New Decimater mods:
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
213
src/OpenMesh/Tools/Decimater/ModNormalDeviationT.hh
Normal file
213
src/OpenMesh/Tools/Decimater/ModNormalDeviationT.hh
Normal file
@@ -0,0 +1,213 @@
|
||||
/*===========================================================================*\
|
||||
* *
|
||||
* 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
|
||||
//=============================================================================
|
||||
|
||||
Reference in New Issue
Block a user