ENH: Giving access to parameter accessor so as to be able to pass some accessor parameters

Utilities/InsightJournal/itkAttributeOpeningLabelMapFilter.h

@@ -94,6 +94,17 @@ public:
   itkSetMacro( ReverseOrdering, bool );
   itkBooleanMacro( ReverseOrdering );
 
+  AttributeAccessorType & GetAccessor()
+  {
+    return m_Accessor;
+  }
+
+  void SetAccessor(const AttributeAccessorType& accessor)
+  {
+    m_Accessor = accessor;
+    this->Modified();
+  }
+
 protected:
   AttributeOpeningLabelMapFilter();
   ~AttributeOpeningLabelMapFilter() {};
@@ -108,6 +119,7 @@ private:
 
   AttributeValueType m_Lambda;
   bool m_ReverseOrdering;
+  AttributeAccessorType m_Accessor;
 
 } ; // end of class
 

Utilities/InsightJournal/itkAttributeOpeningLabelMapFilter.txx

@@ -42,8 +42,6 @@ AttributeOpeningLabelMapFilter<TImage, TAttributeAccessor>
 
   ImageType * output = this->GetOutput();
 
-  AttributeAccessorType accessor;
-
   const typename ImageType::LabelObjectContainerType & labelObjectContainer = output->GetLabelObjectContainer();
 
   ProgressReporter progress( this, 0, labelObjectContainer.size() );
@@ -55,8 +53,8 @@ AttributeOpeningLabelMapFilter<TImage, TAttributeAccessor>
     typename LabelObjectType::LabelType label = it->first;
     LabelObjectType * labelObject = it->second;
 
-    if( ( !m_ReverseOrdering && accessor( labelObject ) < m_Lambda )
-      || ( m_ReverseOrdering && accessor( labelObject ) > m_Lambda ) )
+    if( ( !m_ReverseOrdering && m_Accessor( labelObject ) < m_Lambda )
+      || ( m_ReverseOrdering && m_Accessor( labelObject ) > m_Lambda ) )
       {
       // must increment the iterator before removing the object to avoid invalidating the iterator
       it++;