[Tex/LaTex] Best way to scale a tikzpicture with matrices

beamerscalingtikz-pgf

I had the following figure in a document that I am looking to put in some beamer slides. The figure in question is to wide to fit in the slides, so I am looking to scale everything, by say, a factor of 2 smaller.

\begin{frame}
\begin{figure}
\centering
\begin{tikzpicture}[text depth=0.5ex, text height=2ex]
\matrix[matrix of math nodes, anchor=west, row sep=-\pgflinewidth, column sep=-\pgflinewidth, row 2/.style={minimum width=3em, nodes={rectangle, draw}}]
at (0.5,0) 
(mat1)
{
b_{n+1} \\
{} \\
};

\matrix[matrix of math nodes, ampersand replacement=\&, right=of mat1, row sep=-\pgflinewidth, column sep=-\pgflinewidth,row 2/.style={minimum width=3em, nodes={rectangle, draw}}] 
(mat2)
{
b_n \& \ldots \& b_{i+1} \& b_i \& b_{i-1} \& \ldots \& b_2 \& b_1 \\
{} \& {\hspace{1.5cm}} \& {} \& {} \& {} \& {\hspace{1.5cm}} \& {} \& {} \\
};
\node[above=0pt of mat2]
  (cellb) {$B_\mathcal{C}$};

\matrix[matrix of math nodes, anchor=west, row sep=-\pgflinewidth, column sep=-\pgflinewidth, row 1/.style={minimum width=3em, nodes={rectangle, draw}}]
at (0,-3) 
(mat3)
{
{} \\
b_{n+1} \\
};

\matrix[matrix of math nodes, ampersand replacement=\&, right=of mat3, row sep=-\pgflinewidth, column sep=-\pgflinewidth,row 1/.style={minimum width=3em, nodes={rectangle, draw}}] 
(mat4)
{
{} \& {\hspace{1.5cm}} \& {} \& {} \\
b_{m_{n- \delta}} \& \ldots \& b_{m_2} \& b_{m_1} \\
};
\node[below=0pt of mat4]
  (celld) {$B_U$};

\matrix[matrix of math nodes, ampersand replacement=\&, right=of mat4, row sep=-\pgflinewidth, column sep=-\pgflinewidth,row 1/.style={minimum width=3em, nodes={rectangle, draw}}] 
(mat5)
{
{} \& {\hspace{1.5cm}} \& {} \& {} \\
b_{k_{\delta}} \& \ldots \& b_{k_2} \& b_{k_1} \\
};
\node[below=0pt of mat5]
  (celle) {$B_R$};

\begin{scope}[shorten <= -2pt]
\draw[*->]
    (mat5-1-1.north) -- (mat2-2-1.south);
\draw[*->]
    (mat4-1-1.north) -- (mat2-2-3.south);
\draw[*->]
    (mat4-1-3.north) -- (mat2-2-4.south);
\draw[*->]
    (mat4-1-4.north) -- (mat2-2-8.south);
\draw[*->]
    (mat5-1-3.north) -- (mat2-2-5.south);
\draw[*->]
    (mat5-1-4.north) -- (mat2-2-7.south);
\end{scope}
\end{tikzpicture}
\end{figure}
\end{frame}

I have tried [scale=0.5] but to no avail. What is the most convenient way to do this?

Best Answer

I am not sure, if I guessed all your packages right, I still get a font warning. However, you scaled most of your elements to the font size by chosing the unit em. Therefore to reduce size, you have to change the font size, which I did by saying \tiny in line 9:

\documentclass[]{beamer}
\usepackage{tikz}
\usetikzlibrary{matrix, positioning, arrows}

\begin{document}
\begin{frame}
\begin{figure}
\centering
\tiny
\begin{tikzpicture}[text depth=0.5ex, text height=2ex]
\matrix[matrix of math nodes, anchor=west, row sep=-\pgflinewidth, column sep=-\pgflinewidth, row 2/.style={minimum width=3em, nodes={rectangle, draw}}]
at (0.5,0) 
(mat1)
{
b_{n+1} \\
{} \\
};

\matrix[matrix of math nodes, ampersand replacement=\&, right=of mat1, row sep=-\pgflinewidth, column sep=-\pgflinewidth,row 2/.style={minimum width=3em, nodes={rectangle, draw}}] 
(mat2)
{
b_n \& \ldots \& b_{i+1} \& b_i \& b_{i-1} \& \ldots \& b_2 \& b_1 \\
{} \& {\hspace{1.5cm}} \& {} \& {} \& {} \& {\hspace{1.5cm}} \& {} \& {} \\
};
\node[above=0pt of mat2]
  (cellb) {$B_\mathcal{C}$};

\matrix[matrix of math nodes, anchor=west, row sep=-\pgflinewidth, column sep=-\pgflinewidth, row 1/.style={minimum width=3em, nodes={rectangle, draw}}]
at (0,-3) 
(mat3)
{
{} \\
b_{n+1} \\
};

\matrix[matrix of math nodes, ampersand replacement=\&, right=of mat3, row sep=-\pgflinewidth, column sep=-\pgflinewidth,row 1/.style={minimum width=3em, nodes={rectangle, draw}}] 
(mat4)
{
{} \& {\hspace{1.5cm}} \& {} \& {} \\
b_{m_{n- \delta}} \& \ldots \& b_{m_2} \& b_{m_1} \\
};
\node[below=0pt of mat4]
  (celld) {$B_U$};

\matrix[matrix of math nodes, ampersand replacement=\&, right=of mat4, row sep=-\pgflinewidth, column sep=-\pgflinewidth,row 1/.style={minimum width=3em, nodes={rectangle, draw}}] 
(mat5)
{
{} \& {\hspace{1.5cm}} \& {} \& {} \\
b_{k_{\delta}} \& \ldots \& b_{k_2} \& b_{k_1} \\
};
\node[below=0pt of mat5]
  (celle) {$B_R$};

\begin{scope}[shorten <= -2pt]
\draw[*->]
    (mat5-1-1.north) -- (mat2-2-1.south);
\draw[*->]
    (mat4-1-1.north) -- (mat2-2-3.south);
\draw[*->]
    (mat4-1-3.north) -- (mat2-2-4.south);
\draw[*->]
    (mat4-1-4.north) -- (mat2-2-8.south);
\draw[*->]
    (mat5-1-3.north) -- (mat2-2-5.south);
\draw[*->]
    (mat5-1-4.north) -- (mat2-2-7.south);
\end{scope}
\end{tikzpicture}
\end{figure}
\end{frame}
\end{document}

Or another option would be to scale the nodes and fonts of your tikz-picture as well by saying scale=0.7, every node/.style={scale=0.7}

\documentclass[]{beamer}
\usepackage{tikz}
\usetikzlibrary{matrix, positioning, arrows}

\begin{document}
\begin{frame}
\begin{figure}
\centering
\begin{tikzpicture}[text depth=0.5ex, text height=2ex, scale=0.7, every node/.style={scale=0.7}]
\matrix[matrix of math nodes, anchor=west, row sep=-\pgflinewidth, column sep=-\pgflinewidth, row 2/.style={minimum width=3em, nodes={rectangle, draw}}]
at (0.5,0) 
(mat1)
{
b_{n+1} \\
{} \\
};

\matrix[matrix of math nodes, ampersand replacement=\&, right=of mat1, row sep=-\pgflinewidth, column sep=-\pgflinewidth,row 2/.style={minimum width=3em, nodes={rectangle, draw}}] 
(mat2)
{
b_n \& \ldots \& b_{i+1} \& b_i \& b_{i-1} \& \ldots \& b_2 \& b_1 \\
{} \& {\hspace{1.5cm}} \& {} \& {} \& {} \& {\hspace{1.5cm}} \& {} \& {} \\
};
\node[above=0pt of mat2]
  (cellb) {$B_\mathcal{C}$};

\matrix[matrix of math nodes, anchor=west, row sep=-\pgflinewidth, column sep=-\pgflinewidth, row 1/.style={minimum width=3em, nodes={rectangle, draw}}]
at (0,-3) 
(mat3)
{
{} \\
b_{n+1} \\
};

\matrix[matrix of math nodes, ampersand replacement=\&, right=of mat3, row sep=-\pgflinewidth, column sep=-\pgflinewidth,row 1/.style={minimum width=3em, nodes={rectangle, draw}}] 
(mat4)
{
{} \& {\hspace{1.5cm}} \& {} \& {} \\
b_{m_{n- \delta}} \& \ldots \& b_{m_2} \& b_{m_1} \\
};
\node[below=0pt of mat4]
  (celld) {$B_U$};

\matrix[matrix of math nodes, ampersand replacement=\&, right=of mat4, row sep=-\pgflinewidth, column sep=-\pgflinewidth,row 1/.style={minimum width=3em, nodes={rectangle, draw}}] 
(mat5)
{
{} \& {\hspace{1.5cm}} \& {} \& {} \\
b_{k_{\delta}} \& \ldots \& b_{k_2} \& b_{k_1} \\
};
\node[below=0pt of mat5]
  (celle) {$B_R$};

\begin{scope}[shorten <= -2pt]
\draw[*->]
    (mat5-1-1.north) -- (mat2-2-1.south);
\draw[*->]
    (mat4-1-1.north) -- (mat2-2-3.south);
\draw[*->]
    (mat4-1-3.north) -- (mat2-2-4.south);
\draw[*->]
    (mat4-1-4.north) -- (mat2-2-8.south);
\draw[*->]
    (mat5-1-3.north) -- (mat2-2-5.south);
\draw[*->]
    (mat5-1-4.north) -- (mat2-2-7.south);
\end{scope}
\end{tikzpicture}
\end{figure}
\end{frame}
\end{document}

Related Solutions

[Tex/LaTex] How to scale a tikzpicture including texts

There are a few things that scaling doesn't affect; the most noticeable are node sizes and line widths. In a simple picture, it isn't hard to adjust the line width accordingly but the nodes can be difficult. It is possible to force a node to be scaled: put the scale option directly in the node's attributes. Thus \node[above,scale=0.6] at (8,11) {true}; would scale the node. This is a bit annoying to put on every node, so there's an every node style that can be used to do this. Thus:

\begin{tikzpicture}[thick,scale=0.6, every node/.style={scale=0.6}]

Even so, you'd still have to remember to change two things each time here if you wanted to change the scale factor. Fortunately, there's a key transform shape which means that the current transformation is applied to the node. The danger with using this is that this will also apply any rotations that happen to be in effect to the node (normally only translations are applied). If you don't have any rotations, then:

\begin{tikzpicture}[thick,scale=0.6, every node/.style={transform shape}]

will do just fine.

If you do have or worry about those rotations (or for anyone else interested) it would be simple to set a global scale key to fix this:

\tikzset{global scale/.style={
    scale=#1,
    every node/.style={scale=#1}
  }
}

Back to the "normal" solutions. Here's the various solutions:

\documentclass{standalone}
\usepackage{tikz}

\begin{document}

\framebox{\begin{tikzpicture}[thick]
\draw [dashed] (1,12) -- (11,12);
\node[above] at (4,11) {1}; \node[above] at (8,11) {true};
\end{tikzpicture}}

\framebox{\begin{tikzpicture}[thick, scale=0.6]
\draw [dashed] (1,12) -- (11,12);
\node[above] at (4,11) {1}; \node[above] at (8,11) {true};
\end{tikzpicture}}

\framebox{\begin{tikzpicture}[thick, transform canvas={scale=0.6}]
\draw [dashed] (1,12) -- (11,12);
\node[above] at (4,11) {1}; \node[above] at (8,11) {true};
\end{tikzpicture}}

\framebox{\begin{tikzpicture}[thick,scale=0.6, every node/.style={scale=0.6}]
\draw [dashed] (1,12) -- (11,12);
\node[above] at (4,11) {1}; \node[above] at (8,11) {true};
\end{tikzpicture}}

\framebox{\begin{tikzpicture}[thick,scale=0.6, every node/.style={transform shape}]
\draw [dashed] (1,12) -- (11,12);
\node[above] at (4,11) {1}; \node[above] at (8,11) {true};
\end{tikzpicture}}

\end{document}

I put the \frameboxs in because if you count carefully, you'll see that the third example isn't there! In fact, it ended up somewhere at the top of the page, outside what the standalone package thought the page was. So it got clipped out.

scaled pictures

[Tex/LaTex] How to define the default vertical distance between nodes

I don't really get the question so I hope this is what you wanted. If you include a full document (such that we copy paste and see the problem on our systems) things are much more easier.

Here, you can change the default setting within a scope but your block style had a node distance which was resetting every time it is issued. I've made it 2mm such that we can see the difference easier.

\documentclass[tikz]{standalone}
\usetikzlibrary{arrows,shapes.geometric,positioning}

\begin{document}
\begin{tikzpicture}[decision/.style={diamond, draw, text width=4.5em, text badly centered, node distance=3.5cm, inner sep=0pt},
                    block/.style   ={rectangle, draw, text width=6em, text centered, rounded corners, minimum height=4em, minimum height=2em},
                    cloud/.style   ={draw, ellipse, minimum height=2em},
                    line/.style    ={draw,-latex'},
                    node distance = 1cm, 
                    auto]
    \node [block] (1st) {1st};
    \node [block, right= of 1st]  (2nd1) {2nd1};
\begin{scope}[node distance=2mm and 10mm]%Here we change it for everything inside this scope
    \node [block, above= of 2nd1] (2nd2) {2nd2};
    \node [block, below= of 2nd1] (2nd3) {2nd3};
    \node [block, right= of 2nd1] (3rd1) {3rd1};
    \node [block, above= of 3rd1] (3rd2) {3rd2};
    \node [block, above= of 3rd2] (3rd3) {3rd3};
\end{scope}
    \node [block, below= of 3rd1] (3rd4) {3rd4};
    \node [block, below= of 3rd4] (3rd5) {3rd5};

    \path [line] (1st) -- (2nd1);
    \path [line] (2nd1) -- (2nd2);
    \path [line] (2nd1) -- (2nd3);
    \path [line] (2nd2) -- (3rd3);
    \path [line] (2nd1) -- (3rd1);
    \path [line] (1st) -- (2nd1);
\end{tikzpicture}
\end{document}

enter image description here

Best Answer

Related Solutions

[Tex/LaTex] How to scale a tikzpicture including texts

[Tex/LaTex] How to define the default vertical distance between nodes

Related Question