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/*=========================================================================
Program: Visualization Toolkit
Module: vtkMatrixToLinearTransform.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.
=========================================================================*/
#include "vtkMatrixToLinearTransform.h"
#include "vtkMatrix4x4.h"
#include "vtkObjectFactory.h"
vtkStandardNewMacro(vtkMatrixToLinearTransform);
vtkCxxSetObjectMacro(vtkMatrixToLinearTransform,Input,vtkMatrix4x4);
//----------------------------------------------------------------------------
vtkMatrixToLinearTransform::vtkMatrixToLinearTransform()
{
this->Input = NULL;
this->InverseFlag = 0;
}
//----------------------------------------------------------------------------
vtkMatrixToLinearTransform::~vtkMatrixToLinearTransform()
{
this->SetInput(NULL);
}
//----------------------------------------------------------------------------
void vtkMatrixToLinearTransform::PrintSelf(ostream& os, vtkIndent indent)
{
this->Update();
this->Superclass::PrintSelf(os, indent);
os << indent << "Input: " << this->Input << "\n";
os << indent << "InverseFlag: " << this->InverseFlag << "\n";
}
//----------------------------------------------------------------------------
void vtkMatrixToLinearTransform::Inverse()
{
this->InverseFlag = !this->InverseFlag;
this->Modified();
}
//----------------------------------------------------------------------------
void vtkMatrixToLinearTransform::InternalUpdate()
{
if (this->Input)
{
this->Matrix->DeepCopy(this->Input);
if (this->InverseFlag)
{
this->Matrix->Invert();
}
}
else
{
this->Matrix->Identity();
}
}
//----------------------------------------------------------------------------
void vtkMatrixToLinearTransform::InternalDeepCopy(vtkAbstractTransform *gtrans)
{
vtkMatrixToLinearTransform *transform =
static_cast<vtkMatrixToLinearTransform *>(gtrans);
this->SetInput(transform->Input);
if (this->InverseFlag != transform->InverseFlag)
{
this->Inverse();
}
}
//----------------------------------------------------------------------------
vtkAbstractTransform *vtkMatrixToLinearTransform::MakeTransform()
{
return vtkMatrixToLinearTransform::New();
}
//----------------------------------------------------------------------------
// Get the MTime
unsigned long vtkMatrixToLinearTransform::GetMTime()
{
unsigned long mtime = this->vtkLinearTransform::GetMTime();
if (this->Input)
{
unsigned long matrixMTime = this->Input->GetMTime();
if (matrixMTime > mtime)
{
return matrixMTime;
}
}
return mtime;
}
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