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New Decimater mods:

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EdgeLength
  Hausdorff distance
  Normal Deviation



git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@450 fdac6126-5c0c-442c-9429-916003d36597
This commit is contained in:
Jan Möbius
2011-11-07 07:03:56 +00:00
parent 5763bcbbc3
commit edce990e21
5 changed files with 853 additions and 0 deletions
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99
src/OpenMesh/Tools/Decimater/ModEdgeLengthT.cc Normal file
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/*===========================================================================*\
* *
* OpenMesh *
* Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen *
* www.openmesh.org *
* *
*---------------------------------------------------------------------------*
* This file is part of OpenMesh. *
* *
* OpenMesh 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, either version 3 of *
* the License, or (at your option) any later version with the *
* following exceptions: *
* *
* If other files instantiate templates or use macros *
* or inline functions from this file, or you compile this file and *
* link it with other files to produce an executable, this file does *
* not by itself cause the resulting executable to be covered by the *
* GNU Lesser General Public License. This exception does not however *
* invalidate any other reasons why the executable file might be *
* covered by the GNU Lesser General Public License. *
* *
* OpenMesh 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 LesserGeneral Public *
* License along with OpenMesh. If not, *
* see <http://www.gnu.org/licenses/>. *
* *
\*===========================================================================*/
/*===========================================================================*\
* *
* $Revision: 448 $ *
* $Date: 2011-11-04 13:59:37 +0100 (Fri, 04 Nov 2011) $ *
* *
\*===========================================================================*/
/** \file ModEdgeLengthT.cc
*/
//=============================================================================
//
// CLASS ModEdgeLengthT - IMPLEMENTATION
//
//=============================================================================
#define MB_MODEDGELENGTHT_C
//== INCLUDES =================================================================
#include "ModEdgeLengthT.hh"
#include <ACG/Geometry/Algorithms.hh>
//== NAMESPACES ===============================================================
namespace OpenMesh {
namespace Decimater {
//== IMPLEMENTATION ==========================================================
template <class DecimaterT>
ModEdgeLengthT<DecimaterT>::
ModEdgeLengthT(DecimaterT &_dec, float _edge_length, bool _is_binary)
: Base(_dec, _is_binary),
mesh_(Base::mesh())
{
set_edge_length(_edge_length);
}
//-----------------------------------------------------------------------------
template <class DecimaterT>
float
ModEdgeLengthT<DecimaterT>::
collapse_priority(const CollapseInfo& _ci)
{
typename Mesh::Scalar sqr_length = (_ci.p0 - _ci.p1).sqrnorm();
return ((sqr_length <= sqr_edge_length_) ?
sqr_length :
float( Base::ILLEGAL_COLLAPSE ));
}
//=============================================================================
}
}
//=============================================================================

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src/OpenMesh/Tools/Decimater/ModEdgeLengthT.hh Normal file
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/*===========================================================================*\
* *
* OpenMesh *
* Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen *
* www.openmesh.org *
* *
*---------------------------------------------------------------------------*
* This file is part of OpenMesh. *
* *
* OpenMesh 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, either version 3 of *
* the License, or (at your option) any later version with the *
* following exceptions: *
* *
* If other files instantiate templates or use macros *
* or inline functions from this file, or you compile this file and *
* link it with other files to produce an executable, this file does *
* not by itself cause the resulting executable to be covered by the *
* GNU Lesser General Public License. This exception does not however *
* invalidate any other reasons why the executable file might be *
* covered by the GNU Lesser General Public License. *
* *
* OpenMesh 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 LesserGeneral Public *
* License along with OpenMesh. If not, *
* see <http://www.gnu.org/licenses/>. *
* *
\*===========================================================================*/
/*===========================================================================*\
* *
* $Revision: 448 $ *
* $Date: 2011-11-04 13:59:37 +0100 (Fri, 04 Nov 2011) $ *
* *
\*===========================================================================*/
/** \file ModEdgeLengthT.hh
*/
//=============================================================================
//
// CLASS ModEdgeLengthT
//
//=============================================================================
#ifndef MB_MODEDGELENGTHT_HH
#define MB_MODEDGELENGTHT_HH
//== INCLUDES =================================================================
#include <OpenMesh/Tools/Decimater/ModBaseT.hh>
#include <float.h>
//== NAMESPACES ===============================================================
namespace OpenMesh {
namespace Decimater {
//== CLASS DEFINITION =========================================================
template <class DecimaterT>
class ModEdgeLengthT : public ModBaseT<DecimaterT>
{
public:
DECIMATING_MODULE( ModEdgeLengthT, DecimaterT, EdgeLength );
/// Constructor
ModEdgeLengthT(DecimaterT& _dec,
float _edge_length = FLT_MAX,
bool _is_binary = true);
/// get edge_length
float edge_length() const { return edge_length_; }
/// set edge_length
void set_edge_length(float _f)
{ edge_length_ = _f; sqr_edge_length_ = _f*_f; }
/** Compute priority:
Binary mode: Don't collapse edges longer then edge_length_
Cont. mode: Collapse smallest edge first, but
don't collapse edges longer as edge_length_
*/
float collapse_priority(const CollapseInfo& _ci);
private:
Mesh& mesh_;
typename Mesh::Scalar edge_length_, sqr_edge_length_;
};
//=============================================================================
} // END_NS_DECIMATER
} // END_NS_OPENMESH
//=============================================================================
#if defined(INCLUDE_TEMPLATES) && !defined(MB_MODEDGELENGTHT_C)
#define MB_MODEDGELENGTHT_TEMPLATES
#include "ModEdgeLengthT.cc"
#endif
//=============================================================================
#endif // MB_MODEDGELENGTHT_HH defined
//=============================================================================

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src/OpenMesh/Tools/Decimater/ModHausdorffT.cc Normal file
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/*===========================================================================*\
* *
* OpenMesh *
* Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen *
* www.openmesh.org *
* *
*---------------------------------------------------------------------------*
* This file is part of OpenMesh. *
* *
* OpenMesh 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, either version 3 of *
* the License, or (at your option) any later version with the *
* following exceptions: *
* *
* If other files instantiate templates or use macros *
* or inline functions from this file, or you compile this file and *
* link it with other files to produce an executable, this file does *
* not by itself cause the resulting executable to be covered by the *
* GNU Lesser General Public License. This exception does not however *
* invalidate any other reasons why the executable file might be *
* covered by the GNU Lesser General Public License. *
* *
* OpenMesh 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 LesserGeneral Public *
* License along with OpenMesh. If not, *
* see <http://www.gnu.org/licenses/>. *
* *
\*===========================================================================*/
/*===========================================================================*\
* *
* $Revision: 448 $ *
* $Date: 2011-11-04 13:59:37 +0100 (Fri, 04 Nov 2011) $ *
* *
\*===========================================================================*/
/** \file ModHausdorffT.cc
*/
//=============================================================================
//
// CLASS ModHausdorffT - IMPLEMENTATION
//
//=============================================================================
#define MB_MODHAUSDORFFT_C
//== INCLUDES =================================================================
#include "ModHausdorffT.hh"
#include <ACG/Geometry/Algorithms.hh>
//== NAMESPACES ===============================================================
namespace OpenMesh {
namespace Decimater {
//== IMPLEMENTATION ==========================================================
template <class DecimaterT>
void
ModHausdorffT<DecimaterT>::
initialize()
{
typename Mesh::FIter f_it(mesh_.faces_begin()), f_end(mesh_.faces_end());
for (; f_it!=f_end; ++f_it)
mesh_.property(points_, f_it).clear();
}
//-----------------------------------------------------------------------------
template <class DecimaterT>
float
ModHausdorffT<DecimaterT>::
collapse_priority(const CollapseInfo& _ci)
{
static Points points; points.clear();
std::vector<FaceHandle> faces; faces.reserve(20);
typename Mesh::VertexFaceIter vf_it;
typename Mesh::FaceHandle fh;
typename Mesh::Scalar sqr_tolerace = tolerance_*tolerance_;
typename Mesh::Point dummy;
typename Mesh::CFVIter fv_it;
bool ok;
// collect all points to be tested
// collect all faces to be tested against
for (vf_it=mesh_.vf_iter(_ci.v0); vf_it; ++vf_it) {
fh = vf_it.handle();
if (fh != _ci.fl && fh != _ci.fr)
faces.push_back(fh);
Points& pts = mesh_.property(points_, fh);
std::copy(pts.begin(), pts.end(), std::back_inserter(points));
}
// add point to be removed
points.push_back(_ci.p0);
// setup iterators
typename std::vector<FaceHandle>::iterator fh_it, fh_end(faces.end());
typename Points::const_iterator p_it, p_end(points.end());
// simulate collapse
mesh_.set_point(_ci.v0, _ci.p1);
// for each point: try to find a face such that error is < tolerance
ok = true;
for (p_it=points.begin(); ok && p_it!=p_end; ++p_it) {
ok = false;
for (fh_it=faces.begin(); !ok && fh_it!=fh_end; ++fh_it) {
const Point& p0 = mesh_.point(fv_it=mesh_.cfv_iter(*fh_it));
const Point& p1 = mesh_.point(++fv_it);
const Point& p2 = mesh_.point(++fv_it);
if ( ACG::Geometry::distPointTriangleSquared(*p_it, p0, p1, p2, dummy) <= sqr_tolerace)
ok = true;
}
}
// undo simulation changes
mesh_.set_point(_ci.v0, _ci.p0);
return ( ok ? Base::LEGAL_COLLAPSE : Base::ILLEGAL_COLLAPSE );
}
//-----------------------------------------------------------------------------
template <class DecimaterT>
void
ModHausdorffT<DecimaterT>::
postprocess_collapse(const CollapseInfo& _ci)
{
static Points points;
typename Mesh::VertexFaceIter vf_it;
FaceHandle fh;
std::vector<FaceHandle> faces;
// collect points & neighboring triangles
points.clear(); // it's static !
faces.reserve(20);
// collect active faces and their points
for (vf_it=mesh_.vf_iter(_ci.v1); vf_it; ++vf_it) {
fh = vf_it.handle();
faces.push_back(fh);
Points& pts = mesh_.property(points_, fh);
std::copy(pts.begin(), pts.end(), std::back_inserter(points));
pts.clear();
}
if (faces.empty()) return; // should not happen anyway...
// collect points of the 2 deleted faces
if ((fh=_ci.fl).is_valid()) {
Points& pts = mesh_.property(points_, fh);
std::copy(pts.begin(), pts.end(), std::back_inserter(points));
pts.clear();
}
if ((fh=_ci.fr).is_valid()) {
Points& pts = mesh_.property(points_, fh);
std::copy(pts.begin(), pts.end(), std::back_inserter(points));
pts.clear();
}
// add the deleted point
points.push_back(_ci.p0);
// setup iterators
typename std::vector<FaceHandle>::iterator fh_it, fh_end(faces.end());
typename Points::const_iterator p_it, p_end(points.end());
// re-distribute points
Scalar emin, e;
Point dummy;
typename Mesh::CFVIter fv_it;
for (p_it=points.begin(); p_it!=p_end; ++p_it) {
emin = FLT_MAX;
for (fh_it=faces.begin(); fh_it!=fh_end; ++fh_it) {
const Point& p0 = mesh_.point(fv_it=mesh_.cfv_iter(*fh_it));
const Point& p1 = mesh_.point(++fv_it);
const Point& p2 = mesh_.point(++fv_it);
e = ACG::Geometry::distPointTriangleSquared(*p_it, p0, p1, p2, dummy);
if (e < emin) {
emin = e;
fh = *fh_it;
}
}
mesh_.property(points_, fh).push_back(*p_it);
}
}
//-----------------------------------------------------------------------------
template <class DecimaterT>
typename ModHausdorffT<DecimaterT>::Scalar
ModHausdorffT<DecimaterT>::
compute_sqr_error(FaceHandle _fh, const Point& _p) const
{
typename Mesh::CFVIter fv_it = mesh_.cfv_iter(_fh);
const Point& p0 = mesh_.point(fv_it);
const Point& p1 = mesh_.point(++fv_it);
const Point& p2 = mesh_.point(++fv_it);
const Points& points = mesh_.property(points_, _fh);
typename Points::const_iterator p_it = points.begin();
typename Points::const_iterator p_end = points.end();
Point dummy;
Scalar e;
Scalar emax = ACG::Geometry::distPointTriangleSquared(_p, p0, p1, p2, dummy);
for (; p_it!=p_end; ++p_it) {
e = ACG::Geometry::distPointTriangleSquared(*p_it, p0, p1, p2, dummy);
if (e > emax)
emax = e;
}
return emax;
}
//=============================================================================
}
}
//=============================================================================

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/*===========================================================================*\
* *
* OpenMesh *
* Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen *
* www.openmesh.org *
* *
*---------------------------------------------------------------------------*
* This file is part of OpenMesh. *
* *
* OpenMesh 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, either version 3 of *
* the License, or (at your option) any later version with the *
* following exceptions: *
* *
* If other files instantiate templates or use macros *
* or inline functions from this file, or you compile this file and *
* link it with other files to produce an executable, this file does *
* not by itself cause the resulting executable to be covered by the *
* GNU Lesser General Public License. This exception does not however *
* invalidate any other reasons why the executable file might be *
* covered by the GNU Lesser General Public License. *
* *
* OpenMesh 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 LesserGeneral Public *
* License along with OpenMesh. If not, *
* see <http://www.gnu.org/licenses/>. *
* *
\*===========================================================================*/
/*===========================================================================*\
* *
* $Revision: 448 $ *
* $Date: 2011-11-04 13:59:37 +0100 (Fri, 04 Nov 2011) $ *
* *
\*===========================================================================*/
/** \file ModHausdorffT.hh
*/
//=============================================================================
//
// CLASS ModHausdorffT
//
//=============================================================================
#ifndef MB_MODHAUSDORFFT_HH
#define MB_MODHAUSDORFFT_HH
//== INCLUDES =================================================================
#include <OpenMesh/Tools/Decimater/ModBaseT.hh>
#include <OpenMesh/Core/Utils/Property.hh>
#include <vector>
#include <float.h>
//== NAMESPACES ===============================================================
namespace OpenMesh {
namespace Decimater {
//== CLASS DEFINITION =========================================================
template <class DecimaterT>
class ModHausdorffT : public ModBaseT<DecimaterT>
{
public:
DECIMATING_MODULE( ModHausdorffT, DecimaterT, Roundness );
typedef typename Mesh::Scalar Scalar;
typedef typename Mesh::Point Point;
typedef typename Mesh::FaceHandle FaceHandle;
typedef std::vector<Point> Points;
/// Constructor
ModHausdorffT(DecimaterT& _dec,
Scalar _error_tolerance = FLT_MAX)
: Base(_dec, true),
mesh_(Base::mesh()),
tolerance_(_error_tolerance)
{
mesh_.add_property(points_);
}
/// Destructor
~ModHausdorffT()
{
mesh_.remove_property(points_);
}
/// get max error tolerance
Scalar tolerance() const { return tolerance_; }
/// set max error tolerance
void set_tolerance(Scalar _e) { tolerance_ = _e; }
/// reset per-face point lists
virtual void initialize();
/// compute Hausdorff error for one-ring
virtual float collapse_priority(const CollapseInfo& _ci);
/// re-distribute points
virtual void postprocess_collapse(const CollapseInfo& _ci);
private:
/// compute max error for face _fh w.r.t. its point list and _p
Scalar compute_sqr_error(FaceHandle _fh, const Point& _p) const;
private:
Mesh& mesh_;
Scalar tolerance_;
OpenMesh::FPropHandleT<Points> points_;
};
//=============================================================================
} // END_NS_DECIMATER
} // END_NS_OPENMESH
//=============================================================================
#if defined(INCLUDE_TEMPLATES) && !defined(MB_MODHAUSDORFFT_C)
#define MB_MODHAUSDORFFT_TEMPLATES
#include "ModHausdorffT.cc"
#endif
//=============================================================================
#endif // MB_MODHAUSDORFFT_HH defined
//=============================================================================

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src/OpenMesh/Tools/Decimater/ModNormalDeviationT.hh Normal file
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/*===========================================================================*\
* *
* OpenMesh *
* Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen *
* www.openmesh.org *
* *
*---------------------------------------------------------------------------*
* This file is part of OpenMesh. *
* *
* OpenMesh 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, either version 3 of *
* the License, or (at your option) any later version with the *
* following exceptions: *
* *
* If other files instantiate templates or use macros *
* or inline functions from this file, or you compile this file and *
* link it with other files to produce an executable, this file does *
* not by itself cause the resulting executable to be covered by the *
* GNU Lesser General Public License. This exception does not however *
* invalidate any other reasons why the executable file might be *
* covered by the GNU Lesser General Public License. *
* *
* OpenMesh 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 LesserGeneral Public *
* License along with OpenMesh. If not, *
* see <http://www.gnu.org/licenses/>. *
* *
\*===========================================================================*/
/*===========================================================================*\
* *
* $Revision: 448 $ *
* $Date: 2011-11-04 13:59:37 +0100 (Fri, 04 Nov 2011) $ *
* *
\*===========================================================================*/
/** \file ModNormalDeviationT.hh
*/
//=============================================================================
//
// CLASS ModNormalDeviationT
//
//=============================================================================
#ifndef MB_MODNORMALDEVIATIONT_HH
#define MB_MODNORMALDEVIATIONT_HH
//== INCLUDES =================================================================
#include <OpenMesh/Tools/Decimater/ModBaseT.hh>
#include <OpenMesh/Core/Utils/Property.hh>
#include <ACG/Geometry/Types/NormalConeT.hh>
//== NAMESPACES ===============================================================
namespace OpenMesh {
namespace Decimater {
//== CLASS DEFINITION =========================================================
template <class DecimaterT>
class ModNormalDeviationT : public ModBaseT< DecimaterT >
{
public:
DECIMATING_MODULE( ModNormalDeviationT, DecimaterT, NormalDeviation );
typedef typename Mesh::Scalar Scalar;
typedef typename Mesh::Point Point;
typedef typename Mesh::Normal Normal;
typedef typename Mesh::VertexHandle VertexHandle;
typedef typename Mesh::FaceHandle FaceHandle;
typedef typename Mesh::EdgeHandle EdgeHandle;
typedef ACG::Geometry::NormalConeT<Scalar> NormalCone;
public:
/// Constructor
ModNormalDeviationT(DecimaterT& _dec, float _max_dev = 180.0)
: Base(_dec, true),
mesh_(Base::mesh())
{
set_normal_deviation(_max_dev);
mesh_.add_property(normal_cones_);
}
/// Destructor
~ModNormalDeviationT() {
mesh_.add_property(normal_cones_);
}
/// Get normal deviation
Scalar normal_deviation() const {
return normal_deviation_ / M_PI * 180.0;
}
/// Set normal deviation
void set_normal_deviation(Scalar _s) {
normal_deviation_ = _s / 180.0 * M_PI;
}
/// Allocate and init normal cones
void initialize() {
if (!normal_cones_.is_valid())
mesh_.add_property(normal_cones_);
typename Mesh::FaceIter f_it = mesh_.faces_begin(),
f_end = mesh_.faces_end();
for (; f_it != f_end; ++f_it)
mesh_.property(normal_cones_, f_it) = NormalCone(mesh_.normal(f_it));
}
float collapse_priority(const CollapseInfo& _ci) {
// simulate collapse
mesh_.set_point(_ci.v0, _ci.p1);
typename Mesh::Scalar max_angle(0.0);
typename Mesh::ConstVertexFaceIter vf_it(mesh_, _ci.v0);
typename Mesh::FaceHandle fh, fhl, fhr;
if (_ci.v0vl.is_valid()) fhl = mesh_.face_handle(_ci.v0vl);
if (_ci.vrv0.is_valid()) fhr = mesh_.face_handle(_ci.vrv0);
for (; vf_it; ++vf_it) {
fh = vf_it.handle();
if (fh != _ci.fl && fh != _ci.fr) {
NormalCone nc = mesh_.property(normal_cones_, fh);
nc.merge(NormalCone(mesh_.calc_face_normal(fh)));
if (fh == fhl) nc.merge(mesh_.property(normal_cones_, _ci.fl));
if (fh == fhr) nc.merge(mesh_.property(normal_cones_, _ci.fr));
if (nc.angle() > max_angle) {
max_angle = nc.angle();
if (max_angle > 0.5*normal_deviation_)
break;
}
}
}
// undo simulation changes
mesh_.set_point(_ci.v0, _ci.p0);
return (max_angle < 0.5*normal_deviation_ ?
max_angle : float( Base::ILLEGAL_COLLAPSE ));
}
void postprocess_collapse(const CollapseInfo& _ci) {
// account for changed normals
typename Mesh::VertexFaceIter vf_it(mesh_, _ci.v1);
for (; vf_it; ++vf_it)
mesh_.property(normal_cones_, vf_it).
merge(NormalCone(mesh_.normal(vf_it)));
// normal cones of deleted triangles
typename Mesh::FaceHandle fh;
if (_ci.vlv1.is_valid()) {
fh = mesh_.face_handle(mesh_.opposite_halfedge_handle(_ci.vlv1));
if (fh.is_valid())
mesh_.property(normal_cones_, fh).
merge(mesh_.property(normal_cones_, _ci.fl));
}
if (_ci.v1vr.is_valid()) {
fh = mesh_.face_handle(mesh_.opposite_halfedge_handle(_ci.v1vr));
if (fh.is_valid())
mesh_.property(normal_cones_, fh).
merge(mesh_.property(normal_cones_, _ci.fr));
}
}
private:
Mesh& mesh_;
Scalar normal_deviation_;
OpenMesh::FPropHandleT<NormalCone> normal_cones_;
};
//=============================================================================
} // END_NS_DECIMATER
} // END_NS_OPENMESH
//=============================================================================
#endif // MB_MODNORMALDEVIATIONT_HH defined
//=============================================================================