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Corrected small bug in the ExtractPolygon function that collect all the tri of a polygonal face

This commit is contained in:
Paolo Cignoni 2014-05-20 20:48:04 +00:00
parent 1803989930
commit d2131fd436
1 changed files with 10 additions and 2 deletions
vcg/complex/algorithms
polygon_support.h

12
vcg/complex/algorithms/polygon_support.h
View File

@ -148,9 +148,12 @@ namespace tri {
// around the polygonal face determined by the current FAUX-EDGE markings // around the polygonal face determined by the current FAUX-EDGE markings
// It assumes that the mesh is 2Manifold and has FF adjacency already computed // It assumes that the mesh is 2Manifold and has FF adjacency already computed
// NOTE: All the faces touched are marked as visited. (so for example you can avoid to get twice the same polygon) // NOTE: All the faces touched are marked as visited. (so for example you can avoid to get twice the same polygon)
static void ExtractPolygon(typename TriMeshType::FacePointer tfp, std::vector<typename TriMeshType::VertexPointer> &vs) static void ExtractPolygon(typename TriMeshType::FacePointer tfp,
std::vector<typename TriMeshType::VertexPointer> &vs,
std::vector<typename TriMeshType::FacePointer> &fs)
{ {
vs.clear(); vs.clear();
fs.clear();
// find a non tagged edge // find a non tagged edge
int se = -1; int se = -1;
for(int i=0; i<3; i++) if (!( tfp->IsF(i))) { se = i; break;} for(int i=0; i<3; i++) if (!( tfp->IsF(i))) { se = i; break;}
@ -172,6 +175,7 @@ namespace tri {
while( p.F()->IsF(p.E()) ) while( p.F()->IsF(p.E()) )
{ {
if(!p.F()->IsV()) fs.push_back(p.F());
p.F()->SetV(); p.F()->SetV();
p.FlipF(); p.FlipF();
p.FlipE(); p.FlipE();
@ -179,7 +183,11 @@ namespace tri {
p.FlipV(); p.FlipV();
} while(p!=start); } while(p!=start);
} }
static void ExtractPolygon(typename TriMeshType::FacePointer tfp, std::vector<typename TriMeshType::VertexPointer> &vs)
{
std::vector<typename TriMeshType::FacePointer> fs;
ExtractPolygon(tfp,vs,fs);
}
}; // end of struct }; // end of struct
}} // end namespace vcg::tri }} // end namespace vcg::tri