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- // Boost.Geometry Index
- // Compare performance with std::set using 1-dimensional object
- // (i.e. angle, or number line coordiante)
- // Copyright (c) 2011-2013 Adam Wulkiewicz, Lodz, Poland.
- // 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)
- #include <iostream>
- #include <boost/geometry.hpp>
- #include <boost/geometry/index/rtree.hpp>
- #include <boost/chrono.hpp>
- #include <boost/foreach.hpp>
- #include <boost/random.hpp>
- #include <set>
- int main()
- {
- namespace bg = boost::geometry;
- namespace bgi = bg::index;
- typedef boost::chrono::thread_clock clock_t;
- typedef boost::chrono::duration<float> dur_t;
- size_t values_count = 1001;
- size_t count_start = 10;
- size_t count_stop = 1000;
- size_t count_step = 10;
- size_t insrem_count = 3000000;
- typedef bg::model::point<float, 1, bg::cs::cartesian> P;
- //typedef bgi::rtree<P, bgi::linear<8, 3> > RT;
- typedef bgi::rtree<P, bgi::quadratic<8, 3> > RT;
- //typedef bgi::rtree<P, bgi::rstar<8, 3> > RT;
- RT t;
- std::set<float> s;
- size_t val_i = 0;
- for ( size_t curr_count = count_start ; curr_count < count_stop ; curr_count += count_step )
- {
- // inserting test
- {
- for (; val_i < curr_count ; ++val_i )
- {
- float v = val_i / 100.0f;
- P p(v);
- t.insert(p);
- s.insert(v);
- }
- float v = (val_i+1) / 100.0f;
- P test_p(v);
- std::cout << t.size() << ' ';
- clock_t::time_point start = clock_t::now();
- for (size_t i = 0 ; i < insrem_count ; ++i )
- {
- t.insert(test_p);
- t.remove(test_p);
- }
- dur_t time = clock_t::now() - start;
- std::cout << time.count() << ' ';
- start = clock_t::now();
- for (size_t i = 0 ; i < insrem_count ; ++i )
- {
- s.insert(v);
- s.erase(v);
- }
- time = clock_t::now() - start;
- std::cout << time.count() << ' ';
- }
- std::cout << '\n';
- }
- return 0;
- }
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