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Diffstat (limited to 'src/boost/libs/geometry/index/example/benchmark.cpp')
-rw-r--r-- | src/boost/libs/geometry/index/example/benchmark.cpp | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/src/boost/libs/geometry/index/example/benchmark.cpp b/src/boost/libs/geometry/index/example/benchmark.cpp new file mode 100644 index 00000000..ba2a1dec --- /dev/null +++ b/src/boost/libs/geometry/index/example/benchmark.cpp @@ -0,0 +1,158 @@ +// Boost.Geometry Index +// Additional tests + +// 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> + +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 = 1000000; + size_t queries_count = 100000; + size_t nearest_queries_count = 10000; + unsigned neighbours_count = 10; + + std::vector< std::pair<float, float> > coords; + + //randomize values + { + boost::mt19937 rng; + //rng.seed(static_cast<unsigned int>(std::time(0))); + float max_val = static_cast<float>(values_count / 2); + boost::uniform_real<float> range(-max_val, max_val); + boost::variate_generator<boost::mt19937&, boost::uniform_real<float> > rnd(rng, range); + + coords.reserve(values_count); + + std::cout << "randomizing data\n"; + for ( size_t i = 0 ; i < values_count ; ++i ) + { + coords.push_back(std::make_pair(rnd(), rnd())); + } + std::cout << "randomized\n"; + } + + typedef bg::model::point<double, 2, bg::cs::cartesian> P; + typedef bg::model::box<P> B; + typedef bgi::rtree<B, bgi::linear<16, 4> > RT; + //typedef bgi::rtree<B, bgi::quadratic<8, 3> > RT; + //typedef bgi::rtree<B, bgi::rstar<8, 3> > RT; + + std::cout << "sizeof rtree: " << sizeof(RT) << std::endl; + + for (;;) + { + RT t; + + // inserting test + { + clock_t::time_point start = clock_t::now(); + for (size_t i = 0 ; i < values_count ; ++i ) + { + float x = coords[i].first; + float y = coords[i].second; + B b(P(x - 0.5f, y - 0.5f), P(x + 0.5f, y + 0.5f)); + + t.insert(b); + } + dur_t time = clock_t::now() - start; + std::cout << time << " - insert " << values_count << '\n'; + } + + std::vector<B> result; + result.reserve(100); + B result_one; + + { + clock_t::time_point start = clock_t::now(); + size_t temp = 0; + for (size_t i = 0 ; i < queries_count ; ++i ) + { + float x = coords[i].first; + float y = coords[i].second; + result.clear(); + t.query(bgi::intersects(B(P(x - 10, y - 10), P(x + 10, y + 10))), std::back_inserter(result)); + temp += result.size(); + } + dur_t time = clock_t::now() - start; + std::cout << time << " - query(B) " << queries_count << " found " << temp << '\n'; + } + + { + clock_t::time_point start = clock_t::now(); + size_t temp = 0; + for (size_t i = 0 ; i < queries_count / 2 ; ++i ) + { + float x1 = coords[i].first; + float y1 = coords[i].second; + float x2 = coords[i+1].first; + float y2 = coords[i+1].second; + float x3 = coords[i+2].first; + float y3 = coords[i+2].second; + result.clear(); + t.query( + bgi::intersects(B(P(x1 - 10, y1 - 10), P(x1 + 10, y1 + 10))) + && + !bgi::within(B(P(x2 - 10, y2 - 10), P(x2 + 10, y2 + 10))) + && + !bgi::overlaps(B(P(x3 - 10, y3 - 10), P(x3 + 10, y3 + 10))) + , + std::back_inserter(result) + ); + temp += result.size(); + } + dur_t time = clock_t::now() - start; + std::cout << time << " - query(i && !w && !o) " << queries_count << " found " << temp << '\n'; + } + + result.clear(); + + { + clock_t::time_point start = clock_t::now(); + size_t temp = 0; + for (size_t i = 0 ; i < nearest_queries_count ; ++i ) + { + float x = coords[i].first + 100; + float y = coords[i].second + 100; + result.clear(); + temp += t.query(bgi::nearest(P(x, y), neighbours_count), std::back_inserter(result)); + } + dur_t time = clock_t::now() - start; + std::cout << time << " - query(nearest(P, " << neighbours_count << ")) " << nearest_queries_count << " found " << temp << '\n'; + } + + { + clock_t::time_point start = clock_t::now(); + for (size_t i = 0 ; i < values_count / 10 ; ++i ) + { + float x = coords[i].first; + float y = coords[i].second; + B b(P(x - 0.5f, y - 0.5f), P(x + 0.5f, y + 0.5f)); + + t.remove(b); + } + dur_t time = clock_t::now() - start; + std::cout << time << " - remove " << values_count / 10 << '\n'; + } + + std::cout << "------------------------------------------------\n"; + } + + return 0; +} |