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ModQuadricT.hh
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35 /*===========================================================================*\
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37 * $Revision: 990 $ *
38 * $Date: 2014-02-05 10:01:07 +0100 (Mi, 05. Feb 2014) $ *
39 * *
40 \*===========================================================================*/
41
42
43 //=============================================================================
44 //
45 // CLASS ModQuadricT
46 //
47 //=============================================================================
48
49 #ifndef OSG_MODQUADRIC_HH
50 #define OSG_MODQUADRIC_HH
51
52
53 //== INCLUDES =================================================================
54
55 #include <float.h>
56 #include <OpenMesh/Tools/Decimater/ModBaseT.hh>
57 #include <OpenMesh/Core/Utils/Property.hh>
58 #include <OpenMesh/Core/Utils/vector_cast.hh>
59 #include <OpenMesh/Core/Geometry/QuadricT.hh>
60
61
62 //== NAMESPACE ================================================================
63
64 namespace OpenMesh {
65 namespace Decimater {
66
67
68 //== CLASS DEFINITION =========================================================
69
70
75 template <class MeshT>
76 class ModQuadricT : public ModBaseT<MeshT>
77 {
78 public:
79
80 // Defines the types Self, Handle, Base, Mesh, and CollapseInfo
81 // and the memberfunction name()
82 DECIMATING_MODULE( ModQuadricT, MeshT, Quadric );
83
84 public:
85
89 ModQuadricT( MeshT &_mesh )
90 : Base(_mesh, false)
91 {
92 unset_max_err();
93 Base::mesh().add_property( quadrics_ );
94 }
95
96
98 virtual ~ModQuadricT()
99 {
100 Base::mesh().remove_property(quadrics_);
101 }
102
103
104 public: // inherited
105
107 virtual void initialize(void);
108
114 virtual float collapse_priority(const CollapseInfo& _ci)
115 {
116 using namespace OpenMesh;
117
118 typedef Geometry::QuadricT<double> Q;
119
120 Q q = Base::mesh().property(quadrics_, _ci.v0);
121 q += Base::mesh().property(quadrics_, _ci.v1);
122
123 double err = q(_ci.p1);
124
125 //min_ = std::min(err, min_);
126 //max_ = std::max(err, max_);
127
128 //double err = q( p );
129
130 return float( (err < max_err_) ? err : float( Base::ILLEGAL_COLLAPSE ) );
131 }
132
133
135 virtual void postprocess_collapse(const CollapseInfo& _ci)
136 {
137 Base::mesh().property(quadrics_, _ci.v1) +=
138 Base::mesh().property(quadrics_, _ci.v0);
139 }
140
142 void set_error_tolerance_factor(double _factor);
143
144
145
146 public: // specific methods
147
154 void set_max_err(double _err, bool _binary=true)
155 {
156 max_err_ = _err;
157 Base::set_binary(_binary);
158 }
159
162 void unset_max_err(void)
163 {
164 max_err_ = DBL_MAX;
165 Base::set_binary(false);
166 }
167
169 double max_err() const { return max_err_; }
170
171
172 private:
173
174 // maximum quadric error
175 double max_err_;
176
177 // this vertex property stores a quadric for each vertex
178 VPropHandleT< Geometry::QuadricT<double> > quadrics_;
179 };
180
181 //=============================================================================
182 } // END_NS_DECIMATER
183 } // END_NS_OPENMESH
184 //=============================================================================
185 #if defined(OM_INCLUDE_TEMPLATES) && !defined(OPENMESH_DECIMATER_MODQUADRIC_CC)
186 #define OSG_MODQUADRIC_TEMPLATES
187 #include "ModQuadricT.cc"
188 #endif
189 //=============================================================================
190 #endif // OSG_MODQUADRIC_HH defined
191 //=============================================================================
192
ModBaseT.hh
Base class for all decimation modules.
OpenMesh::Decimater::ModQuadricT::initialize
virtual void initialize(void)
Initalize the module and prepare the mesh for decimation.
Definition: ModQuadricT.cc:71
QuadricT.hh
OpenMesh::Decimater::CollapseInfoT
Stores information about a halfedge collapse.
Definition: CollapseInfoT.hh:73
OpenMesh::Decimater::ModQuadricT::~ModQuadricT
virtual ~ModQuadricT()
Destructor.
Definition: ModQuadricT.hh:98
OpenMesh::VPropHandleT
Handle representing a vertex property.
Definition: Property.hh:476
OpenMesh::Decimater::ModBaseT
Base class for all decimation modules.
Definition: ModBaseT.hh:190
OpenMesh::Decimater::CollapseInfoT::v1
Mesh::VertexHandle v1
Remaining vertex.
Definition: CollapseInfoT.hh:91
OpenMesh::Decimater::ModQuadricT::set_error_tolerance_factor
void set_error_tolerance_factor(double _factor)
set the percentage of maximum quadric error
Definition: ModQuadricT.cc:134
OpenMesh::Decimater::ModQuadricT::collapse_priority
virtual float collapse_priority(const CollapseInfo &_ci)
Compute collapse priority based on error quadrics.
Definition: ModQuadricT.hh:114
OpenMesh::Decimater::ModQuadricT::set_max_err
void set_max_err(double _err, bool _binary=true)
Set maximum quadric error constraint and enable binary mode.
Definition: ModQuadricT.hh:154
ModQuadricT.cc
Bodies of template member function.
OpenMesh::Geometry::QuadricT
/class QuadricT Geometry/QuadricT.hh
Definition: QuadricT.hh:78
OpenMesh::Decimater::ModQuadricT::unset_max_err
void unset_max_err(void)
Unset maximum quadric error constraint and restore non-binary mode.
Definition: ModQuadricT.hh:162
OpenMesh::Decimater::CollapseInfoT::v0
Mesh::VertexHandle v0
Vertex to be removed.
Definition: CollapseInfoT.hh:90
OpenMesh::Decimater::ModQuadricT::postprocess_collapse
virtual void postprocess_collapse(const CollapseInfo &_ci)
Post-process halfedge collapse (accumulate quadrics)
Definition: ModQuadricT.hh:135
OpenMesh::Decimater::ModQuadricT
Mesh decimation module computing collapse priority based on error quadrics.
Definition: ModQuadricT.hh:76
OpenMesh::Decimater::ModQuadricT::max_err
double max_err() const
Return value of max. allowed error.
Definition: ModQuadricT.hh:169
OpenMesh::Decimater::CollapseInfoT::p1
Mesh::Point p1
Positions of remaining vertex.
Definition: CollapseInfoT.hh:93
OpenMesh::Decimater::ModQuadricT::ModQuadricT
ModQuadricT(MeshT &_mesh)
Constructor.
Definition: ModQuadricT.hh:89
DECIMATING_MODULE
#define DECIMATING_MODULE(Classname, MeshT, Name)
Convenience macro, to be used in derived modules The macro defines the types.
Definition: ModBaseT.hh:147