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CompositeLoopT.hh
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42 /*===========================================================================*\
43 * *
44 * $Revision: 1258 $ *
45 * $Date: 2015-04-28 15:07:46 +0200 (Di, 28 Apr 2015) $ *
46 * *
47 \*===========================================================================*/
48
53 //=============================================================================
54 //
55 // CLASS LoopT
56 //
57 //=============================================================================
58
59 #ifndef OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITELOOPT_HH
60 #define OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITELOOPT_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_DECIMATER
74
75
76 //== CLASS DEFINITION =========================================================
77
80 template <class MeshType, class RealType=float>
81 class CompositeLoopT : public CompositeT<MeshType, RealType>
82 {
83 public:
84
85 typedef CompositeT<MeshType, RealType> Inherited;
86
87 public:
88
89 CompositeLoopT() : Inherited() {};
90 CompositeLoopT(MeshType& _mesh) : Inherited(_mesh) {};
91 ~CompositeLoopT() {}
92
93 public:
94
95 const char *name() const { return "Uniform Composite Loop"; }
96
97 protected: // inherited interface
98
99 void apply_rules(void)
100 {
101 Inherited::Tvv4();
102 Inherited::VdE();
103 Inherited::EVc(coeffs_);
104 Inherited::VdE();
105 Inherited::EVc(coeffs_);
106 }
107
108 protected:
109
110 typedef typename Inherited::Coeff Coeff;
111
112
116 struct EVCoeff : public Coeff
117 {
118 EVCoeff() : Coeff() { init(50); }
119
120 void init(size_t _max_valence)
121 {
122 weights_.resize(_max_valence);
123 std::generate(weights_.begin(),
124 weights_.end(), compute_weight() );
125 }
126
127 double operator()(size_t _valence) { return weights_[_valence]; }
128
130 struct compute_weight
131 {
132 compute_weight() : val_(0) { }
133
134 double operator()(void) // Loop weights for non-boundary vertices
135 {
136 // 1 3 2 * pi
137 // - * ( --- + cos ( ------- ) )� - 1.0
138 // 2 2 valence
139 double f1 = 1.5 + cos(2.0*M_PI/val_++);
140 return 0.5 * f1 * f1 - 1.0;
141 }
142 size_t val_;
143
144 };
145
146 std::vector<double> weights_;
147 } coeffs_;
148
149 };
150
151 //=============================================================================
152 } // END_NS_UNIFORM
153 } // END_NS_SUBDIVIDER
154 } // END_NS_OPENMESH
155 //=============================================================================
156 #endif // OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITELOOPT_HH defined
157 //=============================================================================
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64
OpenMesh::Subdivider::Uniform::CompositeLoopT::apply_rules
void apply_rules(void)
Assemble here the rule sequence, by calling the constructor of the wanted rules.
Definition: CompositeLoopT.hh:99
OpenMesh::Subdivider::Uniform::CompositeLoopT::EVCoeff
Helper struct.
Definition: CompositeLoopT.hh:116
OpenMesh::Subdivider::Uniform::CompositeT
This class provides the composite subdivision rules for the uniform case.
Definition: CompositeT.hh:94
OpenMesh::Subdivider::Uniform::CompositeLoopT::EVCoeff::compute_weight
Definition: CompositeLoopT.hh:130
OpenMesh::Subdivider::Uniform::CompositeLoopT
Uniform composite Loop subdivision algorithm.
Definition: CompositeLoopT.hh:81
OpenMesh::Subdivider::Uniform::CompositeLoopT::name
const char * name() const
Return name of subdivision algorithm.
Definition: CompositeLoopT.hh:95