1 files changed, 51 insertions, 0 deletions
diff --git a/libs/geometry/doc/src/examples/geometries/register/box_2d_4values.cpp b/libs/geometry/doc/src/examples/geometries/register/box_2d_4values.cpp
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+++ b/libs/geometry/doc/src/examples/geometries/register/box_2d_4values.cpp
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+// Boost.Geometry (aka GGL, Generic Geometry Library)
+// QuickBook Example
+
+// Copyright (c) 2011-2012 Barend Gehrels, Amsterdam, the Netherlands.
+
+// 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)
+
+//[register_box_2d_4values
+//` Show the use of the macro BOOST_GEOMETRY_REGISTER_BOX_2D_4VALUES
+
+#include <iostream>
+#include <boost/geometry.hpp>
+#include <boost/geometry/geometries/register/point.hpp>
+#include <boost/geometry/geometries/register/box.hpp>
+
+struct my_point
+{
+    int x, y;
+};
+
+struct my_box
+{
+    int left, top, right, bottom;
+};
+
+BOOST_GEOMETRY_REGISTER_POINT_2D(my_point, int, cs::cartesian, x, y)
+
+// Register the box type, also notifying that it is based on "my_point"
+// (even if it does not contain it)
+BOOST_GEOMETRY_REGISTER_BOX_2D_4VALUES(my_box, my_point, left, top, right, bottom)
+
+int main()
+{
+    my_box b = boost::geometry::make<my_box>(0, 0, 2, 2);
+    std::cout << "Area: "  << boost::geometry::area(b) << std::endl;
+    return 0;
+}
+
+//]
+
+
+//[register_box_2d_4values_output
+/*`
+Output:
+[pre
+Area: 4
+]
+*/
+//]