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kpeter (Peter Kovacs)
kpeter@inf.elte.hu
Handle graph changes in the MCF algorithms (#327) The reset() functions are renamed to resetParams() and the new reset() functions handle the graph chnages, as well.
0 5 0
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5 files changed with 423 insertions and 311 deletions:
↑ Collapse diff ↑
Ignore white space 2 line context
... ...
@@ -316,65 +316,3 @@
316 316

	
317
      // Resize vectors
318
      _node_num = countNodes(_graph);
319
      _arc_num = countArcs(_graph);
320
      _res_arc_num = 2 * (_arc_num + _node_num);
321
      _root = _node_num;
322
      ++_node_num;
323

	
324
      _first_out.resize(_node_num + 1);
325
      _forward.resize(_res_arc_num);
326
      _source.resize(_res_arc_num);
327
      _target.resize(_res_arc_num);
328
      _reverse.resize(_res_arc_num);
329

	
330
      _lower.resize(_res_arc_num);
331
      _upper.resize(_res_arc_num);
332
      _cost.resize(_res_arc_num);
333
      _supply.resize(_node_num);
334
      
335
      _res_cap.resize(_res_arc_num);
336
      _pi.resize(_node_num);
337
      _excess.resize(_node_num);
338
      _pred.resize(_node_num);
339

	
340
      // Copy the graph
341
      int i = 0, j = 0, k = 2 * _arc_num + _node_num - 1;
342
      for (NodeIt n(_graph); n != INVALID; ++n, ++i) {
343
        _node_id[n] = i;
344
      }
345
      i = 0;
346
      for (NodeIt n(_graph); n != INVALID; ++n, ++i) {
347
        _first_out[i] = j;
348
        for (OutArcIt a(_graph, n); a != INVALID; ++a, ++j) {
349
          _arc_idf[a] = j;
350
          _forward[j] = true;
351
          _source[j] = i;
352
          _target[j] = _node_id[_graph.runningNode(a)];
353
        }
354
        for (InArcIt a(_graph, n); a != INVALID; ++a, ++j) {
355
          _arc_idb[a] = j;
356
          _forward[j] = false;
357
          _source[j] = i;
358
          _target[j] = _node_id[_graph.runningNode(a)];
359
        }
360
        _forward[j] = false;
361
        _source[j] = i;
362
        _target[j] = _root;
363
        _reverse[j] = k;
364
        _forward[k] = true;
365
        _source[k] = _root;
366
        _target[k] = i;
367
        _reverse[k] = j;
368
        ++j; ++k;
369
      }
370
      _first_out[i] = j;
371
      _first_out[_node_num] = k;
372
      for (ArcIt a(_graph); a != INVALID; ++a) {
373
        int fi = _arc_idf[a];
374
        int bi = _arc_idb[a];
375
        _reverse[fi] = bi;
376
        _reverse[bi] = fi;
377
      }
378
      
379
      // Reset parameters
317
      // Reset data structures
380 318
      reset();
... ...
@@ -513,8 +451,8 @@
513 451
    ///
514
    /// This function can be called more than once. All the parameters
515
    /// that have been given are kept for the next call, unless
516
    /// \ref reset() is called, thus only the modified parameters
517
    /// have to be set again. See \ref reset() for examples.
518
    /// However, the underlying digraph must not be modified after this
519
    /// class have been constructed, since it copies and extends the graph.
452
    /// This function can be called more than once. All the given parameters
453
    /// are kept for the next call, unless \ref resetParams() or \ref reset()
454
    /// is used, thus only the modified parameters have to be set again.
455
    /// If the underlying digraph was also modified after the construction
456
    /// of the class (or the last \ref reset() call), then the \ref reset()
457
    /// function must be called.
520 458
    ///
... ...
@@ -535,2 +473,3 @@
535 473
    /// \see ProblemType
474
    /// \see resetParams(), reset()
536 475
    ProblemType run(int factor = 4) {
... ...
@@ -548,7 +487,8 @@
548 487
    ///
549
    /// It is useful for multiple run() calls. If this function is not
550
    /// used, all the parameters given before are kept for the next
551
    /// \ref run() call.
552
    /// However, the underlying digraph must not be modified after this
553
    /// class have been constructed, since it copies and extends the graph.
488
    /// It is useful for multiple \ref run() calls. Basically, all the given
489
    /// parameters are kept for the next \ref run() call, unless
490
    /// \ref resetParams() or \ref reset() is used.
491
    /// If the underlying digraph was also modified after the construction
492
    /// of the class or the last \ref reset() call, then the \ref reset()
493
    /// function must be used, otherwise \ref resetParams() is sufficient.
554 494
    ///
... ...
@@ -562,3 +502,3 @@
562 502
    ///
563
    ///   // Run again with modified cost map (reset() is not called,
503
    ///   // Run again with modified cost map (resetParams() is not called,
564 504
    ///   // so only the cost map have to be set again)
... ...
@@ -567,5 +507,5 @@
567 507
    ///
568
    ///   // Run again from scratch using reset()
508
    ///   // Run again from scratch using resetParams()
569 509
    ///   // (the lower bounds will be set to zero on all arcs)
570
    ///   cs.reset();
510
    ///   cs.resetParams();
571 511
    ///   cs.upperMap(capacity).costMap(cost)
... ...
@@ -575,3 +515,5 @@
575 515
    /// \return <tt>(*this)</tt>
576
    CapacityScaling& reset() {
516
    ///
517
    /// \see reset(), run()
518
    CapacityScaling& resetParams() {
577 519
      for (int i = 0; i != _node_num; ++i) {
... ...
@@ -588,2 +530,89 @@
588 530

	
531
    /// \brief Reset the internal data structures and all the parameters
532
    /// that have been given before.
533
    ///
534
    /// This function resets the internal data structures and all the
535
    /// paramaters that have been given before using functions \ref lowerMap(),
536
    /// \ref upperMap(), \ref costMap(), \ref supplyMap(), \ref stSupply().
537
    ///
538
    /// It is useful for multiple \ref run() calls. Basically, all the given
539
    /// parameters are kept for the next \ref run() call, unless
540
    /// \ref resetParams() or \ref reset() is used.
541
    /// If the underlying digraph was also modified after the construction
542
    /// of the class or the last \ref reset() call, then the \ref reset()
543
    /// function must be used, otherwise \ref resetParams() is sufficient.
544
    ///
545
    /// See \ref resetParams() for examples.
546
    ///
547
    /// \return <tt>(*this)</tt>
548
    ///
549
    /// \see resetParams(), run()
550
    CapacityScaling& reset() {
551
      // Resize vectors
552
      _node_num = countNodes(_graph);
553
      _arc_num = countArcs(_graph);
554
      _res_arc_num = 2 * (_arc_num + _node_num);
555
      _root = _node_num;
556
      ++_node_num;
557

	
558
      _first_out.resize(_node_num + 1);
559
      _forward.resize(_res_arc_num);
560
      _source.resize(_res_arc_num);
561
      _target.resize(_res_arc_num);
562
      _reverse.resize(_res_arc_num);
563

	
564
      _lower.resize(_res_arc_num);
565
      _upper.resize(_res_arc_num);
566
      _cost.resize(_res_arc_num);
567
      _supply.resize(_node_num);
568
      
569
      _res_cap.resize(_res_arc_num);
570
      _pi.resize(_node_num);
571
      _excess.resize(_node_num);
572
      _pred.resize(_node_num);
573

	
574
      // Copy the graph
575
      int i = 0, j = 0, k = 2 * _arc_num + _node_num - 1;
576
      for (NodeIt n(_graph); n != INVALID; ++n, ++i) {
577
        _node_id[n] = i;
578
      }
579
      i = 0;
580
      for (NodeIt n(_graph); n != INVALID; ++n, ++i) {
581
        _first_out[i] = j;
582
        for (OutArcIt a(_graph, n); a != INVALID; ++a, ++j) {
583
          _arc_idf[a] = j;
584
          _forward[j] = true;
585
          _source[j] = i;
586
          _target[j] = _node_id[_graph.runningNode(a)];
587
        }
588
        for (InArcIt a(_graph, n); a != INVALID; ++a, ++j) {
589
          _arc_idb[a] = j;
590
          _forward[j] = false;
591
          _source[j] = i;
592
          _target[j] = _node_id[_graph.runningNode(a)];
593
        }
594
        _forward[j] = false;
595
        _source[j] = i;
596
        _target[j] = _root;
597
        _reverse[j] = k;
598
        _forward[k] = true;
599
        _source[k] = _root;
600
        _target[k] = i;
601
        _reverse[k] = j;
602
        ++j; ++k;
603
      }
604
      _first_out[i] = j;
605
      _first_out[_node_num] = k;
606
      for (ArcIt a(_graph); a != INVALID; ++a) {
607
        int fi = _arc_idf[a];
608
        int bi = _arc_idb[a];
609
        _reverse[fi] = bi;
610
        _reverse[bi] = fi;
611
      }
612
      
613
      // Reset parameters
614
      resetParams();
615
      return *this;
616
    }
617

	
589 618
    /// @}
Ignore white space 2 line context
... ...
@@ -334,70 +334,4 @@
334 334
        "The cost type of CostScaling must be signed");
335

	
336
      // Resize vectors
337
      _node_num = countNodes(_graph);
338
      _arc_num = countArcs(_graph);
339
      _res_node_num = _node_num + 1;
340
      _res_arc_num = 2 * (_arc_num + _node_num);
341
      _root = _node_num;
342

	
343
      _first_out.resize(_res_node_num + 1);
344
      _forward.resize(_res_arc_num);
345
      _source.resize(_res_arc_num);
346
      _target.resize(_res_arc_num);
347
      _reverse.resize(_res_arc_num);
348

	
349
      _lower.resize(_res_arc_num);
350
      _upper.resize(_res_arc_num);
351
      _scost.resize(_res_arc_num);
352
      _supply.resize(_res_node_num);
353 335
      
354
      _res_cap.resize(_res_arc_num);
355
      _cost.resize(_res_arc_num);
356
      _pi.resize(_res_node_num);
357
      _excess.resize(_res_node_num);
358
      _next_out.resize(_res_node_num);
359

	
360
      _arc_vec.reserve(_res_arc_num);
361
      _cost_vec.reserve(_res_arc_num);
362

	
363
      // Copy the graph
364
      int i = 0, j = 0, k = 2 * _arc_num + _node_num;
365
      for (NodeIt n(_graph); n != INVALID; ++n, ++i) {
366
        _node_id[n] = i;
367
      }
368
      i = 0;
369
      for (NodeIt n(_graph); n != INVALID; ++n, ++i) {
370
        _first_out[i] = j;
371
        for (OutArcIt a(_graph, n); a != INVALID; ++a, ++j) {
372
          _arc_idf[a] = j;
373
          _forward[j] = true;
374
          _source[j] = i;
375
          _target[j] = _node_id[_graph.runningNode(a)];
376
        }
377
        for (InArcIt a(_graph, n); a != INVALID; ++a, ++j) {
378
          _arc_idb[a] = j;
379
          _forward[j] = false;
380
          _source[j] = i;
381
          _target[j] = _node_id[_graph.runningNode(a)];
382
        }
383
        _forward[j] = false;
384
        _source[j] = i;
385
        _target[j] = _root;
386
        _reverse[j] = k;
387
        _forward[k] = true;
388
        _source[k] = _root;
389
        _target[k] = i;
390
        _reverse[k] = j;
391
        ++j; ++k;
392
      }
393
      _first_out[i] = j;
394
      _first_out[_res_node_num] = k;
395
      for (ArcIt a(_graph); a != INVALID; ++a) {
396
        int fi = _arc_idf[a];
397
        int bi = _arc_idb[a];
398
        _reverse[fi] = bi;
399
        _reverse[bi] = fi;
400
      }
401
      
402
      // Reset parameters
336
      // Reset data structures
403 337
      reset();
... ...
@@ -536,8 +470,8 @@
536 470
    ///
537
    /// This function can be called more than once. All the parameters
538
    /// that have been given are kept for the next call, unless
539
    /// \ref reset() is called, thus only the modified parameters
540
    /// have to be set again. See \ref reset() for examples.
541
    /// However, the underlying digraph must not be modified after this
542
    /// class have been constructed, since it copies and extends the graph.
471
    /// This function can be called more than once. All the given parameters
472
    /// are kept for the next call, unless \ref resetParams() or \ref reset()
473
    /// is used, thus only the modified parameters have to be set again.
474
    /// If the underlying digraph was also modified after the construction
475
    /// of the class (or the last \ref reset() call), then the \ref reset()
476
    /// function must be called.
543 477
    ///
... ...
@@ -558,2 +492,3 @@
558 492
    /// \see ProblemType, Method
493
    /// \see resetParams(), reset()
559 494
    ProblemType run(Method method = PARTIAL_AUGMENT, int factor = 8) {
... ...
@@ -572,7 +507,8 @@
572 507
    ///
573
    /// It is useful for multiple run() calls. If this function is not
574
    /// used, all the parameters given before are kept for the next
575
    /// \ref run() call.
576
    /// However, the underlying digraph must not be modified after this
577
    /// class have been constructed, since it copies and extends the graph.
508
    /// It is useful for multiple \ref run() calls. Basically, all the given
509
    /// parameters are kept for the next \ref run() call, unless
510
    /// \ref resetParams() or \ref reset() is used.
511
    /// If the underlying digraph was also modified after the construction
512
    /// of the class or the last \ref reset() call, then the \ref reset()
513
    /// function must be used, otherwise \ref resetParams() is sufficient.
578 514
    ///
... ...
@@ -586,3 +522,3 @@
586 522
    ///
587
    ///   // Run again with modified cost map (reset() is not called,
523
    ///   // Run again with modified cost map (resetParams() is not called,
588 524
    ///   // so only the cost map have to be set again)
... ...
@@ -591,5 +527,5 @@
591 527
    ///
592
    ///   // Run again from scratch using reset()
528
    ///   // Run again from scratch using resetParams()
593 529
    ///   // (the lower bounds will be set to zero on all arcs)
594
    ///   cs.reset();
530
    ///   cs.resetParams();
595 531
    ///   cs.upperMap(capacity).costMap(cost)
... ...
@@ -599,3 +535,5 @@
599 535
    /// \return <tt>(*this)</tt>
600
    CostScaling& reset() {
536
    ///
537
    /// \see reset(), run()
538
    CostScaling& resetParams() {
601 539
      for (int i = 0; i != _res_node_num; ++i) {
... ...
@@ -619,2 +557,86 @@
619 557

	
558
    /// \brief Reset all the parameters that have been given before.
559
    ///
560
    /// This function resets all the paramaters that have been given
561
    /// before using functions \ref lowerMap(), \ref upperMap(),
562
    /// \ref costMap(), \ref supplyMap(), \ref stSupply().
563
    ///
564
    /// It is useful for multiple run() calls. If this function is not
565
    /// used, all the parameters given before are kept for the next
566
    /// \ref run() call.
567
    /// However, the underlying digraph must not be modified after this
568
    /// class have been constructed, since it copies and extends the graph.
569
    /// \return <tt>(*this)</tt>
570
    CostScaling& reset() {
571
      // Resize vectors
572
      _node_num = countNodes(_graph);
573
      _arc_num = countArcs(_graph);
574
      _res_node_num = _node_num + 1;
575
      _res_arc_num = 2 * (_arc_num + _node_num);
576
      _root = _node_num;
577

	
578
      _first_out.resize(_res_node_num + 1);
579
      _forward.resize(_res_arc_num);
580
      _source.resize(_res_arc_num);
581
      _target.resize(_res_arc_num);
582
      _reverse.resize(_res_arc_num);
583

	
584
      _lower.resize(_res_arc_num);
585
      _upper.resize(_res_arc_num);
586
      _scost.resize(_res_arc_num);
587
      _supply.resize(_res_node_num);
588
      
589
      _res_cap.resize(_res_arc_num);
590
      _cost.resize(_res_arc_num);
591
      _pi.resize(_res_node_num);
592
      _excess.resize(_res_node_num);
593
      _next_out.resize(_res_node_num);
594

	
595
      _arc_vec.reserve(_res_arc_num);
596
      _cost_vec.reserve(_res_arc_num);
597

	
598
      // Copy the graph
599
      int i = 0, j = 0, k = 2 * _arc_num + _node_num;
600
      for (NodeIt n(_graph); n != INVALID; ++n, ++i) {
601
        _node_id[n] = i;
602
      }
603
      i = 0;
604
      for (NodeIt n(_graph); n != INVALID; ++n, ++i) {
605
        _first_out[i] = j;
606
        for (OutArcIt a(_graph, n); a != INVALID; ++a, ++j) {
607
          _arc_idf[a] = j;
608
          _forward[j] = true;
609
          _source[j] = i;
610
          _target[j] = _node_id[_graph.runningNode(a)];
611
        }
612
        for (InArcIt a(_graph, n); a != INVALID; ++a, ++j) {
613
          _arc_idb[a] = j;
614
          _forward[j] = false;
615
          _source[j] = i;
616
          _target[j] = _node_id[_graph.runningNode(a)];
617
        }
618
        _forward[j] = false;
619
        _source[j] = i;
620
        _target[j] = _root;
621
        _reverse[j] = k;
622
        _forward[k] = true;
623
        _source[k] = _root;
624
        _target[k] = i;
625
        _reverse[k] = j;
626
        ++j; ++k;
627
      }
628
      _first_out[i] = j;
629
      _first_out[_res_node_num] = k;
630
      for (ArcIt a(_graph); a != INVALID; ++a) {
631
        int fi = _arc_idf[a];
632
        int bi = _arc_idb[a];
633
        _reverse[fi] = bi;
634
        _reverse[bi] = fi;
635
      }
636
      
637
      // Reset parameters
638
      resetParams();
639
      return *this;
640
    }
641

	
620 642
    /// @}
Ignore white space 2 line context
... ...
@@ -252,67 +252,3 @@
252 252

	
253
      // Resize vectors
254
      _node_num = countNodes(_graph);
255
      _arc_num = countArcs(_graph);
256
      _res_node_num = _node_num + 1;
257
      _res_arc_num = 2 * (_arc_num + _node_num);
258
      _root = _node_num;
259

	
260
      _first_out.resize(_res_node_num + 1);
261
      _forward.resize(_res_arc_num);
262
      _source.resize(_res_arc_num);
263
      _target.resize(_res_arc_num);
264
      _reverse.resize(_res_arc_num);
265

	
266
      _lower.resize(_res_arc_num);
267
      _upper.resize(_res_arc_num);
268
      _cost.resize(_res_arc_num);
269
      _supply.resize(_res_node_num);
270
      
271
      _res_cap.resize(_res_arc_num);
272
      _pi.resize(_res_node_num);
273

	
274
      _arc_vec.reserve(_res_arc_num);
275
      _cost_vec.reserve(_res_arc_num);
276
      _id_vec.reserve(_res_arc_num);
277

	
278
      // Copy the graph
279
      int i = 0, j = 0, k = 2 * _arc_num + _node_num;
280
      for (NodeIt n(_graph); n != INVALID; ++n, ++i) {
281
        _node_id[n] = i;
282
      }
283
      i = 0;
284
      for (NodeIt n(_graph); n != INVALID; ++n, ++i) {
285
        _first_out[i] = j;
286
        for (OutArcIt a(_graph, n); a != INVALID; ++a, ++j) {
287
          _arc_idf[a] = j;
288
          _forward[j] = true;
289
          _source[j] = i;
290
          _target[j] = _node_id[_graph.runningNode(a)];
291
        }
292
        for (InArcIt a(_graph, n); a != INVALID; ++a, ++j) {
293
          _arc_idb[a] = j;
294
          _forward[j] = false;
295
          _source[j] = i;
296
          _target[j] = _node_id[_graph.runningNode(a)];
297
        }
298
        _forward[j] = false;
299
        _source[j] = i;
300
        _target[j] = _root;
301
        _reverse[j] = k;
302
        _forward[k] = true;
303
        _source[k] = _root;
304
        _target[k] = i;
305
        _reverse[k] = j;
306
        ++j; ++k;
307
      }
308
      _first_out[i] = j;
309
      _first_out[_res_node_num] = k;
310
      for (ArcIt a(_graph); a != INVALID; ++a) {
311
        int fi = _arc_idf[a];
312
        int bi = _arc_idb[a];
313
        _reverse[fi] = bi;
314
        _reverse[bi] = fi;
315
      }
316
      
317
      // Reset parameters
253
      // Reset data structures
318 254
      reset();
... ...
@@ -451,8 +387,8 @@
451 387
    ///
452
    /// This function can be called more than once. All the parameters
453
    /// that have been given are kept for the next call, unless
454
    /// \ref reset() is called, thus only the modified parameters
455
    /// have to be set again. See \ref reset() for examples.
456
    /// However, the underlying digraph must not be modified after this
457
    /// class have been constructed, since it copies and extends the graph.
388
    /// This function can be called more than once. All the given parameters
389
    /// are kept for the next call, unless \ref resetParams() or \ref reset()
390
    /// is used, thus only the modified parameters have to be set again.
391
    /// If the underlying digraph was also modified after the construction
392
    /// of the class (or the last \ref reset() call), then the \ref reset()
393
    /// function must be called.
458 394
    ///
... ...
@@ -472,2 +408,3 @@
472 408
    /// \see ProblemType, Method
409
    /// \see resetParams(), reset()
473 410
    ProblemType run(Method method = CANCEL_AND_TIGHTEN) {
... ...
@@ -485,7 +422,8 @@
485 422
    ///
486
    /// It is useful for multiple run() calls. If this function is not
487
    /// used, all the parameters given before are kept for the next
488
    /// \ref run() call.
489
    /// However, the underlying digraph must not be modified after this
490
    /// class have been constructed, since it copies and extends the graph.
423
    /// It is useful for multiple \ref run() calls. Basically, all the given
424
    /// parameters are kept for the next \ref run() call, unless
425
    /// \ref resetParams() or \ref reset() is used.
426
    /// If the underlying digraph was also modified after the construction
427
    /// of the class or the last \ref reset() call, then the \ref reset()
428
    /// function must be used, otherwise \ref resetParams() is sufficient.
491 429
    ///
... ...
@@ -499,3 +437,3 @@
499 437
    ///
500
    ///   // Run again with modified cost map (reset() is not called,
438
    ///   // Run again with modified cost map (resetParams() is not called,
501 439
    ///   // so only the cost map have to be set again)
... ...
@@ -504,5 +442,5 @@
504 442
    ///
505
    ///   // Run again from scratch using reset()
443
    ///   // Run again from scratch using resetParams()
506 444
    ///   // (the lower bounds will be set to zero on all arcs)
507
    ///   cc.reset();
445
    ///   cc.resetParams();
508 446
    ///   cc.upperMap(capacity).costMap(cost)
... ...
@@ -512,3 +450,5 @@
512 450
    /// \return <tt>(*this)</tt>
513
    CycleCanceling& reset() {
451
    ///
452
    /// \see reset(), run()
453
    CycleCanceling& resetParams() {
514 454
      for (int i = 0; i != _res_node_num; ++i) {
... ...
@@ -532,2 +472,91 @@
532 472

	
473
    /// \brief Reset the internal data structures and all the parameters
474
    /// that have been given before.
475
    ///
476
    /// This function resets the internal data structures and all the
477
    /// paramaters that have been given before using functions \ref lowerMap(),
478
    /// \ref upperMap(), \ref costMap(), \ref supplyMap(), \ref stSupply().
479
    ///
480
    /// It is useful for multiple \ref run() calls. Basically, all the given
481
    /// parameters are kept for the next \ref run() call, unless
482
    /// \ref resetParams() or \ref reset() is used.
483
    /// If the underlying digraph was also modified after the construction
484
    /// of the class or the last \ref reset() call, then the \ref reset()
485
    /// function must be used, otherwise \ref resetParams() is sufficient.
486
    ///
487
    /// See \ref resetParams() for examples.
488
    ///
489
    /// \return <tt>(*this)</tt>
490
    ///
491
    /// \see resetParams(), run()
492
    CycleCanceling& reset() {
493
      // Resize vectors
494
      _node_num = countNodes(_graph);
495
      _arc_num = countArcs(_graph);
496
      _res_node_num = _node_num + 1;
497
      _res_arc_num = 2 * (_arc_num + _node_num);
498
      _root = _node_num;
499

	
500
      _first_out.resize(_res_node_num + 1);
501
      _forward.resize(_res_arc_num);
502
      _source.resize(_res_arc_num);
503
      _target.resize(_res_arc_num);
504
      _reverse.resize(_res_arc_num);
505

	
506
      _lower.resize(_res_arc_num);
507
      _upper.resize(_res_arc_num);
508
      _cost.resize(_res_arc_num);
509
      _supply.resize(_res_node_num);
510
      
511
      _res_cap.resize(_res_arc_num);
512
      _pi.resize(_res_node_num);
513

	
514
      _arc_vec.reserve(_res_arc_num);
515
      _cost_vec.reserve(_res_arc_num);
516
      _id_vec.reserve(_res_arc_num);
517

	
518
      // Copy the graph
519
      int i = 0, j = 0, k = 2 * _arc_num + _node_num;
520
      for (NodeIt n(_graph); n != INVALID; ++n, ++i) {
521
        _node_id[n] = i;
522
      }
523
      i = 0;
524
      for (NodeIt n(_graph); n != INVALID; ++n, ++i) {
525
        _first_out[i] = j;
526
        for (OutArcIt a(_graph, n); a != INVALID; ++a, ++j) {
527
          _arc_idf[a] = j;
528
          _forward[j] = true;
529
          _source[j] = i;
530
          _target[j] = _node_id[_graph.runningNode(a)];
531
        }
532
        for (InArcIt a(_graph, n); a != INVALID; ++a, ++j) {
533
          _arc_idb[a] = j;
534
          _forward[j] = false;
535
          _source[j] = i;
536
          _target[j] = _node_id[_graph.runningNode(a)];
537
        }
538
        _forward[j] = false;
539
        _source[j] = i;
540
        _target[j] = _root;
541
        _reverse[j] = k;
542
        _forward[k] = true;
543
        _source[k] = _root;
544
        _target[k] = i;
545
        _reverse[k] = j;
546
        ++j; ++k;
547
      }
548
      _first_out[i] = j;
549
      _first_out[_res_node_num] = k;
550
      for (ArcIt a(_graph); a != INVALID; ++a) {
551
        int fi = _arc_idf[a];
552
        int bi = _arc_idb[a];
553
        _reverse[fi] = bi;
554
        _reverse[bi] = fi;
555
      }
556
      
557
      // Reset parameters
558
      resetParams();
559
      return *this;
560
    }
561

	
533 562
    /// @}
Ignore white space 2 line context
... ...
@@ -196,2 +196,3 @@
196 196
    IntVector _target;
197
    bool _arc_mixing;
197 198

	
... ...
@@ -635,2 +636,3 @@
635 636
      _graph(graph), _node_id(graph), _arc_id(graph),
637
      _arc_mixing(arc_mixing),
636 638
      MAX(std::numeric_limits<Value>::max()),
... ...
@@ -645,54 +647,3 @@
645 647
        
646
      // Resize vectors
647
      _node_num = countNodes(_graph);
648
      _arc_num = countArcs(_graph);
649
      int all_node_num = _node_num + 1;
650
      int max_arc_num = _arc_num + 2 * _node_num;
651

	
652
      _source.resize(max_arc_num);
653
      _target.resize(max_arc_num);
654

	
655
      _lower.resize(_arc_num);
656
      _upper.resize(_arc_num);
657
      _cap.resize(max_arc_num);
658
      _cost.resize(max_arc_num);
659
      _supply.resize(all_node_num);
660
      _flow.resize(max_arc_num);
661
      _pi.resize(all_node_num);
662

	
663
      _parent.resize(all_node_num);
664
      _pred.resize(all_node_num);
665
      _forward.resize(all_node_num);
666
      _thread.resize(all_node_num);
667
      _rev_thread.resize(all_node_num);
668
      _succ_num.resize(all_node_num);
669
      _last_succ.resize(all_node_num);
670
      _state.resize(max_arc_num);
671

	
672
      // Copy the graph
673
      int i = 0;
674
      for (NodeIt n(_graph); n != INVALID; ++n, ++i) {
675
        _node_id[n] = i;
676
      }
677
      if (arc_mixing) {
678
        // Store the arcs in a mixed order
679
        int k = std::max(int(std::sqrt(double(_arc_num))), 10);
680
        int i = 0, j = 0;
681
        for (ArcIt a(_graph); a != INVALID; ++a) {
682
          _arc_id[a] = i;
683
          _source[i] = _node_id[_graph.source(a)];
684
          _target[i] = _node_id[_graph.target(a)];
685
          if ((i += k) >= _arc_num) i = ++j;
686
        }
687
      } else {
688
        // Store the arcs in the original order
689
        int i = 0;
690
        for (ArcIt a(_graph); a != INVALID; ++a, ++i) {
691
          _arc_id[a] = i;
692
          _source[i] = _node_id[_graph.source(a)];
693
          _target[i] = _node_id[_graph.target(a)];
694
        }
695
      }
696
      
697
      // Reset parameters
648
      // Reset data structures
698 649
      reset();
... ...
@@ -844,8 +795,8 @@
844 795
    ///
845
    /// This function can be called more than once. All the parameters
846
    /// that have been given are kept for the next call, unless
847
    /// \ref reset() is called, thus only the modified parameters
848
    /// have to be set again. See \ref reset() for examples.
849
    /// However, the underlying digraph must not be modified after this
850
    /// class have been constructed, since it copies and extends the graph.
796
    /// This function can be called more than once. All the given parameters
797
    /// are kept for the next call, unless \ref resetParams() or \ref reset()
798
    /// is used, thus only the modified parameters have to be set again.
799
    /// If the underlying digraph was also modified after the construction
800
    /// of the class (or the last \ref reset() call), then the \ref reset()
801
    /// function must be called.
851 802
    ///
... ...
@@ -863,2 +814,3 @@
863 814
    /// \see ProblemType, PivotRule
815
    /// \see resetParams(), reset()
864 816
    ProblemType run(PivotRule pivot_rule = BLOCK_SEARCH) {
... ...
@@ -874,7 +826,8 @@
874 826
    ///
875
    /// It is useful for multiple run() calls. If this function is not
876
    /// used, all the parameters given before are kept for the next
877
    /// \ref run() call.
878
    /// However, the underlying digraph must not be modified after this
879
    /// class have been constructed, since it copies and extends the graph.
827
    /// It is useful for multiple \ref run() calls. Basically, all the given
828
    /// parameters are kept for the next \ref run() call, unless
829
    /// \ref resetParams() or \ref reset() is used.
830
    /// If the underlying digraph was also modified after the construction
831
    /// of the class or the last \ref reset() call, then the \ref reset()
832
    /// function must be used, otherwise \ref resetParams() is sufficient.
880 833
    ///
... ...
@@ -888,3 +841,3 @@
888 841
    ///
889
    ///   // Run again with modified cost map (reset() is not called,
842
    ///   // Run again with modified cost map (resetParams() is not called,
890 843
    ///   // so only the cost map have to be set again)
... ...
@@ -893,5 +846,5 @@
893 846
    ///
894
    ///   // Run again from scratch using reset()
847
    ///   // Run again from scratch using resetParams()
895 848
    ///   // (the lower bounds will be set to zero on all arcs)
896
    ///   ns.reset();
849
    ///   ns.resetParams();
897 850
    ///   ns.upperMap(capacity).costMap(cost)
... ...
@@ -901,3 +854,5 @@
901 854
    /// \return <tt>(*this)</tt>
902
    NetworkSimplex& reset() {
855
    ///
856
    /// \see reset(), run()
857
    NetworkSimplex& resetParams() {
903 858
      for (int i = 0; i != _node_num; ++i) {
... ...
@@ -915,2 +870,79 @@
915 870

	
871
    /// \brief Reset the internal data structures and all the parameters
872
    /// that have been given before.
873
    ///
874
    /// This function resets the internal data structures and all the
875
    /// paramaters that have been given before using functions \ref lowerMap(),
876
    /// \ref upperMap(), \ref costMap(), \ref supplyMap(), \ref stSupply(),
877
    /// \ref supplyType().
878
    ///
879
    /// It is useful for multiple \ref run() calls. Basically, all the given
880
    /// parameters are kept for the next \ref run() call, unless
881
    /// \ref resetParams() or \ref reset() is used.
882
    /// If the underlying digraph was also modified after the construction
883
    /// of the class or the last \ref reset() call, then the \ref reset()
884
    /// function must be used, otherwise \ref resetParams() is sufficient.
885
    ///
886
    /// See \ref resetParams() for examples.
887
    ///
888
    /// \return <tt>(*this)</tt>
889
    ///
890
    /// \see resetParams(), run()
891
    NetworkSimplex& reset() {
892
      // Resize vectors
893
      _node_num = countNodes(_graph);
894
      _arc_num = countArcs(_graph);
895
      int all_node_num = _node_num + 1;
896
      int max_arc_num = _arc_num + 2 * _node_num;
897

	
898
      _source.resize(max_arc_num);
899
      _target.resize(max_arc_num);
900

	
901
      _lower.resize(_arc_num);
902
      _upper.resize(_arc_num);
903
      _cap.resize(max_arc_num);
904
      _cost.resize(max_arc_num);
905
      _supply.resize(all_node_num);
906
      _flow.resize(max_arc_num);
907
      _pi.resize(all_node_num);
908

	
909
      _parent.resize(all_node_num);
910
      _pred.resize(all_node_num);
911
      _forward.resize(all_node_num);
912
      _thread.resize(all_node_num);
913
      _rev_thread.resize(all_node_num);
914
      _succ_num.resize(all_node_num);
915
      _last_succ.resize(all_node_num);
916
      _state.resize(max_arc_num);
917

	
918
      // Copy the graph
919
      int i = 0;
920
      for (NodeIt n(_graph); n != INVALID; ++n, ++i) {
921
        _node_id[n] = i;
922
      }
923
      if (_arc_mixing) {
924
        // Store the arcs in a mixed order
925
        int k = std::max(int(std::sqrt(double(_arc_num))), 10);
926
        int i = 0, j = 0;
927
        for (ArcIt a(_graph); a != INVALID; ++a) {
928
          _arc_id[a] = i;
929
          _source[i] = _node_id[_graph.source(a)];
930
          _target[i] = _node_id[_graph.target(a)];
931
          if ((i += k) >= _arc_num) i = ++j;
932
        }
933
      } else {
934
        // Store the arcs in the original order
935
        int i = 0;
936
        for (ArcIt a(_graph); a != INVALID; ++a, ++i) {
937
          _arc_id[a] = i;
938
          _source[i] = _node_id[_graph.source(a)];
939
          _target[i] = _node_id[_graph.target(a)];
940
        }
941
      }
942
      
943
      // Reset parameters
944
      resetParams();
945
      return *this;
946
    }
947
    
916 948
    /// @}
Ignore white space 2 line context
... ...
@@ -159,3 +159,3 @@
159 159

	
160
      b = mcf.reset()
160
      b = mcf.reset().resetParams()
161 161
             .lowerMap(me.lower)
... ...
@@ -348,3 +348,3 @@
348 348
           mcf1.OPTIMAL, true,     8010, test_str + "-4");
349
  mcf1.reset().supplyMap(s1);
349
  mcf1.resetParams().supplyMap(s1);
350 350
  checkMcf(mcf1, mcf1.run(param), gr, l1, cu, cc, s1,
... ...
@@ -365,3 +365,3 @@
365 365
  // Tests for the GEQ form
366
  mcf1.reset().upperMap(u).costMap(c).supplyMap(s5);
366
  mcf1.resetParams().upperMap(u).costMap(c).supplyMap(s5);
367 367
  checkMcf(mcf1, mcf1.run(param), gr, l1, u, c, s5,
... ...
@@ -382,3 +382,3 @@
382 382
           mcf2.OPTIMAL, true,   -40000, test_str + "-14");
383
  mcf2.reset().lowerMap(neg1_l2).costMap(neg1_c).supplyMap(neg1_s);
383
  mcf2.resetParams().lowerMap(neg1_l2).costMap(neg1_c).supplyMap(neg1_s);
384 384
  checkMcf(mcf2, mcf2.run(param), neg1_gr, neg1_l2, neg1_u1, neg1_c, neg1_s,
0 comments (0 inline)