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- // Boost.Geometry (aka GGL, Generic Geometry Library)
- //
- // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
- // Use, modification and distribution is subject to the Boost Software License,
- // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt)
- // SOCI example
- // a: using boost::tuple to retrieve points
- // SOCI is a generic C++ template interface to access relational databases
- // To build and run this example:
- // 1) download SOCI from http://soci.sourceforge.net/
- // 2) put it in contrib/soci-3.0.0 (or another version/folder, but then update this VCPROJ)
- // 3) adapt your makefile or use this VCPROJ file
- // (note that SOCI sources are included directly, building SOCI is not necessary)
- // 4) load the demo-data, see script data/cities.sql (for PostgreSQL)
- #include <soci.h>
- #include <soci-postgresql.h>
- #include <boost/algorithm/string.hpp>
- #include <boost/optional.hpp>
- #include <boost/timer.hpp>
- #include <boost/random.hpp>
- #include <boost/tuple/tuple.hpp>
- #include <iostream>
- #include <istream>
- #include <ostream>
- #include <sstream>
- #include <string>
- #include <exception>
- #include <boost/geometry/geometry.hpp>
- #include <boost/geometry/geometries/adapted/boost_tuple.hpp>
- BOOST_GEOMETRY_REGISTER_BOOST_TUPLE_CS(cs::cartesian);
- int main()
- {
- try
- {
- soci::session sql(soci::postgresql, "dbname=ggl user=ggl password=ggl");
- int count;
- sql << "select count(*) from cities", soci::into(count);
- std::cout << "# Capitals: " << count << std::endl;
- typedef std::vector<boost::tuple<double, double> > V;
- soci::rowset<boost::tuple<double, double> > rows
- = sql.prepare << "select x(location),y(location) from cities";
- V vec;
- std::copy(rows.begin(), rows.end(), std::back_inserter(vec));
- for (V::const_iterator it = vec.begin(); it != vec.end(); ++it)
- {
- std::cout << it->get<0>() << " " << it->get<1>() << std::endl;
- }
- // Calculate distances
- for (V::const_iterator it1 = vec.begin(); it1 != vec.end(); ++it1)
- {
- for (V::const_iterator it2 = vec.begin(); it2 != vec.end(); ++it2)
- {
- std::cout << boost::geometry::dsv(*it1) << " " << boost::geometry::distance(*it1, *it2) << std::endl;
- }
- }
- }
- catch (std::exception const &e)
- {
- std::cerr << "Error: " << e.what() << '\n';
- }
- return 0;
- }
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