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Commit 12584beb authored by Jan Möbius's avatar Jan Möbius
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Fixed bad property handling in OpenMesh Stripifier doing create and delete of... 

Fixed bad property handling in OpenMesh Stripifier doing create and delete of properties in generator function not in constructor/destructor.

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@102 fdac6126-5c0c-442c-9429-916003d36597
parent a38f4435
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Showing with 109 additions and 104 deletions
Tools/Utils/StripifierT.cc
View file @ 12584beb
//=============================================================================
//
// OpenMesh
// Copyright (C) 2001-2003 by Computer Graphics Group, RWTH Aachen
// www.openmesh.org
//
//
// OpenMesh
// Copyright (C) 2001-2003 by Computer Graphics Group, RWTH Aachen
// www.openmesh.org
//
//-----------------------------------------------------------------------------
//
// License
//
// This library 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, version 2.1.
//
// This library 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 Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
//
// License
//
// This library 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, version 2.1.
//
// This library 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 Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
//-----------------------------------------------------------------------------
//
//
// $Revision$
// $Date$
//
//
//=============================================================================
//=============================================================================
......@@ -45,33 +45,39 @@
//== NAMESPACES ===============================================================
namespace OpenMesh {
//== IMPLEMENTATION ==========================================================
template <class Mesh>
unsigned int
StripifierT<Mesh>::
stripify()
StripifierT(Mesh& _mesh) :
mesh_(_mesh)
{
// preprocess: add new properties
mesh_.add_property( processed_ );
mesh_.add_property( used_ );
mesh_.add_property( used_ );
mesh_.request_face_status();
}
template <class Mesh>
StripifierT<Mesh>::
~StripifierT() {
// postprocess: remove properties
mesh_.remove_property(processed_);
mesh_.remove_property(used_);
mesh_.release_face_status();
}
template <class Mesh>
unsigned int
StripifierT<Mesh>::
stripify()
{
// build strips
clear();
build_strips();
// postprocess: remove properties
//mesh_.remove_property(processed_);
//mesh_.remove_property(used_);
//mesh_.release_face_status();
return n_strips();
}
......@@ -90,9 +96,9 @@ build_strips()
FaceHandles faces[3];
typename FaceHandles::iterator fh_it, fh_end;
typename Mesh::FaceIter f_it, f_end=mesh_.faces_end();
// init faces to be un-processed and un-used
// deleted or hidden faces are marked processed
if (mesh_.has_face_status())
......@@ -108,9 +114,9 @@ build_strips()
for (f_it=mesh_.faces_begin(); f_it!=f_end; ++f_it)
processed(f_it) = used(f_it) = false;
}
for (f_it=mesh_.faces_begin(); true; )
{
// find start face
......@@ -118,39 +124,39 @@ build_strips()
if (!processed(f_it))
break;
if (f_it==f_end) break; // stop if all have been processed
// collect starting halfedges
h[0] = mesh_.halfedge_handle(f_it.handle());
h[1] = mesh_.next_halfedge_handle(h[0]);
h[2] = mesh_.next_halfedge_handle(h[1]);
// build 3 strips, take best one
best_length = best_idx = 0;
for (unsigned int i=0; i<3; ++i)
{
build_strip(h[i], experiments[i], faces[i]);
if ((length = experiments[i].size()) > best_length)
if ((length = experiments[i].size()) > best_length)
{
best_length = length;
best_idx = i;
}
for (fh_it=faces[i].begin(), fh_end=faces[i].end();
for (fh_it=faces[i].begin(), fh_end=faces[i].end();
fh_it!=fh_end; ++fh_it)
used(*fh_it) = false;
}
// update processed status
fh_it = faces[best_idx].begin();
fh_end = faces[best_idx].end();
for (; fh_it!=fh_end; ++fh_it)
processed(*fh_it) = true;
// add best strip to strip-list
strips_.push_back(experiments[best_idx]);
}
......@@ -170,17 +176,17 @@ build_strip(typename Mesh::HalfedgeHandle _start_hh,
std::list<unsigned int> strip;
typename Mesh::HalfedgeHandle hh;
typename Mesh::FaceHandle fh;
// reset face list
_faces.clear();
// init strip
strip.push_back(mesh_.from_vertex_handle(_start_hh).idx());
strip.push_back(mesh_.to_vertex_handle(_start_hh).idx());
// walk along the strip: 1st direction
hh = mesh_.prev_halfedge_handle(mesh_.opposite_halfedge_handle(_start_hh));
while (1)
......@@ -191,23 +197,23 @@ build_strip(typename Mesh::HalfedgeHandle _start_hh,
hh = mesh_.next_halfedge_handle(hh);
if (mesh_.is_boundary(hh)) break;
fh = mesh_.face_handle(hh);
if (processed(fh) || used(fh)) break;
if (processed(fh) || used(fh)) break;
_faces.push_back(fh);
used(fh) = true;
strip.push_back(mesh_.to_vertex_handle(hh).idx());
// go left
hh = mesh_.opposite_halfedge_handle(hh);
hh = mesh_.next_halfedge_handle(hh);
if (mesh_.is_boundary(hh)) break;
fh = mesh_.face_handle(hh);
if (processed(fh) || used(fh)) break;
if (processed(fh) || used(fh)) break;
_faces.push_back(fh);
used(fh) = true;
strip.push_back(mesh_.to_vertex_handle(hh).idx());
}
// walk along the strip: 2nd direction
bool flip(false);
hh = mesh_.prev_halfedge_handle(_start_hh);
......@@ -219,28 +225,28 @@ build_strip(typename Mesh::HalfedgeHandle _start_hh,
hh = mesh_.next_halfedge_handle(hh);
if (mesh_.is_boundary(hh)) break;
fh = mesh_.face_handle(hh);
if (processed(fh) || used(fh)) break;
if (processed(fh) || used(fh)) break;
_faces.push_back(fh);
used(fh) = true;
strip.push_front(mesh_.to_vertex_handle(hh).idx());
flip = true;
// go left
hh = mesh_.opposite_halfedge_handle(hh);
hh = mesh_.next_halfedge_handle(hh);
if (mesh_.is_boundary(hh)) break;
fh = mesh_.face_handle(hh);
if (processed(fh) || used(fh)) break;
if (processed(fh) || used(fh)) break;
_faces.push_back(fh);
used(fh) = true;
strip.push_front(mesh_.to_vertex_handle(hh).idx());
flip = false;
}
if (flip) strip.push_front(strip.front());
// copy final strip to _strip
_strip.clear();
_strip.reserve(strip.size());
......
Tools/Utils/StripifierT.hh
View file @ 12584beb
//=============================================================================
//
// OpenMesh
// Copyright (C) 2001-2003 by Computer Graphics Group, RWTH Aachen
// www.openmesh.org
//
//
// OpenMesh
// Copyright (C) 2001-2003 by Computer Graphics Group, RWTH Aachen
// www.openmesh.org
//
//-----------------------------------------------------------------------------
//
// License
//
// This library 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, version 2.1.
//
// This library 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 Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
//
// License
//
// This library 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, version 2.1.
//
// This library 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 Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
//-----------------------------------------------------------------------------
//
//
// $Revision$
// $Date$
//
//
//=============================================================================
//=============================================================================
......@@ -57,7 +57,7 @@ namespace OpenMesh {
/** \class StripifierT StripifierT.hh <OpenMesh/Tools/Utils/StripifierT.hh>
This class decomposes a triangle mesh into several triangle strips.
*/
......@@ -66,7 +66,7 @@ template <class Mesh>
class StripifierT
{
public:
typedef unsigned int Index;
typedef std::vector<Index> Strip;
typedef typename Strip::const_iterator IndexIterator;
......@@ -75,11 +75,10 @@ public:
/// Default constructor
StripifierT(Mesh& _mesh) : mesh_(_mesh) {}
StripifierT(Mesh& _mesh);
/// Destructor
~StripifierT() {}
~StripifierT();
/// Compute triangle strips, returns number of strips
unsigned int stripify();
......
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