PotentialDifferenceMap returns the difference between the potentials of the source and target nodes of each arc in a digraph, i.e. it returns
| GR | The digraph type. | 
| POT | A node map storing the potentials. | 
#include <lemon/maps.h>
| Public Types | |
| typedef GR::Arc | Key | 
| Key type. | |
| typedef POT::Value | Value | 
| Value type. | |
| Public Member Functions | |
| PotentialDifferenceMap (const GR &gr, const POT &potential) | |
| Constructor.  More... | |
| Value | operator[] (const Key &arc) const | 
| Returns the potential difference for the given arc.  More... | |
| Related Functions | |
| (Note that these are not member functions.) | |
| template<typename GR , typename POT > | |
| PotentialDifferenceMap< GR, POT > | potentialDifferenceMap (const GR &gr, const POT &potential) | 
| Returns a PotentialDifferenceMap.  More... | |
| 
 | inlineexplicit | 
Contructor of the map.
 1.8.5
 1.8.5