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- // Boost.Geometry (aka GGL, Generic Geometry Library)
- // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
- // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
- // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
- // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
- // (geolib/GGL), copyright (c) 1995-2010 Geodan, 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_STRATEGIES_TRANSFORM_INVERSE_TRANSFORMER_HPP
- #define BOOST_GEOMETRY_STRATEGIES_TRANSFORM_INVERSE_TRANSFORMER_HPP
- #include <boost/qvm/mat.hpp>
- #include <boost/qvm/mat_operations.hpp>
- #include <boost/geometry/strategies/transform/matrix_transformers.hpp>
- namespace boost { namespace geometry
- {
- namespace strategy { namespace transform
- {
- /*!
- \brief Transformation strategy to do an inverse transformation in a Cartesian coordinate system
- \ingroup strategies
- */
- template
- <
- typename CalculationType,
- std::size_t Dimension1,
- std::size_t Dimension2
- >
- class inverse_transformer
- : public matrix_transformer<CalculationType, Dimension1, Dimension2>
- {
- public :
- template <typename Transformer>
- inline inverse_transformer(Transformer const& input)
- {
- this->m_matrix = boost::qvm::inverse(input.matrix());
- }
- };
- }} // namespace strategy::transform
- }} // namespace boost::geometry
- #endif // BOOST_GEOMETRY_STRATEGIES_TRANSFORM_INVERSE_TRANSFORMER_HPP
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