How to use the forest package - TeX

samcarter replying to topnush

you're welcome!

topnush

@samcarter, re: [your answer](#a2169), Thank you for this amazing answer!

topnush

[5, rectangle, minimum width=0.6cm, edge label={node[mylabel]{(7,10)}}] is not far off

topnush replying to samcarter

can you set width in e.g. [5, rectangle, edge label={node[mylabel]{(7,10)}}] ?

topnush replying to samcarter

I was thinking more maximum width. So shrink the bigger ones instead of growing the smaller ones

samcarter replying to topnush

set the width equal to the height

topnush replying to samcarter

is a square possible instead of a rectangle?

samcarter replying to topnush

you can set this via the `minimum width`

samcarter replying to topnush

add `rectangle` to every node you don't want to be a circle

topnush replying to samcarter

the node with a 10 in it could be the same size as the nodes with either a single digit or nothing in it I was thinking. I mean the 10 would still fit

topnush replying to samcarter

I mean just the leaves. So all the internal nodes would still be circles

samcarter replying to topnush

if you don't want circles, don't tell the tree to use  `circle` (rectangles are the default)

samcarter replying to topnush

yes, because your content is different size

topnush

how can you make the leaves squares instead of circles?

topnush

are the circles different sizes?

topnush replying to samcarter

that's pretty amazing! Thank you

samcarter

![document.png](/image?hash=44db7bbf27e5694d9e7ac3694ad70d75787f94bba23d1ba84493d7db807b6fd4)

samcarter

Or with rotated labels:  
```  
\documentclass{standalone}
\usepackage{forest}

\tikzset{mylabel/.style={midway,font=\tiny,above,sloped}}

\begin{document}

\begin{forest}  
%label tree,
for tree={
    circle,draw,
    edge+=thick,  
    l sep=10mm,
    font=\strut\footnotesize\sffamily,
  },
 [root
   [10,edge label={node[mylabel]{(10,10)}}]
   [,phantom]
   [0,edge label={node[mylabel]{(0,10)}}]
   [,phantom]
   [,edge label={node[mylabel]{(9,9)}}
      [9, edge label={node[mylabel]{(10,10)}}]
      [, edge label={node[mylabel]{(6,6)}}
        [8, edge label={node[mylabel]{(10,10)}}]
        [5, edge label={node[mylabel]{(7,10)}}]
      ]
      [6, edge label={node[mylabel]{(7,10)}}]
   ]
   [,edge label={node[mylabel]{(3,3)}}
     [4, edge label={node[mylabel]{(5,10)}}]
     [3, edge label={node[mylabel]{(4,10)}}]
   ] 
   [,edge label={node[mylabel]{(2,2)}}
     [2, edge label={node[mylabel]{(3,10)}}]
     [1, edge label={node[mylabel]{(2,10)}}]
   ] 
   [,phantom]
   [7,edge label={node[mylabel]{(7,10)}}] 
 ]
\end{forest}

\end{document}    
```

samcarter

![document.png](/image?hash=5905156508f8f2980f7a8b370229ecb1c3a829fe6e08aba20c8e2318741c800b)

samcarter

@topnush, re: [your question](#question), Are you looking for something like this?  
```  
\documentclass{standalone}
\usepackage{forest}

\tikzset{mylabel/.style={midway,font=\tiny,anchor=center}}

\begin{document}

\begin{forest}  
%label tree,
for tree={
    circle,draw,
    s sep=20pt, 
    edge+=thick,  
    font=\strut\footnotesize\sffamily,
  },
 [root
   [10,edge label={node[mylabel]{(10,10)}}]
   [0,edge label={node[mylabel]{(0,10)}}]
   [,edge label={node[mylabel]{(9,9)}}
      [9, edge label={node[mylabel]{(10,10)}}]
      [, edge label={node[mylabel]{(6,6)}}
        [8, edge label={node[mylabel]{(10,10)}}]
        [5, edge label={node[mylabel]{(7,10)}}]
      ]
      [6, edge label={node[mylabel]{(7,10)}}]
   ]
   [,edge label={node[mylabel]{(3,3)}}
     [4, edge label={node[mylabel]{(5,10)}}]
     [3, edge label={node[mylabel]{(4,10)}}]
   ] 
   [,edge label={node[mylabel]{(2,2)}}
     [2, edge label={node[mylabel]{(3,10)}}]
     [1, edge label={node[mylabel]{(2,10)}}]
   ] 
   [7,edge label={node[mylabel]{(7,10)}}] 
 ]
\end{forest}

\end{document}  
```

topnush replying to निरंजन

done

निरंजन replying to topnush

Please add this in the question itself, so that the others can also see.

topnush replying to निरंजन

I have fixed the drawing to what it should be

topnush

that is the correct picture

topnush

![drawing.png](/image?hash=603a54570dff35083af91b798f740b1d7ad5c5f50be1a5150a25952a83ae00f2)

topnush replying to निरंजन

argh I have made an error in my drawing.. let me fix that

topnush

deleted

topnush

This is the full picture I am trying to draw

topnush

deleted

निरंजन replying to topnush

Okay

निरंजन

@topnush Just confirming, the node with number 9 is a child of the node with number 10. Is that intended?

topnush replying to निरंजन

I am not sure I can find it again but I am sure you are right. I just want the nodes to be circles. I am drawing a version to show now

निरंजन replying to topnush

This is a very common problem with package forest. :joy: I can understand the pain.

निरंजन replying to topnush

If possible, please share the reference to that answer. Also it's quite possible that someone has defined a key named `label key` in that answer itself, but if you remove that definition and keep using the key in your minimal example, your compilation is going to fail.

topnush replying to निरंजन

thanks! In my dream world the error message would have told me that directly

topnush replying to निरंजन

I copied that directly from a tex.se answer but I must have misunderstood. How do I define circle etc?

निरंजन

For visual changes, you need to show the expected output in some other visual format, then only we can try to work things out better.

निरंजन

Also `forest` environment doesn't allow blank lines. So removing the blank line from your code will give you an error-less output.

निरंजन

@topnush, re: [your question](#question), `label tree` is not a valid key in package `forest`. You should not use it. The error report suggests that very clearly.

1 Answer