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Review and rebase updates

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This commit is contained in:
Michael Krasnyk
2018-04-27 18:43:13 +02:00
committed by Patrick Niklaus
parent 105709cb43
commit cacb162520
5 changed files with 39 additions and 37 deletions
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src/extractor/edge_based_graph_factory.cpp
+7 -3
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@@ -145,9 +145,13 @@ NBGToEBG EdgeBasedGraphFactory::InsertEdgeBasedNode(const NodeID node_u, const N
BOOST_ASSERT(nbe_to_ebn_mapping[edge_id_1] != SPECIAL_NODEID ||
nbe_to_ebn_mapping[edge_id_2] != SPECIAL_NODEID);
// TODO: use the sign bit to distinguish oneway streets that must
// have INVALID_EDGE_WEIGHT node weight values to enforce loop edges
// in contraction
// ⚠ Use the sign bit of node weights to distinguish oneway streets:
// * MSB is set - a node corresponds to a one-way street
// * MSB is clear - a node corresponds to a bidirectional street
// Before using node weights data values must be adjusted:
// * in contraction if MSB is set the node weight is INVALID_EDGE_WEIGHT.
// This adjustment is needed to enforce loop creation for oneways.
// * in other cases node weights must be masked with 0x7fffffff to clear MSB
if (nbe_to_ebn_mapping[edge_id_1] != SPECIAL_NODEID &&
nbe_to_ebn_mapping[edge_id_2] == SPECIAL_NODEID)
m_edge_based_node_weights[nbe_to_ebn_mapping[edge_id_1]] |= 0x80000000;