Open-Harbor/osrm-backend
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 3 Wiki Activity

Replace dynamic distance calculation for table plugin with pre-calculated distances on shortcuts, avoiding unpacking cost.

Browse Source 
Adds approx 10% to total data size.  Speeds up large table requests by 2 orders of magnitude.

Co-authored-by: Kajari Ghosh <ghoshkaj@gmail.com>
This commit is contained in:
Daniel Patterson
2018-10-29 21:47:49 -07:00
parent 5327f8da4e
commit 498259b220
48 changed files with 767 additions and 995 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/engine/routing_algorithms/routing_base_ch.hpp
+8 -3
View File
@@ -186,9 +186,10 @@ void routingStep(const DataFacade<Algorithm> &facade,
}
template <bool UseDuration>
EdgeWeight getLoopWeight(const DataFacade<Algorithm> &facade, NodeID node)
std::tuple<EdgeWeight, EdgeDistance> getLoopWeight(const DataFacade<Algorithm> &facade, NodeID node)
{
EdgeWeight loop_weight = UseDuration ? MAXIMAL_EDGE_DURATION : INVALID_EDGE_WEIGHT;
EdgeDistance loop_distance = MAXIMAL_EDGE_DISTANCE;
for (auto edge : facade.GetAdjacentEdgeRange(node))
{
const auto &data = facade.GetEdgeData(edge);
@@ -198,11 +199,15 @@ EdgeWeight getLoopWeight(const DataFacade<Algorithm> &facade, NodeID node)
if (to == node)
{
const auto value = UseDuration ? data.duration : data.weight;
loop_weight = std::min(loop_weight, value);
if (value < loop_weight)
{
loop_weight = value;
loop_distance = data.distance;
}
}
}
}
return loop_weight;
return std::make_tuple(loop_weight, loop_distance);
}
/**