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Reimplemented SelfIntersection

This commit is contained in:
Paolo Cignoni 2005-12-16 13:13:44 +00:00
parent c334cebb47
commit 94853880bb
1 changed files with 28 additions and 37 deletions
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55
vcg/complex/trimesh/clean.h
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@ -24,6 +24,9 @@
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$Log: not supported by cvs2svn $
Revision 1.22 2005/12/16 10:54:59 corsini
Reimplement isOrientedMesh
Revision 1.21 2005/12/16 10:53:39 corsini
Take account for deletion in isComplexManifold
@ -633,58 +636,46 @@ namespace vcg {
}
}
static bool SelfIntersections(MeshType &m)
static bool SelfIntersections(MeshType &m, std::vector<FaceType*> &ret)
{
assert(FaceType::HasMark()); // Needed by the UG
Box3< ScalarType> bbox;
TriMeshGrid gM;
int nelem;
double bdiag = m.bbox.Diag();
bbox.SetNull();
FaceType *f=0;
Point3x normf, bestq, ip,p;
ret.clear();
FaceIterator fi;
int referredBit = FaceType::NewBitFlag();
int deleted = 0;
for(fi=m.face.begin();fi!=m.face.end();++fi)
(*fi).ClearUserBit(referredBit);
std::vector<FaceType*> ret;
std::vector<FaceType*> inBox;
gM.Set(m.face.begin(),m.face.end());
for(fi=m.face.begin();fi!=m.face.end();++fi)
{
(*fi).SetUserBit(referredBit);
(*fi).GetBBox(bbox);
vcg::trimesh::GetInBoxFace(m, gM, bbox,inBox);
// fill the cell
/*....*/
nelem = inBox.size();
if (nelem>=2)// in a cell
bool Intersected=false;
std::vector<FaceType*>::iterator fib;
for(fib=inBox.begin();fib!=inBox.end();++fib)
{
//test combinations of elements
for (int i=0;i<nelem-1;i++)
for (int j=i+1;j<nelem;j++)
if ((!inBox[i]->IsD())&&(!inBox[j]->IsD())&&(TestIntersection(inBox[i],inBox[j])))
{
ret.push_back(inBox[i]);
ret.push_back(inBox[j]);
if(!(*fib)->IsUserBit(referredBit) && (*fib != &*fi) )
if(TestIntersection(&*fi,*fib)){
ret.push_back(*fib);
if(!Intersected) {
ret.push_back(&*fi);
Intersected=true;
}
}
}
inBox.clear();
bbox.SetNull();
}
FaceType::DeleteBitFlag(referredBit);
return (ret.size()>0);
}