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#include <algorithm>
#include <OpenMesh/Core/Utils/Property.hh>
#ifndef DOXY_IGNORE_THIS
template <class Mesh> class SmootherT
{
public:
typedef typename Mesh::Point cog_t;
typedef OpenMesh::VPropHandleT< cog_t > Property_cog;
public:
// construct with a given mesh
explicit SmootherT(Mesh& _mesh)
: mesh_(_mesh)
{
mesh_.add_property( cog_ );
}
~SmootherT()
{
mesh_.remove_property( cog_ );
}
// smooth mesh _iterations times
void smooth(unsigned int _iterations)
{
for (unsigned int i=0; i < _iterations; ++i)
{
std::for_each(mesh_.vertices_begin(),
mesh_.vertices_end(),
ComputeCOG(mesh_, cog_));
std::for_each(mesh_.vertices_begin(),
mesh_.vertices_end(),
SetCOG(mesh_, cog_));
}
}
private:
//--- private classes ---
class ComputeCOG
{
public:
ComputeCOG(Mesh& _mesh, Property_cog& _cog)
: mesh_(_mesh), cog_(_cog)
{}
void operator()(const typename Mesh::VertexHandle& _vh)
{
typename Mesh::VertexVertexIter vv_it;
typename Mesh::Scalar valence(0.0);
mesh_.property(cog_, _vh) = typename Mesh::Point(0.0, 0.0, 0.0);
for (vv_it=mesh_.vv_iter(_vh); vv_it.is_valid(); ++vv_it)
{
mesh_.property(cog_, _vh) += mesh_.point( *vv_it );
++valence;
}
mesh_.property(cog_, _vh ) /= valence;
}
private:
Mesh& mesh_;
Property_cog& cog_;
};
class SetCOG
{
public:
SetCOG(Mesh& _mesh, Property_cog& _cog)
: mesh_(_mesh), cog_(_cog)
{}
void operator()(const typename Mesh::VertexHandle& _vh)
{
if (!mesh_.is_boundary(_vh))
mesh_.set_point( _vh, mesh_.property(cog_, _vh) );
}
private:
Mesh& mesh_;
Property_cog& cog_;
};
//--- private elements ---
Mesh& mesh_;
Property_cog cog_;
};
#endif
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