OpenMesh: OpenMesh/Tools/Subdivider/Adaptive/Composite/Traits.hh Source File

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Traits.hh
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43
48 //=============================================================================
49 //
50 // CLASS Traits
51 //
52 //=============================================================================
53
54 #ifndef OPENMESH_SUBDIVIDER_ADAPTIVE_TRAITS_HH
55 #define OPENMESH_SUBDIVIDER_ADAPTIVE_TRAITS_HH
56
57
58 //== INCLUDES =================================================================
59
60 #include <map>
61 #include <OpenMesh/Core/Mesh/Types/TriMesh_ArrayKernelT.hh>
62
63 //== NAMESPACE ================================================================
64
65 namespace OpenMesh { // BEGIN_NS_OPENMESH
66 namespace Subdivider { // BEGIN_NS_DECIMATER
67 namespace Adaptive { // BEGIN_NS_ADAPTIVE
68
69
70 //== CLASS DEFINITION =========================================================
71
75 // typedef unsigned short state_t;
76 // const state_t mask_final = 1 << ((sizeof(state_t)*8)-1);
77 // const state_t mask_state = ~mask_final;
78
79 typedef int state_t;
80 typedef bool final_t;
81
82 struct State
83 {
84 int state : 31;
85 unsigned final : 1;
86 };
87
88 struct Traits : public OpenMesh::DefaultTraits
89 {
90
91 // add face normals
92 FaceAttributes( OpenMesh::Attributes::Normal );
93
94 // add vertex normals
95 VertexAttributes( OpenMesh::Attributes::Normal );
96
97 // add previous halfedge handle
98 HalfedgeAttributes( OpenMesh::Attributes::PrevHalfedge );
99
100 FaceTraits
101 {
102
103 private:
104
105 typedef typename Refs::Point Point;
106 typedef typename Refs::HalfedgeHandle HalfedgeHandle;
107 typedef std::map<state_t, Point> PositionHistory;
108
109 State state_;
110 HalfedgeHandle red_halfedge_;
111
112 PositionHistory pos_map_;
113
114 public:
115
116 // face state
117 state_t state() const { return state_t(state_.state); }
118 void set_state(const state_t _s) { state_.state = _s; }
119 void inc_state() { ++state_.state; }
120
121 // face not final if divided (loop) or edge not flipped (sqrt(3))
122 final_t final() const { return final_t(state_.final); }
123 void set_final() { state_.final = true; }
124 void set_not_final() { state_.final = false; }
125
126 // halfedge of dividing edge (red-green triangulation)
127 const HalfedgeHandle& red_halfedge() const { return red_halfedge_; }
128 void set_red_halfedge(const HalfedgeHandle& _h) { red_halfedge_ = _h; }
129
130 // position of face, depending on generation _i.
131 void set_position(const int& _i, const Point& _p) { pos_map_[_i] = _p; }
132 const Point position(const int& _i) {
133 if (pos_map_.find(_i) != pos_map_.end())
134 return pos_map_[_i];
135 else {
136
137 if (_i <= 0) {
138 const Point zero_point(0.0, 0.0, 0.0);
139 return zero_point;
140 }
141
142 return position(_i - 1);
143 }
144 }
145 }; // end class FaceTraits
146
147
148 EdgeTraits
149 {
150
151 private:
152
153 typedef typename Refs::Point Point;
154 typedef std::map<state_t, Point> PositionHistory;
155
156 State state_;
157 PositionHistory pos_map_;
158
159 public:
160
161 typedef typename Refs::Scalar Scalar;
162
163 // Scalar weight_;
164
165 // state of edge
166 state_t state() const { return state_t(state_.state); }
167 void set_state(const state_t _s) { state_.state = _s; }
168 void inc_state() { ++state_.state; }
169
170 // edge not final if dividing face (Loop) or edge not flipped (SQRT(3))
171 final_t final() const { return final_t(state_.final); }
172 void set_final() { state_.final = true; }
173 void set_not_final() { state_.final = false; }
174
175 // position of edge, depending on generation _i.
176 void set_position(const int& _i, const Point& _p) { pos_map_[_i] = _p; }
177 const Point position(const int& _i) {
178
179 if (pos_map_.find(_i) != pos_map_.end())
180 {
181 return pos_map_[_i];
182 }
183 else
184 {
185 if (_i <= 0)
186 {
187 const Point zero_point(0.0, 0.0, 0.0);
188 return zero_point;
189 }
190
191 return position(_i - 1);
192 }
193 }
194 }; // end class EdgeTraits
195
196
197 VertexTraits
198 {
199
200 private:
201
202 typedef typename Refs::Point Point;
203 typedef std::map<state_t, Point> PositionHistory;
204
205 State state_;
206
207 PositionHistory pos_map_;
208
209 public:
210
211 // state of vertex
212 state_t state() const { return state_.state; }
213 void set_state(const state_t _s) { state_.state = _s; }
214 void inc_state() { ++state_.state; }
215
216
217 // usually not needed by loop or sqrt(3)
218 final_t final() const { return state_.final; }
219 void set_final() { state_.final = true; }
220 void set_not_final() { state_.final = false; }
221
222 // position of vertex, depending on generation _i. (not for display)
223 void set_position(const int& _i, const Point& _p) { pos_map_[_i] = _p; }
224 const Point position(const int& _i) {
225
226 if (pos_map_.find(_i) != pos_map_.end())
227
228 return pos_map_[_i];
229
230 else {
231
232 if (_i <= 0) {
233
234 const Point zero_point(0.0, 0.0, 0.0);
235 return zero_point;
236 }
237
238 return position(_i - 1);
239 }
240 }
241 }; // end class VertexTraits
242 }; // end class Traits
243
244 //=============================================================================
245 } // END_NS_ADAPTIVE
246 } // END_NS_SUBDIVIDER
247 } // END_NS_OPENMESH
248 //=============================================================================
249 #endif // OPENMESH_SUBDIVIDER_ADAPTIVE_TRAITS_HH defined
250 //=============================================================================
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:59
OpenMesh::Attributes::Normal
@ Normal
Add normals to mesh item (vertices/faces)
Definition: Attributes.hh:82
OpenMesh::Attributes::PrevHalfedge
@ PrevHalfedge
Add storage for previous halfedge (halfedges). The bit is set by default in the DefaultTraits.
Definition: Attributes.hh:84
OpenMesh::Subdivider::Adaptive::state_t
CompositeTraits::state_t state_t
Adaptive Composite Subdivision framework.
Definition: CompositeTraits.hh:250
OpenMesh::VectorT< float, 3 >
OpenMesh::DefaultTraits
Base class for all traits.
Definition: Traits.hh:122
OpenMesh::DefaultTraits::Point
Vec3f Point
The default coordinate type is OpenMesh::Vec3f.
Definition: Traits.hh:124
OpenMesh::Subdivider::Adaptive::State
Definition: Traits.hh:83
OpenMesh::Subdivider::Adaptive::Traits
Definition: Traits.hh:89