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First checkin for OpenMesh 2.0

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git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@2 fdac6126-5c0c-442c-9429-916003d36597
This commit is contained in:
Jan Möbius
2009-02-06 13:37:46 +00:00
parent c3321ebdd9
commit 97f515985d
417 changed files with 76182 additions and 0 deletions
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183
Tools/Smoother/JacobiLaplaceSmootherT.cc Normal file
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//=============================================================================
//
// OpenMesh
// Copyright (C) 2003 by Computer Graphics Group, RWTH Aachen
// www.openmesh.org
//
//-----------------------------------------------------------------------------
//
// License
//
// This library is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation, version 2.1.
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
//-----------------------------------------------------------------------------
//
// $Revision: 1802 $
// $Date: 2008-05-19 11:55:07 +0200 (Mo, 19. Mai 2008) $
//
//=============================================================================
/** \file JacobiLaplaceSmootherT.cc
*/
//=============================================================================
//
// CLASS JacobiLaplaceSmootherT - IMPLEMENTATION
//
//=============================================================================
#define OPENMESH_JACOBI_LAPLACE_SMOOTHERT_C
//== INCLUDES =================================================================
#include <OpenMesh/Tools/Smoother/JacobiLaplaceSmootherT.hh>
//== NAMESPACES ===============================================================
namespace OpenMesh {
namespace Smoother {
//== IMPLEMENTATION ==========================================================
template <class Mesh>
void
JacobiLaplaceSmootherT<Mesh>::
smooth(unsigned int _n)
{
if (Base::continuity() > Base::C0)
{
Base::mesh_.add_property(umbrellas_);
if (Base::continuity() > Base::C1)
Base::mesh_.add_property(squared_umbrellas_);
}
LaplaceSmootherT<Mesh>::smooth(_n);
if (Base::continuity() > Base::C0)
{
Base::mesh_.remove_property(umbrellas_);
if (Base::continuity() > Base::C1)
Base::mesh_.remove_property(squared_umbrellas_);
}
}
//-----------------------------------------------------------------------------
template <class Mesh>
void
JacobiLaplaceSmootherT<Mesh>::
compute_new_positions_C0()
{
typename Mesh::VertexIter v_it, v_end(Base::mesh_.vertices_end());
typename Mesh::CVVIter vv_it;
typename Mesh::Normal u, p, zero(0,0,0);
typename Mesh::Scalar w;
for (v_it=Base::mesh_.vertices_begin(); v_it!=v_end; ++v_it)
{
if (is_active(v_it))
{
// compute umbrella
u = zero;
for (vv_it=Base::mesh_.cvv_iter(v_it); vv_it; ++vv_it)
{
w = weight(Base::mesh_.edge_handle(vv_it.current_halfedge_handle()));
u += vector_cast<typename Mesh::Normal>(Base::mesh_.point(vv_it)) * w;
}
u *= weight(v_it);
u -= vector_cast<typename Mesh::Normal>(Base::mesh_.point(v_it));
// damping
u *= 0.5;
// store new position
p = vector_cast<typename Mesh::Normal>(Base::mesh_.point(v_it));
p += u;
set_new_position(v_it, p);
}
}
}
//-----------------------------------------------------------------------------
template <class Mesh>
void
JacobiLaplaceSmootherT<Mesh>::
compute_new_positions_C1()
{
typename Mesh::VertexIter v_it, v_end(Base::mesh_.vertices_end());
typename Mesh::CVVIter vv_it;
typename Mesh::Normal u, uu, p, zero(0,0,0);
typename Mesh::Scalar w, diag;
// 1st pass: compute umbrellas
for (v_it=Base::mesh_.vertices_begin(); v_it!=v_end; ++v_it)
{
u = zero;
for (vv_it=Base::mesh_.cvv_iter(v_it); vv_it; ++vv_it)
{
w = weight(Base::mesh_.edge_handle(vv_it.current_halfedge_handle()));
u -= vector_cast<typename Mesh::Normal>(Base::mesh_.point(vv_it))*w;
}
u *= weight(v_it);
u += vector_cast<typename Mesh::Normal>(Base::mesh_.point(v_it));
Base::mesh_.property(umbrellas_, v_it) = u;
}
// 2nd pass: compute updates
for (v_it=Base::mesh_.vertices_begin(); v_it!=v_end; ++v_it)
{
if (is_active(v_it))
{
uu = zero;
diag = 0.0;
for (vv_it=Base::mesh_.cvv_iter(v_it); vv_it; ++vv_it)
{
w = weight(Base::mesh_.edge_handle(vv_it.current_halfedge_handle()));
uu -= Base::mesh_.property(umbrellas_, vv_it);
diag += (w * weight(vv_it) + 1.0) * w;
}
uu *= weight(v_it);
diag *= weight(v_it);
uu += Base::mesh_.property(umbrellas_, v_it);
if (diag) uu *= 1.0/diag;
// damping
uu *= 0.25;
// store new position
p = vector_cast<typename Mesh::Normal>(Base::mesh_.point(v_it));
p -= uu;
set_new_position(v_it, p);
}
}
}
//=============================================================================
} // namespace Smoother
} // namespace OpenMesh
//=============================================================================