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mgnisia/ravel_index.h

Created September 23, 2020 17:56
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Transform 1D Index Notation to 3D Index notation in C++ / CPP
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ravel_index.h
template<typename T>
std::array<T,3> index_3D(T index, T size) {
T x = index % size;
T tmp = (index - x) / size;
T y = tmp % size;
T z = (tmp - y) / size;
return std::array<T,3>{z,y,x};
}
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