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CodeReview question markdown downloader

How to have two root nodes in forest package?

How to define the default vertical distance between nodes?How to connect two parents to the same child, with parents not in the same tree?Numerical conditional within tikz keys?Relating tree nodes in forest to content in a tableHow to prevent rounded and duplicated tick labels in pgfplots with fixed precision?Drawing rectilinear curves in Tikz, aka an Etch-a-Sketch drawingHow to Add Geometric Figures to a Tree using Forest and Tikz?Line up nested tikz enviroments or how to get rid of themHow to draw a square and its diagonals with arrows?Decrease distance between nodes in tree using Forest

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty
margin-bottom:0;

2

I'm using forest to make trees. This package automates the measurements and placements of the nodes (which is great!!) I want a node of a forest-tree to be accommodated in two trees.

Have a look at this code.

documentclassstandalone
usepackagetikz

begindocument
 begintikzpicture
 draw (1,1) -- (1,-2) node[below]a;
 draw (1,1) -- (3,-2) node[below]b;
 draw (1,1) -- (-1,-2) node[below]c;
 draw[dotted] (5,1) -- (3,-2);
 draw (5,1) -- (5,-2) node[below]d;
 draw (5,1) -- (7,-2) node[below]e;
 endtikzpicture
enddocument

This code produces -

This is exactly what I want. Now let's shift to forest. I don't want placement-calculations to come in the picture. I want the above tree to be automated. This is a pseudo-forest code, which I want to make workable. In this code there are two trees (which itself is an alien thing for forest) & it has one ambiguous node occurring in both of them. Is it possible?

documentclassstandalone
usepackage[linguistics]forest

begindocument
 beginforest
 [[c]
 [a]
 b%Special brackets to have this node in both the trees
 ]%This bracket should end the first tree

 [%This bracket should start a new tree
 b%Special brackets to have this node in both the trees
 [d]
 [e]
 ]
 endforest
enddocument

PS - If possible I also want the dotted line, but it is absolutely optional.

tikz-pgf forest

share|improve this question

asked Oct 1 at 13:21

NiranjanNiranjan

81411 silver badge1616 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Related/duplicate: Multi-rooted Tree-like Structures and Nodes with Multiple Parents in LaTeX. Since multidominant trees aren't formally trees, tree drawing packages can't deal with them automatically.
  
  – Alan Munn
  Oct 1 at 13:32
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks this helped me, I understand that tree drawing packages are not meant to draw such structures, but is it really hard to think of this automation? I mean if it is possible to accommodate such changes by tweaking our formalism a bit, won't it be more productive?
  
  – Niranjan
  Oct 1 at 13:40
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Also this is not helpful for two trees in one environment.
  
  – Niranjan
  Oct 1 at 13:45
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Well one problem is that you can't represent them with a nested bracketed structure, so the first problem would be to figure out a syntax that would allow you to specify the multidominance. For the two trees problem you can just make one tree with empty branches and root node dominating the two (sub-)trees.
  
  – Alan Munn
  Oct 1 at 13:45
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  How to generate empty branches?
  
  – Niranjan
  Oct 1 at 13:52
  

  
  
  
  

 | 
show 1 more comment

2

I'm using forest to make trees. This package automates the measurements and placements of the nodes (which is great!!) I want a node of a forest-tree to be accommodated in two trees.

Have a look at this code.

documentclassstandalone
usepackagetikz

begindocument
 begintikzpicture
 draw (1,1) -- (1,-2) node[below]a;
 draw (1,1) -- (3,-2) node[below]b;
 draw (1,1) -- (-1,-2) node[below]c;
 draw[dotted] (5,1) -- (3,-2);
 draw (5,1) -- (5,-2) node[below]d;
 draw (5,1) -- (7,-2) node[below]e;
 endtikzpicture
enddocument

This code produces -

This is exactly what I want. Now let's shift to forest. I don't want placement-calculations to come in the picture. I want the above tree to be automated. This is a pseudo-forest code, which I want to make workable. In this code there are two trees (which itself is an alien thing for forest) & it has one ambiguous node occurring in both of them. Is it possible?

documentclassstandalone
usepackage[linguistics]forest

begindocument
 beginforest
 [[c]
 [a]
 b%Special brackets to have this node in both the trees
 ]%This bracket should end the first tree

 [%This bracket should start a new tree
 b%Special brackets to have this node in both the trees
 [d]
 [e]
 ]
 endforest
enddocument

PS - If possible I also want the dotted line, but it is absolutely optional.

tikz-pgf forest

share|improve this question

asked Oct 1 at 13:21

NiranjanNiranjan

81411 silver badge1616 bronze badges

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Related/duplicate: Multi-rooted Tree-like Structures and Nodes with Multiple Parents in LaTeX. Since multidominant trees aren't formally trees, tree drawing packages can't deal with them automatically.
  
  – Alan Munn
  Oct 1 at 13:32
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks this helped me, I understand that tree drawing packages are not meant to draw such structures, but is it really hard to think of this automation? I mean if it is possible to accommodate such changes by tweaking our formalism a bit, won't it be more productive?
  
  – Niranjan
  Oct 1 at 13:40
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Also this is not helpful for two trees in one environment.
  
  – Niranjan
  Oct 1 at 13:45
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Well one problem is that you can't represent them with a nested bracketed structure, so the first problem would be to figure out a syntax that would allow you to specify the multidominance. For the two trees problem you can just make one tree with empty branches and root node dominating the two (sub-)trees.
  
  – Alan Munn
  Oct 1 at 13:45
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  How to generate empty branches?
  
  – Niranjan
  Oct 1 at 13:52
  

  
  
  
  

 | 
show 1 more comment

I'm using forest to make trees. This package automates the measurements and placements of the nodes (which is great!!) I want a node of a forest-tree to be accommodated in two trees.

Have a look at this code.

documentclassstandalone
usepackagetikz

begindocument
 begintikzpicture
 draw (1,1) -- (1,-2) node[below]a;
 draw (1,1) -- (3,-2) node[below]b;
 draw (1,1) -- (-1,-2) node[below]c;
 draw[dotted] (5,1) -- (3,-2);
 draw (5,1) -- (5,-2) node[below]d;
 draw (5,1) -- (7,-2) node[below]e;
 endtikzpicture
enddocument

This code produces -

This is exactly what I want. Now let's shift to forest. I don't want placement-calculations to come in the picture. I want the above tree to be automated. This is a pseudo-forest code, which I want to make workable. In this code there are two trees (which itself is an alien thing for forest) & it has one ambiguous node occurring in both of them. Is it possible?

documentclassstandalone
usepackage[linguistics]forest

begindocument
 beginforest
 [[c]
 [a]
 b%Special brackets to have this node in both the trees
 ]%This bracket should end the first tree

 [%This bracket should start a new tree
 b%Special brackets to have this node in both the trees
 [d]
 [e]
 ]
 endforest
enddocument

PS - If possible I also want the dotted line, but it is absolutely optional.

tikz-pgf forest

share|improve this question

asked Oct 1 at 13:21

NiranjanNiranjan

81411 silver badge1616 bronze badges

documentclassstandalone
usepackagetikz

begindocument
 begintikzpicture
 draw (1,1) -- (1,-2) node[below]a;
 draw (1,1) -- (3,-2) node[below]b;
 draw (1,1) -- (-1,-2) node[below]c;
 draw[dotted] (5,1) -- (3,-2);
 draw (5,1) -- (5,-2) node[below]d;
 draw (5,1) -- (7,-2) node[below]e;
 endtikzpicture
enddocument

documentclassstandalone
usepackage[linguistics]forest

begindocument
 beginforest
 [[c]
 [a]
 b%Special brackets to have this node in both the trees
 ]%This bracket should end the first tree

 [%This bracket should start a new tree
 b%Special brackets to have this node in both the trees
 [d]
 [e]
 ]
 endforest
enddocument

share|improve this question

asked Oct 1 at 13:21

NiranjanNiranjan

81411 silver badge1616 bronze badges

share|improve this question

asked Oct 1 at 13:21

NiranjanNiranjan

81411 silver badge1616 bronze badges

asked Oct 1 at 13:21

NiranjanNiranjan

81411 silver badge1616 bronze badges

asked Oct 1 at 13:21

NiranjanNiranjan

81411 silver badge1616 bronze badges

1 Answer
1

active

oldest

votes

5

Mutlidominant trees aren't trees, so there is no good way to automate them with tree drawing packages like forest or tikz-qtree. But there are ways to create the same effect manually (which I understand is not what you would like). Here's a sample. The second tree is more symmetrical, but at greater complexity since it involves a phantom third centre node to get the shared node aligned properly.

documentclassarticle
usepackage[linguistics]forest
begindocument
beginforest
[,phantom [A [B ][C,name=C]] [D,name=D [,phantom][F]]]
draw[dotted] (C.north) -- (D.south);
endforest

beginforestwhere n children=0tier=T
[,phantom [A,name=A [B, ][,phantom]][,phantom [C,name=C ]][D,name=D [,phantom][F]]]
draw (C.north) -- (A.south);
draw[dotted] (C.north) -- (D.south);
endforest

enddocument

share|improve this answer

answered Oct 1 at 14:10

Alan MunnAlan Munn

175k3030 gold badges448448 silver badges741741 bronze badges

add a comment
 | 

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5

Mutlidominant trees aren't trees, so there is no good way to automate them with tree drawing packages like forest or tikz-qtree. But there are ways to create the same effect manually (which I understand is not what you would like). Here's a sample. The second tree is more symmetrical, but at greater complexity since it involves a phantom third centre node to get the shared node aligned properly.

documentclassarticle
usepackage[linguistics]forest
begindocument
beginforest
[,phantom [A [B ][C,name=C]] [D,name=D [,phantom][F]]]
draw[dotted] (C.north) -- (D.south);
endforest

beginforestwhere n children=0tier=T
[,phantom [A,name=A [B, ][,phantom]][,phantom [C,name=C ]][D,name=D [,phantom][F]]]
draw (C.north) -- (A.south);
draw[dotted] (C.north) -- (D.south);
endforest

enddocument

share|improve this answer

answered Oct 1 at 14:10

Alan MunnAlan Munn

175k3030 gold badges448448 silver badges741741 bronze badges

add a comment
 | 

5

Mutlidominant trees aren't trees, so there is no good way to automate them with tree drawing packages like forest or tikz-qtree. But there are ways to create the same effect manually (which I understand is not what you would like). Here's a sample. The second tree is more symmetrical, but at greater complexity since it involves a phantom third centre node to get the shared node aligned properly.

documentclassarticle
usepackage[linguistics]forest
begindocument
beginforest
[,phantom [A [B ][C,name=C]] [D,name=D [,phantom][F]]]
draw[dotted] (C.north) -- (D.south);
endforest

beginforestwhere n children=0tier=T
[,phantom [A,name=A [B, ][,phantom]][,phantom [C,name=C ]][D,name=D [,phantom][F]]]
draw (C.north) -- (A.south);
draw[dotted] (C.north) -- (D.south);
endforest

enddocument

share|improve this answer

answered Oct 1 at 14:10

Alan MunnAlan Munn

175k3030 gold badges448448 silver badges741741 bronze badges

add a comment
 | 

Mutlidominant trees aren't trees, so there is no good way to automate them with tree drawing packages like forest or tikz-qtree. But there are ways to create the same effect manually (which I understand is not what you would like). Here's a sample. The second tree is more symmetrical, but at greater complexity since it involves a phantom third centre node to get the shared node aligned properly.

documentclassarticle
usepackage[linguistics]forest
begindocument
beginforest
[,phantom [A [B ][C,name=C]] [D,name=D [,phantom][F]]]
draw[dotted] (C.north) -- (D.south);
endforest

beginforestwhere n children=0tier=T
[,phantom [A,name=A [B, ][,phantom]][,phantom [C,name=C ]][D,name=D [,phantom][F]]]
draw (C.north) -- (A.south);
draw[dotted] (C.north) -- (D.south);
endforest

enddocument

share|improve this answer

answered Oct 1 at 14:10

Alan MunnAlan Munn

175k3030 gold badges448448 silver badges741741 bronze badges

documentclassarticle
usepackage[linguistics]forest
begindocument
beginforest
[,phantom [A [B ][C,name=C]] [D,name=D [,phantom][F]]]
draw[dotted] (C.north) -- (D.south);
endforest

beginforestwhere n children=0tier=T
[,phantom [A,name=A [B, ][,phantom]][,phantom [C,name=C ]][D,name=D [,phantom][F]]]
draw (C.north) -- (A.south);
draw[dotted] (C.north) -- (D.south);
endforest

enddocument

share|improve this answer

answered Oct 1 at 14:10

Alan MunnAlan Munn

175k3030 gold badges448448 silver badges741741 bronze badges

answered Oct 1 at 14:10

Alan MunnAlan Munn

175k3030 gold badges448448 silver badges741741 bronze badges

answered Oct 1 at 14:10

Alan MunnAlan Munn

175k3030 gold badges448448 silver badges741741 bronze badges