ear_clip_triangulator.h
1 /*
2 ** ClanLib SDK
3 ** Copyright (c) 1997-2016 The ClanLib Team
4 **
5 ** This software is provided 'as-is', without any express or implied
6 ** warranty. In no event will the authors be held liable for any damages
7 ** arising from the use of this software.
8 **
9 ** Permission is granted to anyone to use this software for any purpose,
10 ** including commercial applications, and to alter it and redistribute it
11 ** freely, subject to the following restrictions:
12 **
13 ** 1. The origin of this software must not be misrepresented; you must not
14 ** claim that you wrote the original software. If you use this software
15 ** in a product, an acknowledgment in the product documentation would be
16 ** appreciated but is not required.
17 ** 2. Altered source versions must be plainly marked as such, and must not be
18 ** misrepresented as being the original software.
19 ** 3. This notice may not be removed or altered from any source distribution.
20 **
21 ** Note: Some of the libraries ClanLib may link to may have additional
22 ** requirements or restrictions.
23 **
24 ** File Author(s):
25 **
26 ** Harry Storbacka
27 */
28 
29 #pragma once
30 
31 #include <memory>
32 #include "../Math/point.h"
33 #include <vector>
34 
35 namespace clan
36 {
39 
42  {
43  public:
44  float x1, y1, x2, y2, x3, y3;
45  };
46 
47  class EarClipTriangulator_Impl;
48  class EarClipResult;
49 
52  {
55  };
56 
59  {
60  public:
63 
64  virtual ~EarClipTriangulator();
65 
67  std::vector<Pointf> get_vertices();
68 
70  int get_vertice_count();
71 
74 
76  void add_vertex(float x, float y);
77 
81  void add_vertex(const Pointf &p);
82 
84  void clear();
85 
87  void set_orientation(PolygonOrientation orientation);
88 
91 
93  void begin_hole();
94 
96  void end_hole();
97 
98  private:
99  std::shared_ptr<EarClipTriangulator_Impl> impl;
100  };
101 
103 }
void clear()
Remove all vertices from triangulator.
EarClipTriangulator_Triangle.
Definition: ear_clip_triangulator.h:41
Definition: clanapp.h:35
float y2
Definition: ear_clip_triangulator.h:44
void end_hole()
Mark ending of a polygon hole.
float x3
Definition: ear_clip_triangulator.h:44
std::vector< Pointf > get_vertices()
Returns a list of the vertices added to the triangulator.
void add_vertex(float x, float y)
Add the next vertex of the polygon to the triangulator.
PolygonOrientation calculate_polygon_orientation()
Determine the orientation of the vertices in the triangulator.
EarClipResult triangulate()
Perform triangulation.
float x2
Definition: ear_clip_triangulator.h:44
float y3
Definition: ear_clip_triangulator.h:44
void set_orientation(PolygonOrientation orientation)
Set polygon orientation.
float y1
Definition: ear_clip_triangulator.h:44
Definition: ear_clip_triangulator.h:54
PolygonOrientation
Polygon orientations.
Definition: ear_clip_triangulator.h:51
Ear-clipping triangulator.
Definition: ear_clip_triangulator.h:58
Definition: ear_clip_triangulator.h:53
Ear clipping triangulation result structure.
Definition: ear_clip_result.h:43
EarClipTriangulator()
Constructs a triangulator.
int get_vertice_count()
Returns the number of vertices in the triangulator.
2D (x,y) point structure - Float
Definition: point.h:71
float x1
Definition: ear_clip_triangulator.h:44
void begin_hole()
Mark beginning of a polygon hole.