/*=========================================================================
                                                                                
  Program:   bbtk
  Module:    $RCSfile: bbvtkMIPCreator.cxx,v $
  Language:  C++
  Date:      $Date: 2008/05/09 10:39:47 $
  Version:   $Revision: 1.3 $
                                                                                
  Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
  l'Image). All rights reserved. See Doc/License.txt or
  http://www.creatis.insa-lyon.fr/Public/bbtk/License.html 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 notices for more information.
                                                                                
=========================================================================*/
/**
 *  \file 
 *  \brief 
 */



#ifdef _USE_VTK_


#include "bbvtkMIPCreator.h"
#include "bbvtkPackage.h"

namespace bbvtk
{


   BBTK_ADD_BLACK_BOX_TO_PACKAGE(vtk,MIPCreator)
   BBTK_BLACK_BOX_IMPLEMENTATION(MIPCreator,bbtk::AtomicBlackBox);





   void MIPCreator::bbUserConstructor() 
   { 
     Init();
     bbSetInputShift(0);
     bbSetInputScale(1.);
   }
   void MIPCreator::bbUserCopyConstructor() 
   { 
     Init();
   }

   void MIPCreator::Init() 
   { 

    // Create the pipeline
    mCast = vtkImageShiftScale::New();
    mCast->SetOutputScalarTypeToUnsignedChar();
    mCast->ClampOverflowOn();
    
    mMIP = vtkVolumeRayCastMIPFunction::New();
    mMIP->SetMaximizeMethodToScalarValue();
    
    mMapper = vtkVolumeRayCastMapper::New();
    mMapper->SetVolumeRayCastFunction(mMIP);
    mMapper->SetInput(mCast->GetOutput()); // (smoother.GetOutput())
    
    mVolume = vtkVolume::New();
    mVolume->SetMapper(mMapper);

    //  mMapper->ScalarVisibilityOff();
    //    mMapper->ImmediateModeRenderingOn();

    bbSetOutputOut(mVolume);
}

   void MIPCreator::bbUserDestructor() 
   { 
     mCast->Delete();
     mMIP->Delete();
     mMapper->Delete();
     mVolume->Delete();

   }
//---------------------------------------------------------------------

   void MIPCreator::Process()
   {
     mCast->SetInput( bbGetInputIn() );
     mCast->SetScale( bbGetInputScale() / 100. );
     mCast->SetShift( -bbGetInputShift() );

     mMapper->Update();
     
     //     mVolume->GetProperty()->SetColor( bbGetInputColour()[0],  bbGetInputColour()[1], bbGetInputColour()[2] );
     //     mVolume->GetProperty()->SetOpacity( bbGetInputOpacity() );
     
   }
}//namespace bbtk

#endif // _USE_VTK_