withPoints_driver.cpp File Reference

#include "drivers/withPoints/withPoints_driver.h"
#include <algorithm>
#include <sstream>
#include <deque>
#include <vector>
#include <cassert>
#include <limits>
#include "dijkstra/pgr_dijkstra.hpp"
#include "withPoints/pgr_withPoints.hpp"
#include "cpp_common/pgr_alloc.hpp"
#include "cpp_common/pgr_assert.h"

Include dependency graph for withPoints_driver.cpp:

Go to the source code of this file.

Functions
void	do_pgr_withPoints (pgr_edge_t *edges, size_t total_edges, Point_on_edge_t *points_p, size_t total_points, pgr_edge_t *edges_of_points, size_t total_edges_of_points, pgr_combination_t *combinations, size_t total_combinations, int64_t *start_pidsArr, size_t size_start_pidsArr, int64_t *end_pidsArr, size_t size_end_pidsArr, char driving_side, bool details, bool directed, bool only_cost, bool normal, General_path_element_t **return_tuples, size_t *return_count, char **log_msg, char **notice_msg, char **err_msg)
template<class G >
std::deque< Path >	pgr_dijkstra (G &graph, std::vector< pgr_combination_t > &combinations, std::vector< int64_t > sources, std::vector< int64_t > targets, bool only_cost, bool normal)

Function Documentation

do_pgr_withPoints()

void do_pgr_withPoints	(	pgr_edge_t *	edges,
		size_t	total_edges,
		Point_on_edge_t *	points_p,
		size_t	total_points,
		pgr_edge_t *	edges_of_points,
		size_t	total_edges_of_points,
		pgr_combination_t *	combinations,
		size_t	total_combinations,
		int64_t *	start_pidsArr,
		size_t	size_start_pidsArr,
		int64_t *	end_pidsArr,
		size_t	size_end_pidsArr,
		char	driving_side,
		bool	details,
		bool	directed,
		bool	only_cost,
		bool	normal,
		General_path_element_t **	return_tuples,
		size_t *	return_count,
		char **	log_msg,
		char **	notice_msg,
		char **	err_msg
	)

Definition at line 93 of file withPoints_driver.cpp.

                        {
    std::ostringstream log;
    std::ostringstream notice;
    std::ostringstream err;
    try {
        pgassert(!(*log_msg));
        pgassert(!(*notice_msg));
        pgassert(!(*err_msg));
        pgassert(!(*return_tuples));
        pgassert((*return_count) == 0);
        pgassert(edges || edges_of_points);
 
        pgrouting::Pg_points_graph pg_graph(
                std::vector<Point_on_edge_t>(
                    points_p,
                    points_p + total_points),
                std::vector< pgr_edge_t >(
                    edges_of_points,
                    edges_of_points + total_edges_of_points),
                normal,
                driving_side,
                directed);
 
        if (pg_graph.has_error()) {
            log << pg_graph.get_log();
            err << pg_graph.get_error();
            *log_msg = pgr_msg(log.str().c_str());
            *err_msg = pgr_msg(err.str().c_str());
            return;
        }
 
 
        std::vector<pgr_combination_t>
                combinations_vector(combinations, combinations + total_combinations);
        std::vector<int64_t>
            start_vertices(start_pidsArr, start_pidsArr + size_start_pidsArr);
        std::vector< int64_t >
            end_vertices(end_pidsArr, end_pidsArr + size_end_pidsArr);
 
        auto vertices(pgrouting::extract_vertices(edges, total_edges));
        vertices = pgrouting::extract_vertices(vertices, pg_graph.new_edges());
 
        graphType gType = directed? DIRECTED: UNDIRECTED;
 
        std::deque< Path > paths;
 
        if (directed) {
            log << "Working with directed Graph\n";
            pgrouting::DirectedGraph digraph(vertices, gType);
            digraph.insert_edges(edges, total_edges);
            digraph.insert_edges(pg_graph.new_edges());
 
            paths = pgr_dijkstra(
                    digraph,
                    combinations_vector,
                    start_vertices, end_vertices,
                    only_cost, normal);
        } else {
            log << "Working with Undirected Graph\n";
            pgrouting::UndirectedGraph undigraph(vertices, gType);
            undigraph.insert_edges(edges, total_edges);
            undigraph.insert_edges(pg_graph.new_edges());
            paths = pgr_dijkstra(
                    undigraph,
                    combinations_vector,
                    start_vertices, end_vertices,
                    only_cost, normal);
        }
 
        if (!details) {
            for (auto &path : paths) {
                path = pg_graph.eliminate_details(path);
            }
        }
 
        /*
         * order paths based on the start_pid, end_pid
         */
        std::sort(paths.begin(), paths.end(),
                [](const Path &a, const Path &b)
                -> bool {
                if (b.start_id() != a.start_id()) {
                return a.start_id() < b.start_id();
                }
                return a.end_id() < b.end_id();
                });
 
        size_t count(0);
        count = count_tuples(paths);
 
 
        if (count == 0) {
            (*return_tuples) = NULL;
            (*return_count) = 0;
            return;
        }
 
        (*return_tuples) = pgr_alloc(count, (*return_tuples));
        log << "Converting a set of paths into the tuples\n";
        (*return_count) = (collapse_paths(return_tuples, paths));
 
        log << "************************************************";
        log << pg_graph.get_log();
        log << "************************************************";
 
        *log_msg = log.str().empty()?
            *log_msg :
            pgr_msg(log.str().c_str());
        *notice_msg = notice.str().empty()?
            *notice_msg :
            pgr_msg(notice.str().c_str());
    } catch (AssertFailedException &except) {
        (*return_tuples) = pgr_free(*return_tuples);
        (*return_count) = 0;
        err << except.what();
        *err_msg = pgr_msg(err.str().c_str());
        *log_msg = pgr_msg(log.str().c_str());
    } catch (std::exception &except) {
        (*return_tuples) = pgr_free(*return_tuples);
        (*return_count) = 0;
        err << except.what();
        *err_msg = pgr_msg(err.str().c_str());
        *log_msg = pgr_msg(log.str().c_str());
    } catch(...) {
        (*return_tuples) = pgr_free(*return_tuples);
        (*return_count) = 0;
        err << "Caught unknown exception!";
        *err_msg = pgr_msg(err.str().c_str());
        *log_msg = pgr_msg(log.str().c_str());
    }
}

References collapse_paths(), count_tuples(), DIRECTED, pgrouting::Pg_points_graph::eliminate_details(), Path::end_id(), pgrouting::extract_vertices(), pgrouting::Pgr_messages::get_error(), pgrouting::Pgr_messages::get_log(), pgrouting::Pgr_messages::has_error(), pgrouting::graph::Pgr_base_graph< G, T_V, T_E >::insert_edges(), pgrouting::Pg_points_graph::new_edges(), pgassert, pgr_alloc(), pgr_dijkstra(), pgr_msg(), and UNDIRECTED.

Referenced by process().

pgr_dijkstra()

template<class G >

std::deque< Path > pgr_dijkstra	(	G &	graph,
		std::vector< pgr_combination_t > &	combinations,
		std::vector< int64_t >	sources,
		std::vector< int64_t >	targets,
		bool	only_cost,
		bool	normal
	)

Definition at line 48 of file withPoints_driver.cpp.

                     {
    std::sort(sources.begin(), sources.end());
    sources.erase(
            std::unique(sources.begin(), sources.end()),
            sources.end());
 
    std::sort(targets.begin(), targets.end());
    targets.erase(
            std::unique(targets.begin(), targets.end()),
            targets.end());
 
    pgrouting::Pgr_dijkstra< G > fn_dijkstra;
    size_t n_goals = (std::numeric_limits<size_t>::max)();
    auto paths = combinations.empty()?
        fn_dijkstra.dijkstra(graph, sources, targets, only_cost)
        : fn_dijkstra.dijkstra(graph, combinations, only_cost, n_goals);
 
    if (!normal) {
        for (auto &path : paths) {
            path.reverse();
        }
    }
    if (!only_cost) {
        for (auto &p : paths) {
            p.recalculate_agg_cost();
        }
    }
    return paths;
}

References pgrouting::Pgr_dijkstra< G >::dijkstra(), and Path::reverse().

Referenced by do_pgr_withPoints(), and pgRouting::pgr_dijkstraVia().