OpenMesh

- Main Page
- Related Pages
- Modules
- Namespaces
- Classes
- Files

- File List
- File Members

All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
CompositeSqrt3T.hh
Go to the documentation of this file.
1 /*===========================================================================*\
2 * *
3 * OpenMesh *
4 * Copyright (C) 2001-2014 by Computer Graphics Group, RWTH Aachen *
5 * www.openmesh.org *
6 * *
7 *---------------------------------------------------------------------------*
8 * This file is part of OpenMesh. *
9 * *
10 * OpenMesh is free software: you can redistribute it and/or modify *
11 * it under the terms of the GNU Lesser General Public License as *
12 * published by the Free Software Foundation, either version 3 of *
13 * the License, or (at your option) any later version with the *
14 * following exceptions: *
15 * *
16 * If other files instantiate templates or use macros *
17 * or inline functions from this file, or you compile this file and *
18 * link it with other files to produce an executable, this file does *
19 * not by itself cause the resulting executable to be covered by the *
20 * GNU Lesser General Public License. This exception does not however *
21 * invalidate any other reasons why the executable file might be *
22 * covered by the GNU Lesser General Public License. *
23 * *
24 * OpenMesh is distributed in the hope that it will be useful, *
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
27 * GNU Lesser General Public License for more details. *
28 * *
29 * You should have received a copy of the GNU LesserGeneral Public *
30 * License along with OpenMesh. If not, *
31 * see <http://www.gnu.org/licenses/>. *
32 * *
33 \*===========================================================================*/
34
35 /*===========================================================================*\
36 * *
37 * $Revision: 990 $ *
38 * $Date: 2014-02-05 10:01:07 +0100 (Mi, 05. Feb 2014) $ *
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 //=============================================================================
OpenMesh::Subdivider::Uniform::CompositeSqrt3T::FVCoeff
Helper class.
Definition: CompositeSqrt3T.hh:107
OpenMesh::Subdivider::Uniform::CompositeSqrt3T::name
const char * name() const
Return name of subdivision algorithm.
Definition: CompositeSqrt3T.hh:88
OpenMesh::Subdivider::Uniform::CompositeSqrt3T
Uniform composite sqrt(3) subdivision algorithm.
Definition: CompositeSqrt3T.hh:74
OpenMesh::Subdivider::Uniform::CompositeSqrt3T::FVCoeff::compute_weight
Definition: CompositeSqrt3T.hh:122
OpenMesh::Subdivider::Uniform::CompositeT::Coeff
Abstract base class for coefficient functions.
Definition: CompositeT.hh:155
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:92
OpenMesh::Subdivider::Uniform::CompositeT
This class provides the composite subdivision rules for the uniform case.
Definition: CompositeT.hh:87