52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
// Boost.Geometry
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// Copyright (c) 2022, Oracle and/or its affiliates.
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// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
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// Licensed under the Boost Software License version 1.0.
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// http://www.boost.org/users/license.html
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#ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_GC_TOPOLOGICAL_DIMENSION_HPP
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#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_GC_TOPOLOGICAL_DIMENSION_HPP
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#include <algorithm>
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#include <boost/geometry/algorithms/detail/visit.hpp>
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#include <boost/geometry/algorithms/is_empty.hpp>
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#include <boost/geometry/core/topological_dimension.hpp>
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namespace boost { namespace geometry
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{
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#ifndef DOXYGEN_NO_DETAIL
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namespace detail
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{
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template <typename GeometryCollection>
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inline int gc_topological_dimension(GeometryCollection const& geometry)
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{
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int result = -1;
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detail::visit_breadth_first([&](auto const& g)
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{
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if (! geometry::is_empty(g))
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{
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static const int d = geometry::topological_dimension<decltype(g)>::value;
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result = (std::max)(result, d);
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}
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return result >= 2;
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}, geometry);
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return result;
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}
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} // namespace detail
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#endif // DOXYGEN_NO_DETAIL
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_GC_TOPOLOGICAL_DIMENSION_HPP
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