manolas
/
vcglib
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

added functions to remove connected components

This commit is contained in:
Paolo Cignoni 2009-06-25 08:49:37 +00:00
parent b2bc0d07ba
commit c7320a32a3
1 changed files with 55 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
vcg/complex/trimesh/clean.h
View File

@ -1555,6 +1555,61 @@ static int MergeCloseVertex(MeshType &m, const ScalarType radius)
RemoveDuplicateVertex(m,true);
return mergedCnt;
}
static std::pair<int,int> RemoveSmallConnectedComponentsSize(MeshType &m, int maxCCSize)
{
std::vector< std::pair<int, typename MeshType::FacePointer> > CCV;
int TotalCC=ConnectedComponents(m, CCV);
int DeletedCC=0;
ConnectedIterator<MeshType> ci;
for(unsigned int i=0;i<CCV.size();++i)
{
std::vector<typename MeshType::FacePointer> FPV;
if(CCV[i].first<maxCCSize)
{
DeletedCC++;
for(ci.start(m,CCV[i].second);!ci.completed();++ci)
FPV.push_back(*ci);
typename std::vector<typename MeshType::FacePointer>::iterator fpvi;
for(fpvi=FPV.begin(); fpvi!=FPV.end(); ++fpvi)
Allocator<MeshType>::DeleteFace(m,(**fpvi));
}
}
return std::make_pair<int,int>(TotalCC,DeletedCC);
}
/// Remove the connected components smaller than a given diameter
// it returns a pair with the number of connected components and the number of deleted ones.
static std::pair<int,int> RemoveSmallConnectedComponentsDiameter(MeshType &m, ScalarType maxDiameter)
{
std::vector< std::pair<int, typename MeshType::FacePointer> > CCV;
int TotalCC=ConnectedComponents(m, CCV);
int DeletedCC=0;
tri::ConnectedIterator<MeshType> ci;
for(unsigned int i=0;i<CCV.size();++i)
{
Box3f bb;
std::vector<typename MeshType::FacePointer> FPV;
for(ci.start(m,CCV[i].second);!ci.completed();++ci)
{
FPV.push_back(*ci);
bb.Add((*ci)->P(0));
bb.Add((*ci)->P(1));
bb.Add((*ci)->P(2));
}
if(bb.Diag()<maxDiameter)
{
DeletedCC++;
typename std::vector<typename MeshType::FacePointer>::iterator fpvi;
for(fpvi=FPV.begin(); fpvi!=FPV.end(); ++fpvi)
tri::Allocator<MeshType>::DeleteFace(m,(**fpvi));
}
}
return std::make_pair<int,int>(TotalCC,DeletedCC);
}
}; // end class
/*@}*/