OpenMesh: OpenMesh/Tools/Subdivider/Uniform/CompositeSqrt3T.hh Source File

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CompositeSqrt3T.hh
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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 = double>
81 class CompositeSqrt3T : public CompositeT<MeshType, RealType>
82 {
83 public:
84
85 typedef CompositeT<MeshType, RealType> Inherited;
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
129 struct compute_weight
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 //=============================================================================
OpenMesh::Subdivider::Uniform::CompositeT::Coeff
Abstract base class for coefficient functions.
Definition: CompositeT.hh:162
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64
OpenMesh::Subdivider::Uniform::CompositeSqrt3T::FVCoeff
Helper class.
Definition: CompositeSqrt3T.hh:114
OpenMesh::Subdivider::Uniform::CompositeT
This class provides the composite subdivision rules for the uniform case.
Definition: CompositeT.hh:94
OpenMesh::Subdivider::Uniform::CompositeSqrt3T
Uniform composite sqrt(3) subdivision algorithm.
Definition: CompositeSqrt3T.hh:81
OpenMesh::Subdivider::Uniform::CompositeSqrt3T::apply_rules
void apply_rules(void)
Assemble here the rule sequence, by calling the constructor of the wanted rules.
Definition: CompositeSqrt3T.hh:99
OpenMesh::Subdivider::Uniform::CompositeSqrt3T::FVCoeff::compute_weight
Definition: CompositeSqrt3T.hh:129
OpenMesh::Subdivider::Uniform::CompositeSqrt3T::name
const char * name() const
Return name of subdivision algorithm.
Definition: CompositeSqrt3T.hh:95