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added term to internal force in order to deny area=0 for each face.

This commit is contained in:
Nico Pietroni 2005-04-21 12:24:41 +00:00
parent dbb88409e3
commit 51040fd364
1 changed files with 15 additions and 3 deletions
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18
apps/test/segmentation3d/segmentator.h
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@ -105,6 +105,7 @@ public:
public:
bool intersected;
float kdihedral;
ScalarType AreaRep;
MyFace()
{
@ -116,10 +117,8 @@ public:
{
__super::Init(k,mass);
kdihedral=k_dihedral;
//if (!intersected)
AreaRep=((V(1)->RPos() - V(0)->RPos()) ^ (V(2)->RPos() - V(0)->RPos())).Norm();
SetS();
/*if (QualityFace()<0.1f)
ClearS();*/
}
bool IsActive()
@ -204,6 +203,19 @@ public:
}
}
///area changing constrain penalize area goes to zero
CoordType m0=(V(0)->P()+V(1)->P())/2.f;
CoordType m1=(V(1)->P()+V(2)->P())/2.f;
CoordType m2=(V(2)->P()+V(0)->P())/2.f;
m0=(V(2)->P()-m0).Normalize();//directions
m1=(V(0)->P()-m1).Normalize();
m2=(V(1)->P()-m2).Normalize();
ScalarType FArea=AreaRep/Area()*_k;
V(0)->IntForce()+=m0*FArea/3.f;
V(1)->IntForce()+=m1*FArea/3.f;
V(2)->IntForce()+=m2*FArea/3.f;
///end area constrain
return(__super::Update());
///new
//double stretch;