# Applying backgrounds to TikZ scope

I have problems creating a background for a scope envionment Here is part of the code I used for a beamer slide:

\documentclass{beamer}
\usepackage{tikz}
\usetikzlibrary{arrows,positioning,calc,backgrounds}

\begin{document}
\begin{frame}[plain]

\begin{tikzpicture}[scale=2, overlay, remember picture]
\coordinate[shift={(4.5cm,-3.5cm)}] (Anchor) at (current page.north west);

\only<2>{\begin{scope}[shift={(Anchor)},/tikz/background rectangle/.style={
fill=yellow,
draw=black
},show background rectangle]
\draw[thin,->] (0,0) node (origin) [below] {$0$} -- (0,1) node (yaxis) [above] {$y$};
\draw[thin,->] (-1,0) node (xaxisL) {} -- (1,0) node (xaxisR) [right] {$x$};
\end{scope} }
\end{tikzpicture}
\end{frame}
\end{document}


Edited for clarification: Because of problem of background when overlay specification is active, i.e. \begin{tikzpicture}[overlay, show background...], This is the reason why I want to see if there is a simple way to put the background inside a scope environment. There isn't unfortunately and one have to draw their own background within scope it seems.

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There is nothing being drawn on the first slide. Can you please draw everything like 2 scopes and describe the problem as ...I want the first scope disappear on slide x and make the scope 2 background appear as y color.... even include an image. Right now, only you know what you want to do and it's too localized for us to get a hold of it. –  percusse Mar 20 '12 at 14:13
@percusse Thanks, well I nailed the problem, but still no solution. Basically, the BACKGROUND tool in tikz does not work with overlays. If overlay option is used, i.e. \begin{tikzpicture}[overlay,show background rectangle,...] the background fills the whole page. Without the overlay option I cannot position the subplot in the slide arbitrarily. –  Mobius Pizza Mar 20 '12 at 14:25
I found out how to use pgfonlayer to make my own background. Thanks anyway –  Mobius Pizza Mar 20 '12 at 14:47
I wish I could understand what your problem was. I will delete my answer and can you please wrap up your solution with a small working code. Others can benefit from this. –  percusse Mar 20 '12 at 14:53
Thanks for your help anyway, I am trying to 'answer my own question' but the system won't let me for another 6 hours :) –  Mobius Pizza Mar 20 '12 at 14:57

In the end I put a custom pgfonlayer background on every scope. This relinquish the need to rely on TikZ background library and hence allow overlay option to work.

\begin{tikzpicture}[scale=2,remember picture,overlay]
\coordinate[shift={(4cm,-3.5cm)}] (Anchor) at (current page.north west);

\only<1>{
\begin{scope}[shift={(Anchor)}]
\draw[thin,->] (0,0) node (origin) [below] {$0$} -- (0,1) node (yaxis) [above] {$y$};
\draw[thin,->] (-1,0) node (xaxisL) {} -- (1,0) node (xaxisR) [right] {$x$};

\begin{pgfonlayer}{background}
\draw[fill=red] (-1.1,1.3) rectangle (1.3,-0.3);
\end{pgfonlayer}
\end{scope}}
%Scope 2... etc
\end{tikzpicture}

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