cd3587d21e
- mod normalFlipping & normalDeviation computes normals, if mesh hasn't normals - add 2 decimater unittest (decimating with normalFlipping and initialize all modules) git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@1049 fdac6126-5c0c-442c-9429-916003d36597
304 lines
10 KiB
C++
304 lines
10 KiB
C++
/*===========================================================================*\
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* *
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* OpenMesh *
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* Copyright (C) 2001-2014 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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* This file is part of OpenMesh. *
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* *
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* OpenMesh is free software: you can redistribute it and/or modify *
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* it under the terms of the GNU Lesser General Public License as *
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* published by the Free Software Foundation, either version 3 of *
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* the License, or (at your option) any later version with the *
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* following exceptions: *
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* *
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* If other files instantiate templates or use macros *
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* or inline functions from this file, or you compile this file and *
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* link it with other files to produce an executable, this file does *
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* not by itself cause the resulting executable to be covered by the *
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* GNU Lesser General Public License. This exception does not however *
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* invalidate any other reasons why the executable file might be *
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* covered by the GNU Lesser General Public License. *
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* *
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* OpenMesh is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU LesserGeneral Public *
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* License along with OpenMesh. If not, *
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* see <http://www.gnu.org/licenses/>. *
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* *
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\*===========================================================================*/
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/*===========================================================================*\
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* *
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* $Revision$ *
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* $Date$ *
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* *
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\*===========================================================================*/
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/** \file DecimaterT.cc
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*/
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//=============================================================================
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//
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// CLASS DecimaterT - IMPLEMENTATION
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//
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//=============================================================================
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#define OPENMESH_BASE_DECIMATER_DECIMATERT_CC
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//== INCLUDES =================================================================
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#include <vector>
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#if defined(OM_CC_MIPS)
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# include <float.h>
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#else
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# include <cfloat>
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#endif
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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 Mesh>
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BaseDecimaterT<Mesh>::BaseDecimaterT(Mesh& _mesh) :
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mesh_(_mesh), cmodule_(NULL), initialized_(false) {
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// default properties
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mesh_.request_vertex_status();
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mesh_.request_edge_status();
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mesh_.request_face_status();
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}
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//-----------------------------------------------------------------------------
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template<class Mesh>
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BaseDecimaterT<Mesh>::~BaseDecimaterT() {
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// default properties
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mesh_.release_vertex_status();
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mesh_.release_edge_status();
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mesh_.release_face_status();
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// dispose of modules
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{
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set_uninitialized();
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typename ModuleList::iterator m_it, m_end = all_modules_.end();
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for (m_it = all_modules_.begin(); m_it != m_end; ++m_it)
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delete *m_it;
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all_modules_.clear();
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}
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}
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//-----------------------------------------------------------------------------
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template<class Mesh>
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bool BaseDecimaterT<Mesh>::is_collapse_legal(const CollapseInfo& _ci) {
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// std::clog << "McDecimaterT<>::is_collapse_legal()\n";
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// locked ?
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if (mesh_.status(_ci.v0).locked())
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return false;
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// this test checks:
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// is v0v1 deleted?
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// is v0 deleted?
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// is v1 deleted?
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// are both vlv0 and v1vl boundary edges?
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// are both v0vr and vrv1 boundary edges?
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// are vl and vr equal or both invalid?
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// one ring intersection test
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// edge between two boundary vertices should be a boundary edge
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if (!mesh_.is_collapse_ok(_ci.v0v1))
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return false;
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if (_ci.vl.is_valid() && _ci.vr.is_valid()
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&& mesh_.find_halfedge(_ci.vl, _ci.vr).is_valid()
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&& mesh_.valence(_ci.vl) == 3 && mesh_.valence(_ci.vr) == 3) {
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return false;
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}
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//--- feature test ---
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if (mesh_.status(_ci.v0).feature()
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&& !mesh_.status(mesh_.edge_handle(_ci.v0v1)).feature())
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return false;
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//--- test boundary cases ---
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if (mesh_.is_boundary(_ci.v0)) {
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// don't collapse a boundary vertex to an inner one
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if (!mesh_.is_boundary(_ci.v1))
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return false;
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// only one one ring intersection
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if (_ci.vl.is_valid() && _ci.vr.is_valid())
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return false;
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}
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// there have to be at least 2 incident faces at v0
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if (mesh_.cw_rotated_halfedge_handle(
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mesh_.cw_rotated_halfedge_handle(_ci.v0v1)) == _ci.v0v1)
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return false;
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// collapse passed all tests -> ok
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return true;
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}
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//-----------------------------------------------------------------------------
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template<class Mesh>
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float BaseDecimaterT<Mesh>::collapse_priority(const CollapseInfo& _ci) {
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typename ModuleList::iterator m_it, m_end = bmodules_.end();
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for (m_it = bmodules_.begin(); m_it != m_end; ++m_it) {
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if ((*m_it)->collapse_priority(_ci) < 0.0)
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return ModBaseT< Mesh >::ILLEGAL_COLLAPSE;
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}
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return cmodule_->collapse_priority(_ci);
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}
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//-----------------------------------------------------------------------------
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template<class Mesh>
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void BaseDecimaterT<Mesh>::postprocess_collapse(CollapseInfo& _ci) {
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typename ModuleList::iterator m_it, m_end = bmodules_.end();
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for (m_it = bmodules_.begin(); m_it != m_end; ++m_it)
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(*m_it)->postprocess_collapse(_ci);
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cmodule_->postprocess_collapse(_ci);
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}
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//-----------------------------------------------------------------------------
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template<class Mesh>
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void BaseDecimaterT<Mesh>::preprocess_collapse(CollapseInfo& _ci) {
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typename ModuleList::iterator m_it, m_end = bmodules_.end();
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for (m_it = bmodules_.begin(); m_it != m_end; ++m_it)
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(*m_it)->preprocess_collapse(_ci);
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cmodule_->preprocess_collapse(_ci);
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}
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//-----------------------------------------------------------------------------
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template<class Mesh>
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void BaseDecimaterT<Mesh>::set_error_tolerance_factor(double _factor) {
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if (_factor >= 0.0 && _factor <= 1.0) {
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typename ModuleList::iterator m_it, m_end = bmodules_.end();
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for (m_it = bmodules_.begin(); m_it != m_end; ++m_it)
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(*m_it)->set_error_tolerance_factor(_factor);
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cmodule_->set_error_tolerance_factor(_factor);
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}
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}
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//-----------------------------------------------------------------------------
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template<class Mesh>
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void BaseDecimaterT<Mesh>::info(std::ostream& _os) {
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if (initialized_) {
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_os << "initialized : yes" << std::endl;
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_os << "binary modules: " << bmodules_.size() << std::endl;
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for (ModuleListIterator m_it = bmodules_.begin(); m_it != bmodules_.end();
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++m_it) {
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_os << " " << (*m_it)->name() << std::endl;
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}
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_os << "priority module: " << cmodule_->name().c_str() << std::endl;
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} else {
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_os << "initialized : no" << std::endl;
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_os << "available modules: " << all_modules_.size() << std::endl;
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for (ModuleListIterator m_it = all_modules_.begin();
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m_it != all_modules_.end(); ++m_it) {
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_os << " " << (*m_it)->name() << " : ";
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if ((*m_it)->is_binary()) {
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_os << "binary";
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if ((*m_it)->name() == "Quadric") {
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_os << " and priority (special treatment)";
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}
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} else {
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_os << "priority";
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}
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_os << std::endl;
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}
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}
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}
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//-----------------------------------------------------------------------------
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template<class Mesh>
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bool BaseDecimaterT<Mesh>::initialize() {
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if (initialized_) {
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return true;
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}
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// FIXME: quadric module shouldn't be treated specially.
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// Q: Why?
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// A: It isn't generic and breaks encapsulation. Also, using string
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// name comparison is not reliable, since you can't guarantee that
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// no one else will name their custom module "Quadric".
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// Q: What should be done instead?
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// A: ModBaseT API should support modules that can be both binary
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// and priority, or BETTER YET, let the DecimaterT API specify the
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// priority module explicitly.
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// find the priority module: either the only non-binary module in the list, or "Quadric"
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Module *quadric = NULL;
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Module *pmodule = NULL;
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for (ModuleListIterator m_it = all_modules_.begin(), m_end =
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all_modules_.end(); m_it != m_end; ++m_it) {
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if ((*m_it)->name() == "Quadric")
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quadric = *m_it;
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if (!(*m_it)->is_binary()) {
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if (pmodule) {
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// only one priority module allowed!
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set_uninitialized();
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return false;
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}
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pmodule = *m_it;
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}
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}
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// Quadric is used as default priority module (even if it is set to be binary)
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if (!pmodule && quadric) {
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pmodule = quadric;
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}
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if (!pmodule) {
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// At least one priority module required
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set_uninitialized();
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return false;
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}
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// set pmodule as the current priority module
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cmodule_ = pmodule;
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for (ModuleListIterator m_it = all_modules_.begin(), m_end =
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all_modules_.end(); m_it != m_end; ++m_it) {
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// every module gets initialized
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(*m_it)->initialize();
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if (*m_it != pmodule) {
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// all other modules are binary, and go into bmodules_ list
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bmodules_.push_back(*m_it);
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}
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}
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return initialized_ = 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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