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CompositeSqrt3T.hh
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33 \*===========================================================================*/
34
35 /*===========================================================================*\
36 * *
37 * $Revision: 736 $ *
38 * $Date: 2012-10-08 09:30:49 +0200 (Mo, 08 Okt 2012) $ *
39 * *
40 \*===========================================================================*/
41
46 //=============================================================================
47 //
48 // CLASS SQRT3T
49 //
50 //=============================================================================
51
52 #ifndef OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITESQRT3T_HH
53 #define OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITESQRT3T_HH
54
55
56 //== INCLUDES =================================================================
57
58 #include "Composite/CompositeT.hh"
59 #include "Composite/CompositeTraits.hh"
60
61
62 //== NAMESPACE ================================================================
63
64 namespace OpenMesh { // BEGIN_NS_OPENMESH
65 namespace Subdivider { // BEGIN_NS_DECIMATER
66 namespace Uniform { // BEGIN_NS_UNIFORM
67
68
69 //== CLASS DEFINITION =========================================================
70
73 template <typename MeshType, typename RealType=float>
74 class CompositeSqrt3T : public CompositeT<MeshType, RealType>
75 {
76 public:
77
78 typedef CompositeT<MeshType, RealType> Inherited;
79
80 public:
81
82 CompositeSqrt3T() : Inherited() {};
83 CompositeSqrt3T(MeshType& _mesh) : Inherited(_mesh) {};
84 ~CompositeSqrt3T() {}
85
86 public:
87
88 const char *name() const { return "Uniform Composite Sqrt3"; }
89
90 protected: // inherited interface
91
92 void apply_rules(void)
93 {
94 Inherited::Tvv3();
95 Inherited::VF();
96 Inherited::FF();
97 Inherited::FVc(coeffs_);
98 }
99
100 protected:
101
102 typedef typename Inherited::Coeff Coeff;
103
107 struct FVCoeff : public Coeff
108 {
109 FVCoeff() : Coeff() { init(50); }
110
111 void init(size_t _max_valence)
112 {
113 weights_.resize(_max_valence);
114 std::generate(weights_.begin(),
115 weights_.end(), compute_weight() );
116 }
117
118 double operator()(size_t _valence) { return weights_[_valence]; }
119
122 struct compute_weight
123 {
124 compute_weight() : val_(0) { }
125
126 double operator()(void) // sqrt(3) weights for non-boundary vertices
127 {
128 return 2.0/3.0 * (cos(2.0*M_PI/val_++)+1.0);
129 }
130 size_t val_;
131 };
132
133 std::vector<double> weights_;
134
135 } coeffs_;
136
137 };
138
139
140 //=============================================================================
141 } // END_NS_UNIFORM
142 } // END_NS_SUBDIVIDER
143 } // END_NS_OPENMESH
144 //=============================================================================
145 #endif // OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITESQRT3T_HH defined
146 //=============================================================================