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CompositeSqrt3T.hh
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48 
53 //=============================================================================
54 //
55 // CLASS SQRT3T
56 //
57 //=============================================================================
58 
59 #ifndef OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITESQRT3T_HH
60 #define OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITESQRT3T_HH
61 
62 
63 //== INCLUDES =================================================================
64 
65 #include "Composite/CompositeT.hh"
66 #include "Composite/CompositeTraits.hh"
67 
68 
69 //== NAMESPACE ================================================================
70 
71 namespace OpenMesh { // BEGIN_NS_OPENMESH
72 namespace Subdivider { // BEGIN_NS_DECIMATER
73 namespace Uniform { // BEGIN_NS_UNIFORM
74 
75 
76 //== CLASS DEFINITION =========================================================
77 
80 template <typename MeshType, typename RealType=float>
81 class CompositeSqrt3T : public CompositeT<MeshType, RealType>
82 {
83 public:
84 
86 
87 public:
88 
89  CompositeSqrt3T() : Inherited() {};
90  CompositeSqrt3T(MeshType& _mesh) : Inherited(_mesh) {};
91  ~CompositeSqrt3T() {}
92 
93 public:
94 
95  const char *name() const { return "Uniform Composite Sqrt3"; }
96 
97 protected: // inherited interface
98 
99  void apply_rules(void)
100  {
101  Inherited::Tvv3();
102  Inherited::VF();
103  Inherited::FF();
104  Inherited::FVc(coeffs_);
105  }
106 
107 protected:
108 
109  typedef typename Inherited::Coeff Coeff;
110 
114  struct FVCoeff : public Coeff
115  {
116  FVCoeff() : Coeff() { init(50); }
117 
118  void init(size_t _max_valence)
119  {
120  weights_.resize(_max_valence);
121  std::generate(weights_.begin(),
122  weights_.end(), compute_weight() );
123  }
124 
125  double operator()(size_t _valence) { return weights_[_valence]; }
126 
130  {
131  compute_weight() : val_(0) { }
132 
133  double operator()(void) // sqrt(3) weights for non-boundary vertices
134  {
135  return 2.0/3.0 * (cos(2.0*M_PI/val_++)+1.0);
136  }
137  size_t val_;
138  };
139 
140  std::vector<double> weights_;
141 
142  } coeffs_;
143 
144 };
145 
146 
147 //=============================================================================
148 } // END_NS_UNIFORM
149 } // END_NS_SUBDIVIDER
150 } // END_NS_OPENMESH
151 //=============================================================================
152 #endif // OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITESQRT3T_HH defined
153 //=============================================================================
void apply_rules(void)
Assemble here the rule sequence, by calling the constructor of the wanted rules.
Definition: CompositeSqrt3T.hh:99
Uniform composite sqrt(3) subdivision algorithm.
Definition: CompositeSqrt3T.hh:81
This class provides the composite subdivision rules for the uniform case.
Definition: CompositeT.hh:94
const char * name() const
Return name of subdivision algorithm.
Definition: CompositeSqrt3T.hh:95
Helper class.
Definition: CompositeSqrt3T.hh:114
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64

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