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//----------------------------------------------------------------------------
// Anti-Grain Geometry (AGG) - Version 2.5
// A high quality rendering engine for C++
// Copyright (C) 2002-2006 Maxim Shemanarev
// Contact: mcseem@antigrain.com
// mcseemagg@yahoo.com
// http://antigrain.com
//
// AGG is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// AGG is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with AGG; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
// MA 02110-1301, USA.
//----------------------------------------------------------------------------
#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
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