Adjusts the columns of nodes within the unfixedLayer in order to move nodes towards their median columns. The direction argument indicates which of the adjacent layers should be taken into consideration when computing the median column. The idea is shift nodes to the left and to the right to move nodes towards their median columns, ensuring that no two nodes have overlapping "allocations" of columns. Returns true if some change was made to the layer.

'Declaration
 
Protected Overridable Function MedianStraighten( _
   ByVal unfixedLayer As Integer, _
   ByVal direction As Integer _
) As Boolean

protected virtual bool MedianStraighten( 
   int unfixedLayer,
   int direction
)