5e167b8745
This PR adds more advanced coordinate extraction, analysing the road to detect offsets due to OSM way modelling. In addition it improves the handling of bearings. Right now OSM reports bearings simply based on the very first coordinate along a way. With this PR, we store the bearings for a turn correctly, making the bearings for turns correct.
44 lines
1.6 KiB
C++
44 lines
1.6 KiB
C++
#ifndef OSRM_EXTRACTOR_GUIDANCE_CONSTANTS_HPP_
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#define OSRM_EXTRACTOR_GUIDANCE_CONSTANTS_HPP_
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namespace osrm
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{
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namespace extractor
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{
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namespace guidance
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{
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const bool constexpr INVERT = true;
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// what angle is interpreted as going straight
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const double constexpr STRAIGHT_ANGLE = 180.;
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// if a turn deviates this much from going straight, it will be kept straight
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const double constexpr MAXIMAL_ALLOWED_NO_TURN_DEVIATION = 3.;
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// angle that lies between two nearly indistinguishable roads
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const double constexpr NARROW_TURN_ANGLE = 40.;
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const double constexpr GROUP_ANGLE = 60;
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// angle difference that can be classified as straight, if its the only narrow turn
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const double constexpr FUZZY_ANGLE_DIFFERENCE = 25.;
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const double constexpr DISTINCTION_RATIO = 2;
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// Named roundabouts with radii larger then than this are seen as rotary
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const double constexpr MAX_ROUNDABOUT_RADIUS = 15;
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// Unnamed small roundabouts that look like intersections are announced as turns,
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// guard against data issues or such roundabout intersections getting too large.
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const double constexpr MAX_ROUNDABOUT_INTERSECTION_RADIUS = 25;
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const double constexpr INCREASES_BY_FOURTY_PERCENT = 1.4;
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const int constexpr MAX_SLIPROAD_THRESHOLD = 250;
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// Road priorities give an idea of how obvious a turn is. If two priorities differ greatly (e.g.
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// service road over a primary road, the better priority can be seen as obvious due to its road
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// category).
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const double constexpr PRIORITY_DISTINCTION_FACTOR = 1.75;
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} // namespace guidance
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} // namespace extractor
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} // namespace osrm
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#endif // OSRM_EXTRACTOR_GUIDANCE_CONSTANTS_HPP_
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