\begin{tikzpicture}
	\draw[step=2,white] (-0.5cm,-0.5cm) rectangle (12.5cm,12.5cm);
	\begin{pgflowlevelscope}{\pgftransformscale{1.5}}
		\draw (1.2,0) node[anchor=south]{\pig{2.9}}
					(4.9,0) node[anchor=south]{\pig[nose hole fill colour=purple!20,fill
									colour=blue!40]{5.9}};
	\end{pgflowlevelscope}
	\ifthenelse{\boolean{rahmen}}{
		\draw [step=2,black, thick] (-0.5cm,-0.5cm) grid (12.5cm,12.5cm);
	}{
		\draw [step=2,transparent] (-0.5cm,-0.5cm) grid (12.5cm,12.5cm);
	}
\end{tikzpicture}
