CompositeLoopT.hh
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//=============================================================================
//
// CLASS LoopT
//
//=============================================================================
#ifndef OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITELOOPT_HH
#define OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITELOOPT_HH
//== INCLUDES =================================================================
#include "Composite/CompositeT.hh"
#include "Composite/CompositeTraits.hh"
//== NAMESPACE ================================================================
namespace OpenMesh { // BEGIN_NS_OPENMESH
namespace Subdivider { // BEGIN_NS_DECIMATER
namespace Uniform { // BEGIN_NS_DECIMATER
//== CLASS DEFINITION =========================================================
template <class MeshType, class RealType = double>
class CompositeLoopT : public CompositeT<MeshType, RealType>
{
public:
typedef CompositeT<MeshType, RealType> Inherited;
public:
CompositeLoopT() : Inherited() {};
CompositeLoopT(MeshType& _mesh) : Inherited(_mesh) {};
~CompositeLoopT() {}
public:
const char *name() const { return "Uniform Composite Loop"; }
protected: // inherited interface
void apply_rules(void)
{
Inherited::Tvv4();
Inherited::VdE();
Inherited::EVc(coeffs_);
Inherited::VdE();
Inherited::EVc(coeffs_);
}
protected:
typedef typename Inherited::Coeff Coeff;
struct EVCoeff : public Coeff
{
EVCoeff() : Coeff() { init(50); }
void init(size_t _max_valence)
{
weights_.resize(_max_valence);
std::generate(weights_.begin(),
weights_.end(), compute_weight() );
}
double operator()(size_t _valence) { return weights_[_valence]; }
struct compute_weight
{
compute_weight() : val_(0) { }
double operator()(void) // Loop weights for non-boundary vertices
{
// 1 3 2 * pi
// - * ( --- + cos ( ------- ) )� - 1.0
// 2 2 valence
double f1 = 1.5 + cos(2.0*M_PI/val_++);
return 0.5 * f1 * f1 - 1.0;
}
size_t val_;
};
std::vector<double> weights_;
} coeffs_;
};
//=============================================================================
} // END_NS_UNIFORM
} // END_NS_SUBDIVIDER
} // END_NS_OPENMESH
//=============================================================================
#endif // OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITELOOPT_HH defined
//=============================================================================
OpenMesh::Subdivider::Uniform::CompositeT::Coeff
Abstract base class for coefficient functions.
Definition: CompositeT.hh:162
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::name
const char * name() const
Return name of subdivision algorithm.
Definition: CompositeLoopT.hh:95
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64
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
Uniform composite Loop subdivision algorithm.
Definition: CompositeLoopT.hh:81
OpenMesh::Subdivider::Uniform::CompositeLoopT::EVCoeff::compute_weight
Definition: CompositeLoopT.hh:130