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- // Boost.Geometry
- // Copyright (c) 2017 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)
- #ifndef BOOST_GEOMETRY_TEST_CHECK_VALIDITY_HPP
- #define BOOST_GEOMETRY_TEST_CHECK_VALIDITY_HPP
- #include <boost/foreach.hpp>
- #include <boost/geometry/algorithms/is_valid.hpp>
- template<typename Geometry, typename G1, typename G2>
- inline bool is_output_valid(Geometry const& geometry,
- std::string const& case_id,
- G1 const& g1, G2 const& g2,
- std::string& message)
- {
- bool const result = bg::is_valid(geometry, message);
- if (! result)
- {
- // Check if input was valid. If not, do not report output validity
- if (! bg::is_valid(g1) || ! bg::is_valid(g2))
- {
- std::cout << "WARNING: Input is not considered as valid; "
- << "this can cause that output is invalid: " << case_id
- << std::endl;
- return true;
- }
- }
- return result;
- }
- template
- <
- typename Geometry,
- typename Tag = typename bg::tag<Geometry>::type
- >
- struct check_validity
- {
- template <typename G1, typename G2>
- static inline
- bool apply(Geometry const& geometry,
- std::string const& case_id,
- G1 const& g1, G2 const& g2,
- std::string& message)
- {
- return is_output_valid(geometry, case_id, g1, g2, message);
- }
- };
- // Specialization for vector of <geometry> (e.g. rings)
- template <typename Geometry>
- struct check_validity<Geometry, void>
- {
- template <typename G1, typename G2>
- static inline
- bool apply(Geometry const& geometry,
- std::string const& case_id,
- G1 const& g1, G2 const& g2,
- std::string& message)
- {
- typedef typename boost::range_value<Geometry>::type single_type;
- BOOST_FOREACH(single_type const& element, geometry)
- {
- if (! is_output_valid(element, case_id, g1, g2, message))
- {
- return false;
- }
- }
- return true;
- }
- };
- #endif // BOOST_GEOMETRY_TEST_CHECK_VALIDITY_HPP
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