packages/vtk/src/bbvtkMIPCreator.cxx

   1 /*=========================================================================
   2   Program:   bbtk
   3   Module:    $RCSfile: bbvtkMIPCreator.cxx,v $
   4   Language:  C++
   5   Date:      $Date: 2011/03/23 15:26:55 $
   6   Version:   $Revision: 1.9 $
   7 =========================================================================*/
   8
   9 /* ---------------------------------------------------------------------
  10
  11 * Copyright (c) CREATIS-LRMN (Centre de Recherche en Imagerie Medicale)
  12 * Authors : Eduardo Davila, Laurent Guigues, Jean-Pierre Roux
  13 *
  14 *  This software is governed by the CeCILL-B license under French law and
  15 *  abiding by the rules of distribution of free software. You can  use,
  16 *  modify and/ or redistribute the software under the terms of the CeCILL-B
  17 *  license as circulated by CEA, CNRS and INRIA at the following URL
  18 *  http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html
  19 *  or in the file LICENSE.txt.
  20 *
  21 *  As a counterpart to the access to the source code and  rights to copy,
  22 *  modify and redistribute granted by the license, users are provided only
  23 *  with a limited warranty  and the software's author,  the holder of the
  24 *  economic rights,  and the successive licensors  have only  limited
  25 *  liability.
  26 *
  27 *  The fact that you are presently reading this means that you have had
  28 *  knowledge of the CeCILL-B license and that you accept its terms.
  29 * ------------------------------------------------------------------------ */
  30
  31 /**
  32  *  \file
  33  *  \brief
  34  */
  35
  36 #ifdef _USE_VTK_
  37
  38 #include <vtkVolumeProperty.h>
  39 #include <vtkPiecewiseFunction.h>
  40
  41 #include "bbvtkMIPCreator.h"
  42 #include "bbvtkPackage.h"
  43
  44 namespace bbvtk
  45 {
  46    BBTK_ADD_BLACK_BOX_TO_PACKAGE(vtk,MIPCreator)
  47    BBTK_BLACK_BOX_IMPLEMENTATION(MIPCreator,bbtk::AtomicBlackBox);
  48
  49         //---------------------------------------------------------------------
  50    void MIPCreator::bbUserSetDefaultValues()
  51    {
  52
  53
  54            std::vector<double> denPoints;
  55        std::vector<double> opaValues;
  56        denPoints.push_back(0.0);
  57        denPoints.push_back(255.0);
  58        opaValues.push_back(0.0);
  59        opaValues.push_back(1.0);
  60        bbSetInputDensityPoints(denPoints);
  61        bbSetInputOpacityValues(opaValues);
  62        bbSetInputMinColorWindow(0.0);
  63        bbSetInputMaxColorWindow(255.0);
  64
  65        opacityTransferFunction = vtkPiecewiseFunction::New();
  66        grayTransferFunction = vtkPiecewiseFunction::New();
  67
  68            mCast        = NULL;
  69            mMIP         = NULL;
  70            mMapper      = NULL;
  71            mVolume      = NULL;
  72
  73
  74    }
  75         //---------------------------------------------------------------------
  76    void MIPCreator::bbUserInitializeProcessing()
  77    {
  78
  79
  80     // Create the pipeline
  81     mCast = vtkImageShiftScale::New();
  82     mCast->SetOutputScalarTypeToUnsignedChar();
  83     mCast->ClampOverflowOn();
  84
  85      DensityPoints = bbGetInputDensityPoints();
  86      OpacityValues = bbGetInputOpacityValues();
  87
  88      while(DensityPoints.size()>OpacityValues.size())
  89      {
  90          OpacityValues.push_back(1.0);
  91      }
  92
  93 }
  94
  95 //---------------------------------------------------------------------
  96    void MIPCreator::bbUserFinalizeProcessing()
  97    {
  98            if (mCast!=NULL)
  99            {
 100                    mCast->Delete();
 101                    mCast=NULL;
 102            }
 103
 104            if (mMIP!=NULL)
 105            {
 106                    mMIP->Delete();
 107                    mMIP=NULL;
 108            }
 109
 110            if (mMapper!=NULL)
 111            {
 112                    mMapper->Delete();
 113                    mMapper=NULL;
 114            }
 115
 116            if (mVolume!=NULL)
 117            {
 118                    mVolume->Delete();
 119                    mVolume=NULL;
 120            }
 121    }
 122 //---------------------------------------------------------------------
 123
 124    void MIPCreator::Process()
 125    {
 126
 127
 128
 129         double ranges[2];
 130         vtkImageData *image =  bbGetInputIn();
 131         image->Update();
 132         image->GetScalarRange(ranges);
 133
 134            scale = 255/(ranges[1]/100);
 135
 136        mCast->SetInput( bbGetInputIn() );
 137        mCast->SetScale( scale / 100.0 );
 138      //mCast->SetShift( -bbGetInputShift() );
 139
 140
 141         double factor = scale/ 100.0 ;
 142
 143
 144        double minCF = bbGetInputMinColorWindow();
 145        double maxCF = bbGetInputMaxColorWindow();
 146         cout<<"MIPCreator::Process::minCF"<<minCF <<endl;
 147         cout<<"MIPCreator::Process::maxCF"<<maxCF <<endl;
 148        grayTransferFunction->AddSegment( minCF , 0.0 , maxCF , 1.0 );
 149
 150
 151
 152         for(int i =0; i< DensityPoints.size(); i++)
 153         {
 154
 155             opacityTransferFunction->AddPoint(DensityPoints.at(i)*factor, OpacityValues.at(i));
 156         }
 157            //opacityTransferFunction = vtkPiecewiseFunction::New();
 158 //         opacityTransferFunction->AddPoint(   0 ,    0.0/100.0 );
 159 //         opacityTransferFunction->AddPoint(  85 ,    2.0/100.0 );
 160 //         opacityTransferFunction->AddPoint( 160 ,   25.0/100.0 );
 161 //         opacityTransferFunction->AddPoint( 210 ,   50.0/100.0 );
 162 //         opacityTransferFunction->AddPoint( 255 ,   90.0/100.0 );
 163
 164
 165
 166            // Create a set of properties for mip
 167            vtkVolumeProperty *mipProperty;
 168            mipProperty = vtkVolumeProperty::New();
 169            mipProperty->SetScalarOpacity( opacityTransferFunction );
 170            mipProperty->SetColor( grayTransferFunction );
 171
 172 //         mipProperty->SetInterpolationTypeToLinear();
 173            mipProperty->SetInterpolationTypeToNearest();
 174
 175 //         mipProperty->ShadeOff();
 176            mipProperty->ShadeOn();
 177
 178 //         mipProperty->SetAmbient(0.9);
 179 //         mipProperty->SetDiffuse(0.9);
 180 //         mipProperty->SetSpecular(0.9);
 181
 182
 183
 184
 185
 186         mMIP = vtkVolumeRayCastMIPFunction::New();
 187         mMIP->SetMaximizeMethodToScalarValue();
 188
 189         mMapper = vtkVolumeRayCastMapper::New();
 190         mMapper->SetVolumeRayCastFunction(mMIP);
 191         mMapper->SetInput(mCast->GetOutput()); // (smoother.GetOutput())
 192
 193         mVolume = vtkVolume::New();
 194         mVolume->SetMapper(mMapper);
 195         mVolume->SetProperty( mipProperty );
 196
 197
 198
 199         mMapper->Update();
 200
 201       bbSetOutputOut(mVolume);
 202      //     mVolume->GetProperty()->SetColor( bbGetInputColour()[0],  bbGetInputColour()[1], bbGetInputColour()[2] );
 203      //     mVolume->GetProperty()->SetOpacity( bbGetInputOpacity() );
 204
 205
 206    }
 207 }//namespace bbtk
 208
 209 #endif // _USE_VTK_
 210