Anti-Grain Geometry Tutorial
agg_vcgen_contour.h
1 //----------------------------------------------------------------------------
2 // Anti-Grain Geometry - Version 2.4
3 // Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
4 //
5 // Permission to copy, use, modify, sell and distribute this software
6 // is granted provided this copyright notice appears in all copies.
7 // This software is provided "as is" without express or implied
8 // warranty, and with no claim as to its suitability for any purpose.
9 //
10 //----------------------------------------------------------------------------
11 // Contact: mcseem@antigrain.com
12 // mcseemagg@yahoo.com
13 // http://www.antigrain.com
14 //----------------------------------------------------------------------------
15 
16 #ifndef AGG_VCGEN_CONTOUR_INCLUDED
17 #define AGG_VCGEN_CONTOUR_INCLUDED
18 
19 #include "agg_math_stroke.h"
20 
21 namespace agg
22 {
23 
24  //----------------------------------------------------------vcgen_contour
25  //
26  // See Implementation agg_vcgen_contour.cpp
27  //
28  class vcgen_contour
29  {
30  enum status_e
31  {
32  initial,
33  ready,
34  outline,
35  out_vertices,
36  end_poly,
37  stop
38  };
39 
40  public:
41  typedef vertex_sequence<vertex_dist, 6> vertex_storage;
42  typedef pod_bvector<point_d, 6> coord_storage;
43 
44  vcgen_contour();
45 
46  void line_cap(line_cap_e lc) { m_stroker.line_cap(lc); }
47  void line_join(line_join_e lj) { m_stroker.line_join(lj); }
48  void inner_join(inner_join_e ij) { m_stroker.inner_join(ij); }
49 
50  line_cap_e line_cap() const { return m_stroker.line_cap(); }
51  line_join_e line_join() const { return m_stroker.line_join(); }
52  inner_join_e inner_join() const { return m_stroker.inner_join(); }
53 
54  void width(double w) { m_stroker.width(m_width = w); }
55  void miter_limit(double ml) { m_stroker.miter_limit(ml); }
56  void miter_limit_theta(double t) { m_stroker.miter_limit_theta(t); }
57  void inner_miter_limit(double ml) { m_stroker.inner_miter_limit(ml); }
58  void approximation_scale(double as) { m_stroker.approximation_scale(as); }
59 
60  double width() const { return m_width; }
61  double miter_limit() const { return m_stroker.miter_limit(); }
62  double inner_miter_limit() const { return m_stroker.inner_miter_limit(); }
63  double approximation_scale() const { return m_stroker.approximation_scale(); }
64 
65  void auto_detect_orientation(bool v) { m_auto_detect = v; }
66  bool auto_detect_orientation() const { return m_auto_detect; }
67 
68  // Generator interface
69  void remove_all();
70  void add_vertex(double x, double y, unsigned cmd);
71 
72  // Vertex Source Interface
73  void rewind(unsigned path_id);
74  unsigned vertex(double* x, double* y);
75 
76  private:
77  vcgen_contour(const vcgen_contour&);
78  const vcgen_contour& operator = (const vcgen_contour&);
79 
80  math_stroke<coord_storage> m_stroker;
81  double m_width;
82  vertex_storage m_src_vertices;
83  coord_storage m_out_vertices;
84  status_e m_status;
85  unsigned m_src_vertex;
86  unsigned m_out_vertex;
87  unsigned m_closed;
88  unsigned m_orientation;
89  bool m_auto_detect;
90  };
91 
92 }
93 
94 #endif
agg::math_stroke
Definition: agg_math_stroke.h:57
agg::pod_bvector< point_d, 6 >
agg::vertex_sequence< vertex_dist, 6 >
agg
Definition: agg_arc.cpp:24
agg::vcgen_contour
Definition: agg_vcgen_contour.h:28