mirror of
https://github.com/boostorg/geometry.git
synced 2026-02-12 00:02:09 +00:00
142 lines
3.7 KiB
C++
142 lines
3.7 KiB
C++
#include <boost/geometry/extensions/index/rtree/rtree.hpp>
|
|
|
|
#include <iostream>
|
|
#include <fstream>
|
|
|
|
#include <boost/timer.hpp>
|
|
#include <boost/foreach.hpp>
|
|
|
|
//TEST
|
|
#include <gl/glut.h>
|
|
#include <boost/geometry/extensions/index/rtree/visitors/gl_draw.hpp>
|
|
|
|
typedef boost::geometry::model::point<float, 2, boost::geometry::cs::cartesian> P;
|
|
typedef boost::geometry::model::box<P> B;
|
|
boost::geometry::index::rtree< std::pair<B, size_t> > t;
|
|
|
|
void render_scene(void)
|
|
{
|
|
boost::geometry::index::gl_draw(t, 0, 1, 20000.0f);
|
|
}
|
|
|
|
void resize(int w, int h)
|
|
{
|
|
if ( h == 0 )
|
|
h = 1;
|
|
|
|
float ratio = float(w) / h;
|
|
|
|
glMatrixMode(GL_PROJECTION);
|
|
glLoadIdentity();
|
|
|
|
glViewport(0, 0, w, h);
|
|
|
|
gluPerspective(45.0, ratio, 1, 10000000.0);
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity();
|
|
gluLookAt(
|
|
2000000.0, 2000000.0, 2000000.0,
|
|
0.0, 0.0, -1.0,
|
|
0.0, 1.0, 0.0);
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
boost::timer tim;
|
|
|
|
// randomize boxes
|
|
const size_t n = 1000000;
|
|
//const size_t n = 300;
|
|
const size_t ns = 100000;
|
|
|
|
std::ifstream file_cfg("config.txt");
|
|
std::ifstream file("test_coords.txt");
|
|
|
|
std::cout << "loading data\n";
|
|
std::vector< std::pair<float, float> > coords(n);
|
|
for ( size_t i = 0 ; i < n ; ++i )
|
|
{
|
|
file >> coords[i].first;
|
|
file >> coords[i].second;
|
|
}
|
|
std::cout << "loaded\n";
|
|
|
|
std::cin.get();
|
|
|
|
size_t max_elems, min_elems;
|
|
file_cfg >> max_elems;
|
|
file_cfg >> min_elems;
|
|
std::cout << "max: " << max_elems << ", min: " << min_elems << "\n";
|
|
|
|
t = boost::geometry::index::rtree< std::pair<B, size_t> > (max_elems, min_elems);
|
|
|
|
//std::cout << "inserting time test...\n";
|
|
//tim.restart();
|
|
//for (size_t i = 0 ; i < n ; ++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));
|
|
|
|
// // Zle wyswietla dane, obcina czesc ulamkowa
|
|
// // Zle buduje drzewo dla i == 228
|
|
|
|
// //TEST
|
|
// /*if ( i == 228 )
|
|
// {
|
|
// std::cout << std::fixed << x << ", " << y << "\n";
|
|
// boost::geometry::index::detail::rtree::visitors::detail::print_indexable(std::cout, b);
|
|
// }*/
|
|
|
|
// t.insert(std::make_pair(b, i));
|
|
|
|
// //TEST
|
|
// /*if ( !boost::geometry::index::are_boxes_ok(t) )
|
|
// {
|
|
// std::ofstream log("log1.txt", std::ofstream::trunc);
|
|
// log << std::fixed << i << " - " << x << ", " << y << " - inserted: ";
|
|
// boost::geometry::index::detail::rtree::visitors::detail::print_indexable(log, b);
|
|
// log << '\n';
|
|
// log << ( boost::geometry::index::are_boxes_ok(t) ? "boxes OK" : "WRONG BOXES!" );
|
|
// log << '\n' << t;
|
|
// }*/
|
|
//}
|
|
//std::cout << "time: " << tim.elapsed() << "s\n";
|
|
|
|
{
|
|
std::cout << "loading tree structure...\n";
|
|
std::ifstream is("save.txt");
|
|
t.load(is);
|
|
std::cout << "done.\n";
|
|
}
|
|
|
|
std::cout << "searching time test...\n";
|
|
tim.restart();
|
|
size_t temp = 0;
|
|
for (size_t i = 0 ; i < ns ; ++i )
|
|
{
|
|
float x = coords[i].first;
|
|
float y = coords[i].second;
|
|
std::deque< std::pair<B, size_t> > result = t.find(B(P(x - 10, y - 10), P(x + 10, y + 10)));
|
|
temp += result.size();
|
|
}
|
|
std::cout << "time: " << tim.elapsed() << "s\n";
|
|
std::cout << temp << "\n";
|
|
|
|
std::cin.get();
|
|
|
|
//TEST
|
|
glutInit(&argc, argv);
|
|
glutInitDisplayMode(GLUT_DEPTH | GLUT_SINGLE | GLUT_RGBA);
|
|
glutInitWindowPosition(100,100);
|
|
glutInitWindowSize(800, 600);
|
|
glutCreateWindow("Mouse click to insert new value");
|
|
|
|
glutDisplayFunc(render_scene);
|
|
glutReshapeFunc(resize);
|
|
|
|
glutMainLoop();
|
|
|
|
return 0;
|
|
}
|