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/**
*
* This file is part of Tulip (https://tulip.labri.fr)
*
* Authors: David Auber and the Tulip development Team
* from LaBRI, University of Bordeaux
*
* Tulip is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3
* of the License, or (at your option) any later version.
*
* Tulip is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
*/
#include "Distances.h"
#include <tulip/MutableContainer.h>
using namespace tlp;
using namespace std;
unsigned int getDist(Graph *g, node n1, node n2) {
vector<node> nextNodes;
tlp_hash_map<node, unsigned int> nodeDepth;
MutableContainer<bool> alreadyTreated;
bool found = false;
alreadyTreated.setAll(false);
nextNodes.push_back(n1);
nodeDepth[n1] = 0;
alreadyTreated.set(n1.id, true);
for (unsigned int i = 0; !found && i < nextNodes.size(); ++i) {
node current = nextNodes[i];
for (auto v : g->getInOutNodes(current)) {
if (alreadyTreated.get(v.id))
continue;
alreadyTreated.set(v.id, true);
nextNodes.push_back(v);
nodeDepth[v] = nodeDepth[current] + 1;
if (v == n2) {
found = true;
break;
}
}
}
return nodeDepth[n2];
}
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