42 #ifndef LOOPSCHEMEMASKT_HH
43 #define LOOPSCHEMEMASKT_HH
48 #include <OpenMesh/Core/System/config.h>
49 #include <OpenMesh/Core/Utils/SingletonT.hh>
62 template <
class T_,
unsigned int cache_size_ = 100>
66 enum { cache_size = cache_size_ };
71 Scalar proj_weights_[cache_size];
72 Scalar limit_weights_[cache_size];
73 Scalar step_weights_[cache_size];
74 std::vector<Scalar> tang0_weights_[cache_size];
75 std::vector<Scalar> tang1_weights_[cache_size];
79 inline static Scalar compute_proj_weight(uint _valence)
82 double denom = (3.0 + 2.0*cos(2.0*M_PI/(
double)_valence));
83 double weight = (64.0*_valence)/(40.0 - denom*denom) - _valence;
84 return (Scalar) weight;
87 inline static Scalar compute_limit_weight(uint _valence)
89 double proj_weight = compute_proj_weight(_valence);
90 proj_weight = proj_weight/(proj_weight + _valence);
91 double weight = (3.0/8.0)/(1.0 - proj_weight + (3.0/8.0));
92 return (Scalar)weight;
95 inline static Scalar compute_step_weight(uint _valence)
97 double proj_weight = compute_proj_weight(_valence);
98 proj_weight = proj_weight/(proj_weight + _valence);
99 double weight = proj_weight - (3.0/8.0);
100 return (Scalar)weight;
103 inline static Scalar compute_tang0_weight(uint _valence, uint _ver_id)
105 return (Scalar)cos(2.0*M_PI*(
double)_ver_id/(
double)_valence);
108 inline static Scalar compute_tang1_weight(uint _valence, uint _ver_id)
110 return (Scalar)sin(2.0*M_PI*(
double)_ver_id/(
double)_valence);
115 proj_weights_[0] = 1;
116 for (uint k = 1; k < cache_size; ++k)
118 proj_weights_[k] = compute_proj_weight(k);
119 limit_weights_[k] = compute_limit_weight(k);
120 step_weights_[k] = compute_step_weight(k);
121 tang0_weights_[k].resize(k);
122 tang1_weights_[k].resize(k);
123 for (uint i = 0; i < k; ++i)
125 tang0_weights_[k][i] = compute_tang0_weight(k,i);
126 tang1_weights_[k][i] = compute_tang1_weight(k,i);
138 inline Scalar proj_weight(uint _valence)
const
140 assert(_valence < cache_size );
141 return proj_weights_[_valence];
144 inline Scalar limit_weight(uint _valence)
const
146 assert(_valence < cache_size );
147 return limit_weights_[_valence];
150 inline Scalar step_weight(uint _valence, uint _step)
const
152 assert(_valence < cache_size);
153 return pow(step_weights_[_valence], (
int)_step);
156 inline Scalar tang0_weight(uint _valence, uint _ver_id)
const
158 assert(_valence < cache_size );
159 assert(_ver_id < _valence);
160 return tang0_weights_[_valence][_ver_id];
163 inline Scalar tang1_weight(uint _valence, uint _ver_id)
const
165 assert(_valence < cache_size );
166 assert(_ver_id < _valence);
167 return tang1_weights_[_valence][_ver_id];
170 void dump(uint _max_valency = cache_size - 1)
const
172 assert(_max_valency <= cache_size - 1);
174 for (uint i = 0; i <= _max_valency; ++i)
187 #endif//LOOPSCHEMEMASKT_HH
A simple singleton template.
Definition: SingletonT.hh:78
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:56
implements cache for the weights of the original Loop scheme supported:
Definition: LoopSchemeMaskT.hh:63