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