66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
#ifndef MANEUVER_OVERRIDE_RELATION_PARSER_HPP
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#define MANEUVER_OVERRIDE_RELATION_PARSER_HPP
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#include "maneuver_override.hpp"
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#include <boost/optional.hpp>
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#include <string>
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#include <vector>
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namespace osmium
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{
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class Relation;
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} // namespace osmium
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namespace osrm
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{
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namespace extractor
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{
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class ScriptingEnvironment;
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/**
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* Parses the relations that represents maneuver overrides.
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* These are structured similarly to turn restrictions, with some slightly
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* different fields.
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*
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* Simple, via-node overrides (the maneuver at the "via" point is overridden)
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* <relation>
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* <tag k="type" v="maneuver"/>
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* <member type="way" ref="1234" role="from"/>
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* <member type="way" ref="5678" role="to"/>
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* <member type="node" ref="9999" role="via"/>
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* <tag k="maneuver" v="turn"/>
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* <tag k="direction" v="slight_right"/>
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* </relation>
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*
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* Via-way descriptions are also supported - this is helpful if
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* you only want to update an instruction if a certain sequence of
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* road transitions are taken.
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*
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* <relation>
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* <tag k="type" v="maneuver"/>
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* <member type="way" ref="1234" role="from"/>
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* <member type="way" ref="5678" role="to"/>
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* <member type="way" ref="9012" role="via"/> <!-- note via way here -->
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* <member type="node" ref="9999" role="via"/>
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* <tag k="maneuver" v="turn"/>
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* <tag k="direction" v="slight_right"/>
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* </relation>
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*
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* For via-way restrictions, ways must be connected end-to-end, i.e.
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* referenced ways must be split if the turn points are partway
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* along the original way.
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*
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*/
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class ManeuverOverrideRelationParser
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{
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public:
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ManeuverOverrideRelationParser();
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boost::optional<InputManeuverOverride> TryParse(const osmium::Relation &relation) const;
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};
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} // namespace extractor
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} // namespace osrm
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#endif /* RESTRICTION_PARSER_HPP */
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