Contour.hpp

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#ifndef LOPER_CONTOUR
#define LOPER_CONTOUR

#include <Vector.hpp>
#include <Matrix.hpp>



class Contour
{
public:

    int size() const { return corners.size(); }
    void resize(int newSize) { corners.resize (newSize); }
    void push_back (const IntVec & v) { corners.push_back (v); }
    bool empty() { return corners.empty(); }

    IntVec & operator[](unsigned int index) 
    { 
        assert (index < corners.size());
        return corners[index]; 
    }
    IntVec & at (unsigned int index) 
    {
        assert (index < corners.size());
        return corners[index]; 
    }

    IntVec operator[] (unsigned int index)  const
    { 
        assert (index < corners.size());
        return corners[index]; 
    }
    IntVec at  (unsigned int index)  const
    {
        assert (index < corners.size());
        return corners[index]; 
    }

    IntVec getCentroid() const
    {
        IntVec result(2);

        int itemsToAverage = corners.size();
        for (int i = 0; i < itemsToAverage; i++)
            result += corners[i];

        result /= itemsToAverage;

        return result;
    }

    bool simplifyToQuadrangle();

    std::vector< IntVec > corners;
};


#endif // LOPER_CONTOUR

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