Add convenient min()/max() functions to box class

Author: joto

src/geom-box.hpp

@@ -47,6 +47,9 @@ class box_t
     constexpr double width() const noexcept { return m_max_x - m_min_x; }
     constexpr double height() const noexcept { return m_max_y - m_min_y; }
 
+    constexpr point_t min() const noexcept { return {m_min_x, m_min_y}; }
+    constexpr point_t max() const noexcept { return {m_max_x, m_max_y}; }
+
     constexpr friend bool operator==(box_t const &a, box_t const &b)
     {
         return a.min_x() == b.min_x() && a.min_y() == b.min_y() &&

tests/test-geom-box.cpp

@@ -34,6 +34,9 @@ TEST_CASE("Extend box_t with points", "[NoDB]")
 
     REQUIRE(box.width() == Approx(2.0));
     REQUIRE(box.height() == Approx(4.0));
+
+    REQUIRE(box.min() == geom::point_t{1.0, -2.0});
+    REQUIRE(box.max() == geom::point_t{3.0, 2.0});
 }
 
 TEST_CASE("Extend box_t with linestring", "[NoDB]")