manolas
/
vcglib
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Added FaceBorderFromVF

This commit is contained in:
Paolo Cignoni 2004-07-06 06:27:02 +00:00
parent a267ba1a63
commit 1dd0f30375
1 changed files with 44 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
vcg/complex/trimesh/update/flag.h
View File

@ -24,6 +24,9 @@
History
$Log: not supported by cvs2svn $
Revision 1.4 2004/05/13 15:58:55 ganovelli
function Clear added
Revision 1.3 2004/03/12 15:22:19 cignoni
Written some documentation and added to the trimes doxygen module
@ -85,6 +88,47 @@ static void FaceBorderFromFF(MeshType &m)
}
}
static void FaceBorderFromVF(MeshType &m)
{
VertexIterator vi;
assert(m.HasVFTopology());
int visitedBit=VertexType::NewUserBit();
// Calcolo dei bordi
// per ogni vertice vi si cercano i vertici adiacenti che sono toccati da una faccia sola
// (o meglio da un numero dispari di facce)
const int BORDERFLAG[3]={FaceType::BORDER0, FaceType::BORDER1, FaceType::BORDER2};
for(vi=m.vert.begin();vi!=m.vert.end();++vi)
if(!(*vi).IsD())
{
for(face::VFIterator<FaceType> vfi(&*vi) ; !vfi.End(); ++vfi )
{
vfi.f->V1(vfi.z)->ClearUserBit(visitedBit);
vfi.f->V2(vfi.z)->ClearUserBit(visitedBit);
}
for(face::VFIterator<FaceType> vfi(&*vi) ; !vfi.End(); ++vfi )
{
if(vfi.f->V1(vfi.z)->IsUserBit(visitedBit)) vfi.f->V1(vfi.z)->ClearUserBit(visitedBit);
else vfi.f->V1(vfi.z)->SetUserBit(visitedBit);
if(vfi.f->V2(vfi.z)->IsUserBit(visitedBit)) vfi.f->V2(vfi.z)->ClearUserBit(visitedBit);
else vfi.f->V2(vfi.z)->SetUserBit(visitedBit);
}
for(face::VFIterator<FaceType> vfi(&*vi) ; !vfi.End(); ++vfi )
{
if(vfi.f->V(vfi.z)< vfi.f->V1(vfi.z) && vfi.f->V1(vfi.z)->IsUserBit(visitedBit))
vfi.f->Flags() |= BORDERFLAG[vfi.z];
if(vfi.f->V(vfi.z)< vfi.f->V2(vfi.z) && vfi.f->V2(vfi.z)->IsUserBit(visitedBit))
vfi.f->Flags() |= BORDERFLAG[(vfi.z+2)%3];
}
}
}
// versione minimale che non calcola i complex flag.
void FaceBorderFromNone()
{