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[bbtk.git] / packages / vtk / src / bbvtkPiecewiseFunction.cxx

diff --git a/packages/vtk/src/bbvtkPiecewiseFunction.cxx b/packages/vtk/src/bbvtkPiecewiseFunction.cxx
new file mode 100644 (file)
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+++ b/packages/vtk/src/bbvtkPiecewiseFunction.cxx
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+/*=========================================================================                                                                               
+  Program:   bbtk
+  Module:    $RCSfile: bbvtkPiecewiseFunction.cxx,v $
+  Language:  C++
+  Date:      $Date: 2008/12/16 12:48:10 $
+  Version:   $Revision: 1.1 $
+=========================================================================*/
+
+/* ---------------------------------------------------------------------
+
+* Copyright (c) CREATIS-LRMN (Centre de Recherche en Imagerie Medicale)
+* Authors : Eduardo Davila, Laurent Guigues, Jean-Pierre Roux
+*
+*  This software is governed by the CeCILL-B license under French law and 
+*  abiding by the rules of distribution of free software. You can  use, 
+*  modify and/ or redistribute the software under the terms of the CeCILL-B 
+*  license as circulated by CEA, CNRS and INRIA at the following URL 
+*  http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html 
+*  or in the file LICENSE.txt.
+*
+*  As a counterpart to the access to the source code and  rights to copy,
+*  modify and redistribute granted by the license, users are provided only
+*  with a limited warranty  and the software's author,  the holder of the
+*  economic rights,  and the successive licensors  have only  limited
+*  liability. 
+*
+*  The fact that you are presently reading this means that you have had
+*  knowledge of the CeCILL-B license and that you accept its terms.
+* ------------------------------------------------------------------------ */                                                                         
+
+/**
+ *  \file 
+ *  \brief 
+ */
+
+
+
+#ifdef _USE_VTK_
+
+
+#include "bbvtkPiecewiseFunction.h"
+#include "bbvtkPackage.h"
+
+namespace bbvtk
+{
+
+
+   BBTK_ADD_BLACK_BOX_TO_PACKAGE(vtk,PiecewiseFunction)
+   BBTK_BLACK_BOX_IMPLEMENTATION(PiecewiseFunction,bbtk::AtomicBlackBox);
+
+
+
+
+
+   void PiecewiseFunction::bbUserConstructor() 
+   { 
+     Init();
+     // Identity function
+     std::vector<float> x,y;
+     x.push_back(0);
+     x.push_back(1);
+     y.push_back(0);
+     y.push_back(1);
+     bbSetInputX(x);
+     bbSetInputY(y);
+   }
+   void PiecewiseFunction::bbUserCopyConstructor(bbtk::BlackBox::Pointer) 
+   { 
+     Init();
+   }
+
+   void PiecewiseFunction::Init() 
+   { 
+     bbSetOutputOut(vtkPiecewiseFunction::New());
+   }
+
+   void PiecewiseFunction::bbUserDestructor() 
+   { 
+     bbGetOutputOut()->Delete();
+   }
+//---------------------------------------------------------------------
+
+   void PiecewiseFunction::Process()
+   {
+     if ( ( bbGetInputStatus("X") != bbtk::UPTODATE ) || 
+         ( bbGetInputStatus("Y") != bbtk::UPTODATE ) )
+       {
+        if  ( bbGetInputX().size() != bbGetInputY().size() ) 
+          bbtkError(bbGetFullName()
+                    <<" : input vectors X and Y do not have the same size"); 
+        if  ( bbGetInputX().size() < 2 ) 
+          bbtkError(bbGetFullName()
+                    <<" : input vectors X and Y have a size < 2"); 
+        bbGetOutputOut()->RemoveAllPoints ();
+        //      std::cout << bbGetInputX().size()<< ","<< bbGetInputY().size()<< std::endl;
+        std::vector<float>::const_iterator x,y;
+        std::vector<float> X = bbGetInputX(); 
+        std::vector<float> Y = bbGetInputY(); 
+        for (x = X.begin(), y = Y.begin();
+             x != X.end(),  y != Y.end();
+             ++x, ++y )
+          {
+            //              std::cout << *x << " -> " << *y << std::endl;
+            bbGetOutputOut()->AddPoint(*x,*y);
+          }
+       }
+   }
+
+}//namespace bbtk
+
+#endif // _USE_VTK_
+