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namespace md {
template<class Real>
Simplex<Real>::Simplex(Index id, Point<Real> birth, int dim, const Column& bdry)
:
id_(id),
pos_(birth),
dim_(dim),
facet_indices_(bdry) { }
template<class Real>
void Simplex<Real>::translate(Real a)
{
pos_.translate(a);
}
template<class Real>
void Simplex<Real>::init_rivet(std::string s)
{
auto delim_pos = s.find_first_of(";");
assert(delim_pos > 0);
std::string vertices_str = s.substr(0, delim_pos);
std::string pos_str = s.substr(delim_pos + 1);
assert(not vertices_str.empty() and not pos_str.empty());
// get vertices
std::stringstream vertices_ss(vertices_str);
int dim = 0;
int vertex;
while (vertices_ss >> vertex) {
dim++;
vertices_.push_back(vertex);
}
//
std::sort(vertices_.begin(), vertices_.end());
assert(dim > 0);
std::stringstream pos_ss(pos_str);
// TODO: get rid of 1-criticaltiy assumption
pos_ss >> pos_.x >> pos_.y;
}
template<class Real>
void Simplex<Real>::init_phat_like(std::string s)
{
facet_indices_.clear();
std::stringstream ss(s);
ss >> dim_ >> pos_.x >> pos_.y;
if (dim_ > 0) {
facet_indices_.reserve(dim_ + 1);
for (int j = 0; j <= dim_; j++) {
Index k;
ss >> k;
facet_indices_.push_back(k);
}
}
}
template<class Real>
Simplex<Real>::Simplex(Index _id, std::string s, BifiltrationFormat input_format)
:id_(_id)
{
switch (input_format) {
case BifiltrationFormat::phat_like :
init_phat_like(s);
break;
case BifiltrationFormat::rivet :
init_rivet(s);
break;
}
}
template<class Real>
std::ostream& operator<<(std::ostream& os, const Simplex<Real>& x)
{
os << "Simplex<Real>(id = " << x.id() << ", dim = " << x.dim();
os << ", boundary = " << container_to_string(x.boundary()) << ", pos = " << x.position() << ")";
return os;
}
}
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