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Modified intersectionPlaneQuality so that it also compute the per vertex normal according to the mesh...

This commit is contained in:
Paolo Cignoni 2012-04-18 21:09:08 +00:00
parent ffdc2f2b28
commit ba507529c8
1 changed files with 10 additions and 0 deletions
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10
vcg/complex/algorithms/intersection.h
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@ -148,22 +148,30 @@ bool IntersectionPlaneMeshQuality(TriMeshType & m,
EdgeMeshType & em) EdgeMeshType & em)
{ {
std::vector<Point3f> ptVec; std::vector<Point3f> ptVec;
std::vector<Point3f> nmVec;
tri::UpdateQuality<TriMeshType>::VertexFromPlane(m,pl); tri::UpdateQuality<TriMeshType>::VertexFromPlane(m,pl);
for(size_t i=0;i<m.face.size();i++) for(size_t i=0;i<m.face.size();i++)
if(!m.face[i].IsD()) if(!m.face[i].IsD())
{ {
ptVec.clear(); ptVec.clear();
nmVec.clear();
for(int j=0;j<3;++j) for(int j=0;j<3;++j)
{ {
if((m.face[i].V0(j)->Q() * m.face[i].V1(j)->Q())<0) if((m.face[i].V0(j)->Q() * m.face[i].V1(j)->Q())<0)
{ {
const Point3f &p0 = m.face[i].V0(j)->cP(); const Point3f &p0 = m.face[i].V0(j)->cP();
const Point3f &p1 = m.face[i].V1(j)->cP(); const Point3f &p1 = m.face[i].V1(j)->cP();
const Point3f &n0 = m.face[i].V0(j)->cN();
const Point3f &n1 = m.face[i].V1(j)->cN();
float q0 = m.face[i].V0(j)->Q();
float q1 = m.face[i].V1(j)->Q();
// printf("Intersection ( %3.2f %3.2f %3.2f )-( %3.2f %3.2f %3.2f )\n",p0[0],p0[1],p0[2],p1[0],p1[1],p1[2]); // printf("Intersection ( %3.2f %3.2f %3.2f )-( %3.2f %3.2f %3.2f )\n",p0[0],p0[1],p0[2],p1[0],p1[1],p1[2]);
Point3f pp; Point3f pp;
Segment3f seg(p0,p1); Segment3f seg(p0,p1);
IntersectionPlaneSegment(pl,seg,pp); IntersectionPlaneSegment(pl,seg,pp);
ptVec.push_back(pp); ptVec.push_back(pp);
Point3f nn =(n0*fabs(q1) + n1*fabs(q0))/fabs(q0-q1);
nmVec.push_back(nn);
} }
if(m.face[i].V(j)->Q()==0) ptVec.push_back(m.face[i].V(j)->cP()); if(m.face[i].V(j)->Q()==0) ptVec.push_back(m.face[i].V(j)->cP());
} }
@ -173,9 +181,11 @@ bool IntersectionPlaneMeshQuality(TriMeshType & m,
vcg::tri::Allocator<EdgeMeshType>::AddEdges(em,1); vcg::tri::Allocator<EdgeMeshType>::AddEdges(em,1);
vi = vcg::tri::Allocator<EdgeMeshType>::AddVertices(em,2); vi = vcg::tri::Allocator<EdgeMeshType>::AddVertices(em,2);
(*vi).P() = ptVec[0]; (*vi).P() = ptVec[0];
(*vi).N() = nmVec[0];
em.edge.back().V(0) = &(*vi); em.edge.back().V(0) = &(*vi);
vi++; vi++;
(*vi).P() = ptVec[1]; (*vi).P() = ptVec[1];
(*vi).N() = nmVec[1];
em.edge.back().V(1) = &(*vi); em.edge.back().V(1) = &(*vi);
} }
} }