79 lines
2.5 KiB
C++
79 lines
2.5 KiB
C++
#ifndef ENGINE_GUIDANCE_ASSEMBLE_GEOMETRY_HPP
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#define ENGINE_GUIDANCE_ASSEMBLE_GEOMETRY_HPP
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#include "engine/internal_route_result.hpp"
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#include "engine/phantom_node.hpp"
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#include "engine/guidance/route_step.hpp"
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#include "engine/guidance/leg_geometry.hpp"
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#include "util/coordinate_calculation.hpp"
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#include "util/coordinate.hpp"
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#include "extractor/turn_instructions.hpp"
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#include "extractor/travel_mode.hpp"
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#include <vector>
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namespace osrm
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{
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namespace engine
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{
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namespace guidance
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{
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// Extracts the geometry for each segment and calculates the traveled distance
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// Combines the geometry form the phantom node with the PathData
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// to the full route geometry.
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//
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// turn 0 1 2 3 4
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// s...x...y...z...t
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// |---|segment 0
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// |---| segment 1
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// |---| segment 2
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// |---| segment 3
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template <typename DataFacadeT>
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LegGeometry assembleGeometry(const DataFacadeT &facade,
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const std::vector<PathData> &leg_data,
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const PhantomNode &source_node,
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const PhantomNode &target_node)
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{
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LegGeometry geometry;
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// segment 0 first and last
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geometry.segment_offsets.push_back(0);
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geometry.locations.push_back(source_node.location);
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auto current_distance = 0.;
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auto prev_coordinate = geometry.locations.front();
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for (const auto &path_point : leg_data)
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{
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auto coordinate = facade.GetCoordinateOfNode(path_point.turn_via_node);
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current_distance +=
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util::coordinate_calculation::haversineDistance(prev_coordinate, coordinate);
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if (path_point.turn_instruction != extractor::TurnInstruction::NoTurn)
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{
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geometry.segment_distances.push_back(current_distance);
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geometry.segment_offsets.push_back(geometry.locations.size());
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current_distance = 0.;
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}
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prev_coordinate = coordinate;
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geometry.locations.push_back(std::move(coordinate));
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}
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current_distance +=
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util::coordinate_calculation::haversineDistance(prev_coordinate, target_node.location);
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// segment leading to the target node
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geometry.segment_distances.push_back(current_distance);
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geometry.segment_offsets.push_back(geometry.locations.size());
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geometry.locations.push_back(target_node.location);
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BOOST_ASSERT(geometry.segment_distances.size() == geometry.segment_offsets.size() - 1);
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BOOST_ASSERT(geometry.locations.size() > geometry.segment_distances.size());
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return geometry;
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}
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}
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}
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}
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#endif
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