75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
|
//----------------------------------------------------------------------------
|
||
|
|
// 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
|
||
|
|
|