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Support snapping to multiple ways at an input location (#5953)

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This PR improves routing results by adding support for snapping to
multiple ways at input locations.

This means all edges at the snapped location can act as source/target
candidates for routing search, ensuring we always find the best route,
and not the one dependent on the edge selected.
This commit is contained in:
Michael Bell
2022-08-27 11:36:20 +01:00
committed by GitHub
parent bb18a2b428
commit d74e7b66bd
59 changed files with 2820 additions and 1964 deletions
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include/server/api/base_parameters_grammar.hpp
+15 -7
View File
@@ -78,10 +78,17 @@ struct BaseParametersGrammar : boost::spirit::qi::grammar<Iterator, Signature>
: BaseParametersGrammar::base_type(root_rule)
{
const auto add_hint = [](engine::api::BaseParameters &base_parameters,
const boost::optional<std::string> &hint_string) {
if (hint_string)
const std::vector<std::string> &hint_strings) {
if (!hint_strings.empty())
{
base_parameters.hints.emplace_back(engine::Hint::FromBase64(hint_string.get()));
std::vector<engine::SegmentHint> location_hints(hint_strings.size());
std::transform(hint_strings.begin(),
hint_strings.end(),
location_hints.begin(),
[](const auto &hint_string) {
return engine::SegmentHint::FromBase64(hint_string);
});
base_parameters.hints.push_back(engine::Hint{std::move(location_hints)});
}
else
{
@@ -145,10 +152,11 @@ struct BaseParametersGrammar : boost::spirit::qi::grammar<Iterator, Signature>
(-(qi::double_ | unlimited_rule) %
';')[ph::bind(&engine::api::BaseParameters::radiuses, qi::_r1) = qi::_1];
hints_rule = qi::lit("hints=") >
(-qi::as_string[qi::repeat(engine::ENCODED_HINT_SIZE)[base64_char]])[ph::bind(
add_hint, qi::_r1, qi::_1)] %
';';
hints_rule =
qi::lit("hints=") >
(*qi::as_string[qi::repeat(engine::ENCODED_SEGMENT_HINT_SIZE)[base64_char]])[ph::bind(
add_hint, qi::_r1, qi::_1)] %
';';
generate_hints_rule =
qi::lit("generate_hints=") >