72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
|
#ifndef OSRM_EXTRACTOR_GUIDANCE_ROUNDABOUT_HANDLER_HPP_
|
||
|
|
#define OSRM_EXTRACTOR_GUIDANCE_ROUNDABOUT_HANDLER_HPP_
|
||
|
|
|
||
|
|
#include "extractor/guidance/intersection.hpp"
|
||
|
|
#include "extractor/guidance/intersection_handler.hpp"
|
||
|
|
#include "extractor/query_node.hpp"
|
||
|
|
|
||
|
|
#include "util/name_table.hpp"
|
||
|
|
#include "util/node_based_graph.hpp"
|
||
|
|
#include "util/typedefs.hpp"
|
||
|
|
|
||
|
|
#include <utility>
|
||
|
|
#include <vector>
|
||
|
|
|
||
|
|
namespace osrm
|
||
|
|
{
|
||
|
|
namespace extractor
|
||
|
|
{
|
||
|
|
namespace guidance
|
||
|
|
{
|
||
|
|
|
||
|
|
namespace detail
|
||
|
|
{
|
||
|
|
struct RoundaboutFlags
|
||
|
|
{
|
||
|
|
bool on_roundabout;
|
||
|
|
bool can_enter;
|
||
|
|
bool can_exit_separately;
|
||
|
|
};
|
||
|
|
} // namespace detail
|
||
|
|
|
||
|
|
// The roundabout handler processes all roundabout related instructions.
|
||
|
|
// It performs both the distinction between rotaries and roundabouts and
|
||
|
|
// assigns appropriate entry/exit instructions.
|
||
|
|
class RoundaboutHandler : public IntersectionHandler
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
RoundaboutHandler(const util::NodeBasedDynamicGraph &node_based_graph,
|
||
|
|
const std::vector<QueryNode> &node_info_list,
|
||
|
|
const util::NameTable &name_table);
|
||
|
|
|
||
|
|
~RoundaboutHandler() override final;
|
||
|
|
|
||
|
|
// check whether the handler can actually handle the intersection
|
||
|
|
bool canProcess(const NodeID from_nid, const EdgeID via_eid, const Intersection &intersection) const override final;
|
||
|
|
|
||
|
|
// process the intersection
|
||
|
|
Intersection operator()(const NodeID from_nid, const EdgeID via_eid, Intersection intersection) const override final;
|
||
|
|
|
||
|
|
private:
|
||
|
|
detail::RoundaboutFlags getRoundaboutFlags(const NodeID from_nid, const EdgeID via_eid, const Intersection &intersection) const;
|
||
|
|
|
||
|
|
// decide whether we lookk at a roundabout or a rotary
|
||
|
|
bool isRotary(const NodeID nid) const;
|
||
|
|
|
||
|
|
// TODO handle bike/walk cases that allow crossing a roundabout!
|
||
|
|
// Processing of roundabouts
|
||
|
|
// Produces instructions to enter/exit a roundabout or to stay on it.
|
||
|
|
// Performs the distinction between roundabout and rotaries.
|
||
|
|
Intersection handleRoundabouts(const bool is_rotary,
|
||
|
|
const EdgeID via_edge,
|
||
|
|
const bool on_roundabout,
|
||
|
|
const bool can_exit_roundabout,
|
||
|
|
Intersection intersection) const;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace guidance
|
||
|
|
} // namespace extractor
|
||
|
|
} // namespace osrm
|
||
|
|
|
||
|
|
#endif /*OSRM_EXTRACTOR_GUIDANCE_ROUNDABOUT_HANDLER_HPP_*/
|