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Updating of edge values id divided into 2 functions ( the first one update only a face...) added also resetting of edges flags.. (see first line of Set function)

This commit is contained in:
Nico Pietroni 2006-05-15 13:12:36 +00:00
parent 179d96b098
commit 413995409c
1 changed files with 59 additions and 51 deletions
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110
vcg/complex/trimesh/update/edges.h
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@ -24,6 +24,9 @@
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$Log: not supported by cvs2svn $
Revision 1.2 2004/05/12 18:52:35 ganovelli
removed call to ComputeRT and put its body here
Revision 1.1 2004/05/12 10:39:45 ganovelli
created
@ -39,63 +42,68 @@ namespace tri {
/** \addtogroup trimesh */
/*@{*/
/// Management, updating and computation of per-vertex and per-face normals.
/// This class is used to compute or update the normals that can be stored in the vertex or face component of a mesh.
template <class ComputeMeshType>
class UpdateEdges
{
/// Management, updating and computation of per-vertex and per-face normals.
/// This class is used to compute or update the normals that can be stored in the vertex or face component of a mesh.
template <class ComputeMeshType>
class UpdateEdges
{
public:
typedef ComputeMeshType MeshType;
typedef typename MeshType::VertexType VertexType;
typedef typename MeshType::VertexPointer VertexPointer;
typedef typename MeshType::VertexIterator VertexIterator;
typedef typename MeshType::FaceType FaceType;
typedef typename MeshType::FacePointer FacePointer;
typedef typename MeshType::FaceIterator FaceIterator;
typedef typename MeshType::FaceType::ScalarType ScalarType;
public:
typedef ComputeMeshType MeshType;
typedef typename MeshType::VertexType VertexType;
typedef typename MeshType::VertexPointer VertexPointer;
typedef typename MeshType::VertexIterator VertexIterator;
typedef typename MeshType::FaceType FaceType;
typedef typename MeshType::FacePointer FacePointer;
typedef typename MeshType::FaceIterator FaceIterator;
typedef typename MeshType::FaceType::ScalarType ScalarType;
/// Calculates the vertex normal (if stored in the current face type)
static void Box(ComputeMeshType &m)
{
m.bbox.SetNull();
VertexIterator vi;
for(vi=m.vert.begin();vi!=m.vert.end();++vi)
if( !(*vi).IsD() ) m.bbox.Add((*vi).P());
/// Calculates the vertex normal (if stored in the current face type)
static void Box(ComputeMeshType &m)
{
m.bbox.SetNull();
VertexIterator vi;
for(vi=m.vert.begin();vi!=m.vert.end();++vi)
if( !(*vi).IsD() ) m.bbox.Add((*vi).P());
}
}
static void Set(ComputeMeshType &m)
{
FaceIterator f;
for(f = m.face.begin(); f!=m.face.end(); ++f)
if(!(*f).IsD())
{
// Primo calcolo degli edges
(*f).edge[0] = (*f).V(1)->P(); (*f).edge[0] -= (*f).V(0)->P();
(*f).edge[1] = (*f).V(2)->P(); (*f).edge[1] -= (*f).V(1)->P();
(*f).edge[2] = (*f).V(0)->P(); (*f).edge[2] -= (*f).V(2)->P();
// Calcolo di plane
(*f).plane.SetDirection((*f).edge[0]^(*f).edge[1]);
(*f).plane.SetOffset((*f).plane.Direction() * (*f).V(0)->P());
(*f).plane.Normalize();
// Calcolo migliore proiezione
ScalarType nx = math::Abs((*f).plane.Direction()[0]);
ScalarType ny = math::Abs((*f).plane.Direction()[1]);
ScalarType nz = math::Abs((*f).plane.Direction()[2]);
ScalarType d;
if(nx>ny && nx>nz) { (*f).Flags() |= FaceType::NORMX; d = 1/(*f).plane.Direction()[0]; }
else if(ny>nz) { (*f).Flags() |= FaceType::NORMY; d = 1/(*f).plane.Direction()[1]; }
else { (*f).Flags() |= FaceType::NORMZ; d = 1/(*f).plane.Direction()[2]; }
static void Set(FaceType &f)
{
f.Flags() = f.Flags() & (~(FaceType::NORMX|FaceType::NORMY|FaceType::NORMZ));
// Primo calcolo degli edges
f.edge[0] = f.V(1)->P(); f.edge[0] -= f.V(0)->P();
f.edge[1] = f.V(2)->P(); f.edge[1] -= f.V(1)->P();
f.edge[2] = f.V(0)->P(); f.edge[2] -= f.V(2)->P();
// Calcolo di plane
f.plane.SetDirection(f.edge[0]^f.edge[1]);
f.plane.SetOffset(f.plane.Direction() * f.V(0)->P());
f.plane.Normalize();
// Calcolo migliore proiezione
ScalarType nx = math::Abs(f.plane.Direction()[0]);
ScalarType ny = math::Abs(f.plane.Direction()[1]);
ScalarType nz = math::Abs(f.plane.Direction()[2]);
ScalarType d;
if(nx>ny && nx>nz) { f.Flags() |= FaceType::NORMX; d = 1/f.plane.Direction()[0]; }
else if(ny>nz) { f.Flags() |= FaceType::NORMY; d = 1/f.plane.Direction()[1]; }
else { f.Flags() |= FaceType::NORMZ; d = 1/f.plane.Direction()[2]; }
// Scalatura spigoli
(*f).edge[0] *= d;
(*f).edge[1] *= d;
(*f).edge[2] *= d;
}
// Scalatura spigoli
f.edge[0] *= d;
f.edge[1] *= d;
f.edge[2] *= d;
}
static void Set(ComputeMeshType &m)
{
FaceIterator f;
for(f = m.face.begin(); f!=m.face.end(); ++f)
if(!(*f).IsD())
Set(*f);
}
}
}; // end class
} // End namespace