C++ (Cpp) multi_polygon::size示例

示例#1

文件： geometry_equal.hpp 项目： rtpavlovsk21/mapnik

    void operator() (multi_polygon<T> const& mpoly1, multi_polygon<T> const& mpoly2) const
    {
        if (mpoly1.size() != mpoly2.size())
        {
            REQUIRE(false);
        }

        for (auto const& poly : zip_crange(mpoly1, mpoly2))
        {
            (*this)(poly.template get<0>(),poly.template get<1>());
        }
    }

示例#2

文件： geometry_reprojection_impl.hpp 项目： DavidLiuGitHub/mapnik

multi_polygon<T> reproject_internal(multi_polygon<T> const & mpoly, proj_transform const& proj_trans, unsigned int & n_err)
{
    multi_polygon<T> new_mpoly;
    new_mpoly.reserve(mpoly.size());
    for (auto const& poly : mpoly)
    {
        polygon<T> new_poly = reproject_internal(poly, proj_trans, n_err);
        if (!new_poly.exterior_ring.empty())
        {
            new_mpoly.emplace_back(std::move(new_poly));
        }
    }
    return new_mpoly;
}