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151
include/boost/geometry/algorithms/detail/is_valid/has_invalid_coordinate.hpp
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| // Boost.Geometry (aka GGL, Generic Geometry Library) | ||
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| // Copyright (c) 2014-2015, Oracle and/or its affiliates. | ||
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| // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle | ||
| // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle | ||
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| // Licensed under the Boost Software License version 1.0. | ||
| // http://www.boost.org/users/license.html | ||
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| #ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_IS_VALID_HAS_INVALID_COORDINATE_HPP | ||
| #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_IS_VALID_HAS_INVALID_COORDINATE_HPP | ||
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| #include <cstddef> | ||
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| #include <boost/type_traits/is_floating_point.hpp> | ||
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| #include <boost/geometry/core/coordinate_type.hpp> | ||
| #include <boost/geometry/core/point_type.hpp> | ||
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| #include <boost/geometry/util/has_non_finite_coordinate.hpp> | ||
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| #include <boost/geometry/iterators/point_iterator.hpp> | ||
| #include <boost/geometry/views/detail/indexed_point_view.hpp> | ||
| #include <boost/geometry/algorithms/detail/check_iterator_range.hpp> | ||
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| namespace boost { namespace geometry | ||
| { | ||
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| #ifndef DOXYGEN_NO_DETAIL | ||
| namespace detail { namespace is_valid | ||
| { | ||
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| struct always_valid | ||
| { | ||
| template <typename Geometry, typename VisitPolicy> | ||
| static inline bool apply(Geometry const&, VisitPolicy& visitor) | ||
| { | ||
| return ! visitor.template apply<no_failure>(); | ||
| } | ||
| }; | ||
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| struct point_has_invalid_coordinate | ||
| { | ||
| template <typename Point, typename VisitPolicy> | ||
| static inline bool apply(Point const& point, VisitPolicy& visitor) | ||
| { | ||
| boost::ignore_unused(visitor); | ||
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| return | ||
| geometry::has_non_finite_coordinate(point) | ||
| ? | ||
| (! visitor.template apply<failure_invalid_coordinate>()) | ||
| : | ||
| (! visitor.template apply<no_failure>()); | ||
| } | ||
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| template <typename Point> | ||
| static inline bool apply(Point const& point) | ||
| { | ||
| return geometry::has_non_finite_coordinate(point); | ||
| } | ||
| }; | ||
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| struct indexed_has_invalid_coordinate | ||
| { | ||
| template <typename Geometry, typename VisitPolicy> | ||
| static inline bool apply(Geometry const& geometry, VisitPolicy& visitor) | ||
| { | ||
| geometry::detail::indexed_point_view<Geometry const, 0> p0(geometry); | ||
| geometry::detail::indexed_point_view<Geometry const, 1> p1(geometry); | ||
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| return point_has_invalid_coordinate::apply(p0, visitor) | ||
| || point_has_invalid_coordinate::apply(p1, visitor); | ||
| } | ||
| }; | ||
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| struct range_has_invalid_coordinate | ||
| { | ||
| struct point_has_valid_coordinates | ||
| { | ||
| template <typename Point> | ||
| static inline bool apply(Point const& point) | ||
| { | ||
| return ! point_has_invalid_coordinate::apply(point); | ||
| } | ||
| }; | ||
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| template <typename Geometry, typename VisitPolicy> | ||
| static inline bool apply(Geometry const& geometry, VisitPolicy& visitor) | ||
| { | ||
| boost::ignore_unused(visitor); | ||
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| bool const has_valid_coordinates = detail::check_iterator_range | ||
| < | ||
| point_has_valid_coordinates, | ||
| true // do not consider an empty range as problematic | ||
| >::apply(geometry::points_begin(geometry), | ||
| geometry::points_end(geometry)); | ||
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| return has_valid_coordinates | ||
| ? | ||
| (! visitor.template apply<no_failure>()) | ||
| : | ||
| (! visitor.template apply<failure_invalid_coordinate>()); | ||
| } | ||
| }; | ||
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| template | ||
| < | ||
| typename Geometry, | ||
| typename Tag = typename tag<Geometry>::type, | ||
| bool HasFloatingPointCoordinates = boost::is_floating_point | ||
| < | ||
| typename coordinate_type<Geometry>::type | ||
| >::value | ||
| > | ||
| struct has_invalid_coordinate | ||
| : range_has_invalid_coordinate | ||
| {}; | ||
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| template <typename Geometry, typename Tag> | ||
| struct has_invalid_coordinate<Geometry, Tag, false> | ||
| : always_valid | ||
| {}; | ||
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| template <typename Point> | ||
| struct has_invalid_coordinate<Point, point_tag, true> | ||
| : point_has_invalid_coordinate | ||
| {}; | ||
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| template <typename Segment> | ||
| struct has_invalid_coordinate<Segment, segment_tag, true> | ||
| : indexed_has_invalid_coordinate | ||
| {}; | ||
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| template <typename Box> | ||
| struct has_invalid_coordinate<Box, box_tag, true> | ||
| : indexed_has_invalid_coordinate | ||
| {}; | ||
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| }} // namespace detail::is_valid | ||
| #endif // DOXYGEN_NO_DETAIL | ||
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| }} // namespace boost::geometry | ||
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| #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_IS_VALID_HAS_INVALID_COORDINATE_HPP |
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