finally unused because too slow
| 434 | |
| 435 | // finally unused because too slow |
| 436 | inline ArcsType getSource(const ArcsType arc) const |
| 437 | { |
| 438 | //ArcsType a = _source[arc]; |
| 439 | //return a; |
| 440 | |
| 441 | ArcsType n = _arc_num - arc - 1; |
| 442 | if (_arc_mixing) |
| 443 | n = mixingCoeff*(n%mixingCoeff) + n / mixingCoeff; |
| 444 | |
| 445 | ArcsType b; |
| 446 | if (n >= 0) |
| 447 | b = _node_id(_graph.source(GR::arcFromId(n))); |
| 448 | else |
| 449 | { |
| 450 | n = arc + 1 - _arc_num; |
| 451 | if (n <= _node_num) |
| 452 | b = _node_num; |
| 453 | else |
| 454 | if (n >= _graph._n1) |
| 455 | b = _graph._n1; |
| 456 | else |
| 457 | b = _graph._n1 - n; |
| 458 | } |
| 459 | |
| 460 | return b; |
| 461 | } |
| 462 | |
| 463 | |
| 464 |