std::vector<ContractorEdge> adaptToContractorInput(InputEdgeContainer input_edge_list)
{
std::vector<ContractorEdge> edges;
edges.reserve(input_edge_list.size() * 2);
for (const auto &input_edge : input_edge_list)
{
#ifndef NDEBUG
const unsigned int constexpr DAY_IN_DECI_SECONDS = 24 * 60 * 60 * 10;
if (static_cast<unsigned int>(std::max(input_edge.weight, 1)) > DAY_IN_DECI_SECONDS)
{
util::Log(logWARNING) << "Edge weight large -> "
<< static_cast<unsigned int>(std::max(input_edge.weight, 1))
<< " : " << static_cast<unsigned int>(input_edge.source) << " -> "
<< static_cast<unsigned int>(input_edge.target);
}
#endif
edges.emplace_back(input_edge.source,
input_edge.target,
std::max(input_edge.weight, 1),
input_edge.duration,
1,
input_edge.edge_id,
false,
input_edge.forward ? true : false,
input_edge.backward ? true : false);
edges.emplace_back(input_edge.target,
input_edge.source,
std::max(input_edge.weight, 1),
input_edge.duration,
1,
input_edge.edge_id,
false,
input_edge.backward ? true : false,
input_edge.forward ? true : false);
}
// FIXME not sure if we need this
edges.shrink_to_fit();
return edges;
}
ContractorGraph toContractorGraph(NodeID number_of_nodes, InputEdgeContainer input_edge_list)
{
std::vector<ContractorEdge> edges;
edges.reserve(input_edge_list.size() * 2);
for (const auto &input_edge : input_edge_list)
{
if (input_edge.data.weight == INVALID_EDGE_WEIGHT)
continue;
#ifndef NDEBUG
const unsigned int constexpr DAY_IN_DECI_SECONDS = 24 * 60 * 60 * 10;
if (static_cast<unsigned int>(std::max(input_edge.data.weight, 1)) > DAY_IN_DECI_SECONDS)
{
util::Log(logWARNING) << "Edge weight large -> "
<< static_cast<unsigned int>(std::max(input_edge.data.weight, 1))
<< " : " << static_cast<unsigned int>(input_edge.source) << " -> "
<< static_cast<unsigned int>(input_edge.target);
}
#endif
edges.emplace_back(input_edge.source,
input_edge.target,
std::max(input_edge.data.weight, 1),
input_edge.data.duration,
1,
input_edge.data.turn_id,
false,
input_edge.data.forward ? true : false,
input_edge.data.backward ? true : false);
edges.emplace_back(input_edge.target,
input_edge.source,
std::max(input_edge.data.weight, 1),
input_edge.data.duration,
1,
input_edge.data.turn_id,
false,
input_edge.data.backward ? true : false,
input_edge.data.forward ? true : false);
};
tbb::parallel_sort(edges.begin(), edges.end());
NodeID edge = 0;
for (NodeID i = 0; i < edges.size();)
{
const NodeID source = edges[i].source;
const NodeID target = edges[i].target;
const NodeID id = edges[i].data.id;
// remove eigenloops
if (source == target)
{
++i;
continue;
}
ContractorEdge forward_edge;
ContractorEdge reverse_edge;
forward_edge.source = reverse_edge.source = source;
forward_edge.target = reverse_edge.target = target;
forward_edge.data.forward = reverse_edge.data.backward = true;
forward_edge.data.backward = reverse_edge.data.forward = false;
forward_edge.data.shortcut = reverse_edge.data.shortcut = false;
forward_edge.data.id = reverse_edge.data.id = id;
forward_edge.data.originalEdges = reverse_edge.data.originalEdges = 1;
forward_edge.data.weight = reverse_edge.data.weight = INVALID_EDGE_WEIGHT;
forward_edge.data.duration = reverse_edge.data.duration = MAXIMAL_EDGE_DURATION;
// remove parallel edges
while (i < edges.size() && edges[i].source == source && edges[i].target == target)
{
if (edges[i].data.forward)
{
forward_edge.data.weight = std::min(edges[i].data.weight, forward_edge.data.weight);
forward_edge.data.duration =
std::min(edges[i].data.duration, forward_edge.data.duration);
}
if (edges[i].data.backward)
{
reverse_edge.data.weight = std::min(edges[i].data.weight, reverse_edge.data.weight);
reverse_edge.data.duration =
std::min(edges[i].data.duration, reverse_edge.data.duration);
}
++i;
}
// merge edges (s,t) and (t,s) into bidirectional edge
if (forward_edge.data.weight == reverse_edge.data.weight)
{
if ((int)forward_edge.data.weight != INVALID_EDGE_WEIGHT)
{
forward_edge.data.backward = true;
edges[edge++] = forward_edge;
}
}
else
{ // insert seperate edges
if (((int)forward_edge.data.weight) != INVALID_EDGE_WEIGHT)
{
edges[edge++] = forward_edge;
}
if ((int)reverse_edge.data.weight != INVALID_EDGE_WEIGHT)
{
edges[edge++] = reverse_edge;
}
}
}
util::Log() << "merged " << edges.size() - edge << " edges out of " << edges.size();
edges.resize(edge);
return ContractorGraph{number_of_nodes, edges};
}