void CreateGraph::way(const osmium::Way& way)
{
const char* highway = way.get_value_by_key("highway");
if (!highway || !strcmp(highway, "footway"))
{
return;
}
vertex_type u = -1;
for (const auto& node_ref : way.nodes())
{
node_id_map_type::iterator pos;
bool inserted;
boost::tie(pos, inserted) = node_id_map.emplace(node_ref.positive_ref(), vertex_type());
if (inserted)
{
double x = osmium::geom::detail::lon_to_x(node_ref.lon());
double y = osmium::geom::detail::lat_to_y(node_ref.lat());
Location loc(x, y);
pos->second = boost::add_vertex(vertex_property(loc), graph);
}
const vertex_type v = pos->second;
if (u+1)
{
const char* street_name = way.get_value_by_key("name", "");
const Location& a = boost::get(boost::vertex_name, graph, u);
const Location& b = boost::get(boost::vertex_name, graph, v);
const double length = dist(a, b);
edge_property prop;
boost::get_property_value(prop, boost::edge_name) = street_name;
boost::get_property_value(prop, boost::edge_weight) = length;
boost::add_edge(u, v, prop, graph);
}
u = v;
}
}
/**
* Takes the geometry contained in the ```input_way``` and the tags computed
* by the lua profile inside ```parsed_way``` and computes all edge segments.
*
* Depending on the forward/backwards weights the edges are split into forward
* and backward edges.
*
* warning: caller needs to take care of synchronization!
*/
void ExtractorCallbacks::ProcessWay(const osmium::Way &input_way, const ExtractionWay &parsed_way)
{
if (((0 >= parsed_way.forward_speed) ||
(TRAVEL_MODE_INACCESSIBLE == parsed_way.forward_travel_mode)) &&
((0 >= parsed_way.backward_speed) ||
(TRAVEL_MODE_INACCESSIBLE == parsed_way.backward_travel_mode)) &&
(0 >= parsed_way.duration))
{ // Only true if the way is specified by the speed profile
return;
}
if (input_way.nodes().size() <= 1)
{ // safe-guard against broken data
return;
}
if (std::numeric_limits<decltype(input_way.id())>::max() == input_way.id())
{
util::SimpleLogger().Write(logDEBUG) << "found bogus way with id: " << input_way.id()
<< " of size " << input_way.nodes().size();
return;
}
InternalExtractorEdge::WeightData forward_weight_data;
InternalExtractorEdge::WeightData backward_weight_data;
if (0 < parsed_way.duration)
{
const unsigned num_edges = (input_way.nodes().size() - 1);
// FIXME We devide by the numer of nodes here, but should rather consider
// the length of each segment. We would eigther have to compute the length
// of the whole way here (we can't: no node coordinates) or push that back
// to the container and keep a reference to the way.
forward_weight_data.duration = parsed_way.duration / num_edges;
forward_weight_data.type = InternalExtractorEdge::WeightType::WAY_DURATION;
backward_weight_data.duration = parsed_way.duration / num_edges;
backward_weight_data.type = InternalExtractorEdge::WeightType::WAY_DURATION;
}
else
{
if (parsed_way.forward_speed > 0 &&
parsed_way.forward_travel_mode != TRAVEL_MODE_INACCESSIBLE)
{
forward_weight_data.speed = parsed_way.forward_speed;
forward_weight_data.type = InternalExtractorEdge::WeightType::SPEED;
}
if (parsed_way.backward_speed > 0 &&
parsed_way.backward_travel_mode != TRAVEL_MODE_INACCESSIBLE)
{
backward_weight_data.speed = parsed_way.backward_speed;
backward_weight_data.type = InternalExtractorEdge::WeightType::SPEED;
}
}
if (forward_weight_data.type == InternalExtractorEdge::WeightType::INVALID &&
backward_weight_data.type == InternalExtractorEdge::WeightType::INVALID)
{
util::SimpleLogger().Write(logDEBUG) << "found way with bogus speed, id: "
<< input_way.id();
return;
}
// FIXME this need to be moved into the profiles
const char *data = input_way.get_value_by_key("highway");
guidance::RoadClassificationData road_classification;
if (data)
{
road_classification.road_class = guidance::functionalRoadClassFromTag(data);
}
const auto laneStringToDescription = [](std::string lane_string) -> TurnLaneDescription {
if (lane_string.empty())
return {};
TurnLaneDescription lane_description;
typedef boost::tokenizer<boost::char_separator<char>> tokenizer;
boost::char_separator<char> sep("|", "", boost::keep_empty_tokens);
boost::char_separator<char> inner_sep(";", "");
tokenizer tokens(lane_string, sep);
const constexpr std::size_t num_osm_tags = 11;
const constexpr char *osm_lane_strings[num_osm_tags] = {"none",
"through",
"sharp_left",
"left",
"slight_left",
"slight_right",
"right",
"sharp_right",
"reverse",
"merge_to_left",
"merge_to_right"};
const constexpr TurnLaneType::Mask masks_by_osm_string[num_osm_tags + 1] = {
TurnLaneType::none,
TurnLaneType::straight,
TurnLaneType::sharp_left,
TurnLaneType::left,
TurnLaneType::slight_left,
TurnLaneType::slight_right,
TurnLaneType::right,
TurnLaneType::sharp_right,
TurnLaneType::uturn,
TurnLaneType::merge_to_left,
TurnLaneType::merge_to_right,
TurnLaneType::empty}; // fallback, if string not found
for (auto iter = tokens.begin(); iter != tokens.end(); ++iter)
{
tokenizer inner_tokens(*iter, inner_sep);
guidance::TurnLaneType::Mask lane_mask = inner_tokens.begin() == inner_tokens.end()
? TurnLaneType::none
: TurnLaneType::empty;
for (auto token_itr = inner_tokens.begin(); token_itr != inner_tokens.end();
++token_itr)
{
auto position = std::find(osm_lane_strings, osm_lane_strings + num_osm_tags, *token_itr);
const auto translated_mask =
masks_by_osm_string[std::distance(osm_lane_strings, position)];
if (translated_mask == TurnLaneType::empty)
{
// if we have unsupported tags, don't handle them
util::SimpleLogger().Write(logDEBUG) << "Unsupported lane tag found: \""
<< *token_itr << "\"";
return {};
}
BOOST_ASSERT((lane_mask & translated_mask) == 0); // make sure the mask is valid
lane_mask |= translated_mask;
}
// add the lane to the description
lane_description.push_back(lane_mask);
}
return lane_description;
};
// convert the lane description into an ID and, if necessary, remembr the description in the
// description_map
const auto requestId = [&](std::string lane_string) {
if (lane_string.empty())
return INVALID_LANE_DESCRIPTIONID;
TurnLaneDescription lane_description = laneStringToDescription(std::move(lane_string));
const auto lane_description_itr = lane_description_map.find(lane_description);
if (lane_description_itr == lane_description_map.end())
{
const LaneDescriptionID new_id =
boost::numeric_cast<LaneDescriptionID>(lane_description_map.size());
lane_description_map[lane_description] = new_id;
// since we are getting a new ID, we can augment the current offsets
// and store the turn lane masks, sadly stxxl does not support insert
for (const auto mask : lane_description)
external_memory.turn_lane_masks.push_back(mask);
external_memory.turn_lane_offsets.push_back(external_memory.turn_lane_offsets.back() +
lane_description.size());
return new_id;
}
else
{
return lane_description_itr->second;
}
};
// Deduplicates street names and street destination names based on the street_map map.
// In case we do not already store the name, inserts (name, id) tuple and return id.
// Otherwise fetches the id based on the name and returns it without insertion.
const auto turn_lane_id_forward = requestId(parsed_way.turn_lanes_forward);
const auto turn_lane_id_backward = requestId(parsed_way.turn_lanes_backward);
const constexpr auto MAX_STRING_LENGTH = 255u;
// Get the unique identifier for the street name
// Get the unique identifier for the street name and destination
const auto name_iterator = string_map.find(MapKey(parsed_way.name, parsed_way.destinations));
unsigned name_id = EMPTY_NAMEID;
if (string_map.end() == name_iterator)
{
const auto name_length = std::min<unsigned>(MAX_STRING_LENGTH, parsed_way.name.size());
const auto destinations_length =
std::min<unsigned>(MAX_STRING_LENGTH, parsed_way.destinations.size());
const auto pronunciation_length =
std::min<unsigned>(MAX_STRING_LENGTH, parsed_way.pronunciation.size());
// name_offsets already has an offset of a new name, take the offset index as the name id
name_id = external_memory.name_offsets.size() - 1;
external_memory.name_char_data.reserve(external_memory.name_char_data.size() + name_length
+ destinations_length + pronunciation_length);
std::copy(parsed_way.name.c_str(),
parsed_way.name.c_str() + name_length,
std::back_inserter(external_memory.name_char_data));
external_memory.name_offsets.push_back(external_memory.name_char_data.size());
std::copy(parsed_way.destinations.c_str(),
parsed_way.destinations.c_str() + destinations_length,
std::back_inserter(external_memory.name_char_data));
external_memory.name_offsets.push_back(external_memory.name_char_data.size());
std::copy(parsed_way.pronunciation.c_str(),
parsed_way.pronunciation.c_str() + pronunciation_length,
std::back_inserter(external_memory.name_char_data));
external_memory.name_offsets.push_back(external_memory.name_char_data.size());
auto k = MapKey{parsed_way.name, parsed_way.destinations};
auto v = MapVal{name_id};
string_map.emplace(std::move(k), std::move(v));
}
else
{
name_id = name_iterator->second;
}
const bool split_edge = (parsed_way.forward_speed > 0) &&
(TRAVEL_MODE_INACCESSIBLE != parsed_way.forward_travel_mode) &&
(parsed_way.backward_speed > 0) &&
(TRAVEL_MODE_INACCESSIBLE != parsed_way.backward_travel_mode) &&
((parsed_way.forward_speed != parsed_way.backward_speed) ||
(parsed_way.forward_travel_mode != parsed_way.backward_travel_mode) ||
(turn_lane_id_forward != turn_lane_id_backward));
external_memory.used_node_id_list.reserve(external_memory.used_node_id_list.size() +
input_way.nodes().size());
std::transform(input_way.nodes().begin(),
input_way.nodes().end(),
std::back_inserter(external_memory.used_node_id_list),
[](const osmium::NodeRef &ref) { return OSMNodeID{static_cast<std::uint64_t>(ref.ref())}; });
const bool is_opposite_way = TRAVEL_MODE_INACCESSIBLE == parsed_way.forward_travel_mode;
// traverse way in reverse in this case
if (is_opposite_way)
{
BOOST_ASSERT(split_edge == false);
BOOST_ASSERT(parsed_way.backward_travel_mode != TRAVEL_MODE_INACCESSIBLE);
util::for_each_pair(
input_way.nodes().crbegin(),
input_way.nodes().crend(),
[&](const osmium::NodeRef &first_node, const osmium::NodeRef &last_node) {
external_memory.all_edges_list.push_back(
InternalExtractorEdge(OSMNodeID{static_cast<std::uint64_t>(first_node.ref())},
OSMNodeID{static_cast<std::uint64_t>(last_node.ref())},
name_id,
backward_weight_data,
true,
false,
parsed_way.roundabout,
parsed_way.is_access_restricted,
parsed_way.is_startpoint,
parsed_way.backward_travel_mode,
false,
turn_lane_id_backward,
road_classification));
});
external_memory.way_start_end_id_list.push_back(
{OSMWayID{static_cast<std::uint32_t>(input_way.id())},
OSMNodeID{static_cast<std::uint64_t>(input_way.nodes().back().ref())},
OSMNodeID{static_cast<std::uint64_t>(input_way.nodes()[input_way.nodes().size() - 2].ref())},
OSMNodeID{static_cast<std::uint64_t>(input_way.nodes()[1].ref())},
OSMNodeID{static_cast<std::uint64_t>(input_way.nodes()[0].ref())}});
}
else
{
const bool forward_only =
split_edge || TRAVEL_MODE_INACCESSIBLE == parsed_way.backward_travel_mode;
util::for_each_pair(
input_way.nodes().cbegin(),
input_way.nodes().cend(),
[&](const osmium::NodeRef &first_node, const osmium::NodeRef &last_node) {
external_memory.all_edges_list.push_back(
InternalExtractorEdge(OSMNodeID{static_cast<std::uint64_t>(first_node.ref())},
OSMNodeID{static_cast<std::uint64_t>(last_node.ref())},
name_id,
forward_weight_data,
true,
!forward_only,
parsed_way.roundabout,
parsed_way.is_access_restricted,
parsed_way.is_startpoint,
parsed_way.forward_travel_mode,
split_edge,
turn_lane_id_forward,
road_classification));
});
if (split_edge)
{
BOOST_ASSERT(parsed_way.backward_travel_mode != TRAVEL_MODE_INACCESSIBLE);
util::for_each_pair(
input_way.nodes().cbegin(),
input_way.nodes().cend(),
[&](const osmium::NodeRef &first_node, const osmium::NodeRef &last_node) {
external_memory.all_edges_list.push_back(
InternalExtractorEdge(OSMNodeID{static_cast<std::uint64_t>(first_node.ref())},
OSMNodeID{static_cast<std::uint64_t>(last_node.ref())},
name_id,
backward_weight_data,
false,
true,
parsed_way.roundabout,
parsed_way.is_access_restricted,
parsed_way.is_startpoint,
parsed_way.backward_travel_mode,
true,
turn_lane_id_backward,
road_classification));
});
}
external_memory.way_start_end_id_list.push_back(
{OSMWayID{static_cast<std::uint32_t>(input_way.id())},
OSMNodeID{static_cast<std::uint64_t>(input_way.nodes().back().ref())},
OSMNodeID{static_cast<std::uint64_t>(input_way.nodes()[input_way.nodes().size() - 2].ref())},
OSMNodeID{static_cast<std::uint64_t>(input_way.nodes()[1].ref())},
OSMNodeID{static_cast<std::uint64_t>(input_way.nodes()[0].ref())}});
}
}
/**
* Takes the geometry contained in the ```input_way``` and the tags computed
* by the lua profile inside ```parsed_way``` and computes all edge segments.
*
* Depending on the forward/backwards weights the edges are split into forward
* and backward edges.
*
* warning: caller needs to take care of synchronization!
*/
void ExtractorCallbacks::ProcessWay(const osmium::Way &input_way, const ExtractionWay &parsed_way)
{
if (((0 >= parsed_way.forward_speed) ||
(TRAVEL_MODE_INACCESSIBLE == parsed_way.forward_travel_mode)) &&
((0 >= parsed_way.backward_speed) ||
(TRAVEL_MODE_INACCESSIBLE == parsed_way.backward_travel_mode)) &&
(0 >= parsed_way.duration))
{ // Only true if the way is specified by the speed profile
return;
}
if (input_way.nodes().size() <= 1)
{ // safe-guard against broken data
return;
}
if (std::numeric_limits<decltype(input_way.id())>::max() == input_way.id())
{
util::SimpleLogger().Write(logDEBUG) << "found bogus way with id: " << input_way.id()
<< " of size " << input_way.nodes().size();
return;
}
InternalExtractorEdge::WeightData forward_weight_data;
InternalExtractorEdge::WeightData backward_weight_data;
if (0 < parsed_way.duration)
{
const unsigned num_edges = (input_way.nodes().size() - 1);
// FIXME We devide by the numer of nodes here, but should rather consider
// the length of each segment. We would eigther have to compute the length
// of the whole way here (we can't: no node coordinates) or push that back
// to the container and keep a reference to the way.
forward_weight_data.duration = parsed_way.duration / num_edges;
forward_weight_data.type = InternalExtractorEdge::WeightType::WAY_DURATION;
backward_weight_data.duration = parsed_way.duration / num_edges;
backward_weight_data.type = InternalExtractorEdge::WeightType::WAY_DURATION;
}
else
{
if (parsed_way.forward_speed > 0 &&
parsed_way.forward_travel_mode != TRAVEL_MODE_INACCESSIBLE)
{
forward_weight_data.speed = parsed_way.forward_speed;
forward_weight_data.type = InternalExtractorEdge::WeightType::SPEED;
}
if (parsed_way.backward_speed > 0 &&
parsed_way.backward_travel_mode != TRAVEL_MODE_INACCESSIBLE)
{
backward_weight_data.speed = parsed_way.backward_speed;
backward_weight_data.type = InternalExtractorEdge::WeightType::SPEED;
}
}
if (forward_weight_data.type == InternalExtractorEdge::WeightType::INVALID &&
backward_weight_data.type == InternalExtractorEdge::WeightType::INVALID)
{
util::SimpleLogger().Write(logDEBUG) << "found way with bogus speed, id: "
<< input_way.id();
return;
}
// FIXME this need to be moved into the profiles
const char *data = input_way.get_value_by_key("highway");
guidance::RoadClassificationData road_classification;
if (data)
{
road_classification.road_class = guidance::functionalRoadClassFromTag(data);
}
// Deduplicates street names and street destination names based on the street_map map.
// In case we do not already store the name, inserts (name, id) tuple and return id.
// Otherwise fetches the id based on the name and returns it without insertion.
const constexpr auto MAX_STRING_LENGTH = 255u;
// Get the unique identifier for the street name
const auto string_map_iterator = string_map.find(parsed_way.name);
unsigned name_id = external_memory.name_lengths.size();
if (string_map.end() == string_map_iterator)
{
auto name_length = std::min<unsigned>(MAX_STRING_LENGTH, parsed_way.name.size());
external_memory.name_char_data.reserve(name_id + name_length);
std::copy(parsed_way.name.c_str(),
parsed_way.name.c_str() + name_length,
std::back_inserter(external_memory.name_char_data));
external_memory.name_lengths.push_back(name_length);
string_map.insert(std::make_pair(parsed_way.name, name_id));
}
else
{
name_id = string_map_iterator->second;
}
const bool split_edge = (parsed_way.forward_speed > 0) &&
(TRAVEL_MODE_INACCESSIBLE != parsed_way.forward_travel_mode) &&
(parsed_way.backward_speed > 0) &&
(TRAVEL_MODE_INACCESSIBLE != parsed_way.backward_travel_mode) &&
((parsed_way.forward_speed != parsed_way.backward_speed) ||
(parsed_way.forward_travel_mode != parsed_way.backward_travel_mode));
std::transform(input_way.nodes().begin(),
input_way.nodes().end(),
std::back_inserter(external_memory.used_node_id_list),
[](const osmium::NodeRef &ref) { return OSMNodeID(ref.ref()); });
const bool is_opposite_way = TRAVEL_MODE_INACCESSIBLE == parsed_way.forward_travel_mode;
// traverse way in reverse in this case
if (is_opposite_way)
{
BOOST_ASSERT(split_edge == false);
BOOST_ASSERT(parsed_way.backward_travel_mode != TRAVEL_MODE_INACCESSIBLE);
util::for_each_pair(
input_way.nodes().crbegin(),
input_way.nodes().crend(),
[&](const osmium::NodeRef &first_node, const osmium::NodeRef &last_node) {
external_memory.all_edges_list.push_back(
InternalExtractorEdge(OSMNodeID(first_node.ref()),
OSMNodeID(last_node.ref()),
name_id,
backward_weight_data,
true,
false,
parsed_way.roundabout,
parsed_way.is_access_restricted,
parsed_way.is_startpoint,
parsed_way.backward_travel_mode,
false,
road_classification));
});
external_memory.way_start_end_id_list.push_back(
{OSMWayID(input_way.id()),
OSMNodeID(input_way.nodes().back().ref()),
OSMNodeID(input_way.nodes()[input_way.nodes().size() - 2].ref()),
OSMNodeID(input_way.nodes()[1].ref()),
OSMNodeID(input_way.nodes()[0].ref())});
}
else
{
const bool forward_only =
split_edge || TRAVEL_MODE_INACCESSIBLE == parsed_way.backward_travel_mode;
util::for_each_pair(
input_way.nodes().cbegin(),
input_way.nodes().cend(),
[&](const osmium::NodeRef &first_node, const osmium::NodeRef &last_node) {
external_memory.all_edges_list.push_back(
InternalExtractorEdge(OSMNodeID(first_node.ref()),
OSMNodeID(last_node.ref()),
name_id,
forward_weight_data,
true,
!forward_only,
parsed_way.roundabout,
parsed_way.is_access_restricted,
parsed_way.is_startpoint,
parsed_way.forward_travel_mode,
split_edge,
road_classification));
});
if (split_edge)
{
BOOST_ASSERT(parsed_way.backward_travel_mode != TRAVEL_MODE_INACCESSIBLE);
util::for_each_pair(
input_way.nodes().cbegin(),
input_way.nodes().cend(),
[&](const osmium::NodeRef &first_node, const osmium::NodeRef &last_node) {
external_memory.all_edges_list.push_back(
InternalExtractorEdge(OSMNodeID(first_node.ref()),
OSMNodeID(last_node.ref()),
name_id,
backward_weight_data,
false,
true,
parsed_way.roundabout,
parsed_way.is_access_restricted,
parsed_way.is_startpoint,
parsed_way.backward_travel_mode,
true,
road_classification));
});
}
external_memory.way_start_end_id_list.push_back(
{OSMWayID(input_way.id()),
OSMNodeID(input_way.nodes().back().ref()),
OSMNodeID(input_way.nodes()[input_way.nodes().size() - 2].ref()),
OSMNodeID(input_way.nodes()[1].ref()),
OSMNodeID(input_way.nodes()[0].ref())});
}
}