//---------------------------------------------------------------------------- // Anti-Grain Geometry - Version 2.4 // Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com) // // Permission to copy, use, modify, sell and distribute this software // is granted provided this copyright notice appears in all copies. // This software is provided "as is" without express or implied // warranty, and with no claim as to its suitability for any purpose. // //---------------------------------------------------------------------------- // Contact: mcseem@antigrain.com // mcseemagg@yahoo.com // http://www.antigrain.com //---------------------------------------------------------------------------- #ifndef AGG_VCGEN_BSPLINE_INCLUDED #define AGG_VCGEN_BSPLINE_INCLUDED #include "agg_basics.h" #include "agg_array.h" #include "agg_bspline.h" namespace agg { //==========================================================vcgen_bspline class vcgen_bspline { enum status_e { initial, ready, polygon, end_poly, stop }; public: typedef pod_bvector<point_d, 6> vertex_storage; vcgen_bspline(); void interpolation_step(double v) { m_interpolation_step = v; } double interpolation_step() const { return m_interpolation_step; } // Vertex Generator Interface void remove_all(); void add_vertex(double x, double y, unsigned cmd); // Vertex Source Interface void rewind(unsigned path_id); unsigned vertex(double* x, double* y); private: vcgen_bspline(const vcgen_bspline&); const vcgen_bspline& operator = (const vcgen_bspline&); vertex_storage m_src_vertices; bspline m_spline_x; bspline m_spline_y; double m_interpolation_step; unsigned m_closed; status_e m_status; unsigned m_src_vertex; double m_cur_abscissa; double m_max_abscissa; }; } #endif