CGAL 6.1.1 - Intersecting Sequences of dD Iso-oriented Boxes

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Box_intersection_d/progress.cpp
#include <CGAL/box_intersection_d.h>
#include <CGAL/Bbox_2.h>
#include <CGAL/Timer.h>
#include <iostream>
#include<cstdlib>
typedef CGAL::Box_intersection_d::Box_d<double,2> Box;
typedef CGAL::Bbox_2 Bbox;
void fill(std::vector<Box>& b, int xbl, int ybl, int n)
{
b.reserve(n * n);
n = 2 * n;
for(int i = 0; i < n; i += 2){
for(int j = 0; j < n; j += 2){
b.push_back(Bbox(xbl + i, ybl + j,
xbl + i + 2, ybl + j + 2));
}
}
}
struct Callback_rep{
Callback_rep(double normalize)
: normalize(normalize)
{
t.start();
}
void progress(double d)
{
d /= normalize;
total += d;
if(total > bound){
std::cout << std::setprecision(3) << total*100 << " % in " << std::setprecision(5) << t.time() << " sec." << std::endl;
bound += 0.1;
}
}
double normalize;
double bound = 0.1;
double total = 0;
int count = 0;
CGAL::Timer t;
};
struct Callback {
std::shared_ptr<Callback_rep> sptr;
Callback(double normalize = 1.0)
: sptr(std::make_shared<Callback_rep>(normalize))
{}
void operator()( const Box& a, const Box& b ) {
++(sptr->count);
std::cout << "box " << a.id() << " intersects box " << b.id() << std::endl;
}
bool report(int dim)
{
return (dim == Box::dimension() - 1);
}
void progress(double d)
{
sptr->progress(d);
}
int count() const
{
return sptr->count;
}
};
int main(int argc, char* argv[]) {
int n = (argc>1)?std::atoi(argv[1]): 5;
int blx = (argc>2)?std::atoi(argv[2]): 1;
int bly = (argc>2)?std::atoi(argv[3]): 1;
std::vector<Box> boxes, queries;
fill(boxes, 0, 0, n);
fill(queries, blx, bly, n);
Callback callback(2.); // because we call segment_tree twice
CGAL::box_intersection_d( boxes.begin(), boxes.end(), queries.begin(), queries.end(), callback);
std::cout << callback.count() << " callback" << std::endl;
return 0;
}
CGAL::Bbox_2
CGAL::Box_intersection_d::Box_d
Box_d is a generic iso-oriented bounding box in dimension .
Definition: Box_d.h:55
CGAL::box_intersection_d
void box_intersection_d(RandomAccessIterator1 begin1, RandomAccessIterator1 end1, RandomAccessIterator2 begin2, RandomAccessIterator2 end2, Callback callback, std::ptrdiff_t cutoff=10, CGAL::Box_intersection_d::Topology topology=CGAL::Box_intersection_d::CLOSED, CGAL::Box_intersection_d::Setting setting=CGAL::Box_intersection_d::BIPARTITE)
Invocation of box intersection with default box traits Box_intersection_d::Box_traits_d<Box_handle>,...
std
STL namespace.