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- // Boost.Geometry
- // Unit Test
- // Copyright (c) 2019 Barend Gehrels, Amsterdam, the Netherlands.
- // This file was modified by Oracle on 2019.
- // Modifications copyright (c) 2019, Oracle and/or its affiliates.
- // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
- // 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)
- #include <geometry_test_common.hpp>
- #include <boost/geometry/algorithms/detail/make/make.hpp>
- #include <boost/geometry/geometries/infinite_line.hpp>
- #include <boost/geometry/geometries/point.hpp>
- #include <boost/geometry/util/math.hpp>
- namespace
- {
- // Boost.Test does not support BOOST_CHECK_CLOSE for integral types
- template <typename T>
- bool is_small(T const& value)
- {
- static long double const epsilon = 1.0e-5;
- return bg::math::abs(value) < epsilon;
- }
- }
- template <typename T, typename C>
- void verify_point_on_line(bg::model::infinite_line<T> const& line,
- C const& x, C const& y)
- {
- BOOST_CHECK_MESSAGE(is_small(line.a * x + line.b * y + line.c),
- "Point is not located on the line");
- }
- template <typename T>
- void test_make()
- {
- typedef bg::model::infinite_line<T> line_type;
- // Horizontal through origin
- line_type line = bg::detail::make::make_infinite_line<T>(0, 0, 10, 0);
- verify_point_on_line(line, 0, 0);
- verify_point_on_line(line, 10, 0);
- // Horizontal line above origin
- line = bg::detail::make::make_infinite_line<T>(0, 5, 10, 5);
- verify_point_on_line(line, 0, 5);
- verify_point_on_line(line, 10, 5);
- // Vertical through origin
- line = bg::detail::make::make_infinite_line<T>(0, 0, 0, 10);
- verify_point_on_line(line, 0, 0);
- verify_point_on_line(line, 0, 10);
- // Vertical line left from origin
- line = bg::detail::make::make_infinite_line<T>(5, 0, 5, 10);
- verify_point_on_line(line, 5, 0);
- verify_point_on_line(line, 5, 10);
- // Diagonal through origin
- line = bg::detail::make::make_infinite_line<T>(0, 0, 8, 10);
- verify_point_on_line(line, 0, 0);
- verify_point_on_line(line, 8, 10);
- // Diagonal not through origin
- line = bg::detail::make::make_infinite_line<T>(5, 2, -8, 10);
- verify_point_on_line(line, 5, 2);
- verify_point_on_line(line, -8, 10);
- }
- template <typename T>
- void test_all()
- {
- test_make<T>();
- }
- int test_main(int, char* [])
- {
- test_all<double>();
- test_all<long double>();
- test_all<float>();
- test_all<int>();
- return 0;
- }
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