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#include "box.h"
namespace md {
std::ostream& operator<<(std::ostream& os, const Box& box)
{
os << "Box(lower_left = " << box.lower_left() << ", upper_right = " << box.upper_right() << ")";
return os;
}
Box get_enclosing_box(const Box& box_a, const Box& box_b)
{
Point lower_left(std::min(box_a.lower_left().x, box_b.lower_left().x),
std::min(box_a.lower_left().y, box_b.lower_left().y));
Point upper_right(std::max(box_a.upper_right().x, box_b.upper_right().x),
std::max(box_a.upper_right().y, box_b.upper_right().y));
return Box(lower_left, upper_right);
}
void Box::translate(md::Real a)
{
ll.x += a;
ll.y += a;
ur.x += a;
ur.y += a;
}
std::vector<Box> Box::refine() const
{
std::vector<Box> result;
// 1 | 2
// 0 | 3
Point new_ll = lower_left();
Point new_ur = center();
result.emplace_back(new_ll, new_ur);
new_ll.y = center().y;
new_ur.y = ur.y;
result.emplace_back(new_ll, new_ur);
new_ll = center();
new_ur = upper_right();
result.emplace_back(new_ll, new_ur);
new_ll.y = ll.y;
new_ur.y = center().y;
result.emplace_back(new_ll, new_ur);
return result;
}
std::vector<Point> Box::corners() const
{
return {ll, Point(ll.x, ur.y), ur, Point(ur.x, ll.y)};
};
}
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