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