187 lines
7.0 KiB
C++
187 lines
7.0 KiB
C++
/* ========================================================================= *
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* *
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* OpenMesh *
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* Copyright (c) 2001-2015, RWTH-Aachen University *
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* Department of Computer Graphics and Multimedia *
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* All rights reserved. *
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* www.openmesh.org *
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* *
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*---------------------------------------------------------------------------*
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* This file is part of OpenMesh. *
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*---------------------------------------------------------------------------*
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* *
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* Redistribution and use in source and binary forms, with or without *
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* modification, are permitted provided that the following conditions *
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* are met: *
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* *
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* 1. Redistributions of source code must retain the above copyright notice, *
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* this list of conditions and the following disclaimer. *
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* *
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* 2. Redistributions in binary form must reproduce the above copyright *
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* notice, this list of conditions and the following disclaimer in the *
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* documentation and/or other materials provided with the distribution. *
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* *
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* 3. Neither the name of the copyright holder nor the names of its *
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* contributors may be used to endorse or promote products derived from *
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* this software without specific prior written permission. *
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* *
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, *
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, *
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR *
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING *
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
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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 MeshT>
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bool
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ModProgMeshT<MeshT>::
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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;
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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, static_cast<unsigned int>(n_base_vertices), swap );//store in 32-bit
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IO::store( out, static_cast<unsigned int>(n_base_faces) , swap );
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IO::store( out, static_cast<unsigned int>(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);
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IO::store( out, static_cast<unsigned int>(Base::mesh().property( idx_, *fv_it )) );
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IO::store( out, static_cast<unsigned int>(Base::mesh().property( idx_, *(++fv_it ))) );
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IO::store( out, static_cast<unsigned int>(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, static_cast<unsigned int>(Base::mesh().property(idx_, r_it->v1)));
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IO::store( out,
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r_it->vl.is_valid() ? static_cast<unsigned int>(Base::mesh().property(idx_, r_it->vl)) : -1);
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IO::store( out,
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r_it->vr.is_valid() ? static_cast<unsigned int>(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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