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rewritten InitQualityVertVoronoiArea function

This commit is contained in:
nico 2017-06-21 15:14:03 +02:00
parent 8b49a7803a
commit 1990de4809
1 changed files with 56 additions and 2 deletions
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58
vcg/complex/algorithms/polygonal_algorithms.h
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@ -900,6 +900,49 @@ public:
return MeshArea; return MeshArea;
} }
// static void InitQualityVertVoronoiArea(PolyMeshType &poly_m)
// {
// for (size_t i=0;i<poly_m.vert.size();i++)
// poly_m.vert[i].Q()=0;
// //set the sum of angle for each face
// std::vector<ScalarType> SumAngle(poly_m.face.size(),0);
// for (size_t i=0;i<poly_m.face.size();i++)
// {
// size_t sizeV=poly_m.face[i].VN()-1;
// for (size_t j=0;j<sizeV;j++)
// {
// CoordType P0=poly_m.face[i].P((j+1)%sizeV);
// CoordType P1=poly_m.face[i].P(j);
// CoordType P2=poly_m.face[i].P1(j);
// CoordType dir0=P0-P1;
// CoordType dir1=P2-P1;
// dir0.Normalize();
// dir1.Normalize();
// SumAngle[i]+=vcg::Angle(dir0,dir1);
// }
// }
// for (size_t i=0;i<poly_m.face.size();i++)
// {
// ScalarType AreaF=vcg::PolyArea(poly_m.face[i]);
// size_t sizeV=poly_m.face[i].VN()-1;
// for (size_t j=0;j<poly_m.face[i].VN();j++)
// {
// CoordType P0=poly_m.face[i].P((j+1)%sizeV);
// CoordType P1=poly_m.face[i].P(j);
// CoordType P2=poly_m.face[i].P1(j);
// CoordType dir0=P0-P1;
// CoordType dir1=P2-P1;
// dir0.Normalize();
// dir1.Normalize();
// ScalarType CurrAngle=vcg::Angle(dir0,dir1);
// poly_m.face[i].V(j)->Q()+=AreaF * CurrAngle/SumAngle[i];
// }
// }
// }
static void InitQualityVertVoronoiArea(PolyMeshType &poly_m) static void InitQualityVertVoronoiArea(PolyMeshType &poly_m)
{ {
for (size_t i=0;i<poly_m.vert.size();i++) for (size_t i=0;i<poly_m.vert.size();i++)
@ -907,9 +950,20 @@ public:
for (size_t i=0;i<poly_m.face.size();i++) for (size_t i=0;i<poly_m.face.size();i++)
{ {
ScalarType AreaF=vcg::PolyArea(poly_m.face[i]); // ScalarType AreaF=vcg::PolyArea(poly_m.face[i]);
size_t sizeV=poly_m.face[i].VN()-1;
CoordType baryF=vcg::PolyBarycenter(poly_m.face[i]);
for (size_t j=0;j<poly_m.face[i].VN();j++) for (size_t j=0;j<poly_m.face[i].VN();j++)
poly_m.face[i].V(j)->Q()+=AreaF/(ScalarType)poly_m.face[i].VN(); {
CoordType P0=poly_m.face[i].P((j+sizeV-1)%sizeV);
CoordType P1=poly_m.face[i].P(j);
CoordType P2=poly_m.face[i].P1(j);
vcg::Triangle3<ScalarType> T0(P1,(P0+P1)/2,baryF);
vcg::Triangle3<ScalarType> T1(P1,(P1+P2)/2,baryF);
poly_m.face[i].V(j)->Q()+=vcg::DoubleArea(T0)/2;
poly_m.face[i].V(j)->Q()+=vcg::DoubleArea(T1)/2;
}
} }
} }