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Refactoring in the code written to retrieve four vertexes around the edge to flip

This commit is contained in:
Paolo Cignoni 2008-03-26 15:01:44 +00:00
parent 929c3d3276
commit dfa921ff88
1 changed files with 22 additions and 34 deletions
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56
vcg/complex/local_optimization/tri_edge_flip.h
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@ -167,23 +167,22 @@ public:
*/
virtual bool IsFeasible()
{
if( math::ToDeg( Angle( _pos.FFlip()->cN() , _pos.F()->cN() ) )> CoplanarAngleThresholdDeg() ) return false;
if( math::ToDeg( Angle(_pos.FFlip()->cN(), _pos.F()->cN()) ) > CoplanarAngleThresholdDeg() )
return false;
CoordType v0, v1, v2, v3;
PosType app = _pos;
int i = _pos.I();
v0 = app.F()->V0(i)->P();
v1 = app.F()->V1(i)->P();
v2 = app.F()->V2(i)->P();
app.FlipF(); app.FlipE(); app.FlipV();
v3 = app.V()->P();
v0 = _pos.F()->V0(i)->P();
v1 = _pos.F()->V1(i)->P();
v2 = _pos.F()->V2(i)->P();
v3 = _pos.F()->FFp(i)->V2(_pos.F()->FFi(i))->P();
// Take the parallelogram formed by the adjacent faces of edge
// If a corner of the parallelogram on extreme of edge to flip is >= 180
// the flip produce two identical faces - avoid this
if( (Angle(v2 - v0, v1 - v0) + Angle(v3 - v0, v1 - v0) >= M_PI) ||
(Angle(v2 - v1, v0 - v1) + Angle(v3 - v1, v0 - v1) >= M_PI))
return false;
return false;
return vcg::face::CheckFlipEdge(*_pos.f, _pos.z);
}
@ -203,13 +202,11 @@ public:
virtual ScalarType ComputePriority()
{
CoordType v0, v1, v2, v3;
PosType app = _pos;
int i = _pos.I();
v0 = app.F()->V0(i)->P();
v1 = app.F()->V1(i)->P();
v2 = app.F()->V2(i)->P();
app.FlipF(); app.FlipE(); app.FlipV();
v3 = app.V()->P();
v0 = _pos.F()->V0(i)->P();
v1 = _pos.F()->V1(i)->P();
v2 = _pos.F()->V2(i)->P();
v3 = _pos.F()->FFp(i)->V2(_pos.F()->FFi(i))->P();
ScalarType Qa = Quality(v0,v1,v2);
ScalarType Qb = Quality(v0,v3,v1);
@ -224,7 +221,8 @@ public:
_priority *= -1;*/
// < 0 if the average quality of faces improves after flip
_priority = ((Qa + Qb) / 2.0) - ((QaAfter + QbAfter) / 2.0);
//_priority = ((Qa + Qb) / 2.0) - ((QaAfter + QbAfter) / 2.0);
_priority = (Qa + Qb - QaAfter - QbAfter) / 2.0;
return _priority;
}
@ -284,26 +282,26 @@ public:
_pos.F()->V(0)->IMark() = GlobalMark();
_pos.F()->V(1)->IMark() = GlobalMark();
_pos.F()->V(2)->IMark() = GlobalMark();
pos.F()->V(2)->IMark() = GlobalMark();
pos.F()->V2(_pos.F()->FFi(_pos.z))->IMark() = GlobalMark();
PosType poss(_pos.f, _pos.z);
poss.FlipV(); poss.FlipE();
if(!poss.IsBorder())
heap.push_back(HeapElem(new MYTYPE(poss, GlobalMark())));
heap.push_back(HeapElem(new MYTYPE(poss, GlobalMark())));
poss.FlipV(); poss.FlipE();
if(!poss.IsBorder())
heap.push_back(HeapElem(new MYTYPE(poss, GlobalMark())));
heap.push_back(HeapElem(new MYTYPE(poss, GlobalMark())));
poss.FlipV(); poss.FlipE();
poss.FlipF(); poss.FlipE();
if(!poss.IsBorder())
heap.push_back(HeapElem(new MYTYPE(poss, GlobalMark())));
heap.push_back(HeapElem(new MYTYPE(poss, GlobalMark())));
poss.FlipV(); poss.FlipE();
if(!poss.IsBorder())
heap.push_back(HeapElem(new MYTYPE(poss, GlobalMark())));
heap.push_back(HeapElem(new MYTYPE(poss, GlobalMark())));
std::push_heap(heap.begin(),heap.end());
}
@ -371,24 +369,15 @@ public:
0
*/
CoordType v0, v1, v2, v3;
PosType app = this->_pos;
int i = this->_pos.I();
v0 = app.F()->V0(i)->P();
v1 = app.F()->V1(i)->P();
v2 = app.F()->V2(i)->P();
app.FlipF(); app.FlipE(); app.FlipV();
v3 = app.V()->P();
v0 = this->_pos.F()->V0(i)->P();
v1 = this->_pos.F()->V1(i)->P();
v2 = this->_pos.F()->V2(i)->P();
v3 = this->_pos.F()->FFp(i)->V2(this->_pos.F()->FFi(i))->P();
//CoordType CircumCenter = vcg::Circumcenter(*(app.F()));
CoordType circumcenter = vcg::Circumcenter(*(this->_pos.F()));
/*ScalarType Radius= Distance(v0,CircumCenter);
ScalarType Radius1= Distance(v1,CircumCenter);
ScalarType Radius2= Distance(v2,CircumCenter);
assert( fabs(Radius-Radius1) < 0.1 );
assert( fabs(Radius-Radius2) < 0.1 );*/
ScalarType radius = Distance(v0, circumcenter);
ScalarType radius1 = Distance(v1, circumcenter);
ScalarType radius2 = Distance(v2, circumcenter);
@ -401,7 +390,6 @@ public:
this->_priority *= -1;*/
this->_priority = (Distance(v3, circumcenter) - radius2);
return this->_priority;
}