 0.0;
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this->PositionScale = 1.0;
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this->ValueShift = 0.0;
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this->ValueScale = 1.0;
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}
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vtkPiecewiseFunctionShiftScale::~vtkPiecewiseFunctionShiftScale()
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{
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}
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int vtkPiecewiseFunctionShiftScale::RequestData(
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vtkInformation *,
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vtkInformationVector **inputVector,
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vtkInformationVector *outputVector)
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{
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vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
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vtkInformation *outInfo = outputVector->GetInformationObject(0);
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vtkPiecewiseFunction *input = vtkPiecewiseFunction::SafeDownCast(
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inInfo->Get(vtkDataObject::DATA_OBJECT()));
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vtkPiecewiseFunction *output = vtkPiecewiseFunction::SafeDownCast(
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outInfo->Get(vtkDataObject::DATA_OBJECT()));
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double *inFunction = input->GetDataPointer();
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int numInValues = input->GetSize();
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output->RemoveAllPoints();
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int i;
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for (i = 0; i < numInValues; i++)
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{
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output->AddPoint((inFunction[2*i] + this->PositionShift) *
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this->PositionScale,
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(inFunction[2*i+1] + this->ValueShift) *
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this->ValueScale);
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}
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return 1;
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}
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void vtkPiecewiseFunctionShiftScale::PrintSelf(ostream& os, vtkIndent indent)
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{
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this->Superclass::PrintSelf(os, indent);
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os << indent << "PositionShift: " << this->PositionShift << "\n";
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os << indent << "PositionScale: " << this->PositionScale << "\n";
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os << indent << "ValueShift: " << this->ValueShift << "\n";
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os << indent << "ValueScale: " << this->ValueScale << "\n";
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}
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