[Tex/LaTex] flow chart page size issue

algorithmsdiagramstikz-stylestikz-treestkz-graph

I have been doing this since from last month. I want to draw this flow chart using

\documentclass[a4paper,11pt]{report}

but if I use above configuration (which I want to use) the flow chart does not show in one page, how do I fix that issue? please help me to complete the flow chart.

1) How do I write a caption for that?

2) Is there any other easy latex package to do that?

enter image description here

Code

\documentclass[a4paper,10pt]{article}
\usepackage[margin=1cm]{geometry}
\usepackage[utf8]{inputenc}
\usepackage{tikz}
\usetikzlibrary{matrix,shapes,arrows,positioning,chains,calc}

\begin{document}

% Define block styles
\tikzset{
desicion/.style={
    diamond,
    draw, thick,
    text width=4em,
    text badly centered,
    inner sep=0pt
},
block/.style={
    rectangle,
    draw, thick,
    text width=10em,
    text centered,
    rounded corners
},
cloud/.style={
    draw,
    ellipse,
    minimum height=2em
},
descr/.style={
    fill=white,
    inner sep=2.5pt
},
connector/.style={
    -latex,
    font=\scriptsize
},
rectangle connector/.style={
    connector,
    to path={(\tikztostart) -- ++(#1,0pt) \tikztonodes |- (\tikztotarget) },
    pos=0.5
},
rectangle connector/.default=-2cm,
straight connector/.style={
    connector,
    to path=--(\tikztotarget) \tikztonodes
},
line/.style={>=latex,->,thick}
}

\begin{tikzpicture}
\matrix (m)[matrix of nodes, column  sep=3cm,row  sep=8mm, align=center, nodes={rectangle,draw, anchor=center} ]
{
 |[block]| {Start}       &   & \\
 |[block]| {Assume that $a=c$ the optimilalty cretierin given by }  &  &                                  \\
    |[desicion]| {Locally optimal}          &           &                                 \\
   |[block]| {Assume that $a=d$ the optimilalty cretierin given by}    &                                            & \\
    |[desicion]| {Locally optimal}         &               &                           \\
 |[block]| {Assume that $a=e$ the optimilalty cretierin given by}    &       |[block]| {$A=c^2$ \\ $A=b^2$}           &        |[block]| {Globsl \\  Optimal \\ Configuration}                 \\
 |[desicion]| {Locally optimal}         &    &                       \\
 |[block]| {Assume that $a=f$ the optimilalty cretierin given by}    &   &   \\
 |[desicion]| {Locally optimal}               & &  |[block]| {Stop}  \\
 |[block]| {Assume that $a=k$ the optimilalty cretierin given by}    &    |[desicion]| {Locally optimal}    &     \\
};
\foreach \f/\t[evaluate=\f as \t using int(\f+1)]  in {1,2,3,4,5,6,7,8,9}{
\path [line] (m-\f-1) edge (m-\t-1);
}
\path [line,red] (m-10-1) edge (m-10-2);
\draw[line,red] (m-10-2) -- (m-6-2) node[pos=0.3,right,text=black]{ Yes, Pass (a,c)};
\draw [line] (m-6-2) --node[midway,below,text=black]{Yes, Pass (a,c)} node[midway,above,text=black]{Step 6} (m-6-3);
\path [line,red] (m-6-3) edge (m-9-3);
\draw [line,red] (m-10-2) -| (m-9-3);

\foreach \f/\l[evaluate=\f as \t using int(\f+1)] in {3/a,5/b,7/c,9/d}{
\draw [line,red] (m-\f-1.east) --node[midway,above,text=black]{Yes, Pass (a,c)} ++ (2.5cm,0)coordinate[](\l);
\draw [line,red] (m-\f-1.east) -| ([xshift=1.5cm]m-\t-1.north);
}

\node[xshift=-2cm] at (m-3-1){Step 1(4)};
\node[xshift=-2cm] at (m-5-1){Step 2 (7)};
\node[xshift=-2cm] at (m-7-1){Step 3 (9)};
\node[xshift=-2cm] at (m-9-1){Step 4 (3)};
\node[xshift=-2cm,above] at (m-10-2){Step 5};
\draw [>=latex,-,red,thick] (a) --(d);
\draw [line,red] ($(a)!0.5!(d)$) -- (m-6-2);
\end{tikzpicture}

\end{document}

enter image description here

Best Answer

You can use adjustbox package and its adjustbox environment and to get a caption, use a figure environment:

\begin{figure}[htbp]
\begin{adjustbox}{max height=0.9\textheight,center}   %% adjust max height

your tikz code

\end{adjustbox}
\caption{This is my flow chart}
\end{figure}

Full code:

\documentclass[a4paper,10pt]{article}
\usepackage[margin=1in]{geometry}  
\usepackage[utf8]{inputenc}
\usepackage{tikz}
\usetikzlibrary{matrix,shapes,arrows,positioning,chains,calc}
\usepackage{adjustbox}

\begin{document}

% Define block styles
\tikzset{
desicion/.style={
    diamond,
    draw, thick,
    text width=4em,
    text badly centered,
    inner sep=0pt
},
block/.style={
    rectangle,
    draw, thick,
    text width=10em,
    text centered,
    rounded corners
},
cloud/.style={
    draw,
    ellipse,
    minimum height=2em
},
descr/.style={
    fill=white,
    inner sep=2.5pt
},
connector/.style={
    -latex,
    font=\scriptsize
},
rectangle connector/.style={
    connector,
    to path={(\tikztostart) -- ++(#1,0pt) \tikztonodes |- (\tikztotarget) },
    pos=0.5
},
rectangle connector/.default=-2cm,
straight connector/.style={
    connector,
    to path=--(\tikztotarget) \tikztonodes
},
line/.style={>=latex,->,thick}
}

\begin{figure}[htbp]
\begin{adjustbox}{max height=0.9\textheight,center}   %% adjust max height
\begin{tikzpicture}
\matrix (m)[matrix of nodes, column  sep=3cm,row  sep=8mm, align=center, nodes={rectangle,draw, anchor=center} ]
{
 |[block]| {Start}       &   & \\
 |[block]| {Assume that $a=c$ the optimilalty cretierin given by }  &  &                                  \\
    |[desicion]| {Locally optimal}          &           &                                 \\
   |[block]| {Assume that $a=d$ the optimilalty cretierin given by}    &                                            & \\
    |[desicion]| {Locally optimal}         &               &                           \\
 |[block]| {Assume that $a=e$ the optimilalty cretierin given by}    &       |[block]| {$A=c^2$ \\ $A=b^2$}           &        |[block]| {Globsl \\  Optimal \\ Configuration}                 \\
 |[desicion]| {Locally optimal}         &    &                       \\
 |[block]| {Assume that $a=f$ the optimilalty cretierin given by}    &   &   \\
 |[desicion]| {Locally optimal}               & &  |[block]| {Stop}  \\
 |[block]| {Assume that $a=k$ the optimilalty cretierin given by}    &    |[desicion]| {Locally optimal}    &     \\
};
\foreach \f/\t[evaluate=\f as \t using int(\f+1)]  in {1,2,3,4,5,6,7,8,9}{
\path [line] (m-\f-1) edge (m-\t-1);
}
\path [line,red] (m-10-1) edge (m-10-2);
\draw[line,red] (m-10-2) -- (m-6-2) node[pos=0.3,right,text=black]{ Yes, Pass (a,c)};
\draw [line] (m-6-2) --node[midway,below,text=black]{Yes, Pass (a,c)} node[midway,above,text=black]{Step 6} (m-6-3);
\path [line,red] (m-6-3) edge (m-9-3);
\draw [line,red] (m-10-2) -| (m-9-3);

\foreach \f/\l[evaluate=\f as \t using int(\f+1)] in {3/a,5/b,7/c,9/d}{
\draw [line,red] (m-\f-1.east) --node[midway,above,text=black]{Yes, Pass (a,c)} ++ (2.5cm,0)coordinate[](\l);
\draw [line,red] (m-\f-1.east) -| ([xshift=1.5cm]m-\t-1.north);
}

\node[xshift=-2cm] at (m-3-1){Step 1(4)};
\node[xshift=-2cm] at (m-5-1){Step 2 (7)};
\node[xshift=-2cm] at (m-7-1){Step 3 (9)};
\node[xshift=-2cm] at (m-9-1){Step 4 (3)};
\node[xshift=-2cm,above] at (m-10-2){Step 5};
\draw [>=latex,-,red,thick] (a) --(d);
\draw [line,red] ($(a)!0.5!(d)$) -- (m-6-2);
\end{tikzpicture}
\end{adjustbox}
\caption{This is my flow chart}
\end{figure}

\end{document}

enter image description here

Related Solutions

Diagrams – Centering Flow Chart Horizontally in LaTeX

As frabjous already mentioned, the image is just too big and either image or margins require adjustment.

But there's trick how you can center oversized images: use \makebox. This way even your wide image gets properly centered:

\noindent\makebox[\textwidth]{%
\psframebox[linearc=5mm,cornersize=absolute]{%
\begin{psmatrix}
  ...
\end{psmatrix}
}}

[Tex/LaTex] Line up nested tikz enviroments or how to get rid of them

As is explained in How do I draw shapes inside a tikz node? pics can be used for defining new objects. My main problem using pics is how to place where you want because they aren't nodes and positioning them is not so easy.

Following code shows how to define EDFA block.

    EDFA/.pic={
        \begin{scope}[scale=.5]
        \draw (-1,0) coordinate (in) --  (-1,1) -- (1,0) coordinate (out) --  (-1,-1) -- cycle;
        \node[anchor=north,inner sep=2pt] at (0,-1) {$1$};
        \end{scope}

In this case, coordinate (-1,0) will act as west anchor and 1,0 as east. Both point will have an special name for further reference. Every pic is placed according its own origin (0,0). You can use Claudio's answer to Anchoring TiKZ pics for better positioning.

As your example was simple, I'd prefer to star with EDFA and place Source and Sink after it.

\documentclass[]{article}

% tikz
\usepackage{tikz}
\usetikzlibrary{positioning} %relative positioning

\begin{document}

\tikzset{%
    EDFA/.pic={
        \begin{scope}[scale=.5]
        \draw (-1,0) coordinate (in) --  (-1,1) -- (1,0) coordinate (out) --  (-1,-1) -- cycle;
        \node[anchor=north,inner sep=2pt] at (0,-1) {$1$};
        \end{scope}
    }
}

\begin{tikzpicture}[
block/.style={draw},
]

\draw pic (edfa) {EDFA};

\node[block, left=of edfain] (source) {Source};

\node[block, right= of edfaout] (sink) {Sink};

\draw[->] (source) -- (edfain);
\draw[->] (edfaout) -- (sink);

\end{tikzpicture}

\end{document}

I understand that your components are more complex than EDFA because for this particular case an isosceles triangle node with a label will do the work and it can be used as a node and not as a pic:

\documentclass[]{article}

% tikz
\usepackage{tikz}
\usetikzlibrary{positioning} %relative positioning
\usetikzlibrary{shapes.geometric}

\begin{document}

\begin{tikzpicture}[
    block/.style={draw},
    edfa/.style={isosceles triangle, minimum width=1cm, 
         draw, anchor=west, isosceles triangle stretches, 
         minimum height=1cm, label=-80:#1}
]

\node[block] (source) {Source};

\node[edfa=1, right=of source] (edfa) {};

\node[block, right= of edfa] (sink) {Sink};

\draw[->] (source) -- (edfa);
\draw[->] (edfa) -- (sink);

\end{tikzpicture}

\end{document}

Best Answer

Related Solutions

Diagrams – Centering Flow Chart Horizontally in LaTeX

[Tex/LaTex] Line up nested tikz enviroments or how to get rid of them

Related Question