\begin{tikzpicture}[ scale=0.4, coarse/.style={circle,draw=black,inner sep=2}, fine/.style={cross out,draw=black,inner sep=1}, ] \foreach \x in {0,...,3} \foreach \y in {0,...,7} \node[coarse] at (\x,\y){ }; \foreach \x in {4,...,7} \foreach \y in {0,...,2} \node[coarse] at (\x,\y){ }; \foreach \x in {4,...,7} \foreach \y in {5,...,7} \node[coarse] at (\x,\y){ }; \draw (9,3.5) node[cross out,draw=black,line width=0.5mm,rotate=45]{}; \foreach \x in {0,...,10} \foreach \y in {0,...,10} \node[fine] at (11+0.5*\x,1+0.5*\y){ }; \draw[->,line width=0.5mm] (18,3.5) -- (20,3.5); \foreach \x in {22,...,25} \foreach \y in {0,...,7} \node[coarse] at (\x,\y){ }; \foreach \x in {26,...,29} \foreach \y in {0,...,2} \node[coarse] at (\x,\y){ }; \foreach \x in {26,...,29} \foreach \y in {5,...,7} \node[coarse] at (\x,\y){ }; \foreach \x in {0,...,10} \foreach \y in {0,...,10} \node[fine] at (24+0.5*\x,1+0.5*\y){ }; \end{tikzpicture}