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[FrontAlgorithms.git] / lib / fpa / Base / Dijkstra.hxx

diff --git a/lib/fpa/Base/Dijkstra.hxx b/lib/fpa/Base/Dijkstra.hxx
index 4920ab551628489db9f03d42660ba408e40b31df..be3598173de4c74d81334389ec930ff4b637b120 100644 (file)
--- a/lib/fpa/Base/Dijkstra.hxx
+++ b/lib/fpa/Base/Dijkstra.hxx
@@ -1,95 +1,85 @@
-#ifndef __FPA__BASE__DIJKSTRA__HXX__
-#define __FPA__BASE__DIJKSTRA__HXX__
+// =========================================================================
+// @author Leonardo Florez Valencia
+// @email florez-l@javeriana.edu.co
+// =========================================================================
 
-#include <algorithm>
+#ifndef __fpa__Base__Dijkstra__hxx__
+#define __fpa__Base__Dijkstra__hxx__
 
 // -------------------------------------------------------------------------
-template< class V, class C, class VV, class VC, class B >
-fpa::Base::Dijkstra< V, C, VV, VC, B >::
-Dijkstra( )
-  : Superclass( )
+template< class _TAlgorithm, class _TMST >
+typename fpa::Base::Dijkstra< _TAlgorithm, _TMST >::
+TMST* fpa::Base::Dijkstra< _TAlgorithm, _TMST >::
+GetMinimumSpanningTree( )
 {
+  return(
+    dynamic_cast< TMST* >(
+      this->itk::ProcessObject::GetOutput( this->m_MSTIdx )
+      )
+    );
 }
 
 // -------------------------------------------------------------------------
-template< class V, class C, class VV, class VC, class B >
-fpa::Base::Dijkstra< V, C, VV, VC, B >::
-~Dijkstra( )
+template< class _TAlgorithm, class _TMST >
+const typename fpa::Base::Dijkstra< _TAlgorithm, _TMST >::
+TMST* fpa::Base::Dijkstra< _TAlgorithm, _TMST >::
+GetMinimumSpanningTree( ) const
 {
+  return(
+    dynamic_cast< const TMST* >(
+      this->itk::ProcessObject::GetOutput( this->m_MSTIdx )
+      )
+    );
 }
 
 // -------------------------------------------------------------------------
-template< class V, class C, class VV, class VC, class B >
-void fpa::Base::Dijkstra< V, C, VV, VC, B >::
-_InitializeQueue( )
+template< class _TAlgorithm, class _TMST >
+fpa::Base::Dijkstra< _TAlgorithm, _TMST >::
+Dijkstra( )
+  : Superclass( )
 {
-  for(
-    typename _TNodes::const_iterator vIt = this->m_Seeds.begin( );
-    vIt != this->m_Seeds.end( );
-    vIt++
-    )
-    this->_QueuePush( *vIt );
+  this->m_MSTIdx = this->GetNumberOfRequiredOutputs( );
+  this->itk::ProcessObject::SetNumberOfRequiredOutputs( this->m_MSTIdx + 1 );
+  this->SetNthOutput( this->m_MSTIdx, TMST::New( ) );
 }
 
 // -------------------------------------------------------------------------
-template< class V, class C, class VV, class VC, class B >
-bool fpa::Base::Dijkstra< V, C, VV, VC, B >::
-_IsQueueEmpty( ) const
+template< class _TAlgorithm, class _TMST >
+fpa::Base::Dijkstra< _TAlgorithm, _TMST >::
+~Dijkstra( )
 {
-  return( this->m_Queue.empty( ) );
 }
 
 // -------------------------------------------------------------------------
-template< class V, class C, class VV, class VC, class B >
-void fpa::Base::Dijkstra< V, C, VV, VC, B >::
-_QueuePush( const _TNode& n )
+template< class _TAlgorithm, class _TMST >
+void fpa::Base::Dijkstra< _TAlgorithm, _TMST >::
+_AfterGenerateData( )
 {
-  this->m_Queue.push_back( n );
-  std::push_heap( this->m_Queue.begin( ), this->m_Queue.end( ) );
-}
+  this->Superclass::_AfterGenerateData( );
 
-// -------------------------------------------------------------------------
-template< class V, class C, class VV, class VC, class B >
-typename fpa::Base::Dijkstra< V, C, VV, VC, B >::
-_TNode fpa::Base::Dijkstra< V, C, VV, VC, B >::
-_QueuePop( )
-{
-  _TNode n;
-  if( !( this->m_Queue.empty( ) ) )
+  TMST* mst = this->GetMinimumSpanningTree( );
+  mst->ClearSeeds( );
+  mst->SetCollisions( this->m_Collisions );
+
+  TSeeds seeds = this->GetSeeds( );
+  typename TSeeds::const_iterator sIt = seeds.begin( );
+  for( ; sIt != seeds.end( ); ++sIt )
   {
-    // n = *( this->m_Queue.begin( ) );
-    n = this->m_Queue.front( );
-    std::pop_heap( this->m_Queue.begin( ), this->m_Queue.end( ) );
-    this->m_Queue.pop_back( );
+    if( sIt->IsUnified )
+      mst->AddSeed( sIt->Vertex );
 
-  } // fi
-  return( n );
+  } // rof
 }
 
 // -------------------------------------------------------------------------
-template< class V, class C, class VV, class VC, class B >
-void fpa::Base::Dijkstra< V, C, VV, VC, B >::
-_QueueClear( )
+template< class _TAlgorithm, class _TMST >
+void fpa::Base::Dijkstra< _TAlgorithm, _TMST >::
+_UpdateOutputValue( const TNode& n )
 {
-  this->m_Queue.clear( );
-}
-
-// -------------------------------------------------------------------------
-template< class V, class C, class VV, class VC, class B >
-bool fpa::Base::Dijkstra< V, C, VV, VC, B >::
-_UpdateNeigh( _TNode& nn, const _TNode& n )
-{
-  TCost nc = this->_Cost( nn.Vertex, n.Vertex );
-  if( C( 0 ) <= nc )
-  {
-    nn.Cost = n.Cost + nc;
-    nn.Result = nn.Cost;
-    return( true );
-  }
-  else
-    return( false );
+  this->Superclass::_UpdateOutputValue( n );
+  this->GetMinimumSpanningTree( )->SetParent( n.Vertex, n.Parent );
 }
 
-#endif // __FPA__BASE__DIJKSTRA__HXX__
+#endif // __fpa__Base__Dijkstra__hxx__
 
 // eof - $RCSfile$