FKDPoint.h

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#ifndef COMMONTOOLS_RECOALGOS_FKDPOINT_H
#define COMMONTOOLS_RECOALGOS_FKDPOINT_H
#include <array>
#include <utility>

//a K-dimensional point to interface with the FKDTree class
template<class TYPE, int numberOfDimensions>
class FKDPoint
{

    public:
        FKDPoint() :
                theElements(), theId(0)
        {
        }

        FKDPoint(TYPE x, TYPE y, unsigned int id = 0)
        {
            static_assert(numberOfDimensions==2,"FKDPoint number of arguments does not match the number of dimensions");

            theId = id;
            theElements[0] = x;
            theElements[1] = y;
        }

        FKDPoint(TYPE x, TYPE y, TYPE z, unsigned int id = 0)
        {
            static_assert(numberOfDimensions==3,"FKDPoint number of arguments does not match the number of dimensions");

            theId = id;
            theElements[0] = x;
            theElements[1] = y;
            theElements[2] = z;
        }

        FKDPoint(TYPE x, TYPE y, TYPE z, TYPE w, unsigned int id = 0)
        {
            static_assert(numberOfDimensions==4,"FKDPoint number of arguments does not match the number of dimensions");
            theId = id;
            theElements[0] = x;
            theElements[1] = y;
            theElements[2] = z;
            theElements[3] = w;
        }

        // the user should check that i < numberOfDimensions
        TYPE& operator[](unsigned int const i)
        {
            return theElements[i];
        }

        TYPE const& operator[](unsigned int const i) const
        {
            return theElements[i];
        }

        void setDimension(unsigned int i, const TYPE& value)
        {
            theElements[i] = value;
        }

        void setId(const unsigned int id)
        {
            theId = id;
        }

        unsigned int getId() const
        {
            return theId;
        }

    private:
        std::array<TYPE, numberOfDimensions> theElements;
        unsigned int theId;
};

#endif