First checkin for OpenMesh 2.0
git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@2 fdac6126-5c0c-442c-9429-916003d36597
This commit is contained in:
Jan Möbius
173
Tools/Decimater/ModProgMeshT.cc
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173
Tools/Decimater/ModProgMeshT.cc
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//=============================================================================
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//
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// OpenMesh
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// Copyright (C) 2003 by Computer Graphics Group, RWTH Aachen
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// www.openmesh.org
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//
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//-----------------------------------------------------------------------------
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//
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// License
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//
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// This library is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation, version 2.1.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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//-----------------------------------------------------------------------------
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//
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// $Revision: 1802 $
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// $Date: 2008-05-19 11:55:07 +0200 (Mo, 19. Mai 2008) $
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//
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//=============================================================================
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/** \file ModProgMeshT.cc
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*/
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//=============================================================================
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//
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// CLASS ModProgMeshT - IMPLEMENTATION
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//
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//=============================================================================
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#define OPENMESH_DECIMATER_MODPROGMESH_CC
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//== INCLUDES =================================================================
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#include <vector>
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#include <fstream>
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// --------------------
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#include <OpenMesh/Core/Utils/vector_cast.hh>
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#include <OpenMesh/Core/IO/BinaryHelper.hh>
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#include <OpenMesh/Core/Utils/Endian.hh>
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// --------------------
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#include <OpenMesh/Tools/Decimater/ModProgMeshT.hh>
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//== NAMESPACE ===============================================================
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namespace OpenMesh {
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namespace Decimater {
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//== IMPLEMENTATION ==========================================================
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template <class DecimaterType>
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bool
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ModProgMeshT<DecimaterType>::
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write( const std::string& _ofname )
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{
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// sort vertices
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size_t i=0, N=Base::mesh().n_vertices(), n_base_vertices(0), n_base_faces(0);
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std::vector<typename Mesh::VertexHandle> vhandles(N);
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// base vertices
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typename Mesh::VertexIter
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v_it=Base::mesh().vertices_begin(),
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v_end=Base::mesh().vertices_end();
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for (; v_it != v_end; ++v_it)
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if (!Base::mesh().status(v_it).deleted())
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{
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vhandles[i] = v_it.handle();
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Base::mesh().property( idx_, v_it ) = i;
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++i;
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}
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n_base_vertices = i;
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// deleted vertices
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typename InfoList::reverse_iterator
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r_it=pmi_.rbegin(), r_end=pmi_.rend();
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for (; r_it!=r_end; ++r_it)
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{
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vhandles[i] = r_it->v0;
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Base::mesh().property( idx_, r_it->v0) = i;
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++i;
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}
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// base faces
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typename Mesh::ConstFaceIter f_it = Base::mesh().faces_begin(),
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f_end = Base::mesh().faces_end();
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for (; f_it != f_end; ++f_it)
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if (!Base::mesh().status(f_it).deleted())
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++n_base_faces;
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// ---------------------------------------- write progressive mesh
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std::ofstream out( _ofname.c_str(), std::ios::binary );
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if (!out)
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return false;
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// always use little endian byte ordering
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bool swap = Endian::local() != Endian::LSB;
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// write header
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out << "ProgMesh";
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IO::store( out, n_base_vertices, swap );
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IO::store( out, n_base_faces , swap );
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IO::store( out, pmi_.size() , swap );
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Vec3f p;
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// write base vertices
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for (i=0; i<n_base_vertices; ++i)
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{
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assert (!Base::mesh().status(vhandles[i]).deleted());
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p = vector_cast< Vec3f >( Base::mesh().point(vhandles[i]) );
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IO::store( out, p, swap );
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}
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// write base faces
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for (f_it=Base::mesh().faces_begin(); f_it != f_end; ++f_it)
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{
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if (!Base::mesh().status(f_it).deleted())
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{
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typename Mesh::ConstFaceVertexIter fv_it(Base::mesh(), f_it.handle());
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IO::store( out, Base::mesh().property( idx_, fv_it ) );
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IO::store( out, Base::mesh().property( idx_, ++fv_it ) );
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IO::store( out, Base::mesh().property( idx_, ++fv_it ) );
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}
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}
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// write detail info
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for (r_it=pmi_.rbegin(); r_it!=r_end; ++r_it)
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{
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// store v0.pos, v1.idx, vl.idx, vr.idx
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IO::store( out, vector_cast<Vec3f>(Base::mesh().point(r_it->v0)));
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IO::store( out, Base::mesh().property( idx_, r_it->v1 ) );
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IO::store( out,
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r_it->vl.is_valid() ? Base::mesh().property(idx_, r_it->vl) : -1 );
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IO::store( out,
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r_it->vr.is_valid() ? Base::mesh().property(idx_, r_it->vr) : -1 );
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}
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return true;
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}
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//=============================================================================
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} // END_NS_DECIMATER
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} // END_NS_OPENMESH
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//=============================================================================
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