bool SparseOptimizer::buildIndexMapping(SparseOptimizer::VertexContainer& vlist){
if (! vlist.size()){
_ivMap.clear();
return false;
}
_ivMap.resize(vlist.size());
size_t i = 0;
for (int k=0; k<2; k++)
for (VertexContainer::iterator it=vlist.begin(); it!=vlist.end(); ++it){
OptimizableGraph::Vertex* v = *it;
if (! v->fixed()){
if (static_cast<int>(v->marginalized()) == k){
v->setHessianIndex(i);
_ivMap[i]=v;
i++;
}
}
else {
v->setHessianIndex(-1);
}
}
_ivMap.resize(i);
return true;
}
