556 lines
26 KiB
C++
556 lines
26 KiB
C++
#ifndef GEOSPATIAL_QUERY_HPP
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#define GEOSPATIAL_QUERY_HPP
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#include "engine/phantom_node.hpp"
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#include "util/bearing.hpp"
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#include "util/coordinate_calculation.hpp"
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#include "util/rectangle.hpp"
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#include "util/typedefs.hpp"
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#include "util/web_mercator.hpp"
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#include "osrm/coordinate.hpp"
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#include <algorithm>
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#include <cmath>
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#include <memory>
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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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inline std::pair<bool, bool> boolPairAnd(const std::pair<bool, bool> &A,
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const std::pair<bool, bool> &B)
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{
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return std::make_pair(A.first && B.first, A.second && B.second);
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}
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// Implements complex queries on top of an RTree and builds PhantomNodes from it.
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//
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// Only holds a weak reference on the RTree and coordinates!
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template <typename RTreeT, typename DataFacadeT> class GeospatialQuery
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{
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using EdgeData = typename RTreeT::EdgeData;
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using CoordinateList = typename RTreeT::CoordinateList;
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using CandidateSegment = typename RTreeT::CandidateSegment;
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public:
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GeospatialQuery(RTreeT &rtree_, const CoordinateList &coordinates_, DataFacadeT &datafacade_)
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: rtree(rtree_), coordinates(coordinates_), datafacade(datafacade_)
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{
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}
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std::vector<EdgeData> Search(const util::RectangleInt2D &bbox)
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{
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return rtree.SearchInBox(bbox);
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}
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// Returns nearest PhantomNodes in the given bearing range within max_distance.
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// Does not filter by small/big component!
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std::vector<PhantomNodeWithDistance>
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NearestPhantomNodesInRange(const util::Coordinate input_coordinate,
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const double max_distance) const
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{
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auto results =
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rtree.Nearest(input_coordinate,
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[this](const CandidateSegment &segment) { return HasValidEdge(segment); },
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[this, max_distance, input_coordinate](const std::size_t,
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const CandidateSegment &segment) {
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return CheckSegmentDistance(input_coordinate, segment, max_distance);
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});
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return MakePhantomNodes(input_coordinate, results);
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}
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// Returns nearest PhantomNodes in the given bearing range within max_distance.
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// Does not filter by small/big component!
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std::vector<PhantomNodeWithDistance>
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NearestPhantomNodesInRange(const util::Coordinate input_coordinate,
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const double max_distance,
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const int bearing,
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const int bearing_range) const
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{
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auto results = rtree.Nearest(
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input_coordinate,
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[this, bearing, bearing_range, max_distance](const CandidateSegment &segment) {
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return boolPairAnd(CheckSegmentBearing(segment, bearing, bearing_range),
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HasValidEdge(segment));
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},
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[this, max_distance, input_coordinate](const std::size_t,
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const CandidateSegment &segment) {
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return CheckSegmentDistance(input_coordinate, segment, max_distance);
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});
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return MakePhantomNodes(input_coordinate, results);
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}
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// Returns max_results nearest PhantomNodes in the given bearing range.
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// Does not filter by small/big component!
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std::vector<PhantomNodeWithDistance>
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NearestPhantomNodes(const util::Coordinate input_coordinate,
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const unsigned max_results,
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const int bearing,
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const int bearing_range) const
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{
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auto results = rtree.Nearest(
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input_coordinate,
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[this, bearing, bearing_range](const CandidateSegment &segment) {
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return boolPairAnd(CheckSegmentBearing(segment, bearing, bearing_range),
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HasValidEdge(segment));
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},
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[max_results](const std::size_t num_results, const CandidateSegment &) {
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return num_results >= max_results;
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});
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return MakePhantomNodes(input_coordinate, results);
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}
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// Returns max_results nearest PhantomNodes in the given bearing range within the maximum
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// distance.
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// Does not filter by small/big component!
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std::vector<PhantomNodeWithDistance>
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NearestPhantomNodes(const util::Coordinate input_coordinate,
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const unsigned max_results,
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const double max_distance,
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const int bearing,
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const int bearing_range) const
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{
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auto results = rtree.Nearest(
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input_coordinate,
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[this, bearing, bearing_range](const CandidateSegment &segment) {
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return boolPairAnd(CheckSegmentBearing(segment, bearing, bearing_range),
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HasValidEdge(segment));
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},
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[this, max_distance, max_results, input_coordinate](const std::size_t num_results,
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const CandidateSegment &segment) {
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return num_results >= max_results ||
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CheckSegmentDistance(input_coordinate, segment, max_distance);
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});
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return MakePhantomNodes(input_coordinate, results);
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}
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// Returns max_results nearest PhantomNodes.
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// Does not filter by small/big component!
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std::vector<PhantomNodeWithDistance>
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NearestPhantomNodes(const util::Coordinate input_coordinate, const unsigned max_results) const
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{
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auto results =
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rtree.Nearest(input_coordinate,
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[this](const CandidateSegment &segment) { return HasValidEdge(segment); },
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[max_results](const std::size_t num_results, const CandidateSegment &) {
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return num_results >= max_results;
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});
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return MakePhantomNodes(input_coordinate, results);
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}
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// Returns max_results nearest PhantomNodes in the given max distance.
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// Does not filter by small/big component!
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std::vector<PhantomNodeWithDistance>
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NearestPhantomNodes(const util::Coordinate input_coordinate,
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const unsigned max_results,
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const double max_distance) const
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{
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auto results =
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rtree.Nearest(input_coordinate,
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[this](const CandidateSegment &segment) { return HasValidEdge(segment); },
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[this, max_distance, max_results, input_coordinate](
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const std::size_t num_results, const CandidateSegment &segment) {
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return num_results >= max_results ||
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CheckSegmentDistance(input_coordinate, segment, max_distance);
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});
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return MakePhantomNodes(input_coordinate, results);
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}
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// Returns the nearest phantom node. If this phantom node is not from a big component
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// a second phantom node is return that is the nearest coordinate in a big component.
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std::pair<PhantomNode, PhantomNode>
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NearestPhantomNodeWithAlternativeFromBigComponent(const util::Coordinate input_coordinate,
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const double max_distance) const
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{
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bool has_small_component = false;
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bool has_big_component = false;
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auto results = rtree.Nearest(
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input_coordinate,
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[this, &has_big_component, &has_small_component](const CandidateSegment &segment) {
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auto use_segment =
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(!has_small_component || (!has_big_component && !IsTinyComponent(segment)));
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auto use_directions = std::make_pair(use_segment, use_segment);
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const auto valid_edges = HasValidEdge(segment);
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if (valid_edges.first || valid_edges.second)
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{
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has_big_component = has_big_component || !IsTinyComponent(segment);
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has_small_component = has_small_component || IsTinyComponent(segment);
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}
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use_directions = boolPairAnd(use_directions, valid_edges);
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return use_directions;
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},
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[this, &has_big_component, max_distance, input_coordinate](
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const std::size_t num_results, const CandidateSegment &segment) {
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return (num_results > 0 && has_big_component) ||
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CheckSegmentDistance(input_coordinate, segment, max_distance);
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});
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if (results.size() == 0)
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{
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return std::make_pair(PhantomNode{}, PhantomNode{});
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}
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BOOST_ASSERT(results.size() == 1 || results.size() == 2);
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return std::make_pair(MakePhantomNode(input_coordinate, results.front()).phantom_node,
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MakePhantomNode(input_coordinate, results.back()).phantom_node);
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}
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// Returns the nearest phantom node. If this phantom node is not from a big component
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// a second phantom node is return that is the nearest coordinate in a big component.
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std::pair<PhantomNode, PhantomNode>
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NearestPhantomNodeWithAlternativeFromBigComponent(const util::Coordinate input_coordinate) const
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{
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bool has_small_component = false;
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bool has_big_component = false;
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auto results = rtree.Nearest(
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input_coordinate,
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[this, &has_big_component, &has_small_component](const CandidateSegment &segment) {
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auto use_segment =
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(!has_small_component || (!has_big_component && !IsTinyComponent(segment)));
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auto use_directions = std::make_pair(use_segment, use_segment);
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if (!use_directions.first && !use_directions.second)
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return use_directions;
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const auto valid_edges = HasValidEdge(segment);
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if (valid_edges.first || valid_edges.second)
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{
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has_big_component = has_big_component || !IsTinyComponent(segment);
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has_small_component = has_small_component || IsTinyComponent(segment);
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}
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use_directions = boolPairAnd(use_directions, valid_edges);
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return use_directions;
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},
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[&has_big_component](const std::size_t num_results, const CandidateSegment &) {
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return num_results > 0 && has_big_component;
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});
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if (results.size() == 0)
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{
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return std::make_pair(PhantomNode{}, PhantomNode{});
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}
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BOOST_ASSERT(results.size() == 1 || results.size() == 2);
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return std::make_pair(MakePhantomNode(input_coordinate, results.front()).phantom_node,
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MakePhantomNode(input_coordinate, results.back()).phantom_node);
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}
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// Returns the nearest phantom node. If this phantom node is not from a big component
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// a second phantom node is return that is the nearest coordinate in a big component.
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std::pair<PhantomNode, PhantomNode> NearestPhantomNodeWithAlternativeFromBigComponent(
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const util::Coordinate input_coordinate, const int bearing, const int bearing_range) const
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{
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bool has_small_component = false;
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bool has_big_component = false;
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auto results = rtree.Nearest(
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input_coordinate,
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[this, bearing, bearing_range, &has_big_component, &has_small_component](
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const CandidateSegment &segment) {
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auto use_segment =
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(!has_small_component || (!has_big_component && !IsTinyComponent(segment)));
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auto use_directions = std::make_pair(use_segment, use_segment);
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use_directions = boolPairAnd(use_directions, HasValidEdge(segment));
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if (use_segment)
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{
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use_directions =
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boolPairAnd(CheckSegmentBearing(segment, bearing, bearing_range),
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HasValidEdge(segment));
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if (use_directions.first || use_directions.second)
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{
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has_big_component = has_big_component || !IsTinyComponent(segment);
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has_small_component = has_small_component || IsTinyComponent(segment);
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}
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}
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return use_directions;
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},
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[&has_big_component](const std::size_t num_results, const CandidateSegment &) {
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return num_results > 0 && has_big_component;
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});
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if (results.size() == 0)
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{
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return std::make_pair(PhantomNode{}, PhantomNode{});
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}
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BOOST_ASSERT(results.size() > 0);
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return std::make_pair(MakePhantomNode(input_coordinate, results.front()).phantom_node,
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MakePhantomNode(input_coordinate, results.back()).phantom_node);
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}
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// Returns the nearest phantom node. If this phantom node is not from a big component
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// a second phantom node is return that is the nearest coordinate in a big component.
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std::pair<PhantomNode, PhantomNode>
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NearestPhantomNodeWithAlternativeFromBigComponent(const util::Coordinate input_coordinate,
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const double max_distance,
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const int bearing,
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const int bearing_range) const
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{
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bool has_small_component = false;
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bool has_big_component = false;
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auto results = rtree.Nearest(
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input_coordinate,
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[this, bearing, bearing_range, &has_big_component, &has_small_component](
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const CandidateSegment &segment) {
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auto use_segment =
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(!has_small_component || (!has_big_component && !IsTinyComponent(segment)));
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auto use_directions = std::make_pair(use_segment, use_segment);
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use_directions = boolPairAnd(use_directions, HasValidEdge(segment));
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if (use_segment)
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{
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use_directions =
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boolPairAnd(CheckSegmentBearing(segment, bearing, bearing_range),
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HasValidEdge(segment));
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if (use_directions.first || use_directions.second)
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{
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has_big_component = has_big_component || !IsTinyComponent(segment);
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has_small_component = has_small_component || IsTinyComponent(segment);
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}
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}
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return use_directions;
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},
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[this, &has_big_component, max_distance, input_coordinate](
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const std::size_t num_results, const CandidateSegment &segment) {
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return (num_results > 0 && has_big_component) ||
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CheckSegmentDistance(input_coordinate, segment, max_distance);
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});
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if (results.size() == 0)
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{
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return std::make_pair(PhantomNode{}, PhantomNode{});
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}
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BOOST_ASSERT(results.size() > 0);
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return std::make_pair(MakePhantomNode(input_coordinate, results.front()).phantom_node,
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MakePhantomNode(input_coordinate, results.back()).phantom_node);
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}
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private:
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std::vector<PhantomNodeWithDistance>
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MakePhantomNodes(const util::Coordinate input_coordinate,
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const std::vector<EdgeData> &results) const
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{
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std::vector<PhantomNodeWithDistance> distance_and_phantoms(results.size());
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std::transform(results.begin(),
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results.end(),
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distance_and_phantoms.begin(),
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[this, &input_coordinate](const EdgeData &data) {
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return MakePhantomNode(input_coordinate, data);
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});
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return distance_and_phantoms;
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}
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PhantomNodeWithDistance MakePhantomNode(const util::Coordinate input_coordinate,
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const EdgeData &data) const
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{
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util::Coordinate point_on_segment;
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double ratio;
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const auto current_perpendicular_distance =
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util::coordinate_calculation::perpendicularDistance(coordinates[data.u],
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coordinates[data.v],
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input_coordinate,
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point_on_segment,
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ratio);
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// Find the node-based-edge that this belongs to, and directly
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// calculate the forward_weight, forward_offset, reverse_weight, reverse_offset
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EdgeWeight forward_weight_offset = 0, forward_weight = 0;
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EdgeWeight reverse_weight_offset = 0, reverse_weight = 0;
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EdgeDuration forward_duration_offset = 0, forward_duration = 0;
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EdgeDuration reverse_duration_offset = 0, reverse_duration = 0;
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BOOST_ASSERT(data.forward_segment_id.enabled || data.reverse_segment_id.enabled);
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BOOST_ASSERT(!data.reverse_segment_id.enabled ||
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datafacade.GetGeometryIndex(data.forward_segment_id.id).id ==
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datafacade.GetGeometryIndex(data.reverse_segment_id.id).id);
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const auto geometry_id = datafacade.GetGeometryIndex(data.forward_segment_id.id).id;
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const auto component_id = datafacade.GetComponentID(data.forward_segment_id.id);
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const std::vector<EdgeWeight> forward_weight_vector =
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datafacade.GetUncompressedForwardWeights(geometry_id);
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const std::vector<EdgeWeight> reverse_weight_vector =
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datafacade.GetUncompressedReverseWeights(geometry_id);
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const std::vector<EdgeWeight> forward_duration_vector =
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datafacade.GetUncompressedForwardDurations(geometry_id);
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const std::vector<EdgeWeight> reverse_duration_vector =
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datafacade.GetUncompressedReverseDurations(geometry_id);
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for (std::size_t i = 0; i < data.fwd_segment_position; i++)
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{
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forward_weight_offset += forward_weight_vector[i];
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forward_duration_offset += forward_duration_vector[i];
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}
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forward_weight = forward_weight_vector[data.fwd_segment_position];
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forward_duration = forward_duration_vector[data.fwd_segment_position];
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BOOST_ASSERT(data.fwd_segment_position < reverse_weight_vector.size());
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for (std::size_t i = 0; i < reverse_weight_vector.size() - data.fwd_segment_position - 1;
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i++)
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{
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reverse_weight_offset += reverse_weight_vector[i];
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reverse_duration_offset += reverse_duration_vector[i];
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}
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reverse_weight =
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reverse_weight_vector[reverse_weight_vector.size() - data.fwd_segment_position - 1];
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reverse_duration =
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reverse_duration_vector[reverse_duration_vector.size() - data.fwd_segment_position - 1];
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ratio = std::min(1.0, std::max(0.0, ratio));
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if (data.forward_segment_id.id != SPECIAL_SEGMENTID)
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{
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forward_weight = static_cast<EdgeWeight>(forward_weight * ratio);
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forward_duration = static_cast<EdgeDuration>(forward_duration * ratio);
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}
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if (data.reverse_segment_id.id != SPECIAL_SEGMENTID)
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{
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reverse_weight -= static_cast<EdgeWeight>(reverse_weight * ratio);
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reverse_duration -= static_cast<EdgeDuration>(reverse_duration * ratio);
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}
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// check phantom node segments validity
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auto areSegmentsValid = [](auto first, auto last) -> bool {
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return std::find(first, last, INVALID_EDGE_WEIGHT) == last;
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};
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bool is_forward_valid_source =
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areSegmentsValid(forward_weight_vector.begin(), forward_weight_vector.end());
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bool is_forward_valid_target =
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areSegmentsValid(forward_weight_vector.begin(),
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forward_weight_vector.begin() + data.fwd_segment_position + 1);
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bool is_reverse_valid_source =
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areSegmentsValid(reverse_weight_vector.begin(), reverse_weight_vector.end());
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bool is_reverse_valid_target = areSegmentsValid(
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reverse_weight_vector.begin(), reverse_weight_vector.end() - data.fwd_segment_position);
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auto transformed = PhantomNodeWithDistance{PhantomNode{data,
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component_id,
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forward_weight,
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reverse_weight,
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forward_weight_offset,
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reverse_weight_offset,
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forward_duration,
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reverse_duration,
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forward_duration_offset,
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reverse_duration_offset,
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is_forward_valid_source,
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is_forward_valid_target,
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is_reverse_valid_source,
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is_reverse_valid_target,
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point_on_segment,
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input_coordinate},
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current_perpendicular_distance};
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return transformed;
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}
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bool CheckSegmentDistance(const Coordinate input_coordinate,
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const CandidateSegment &segment,
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const double max_distance) const
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{
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BOOST_ASSERT(segment.data.forward_segment_id.id != SPECIAL_SEGMENTID ||
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!segment.data.forward_segment_id.enabled);
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BOOST_ASSERT(segment.data.reverse_segment_id.id != SPECIAL_SEGMENTID ||
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!segment.data.reverse_segment_id.enabled);
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Coordinate wsg84_coordinate =
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util::web_mercator::toWGS84(segment.fixed_projected_coordinate);
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return util::coordinate_calculation::haversineDistance(input_coordinate, wsg84_coordinate) >
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max_distance;
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}
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std::pair<bool, bool> CheckSegmentBearing(const CandidateSegment &segment,
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const int filter_bearing,
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const int filter_bearing_range) const
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|
{
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BOOST_ASSERT(segment.data.forward_segment_id.id != SPECIAL_SEGMENTID ||
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!segment.data.forward_segment_id.enabled);
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BOOST_ASSERT(segment.data.reverse_segment_id.id != SPECIAL_SEGMENTID ||
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!segment.data.reverse_segment_id.enabled);
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const double forward_edge_bearing = util::coordinate_calculation::bearing(
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coordinates[segment.data.u], coordinates[segment.data.v]);
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const double backward_edge_bearing = (forward_edge_bearing + 180) > 360
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? (forward_edge_bearing - 180)
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: (forward_edge_bearing + 180);
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|
|
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const bool forward_bearing_valid =
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util::bearing::CheckInBounds(
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std::round(forward_edge_bearing), filter_bearing, filter_bearing_range) &&
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segment.data.forward_segment_id.enabled;
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const bool backward_bearing_valid =
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util::bearing::CheckInBounds(
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std::round(backward_edge_bearing), filter_bearing, filter_bearing_range) &&
|
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segment.data.reverse_segment_id.enabled;
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return std::make_pair(forward_bearing_valid, backward_bearing_valid);
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}
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|
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/**
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* Checks to see if the edge weights are valid. We might have an edge,
|
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* but a traffic update might set the speed to 0 (weight == INVALID_EDGE_WEIGHT).
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|
* which means that this edge is not currently traversible. If this is the case,
|
|
* then we shouldn't snap to this edge.
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|
*/
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|
std::pair<bool, bool> HasValidEdge(const CandidateSegment &segment) const
|
|
{
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|
|
|
bool forward_edge_valid = false;
|
|
bool reverse_edge_valid = false;
|
|
|
|
const auto &data = segment.data;
|
|
BOOST_ASSERT(data.forward_segment_id.enabled);
|
|
BOOST_ASSERT(data.forward_segment_id.id != SPECIAL_NODEID);
|
|
const auto geometry_id = datafacade.GetGeometryIndex(data.forward_segment_id.id).id;
|
|
|
|
const std::vector<EdgeWeight> forward_weight_vector =
|
|
datafacade.GetUncompressedForwardWeights(geometry_id);
|
|
|
|
if (forward_weight_vector[data.fwd_segment_position] != INVALID_EDGE_WEIGHT)
|
|
{
|
|
forward_edge_valid = data.forward_segment_id.enabled;
|
|
}
|
|
|
|
const std::vector<EdgeWeight> reverse_weight_vector =
|
|
datafacade.GetUncompressedReverseWeights(geometry_id);
|
|
if (reverse_weight_vector[reverse_weight_vector.size() - data.fwd_segment_position - 1] !=
|
|
INVALID_EDGE_WEIGHT)
|
|
{
|
|
reverse_edge_valid = data.reverse_segment_id.enabled;
|
|
}
|
|
|
|
return std::make_pair(forward_edge_valid, reverse_edge_valid);
|
|
}
|
|
|
|
bool IsTinyComponent(const CandidateSegment &segment) const
|
|
{
|
|
const auto &data = segment.data;
|
|
BOOST_ASSERT(data.forward_segment_id.enabled);
|
|
BOOST_ASSERT(data.forward_segment_id.id != SPECIAL_NODEID);
|
|
return datafacade.GetComponentID(data.forward_segment_id.id).is_tiny;
|
|
}
|
|
|
|
const RTreeT &rtree;
|
|
const CoordinateList &coordinates;
|
|
DataFacadeT &datafacade;
|
|
};
|
|
}
|
|
}
|
|
|
|
#endif
|