include/geometry/distances.hpp
author Aravindakshan Babu <akshan@stanford.edu>
Fri, 02 Jul 2010 17:08:02 -0700
branchdev
changeset 216 7aefb2d67203
parent 136 beff535b53ff
permissions -rw-r--r--
Made the data argument in Point's __init__method to be an optional argument by making it a boost::python::optional.

template<class Distances_>
ExplicitDistances<Distances_>::
ExplicitDistances(const Distances& distances): 
    size_(distances.size()), distances_((distances.size() * (distances.size() + 1))/2)
{
    IndexType i = 0;
    for (typename Distances::IndexType a = distances.begin(); a != distances.end(); ++a)
        for (typename Distances::IndexType b = a; b != distances.end(); ++b)
        {
            distances_[i++] = distances(a,b);
        }
}

template<class Distances_>
typename ExplicitDistances<Distances_>::DistanceType
ExplicitDistances<Distances_>::
operator()(IndexType a, IndexType  b) const
{
    if (a > b) std::swap(a,b);
    return distances_[a*size_ - ((a*(a-1))/2) + (b-a)];
}

template<class Distances_>
typename ExplicitDistances<Distances_>::DistanceType&
ExplicitDistances<Distances_>::
operator()(IndexType a, IndexType  b)
{
    if (a > b) std::swap(a,b);
    return distances_[a*size_ - ((a*(a-1))/2) + (b-a)];
}