rational_basis_spline_surface.hh

#ifndef VTESTBED_IGES_RATIONAL_BASIS_SPLINE_SURFACE_HH
#define VTESTBED_IGES_RATIONAL_BASIS_SPLINE_SURFACE_HH

#include <blitz/array.h>

#include <vtestbed/iges/entity.hh>
#include <vtestbed/iges/types.hh>

namespace vtb {

    namespace iges {

        template <class T>
        class Rational_basis_spline_surface: public Entity {

        public:
            using vec3 = blitz::TinyVector<T,3>;
            using vertex_array = std::vector<std::vector<vec3>>;
            using weight_array = std::vector<std::vector<T>>;
            using knot_array = std::vector<T>;

        private:
            Integer _u_nsegments = 0;
            Integer _v_nsegments = 0;
            Integer _u_degree = 0;
            Integer _v_degree = 0;
            Integer _u_closed = true;
            Integer _v_closed = true;
            Integer _u_periodic = false;
            Integer _v_periodic = false;
            Integer _polynomial = false;
            knot_array _u_knots;
            knot_array _v_knots;
            weight_array _weights;
            vertex_array _points;
            T _u_min{0};
            T _u_max{1};
            T _v_min{0};
            T _v_max{1};

        public:

            Rational_basis_spline_surface() = default;

            Rational_basis_spline_surface(
                knot_array u_knots,
                knot_array v_knots,
                weight_array weights,
                vertex_array points
            );

        protected:

            void
            parameters(iges_ostream& out) const override;

        };

    }

}

#endif // vim:filetype=cpp