AndrewShkrob/organicmaps
1
Fork 0
forked from organicmaps/organicmaps
Code Pull requests Activity

New uturn determine strategy.

Browse source
This commit is contained in:
Lev Dragunov 2015-11-18 16:44:22 +03:00
parent 0b6573d468
commit ff14b21c73
1 changed files with 16 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
routing/turns_generator.cpp
View file

@ -919,16 +919,27 @@ size_t CheckUTurnOnRoute(vector<LoadedPathSegment> const & segments, size_t curr
auto const & path = masterSegment.m_path;
m2::PointD p1 = path[path.size() - 1] - path[path.size() - 2];
m2::PointD p2 = checkedSegment.m_path[1] - checkedSegment.m_path[0];
// Same segment UTurn case.
if (i == 0)
{
// TODO Fix direction calculation.
// Warning! We can not determine UTurn direction in single edge case. So we use UTurnLeft.
// We deside to add driving rules (left-right sided driving) to mwm header.
if (p1 == p2)
{
turn.m_turn = TurnDirection::UTurnLeft;
return 1;
}
// Wide UTurn must have link in it's middle.
return 0;
}
auto angle = ang::TwoVectorsAngle(m2::PointD::Zero(), p1, p2);
if (!my::AlmostEqualAbs(angle, math::pi, kUTurnHeadingSensitivity))
return 0;
if (i == 0)
{
turn.m_turn = TurnDirection::UTurnLeft;
return 0;
}
// Determine turn direction.
m2::PointD const junctionPoint = masterSegment.m_path.back();
m2::PointD const ingoingPoint = GetPointForTurn(masterSegment.m_path, junctionPoint,