Edge type and functions to get the end nodes of edges, to convert from arcs to edges and to get both direction of edges. #include <lemon/concepts/graph_components.h>

Classes | |
| class | Edge |
| Undirected edge class of the graph. More... | |
Public Member Functions | |
| Node | u (const Edge &) const |
| Return one end node of an edge. | |
| Node | v (const Edge &) const |
| Return the other end node of an edge. | |
| Arc | direct (const Edge &, bool) const |
| Return a directed arc related to an edge. | |
| Arc | direct (const Edge &, const Node &) const |
| Return a directed arc related to an edge. | |
| bool | direction (const Arc &) const |
| Return the direction of the arc. | |
| Arc | oppositeArc (const Arc &) const |
| Return the opposite arc. | |
This function returns a directed arc from its direction and the represented edge.
This function returns a directed arc from its source node and the represented edge.
| bool direction | ( | const Arc & | ) | const [inline] |
Returns the direction of the arc. Each arc represents an edge with a direction. It gives back the direction.
This function returns the opposite arc, i.e. the arc representing the same edge and has opposite direction.