yet another refactoring

[cpPlugins.git] / lib / cpExtensions / Algorithms / MFluxMedialness.hxx

diff --git a/lib/cpExtensions/Algorithms/MFluxMedialness.hxx b/lib/cpExtensions/Algorithms/MFluxMedialness.hxx
new file mode 100644 (file)
index 0000000..bc5db37
--- /dev/null
+++ b/lib/cpExtensions/Algorithms/MFluxMedialness.hxx
@@ -0,0 +1,159 @@
+#ifndef __CPEXTENSIONS__ALGORITHMS__MFLUXMEDIALNESS__HXX__
+#define __CPEXTENSIONS__ALGORITHMS__MFLUXMEDIALNESS__HXX__
+
+#include <cmath>
+#include <vnl/vnl_math.h>
+#include <itkLineConstIterator.h>
+
+// -------------------------------------------------------------------------
+template< class _TGradient, class _TMask >
+cpExtensions::Algorithms::MFluxMedialness< _TGradient, _TMask >::
+MFluxMedialness( )
+  : Superclass( ),
+    m_MinRadius( double( 0 ) ),
+    m_MaxRadius( double( 1 ) ),
+    m_RadialSampling( 4 ),
+    m_RadiusStep( double( 1 ) )
+{
+}
+
+// -------------------------------------------------------------------------
+template< class _TGradient, class _TMask >
+cpExtensions::Algorithms::MFluxMedialness< _TGradient, _TMask >::
+~MFluxMedialness( )
+{
+}
+
+// -------------------------------------------------------------------------
+template< class _TGradient, class _TMask >
+typename cpExtensions::Algorithms::MFluxMedialness< _TGradient, _TMask >::
+TOutput cpExtensions::Algorithms::MFluxMedialness< _TGradient, _TMask >::
+_Evaluate( const TIndex& i ) const
+{
+  itk::Object::GlobalWarningDisplayOff( );
+
+  double pi2n = double( 2 ) * double( vnl_math::pi );
+  pi2n /= int( this->m_RadialSampling );
+  const _TGradient* img = this->GetInputImage( );
+  //const itk::Image::SpacingType& input_spacing = img->GetSpacing( );
+
+  double Flux1 = 0;
+  double Flux2 = 0;
+  double MFlux = 0;
+
+  TRCandidates FluxFinal;
+  TRCandidates radiusGenerated;
+  double dR = double( 0 );
+  double optR = double( 0 );
+  TPoint center;
+  img->TransformIndexToPhysicalPoint( i, center );
+  double radius;
+
+  for( unsigned int cx = 0; cx < Self::Dimension - 1; cx++ )
+  {
+    for( unsigned int cy = cx + 1; cy < Self::Dimension; cy++ )
+    {
+      dR = double( 0 );
+      FluxFinal.clear();
+      radiusGenerated.clear();
+      radius = this->m_MinRadius;
+      while( radius <= this->m_MaxRadius )
+      {
+        MFlux = 0;
+        for( unsigned int I_radial = 0; I_radial < this->m_RadialSampling / 2; I_radial++ )
+        {
+          Flux1 = 0;
+          Flux2 = 0;
+
+          // Direction of first profile
+          typename TPoint::VectorType dir1;
+          dir1.Fill( double( 0 ) );
+          dir1[ cx ] = std::cos( pi2n * double( I_radial ) );
+          dir1[ cy ] = std::sin( pi2n * double( I_radial ) );
+          //dir1 *= (radius);
+
+          TIndex rIdx;
+
+          if ( img->TransformPhysicalPointToIndex( center + (dir1*radius), rIdx ) )
+          {
+            TVector grad_rIdx = img->GetPixel( rIdx );
+            TVector u_i1;
+            u_i1.SetVnlVector( ( center - ( center + dir1 ) ).GetVnlVector( ) );
+            u_i1.Normalize( );
+            // dot product
+            Flux1 = grad_rIdx * u_i1;
+          }
+          else
+          {
+            //if (Self::Dimension==3)
+            //{
+            //std::cout<<"Point Edge x:"<<center[0]+dir1[0] ;
+            //std::cout<<" y:"<<center[1]+dir1[1]<<" z:"<<center[2]+dir1[2]<<std::endl;
+            //}
+            //else if (Self::Dimension==2)
+            //{
+            //std::cout<<"Point Edge x:"<<center[0]+dir1[0] ;
+            //std::cout<<" y:"<<center[1]+dir1[1]<<std::endl;
+            //}
+          }
+
+          // Direction of second profile
+          // pi2n*Iradial + 180°
+          typename TPoint::VectorType dir2;
+          dir2.Fill( double( 0 ) );
+          dir2[ cx ] =  std::cos( (pi2n) * double( I_radial ) + double( vnl_math::pi ));
+          dir2[ cy ] =  std::sin( (pi2n) * double( I_radial ) + double( vnl_math::pi ));
+
+          TIndex rIdx2;
+
+          if ( img->TransformPhysicalPointToIndex( center + (dir2*radius), rIdx2 ) )
+          {
+            TVector grad_rIdx2 = img->GetPixel( rIdx2 );
+            TVector u_i2;
+            u_i2.SetVnlVector( ( center - ( center + dir2 ) ).GetVnlVector( ) );
+            u_i2.Normalize( );
+
+            Flux2 = grad_rIdx2 * u_i2;
+          }
+          else
+          {
+            //if (Self::Dimension==3)
+            //{
+            //std::cout<<"Point Edge x:"<<center[0]+dir2[0] ;
+            //std::cout<<" y:"<<center[1]+dir2[1]<<" z:"<<center[2]+dir2[2]<<std::endl;
+            //}
+            //else if (Self::Dimension==2)
+            //{
+            //std::cout<<"Point Edge x:"<<center[0]+dir2[0] ;
+            //std::cout<<" y:"<<center[1]+dir2[1]<<std::endl;
+            //}
+          }
+
+          MFlux += std::min( Flux1, Flux2 );
+        } // rof
+
+        //std::cout<<Self::Dimension<<" radius:"<<radius<<std::endl;
+        //std::cout<<"Center:"<<center[0]<<" "<<center[1]<<std::endl;
+        //std::cout<<"edge:"<<center[0]+radius*std::cos( pi2n * double( 0 ) )<<std::endl;
+
+        MFlux *= 2;
+        MFlux /= this->m_RadialSampling;
+        FluxFinal.push_back(MFlux);
+        radiusGenerated.push_back(radius);
+
+        radius += this->m_RadiusStep;
+
+      }     //elihw
+
+      dR= *( std::max_element( FluxFinal.begin(), FluxFinal.end() ) );
+      optR= (dR>optR)? dR:optR;
+
+    } // rof
+
+  } // rof
+  return( TScalar(optR) );
+}
+
+#endif // __CPEXTENSIONS__ALGORITHMS__MFLUXMEDIALNESS__HXX__
+
+// eof - $RCSfile$