Here are some ways of using Tree Plugin's %TREEVIEW% tag.

Note: The links under TreeTop (included from Heading Outline Sample) are not functional. They are only for demonstrational purpooses only.
Note: The children of each tree are presented in alphabetical order which is why a "Three" topic always preceeds a "Two" topic.

Lists

Unnumbered List


%TREEVIEW{topic="WebHome" topic="TreeTop" 
formatting="ullist"}%

TreeTop

TheOne
- OneOne
  - OneOneOne
- OneTwo
  - OneTwoOne
  - OneTwoTwo
TheThree
TheTwo

Numbered List


%TREEVIEW{ topic="TreeTop" 
formatting="ollist"}%

TreeTop

TheOne
1. OneOne
  1. OneOneOne
2. OneTwo
  1. OneTwoOne
  2. OneTwoTwo
TheThree
TheTwo

Outlines

Regular Outline


%TREEVIEW{topic="TreeTop" formatting="outline"}%

This is also the default for the tag (when foramtting is not set).

TreeTop
1 TheOne
1.1 OneOne
1.1.1 OneOneOne
1.2 OneTwo
1.2.1 OneTwoOne
1.2.2 OneTwoTwo
1.2.2.1 OneTwoTwoOne
1.2.2.2 OneTwoTwoThree
1.2.2.3 OneTwoTwoTwo
2 TheThree
2.1 ThreeOne
2.2 ThreeThree
2.2.1 ThreeThreeOne
2.3 ThreeTwo
3 TheTwo

Bookview Outline


%TREEVIEW{topic="TreeTop" bookview="on"}%

Displays tree in bookview mode. See Tree Bookview Outline Sample.

Outline with summaries

%TREEVIEW{topic="WebHome" topic="TreeTop" 
formatting="outline" format="  $outnum $topic
<blockquote>$summary</blockquote>"}%

TreeTop

Some summary text.

1 TheOne

Summary for The One?

1.1 OneOne

Summary for One One?

1.1.1 OneOneOne

Summary for One One One?

1.2 OneTwo

Summary for One Two?

1.2.1 OneTwoOne

Summary for One Two One?

1.2.2 OneTwoTwo

Summary for One Two Two?

1.2.2.1 OneTwoTwoOne

Summary for One Two Two One?

1.2.2.2 OneTwoTwoThree

Summary for One Two Two Three?

1.2.2.3 OneTwoTwoTwo

Summary for One Two Two Two?

2 TheThree

Summary for The Three?

2.1 ThreeOne

Summary for Three One?

2.2 ThreeThree

Summary for Three Three?

2.2.1 ThreeThreeOne

Summary for Three Three One?

2.3 ThreeTwo

Summary for Three Two?

3 TheTwo

Summary for The Two?

Aligned outline with zooming

%TABLE{tableborder="0"}%
%TREEVIEW{formating="outline" topic="TreeTop" 
header="| out | topic |" format="| [[$urltreetopic=$topic][$outnum]] </a> 
| $spacetopic |"}%

In the rendered version, clicking on the outline numbers will display that topic's subtree.

out	topic
	Tree Top
1	The One
1.1	One One
1.1.1	One One One
1.2	One Two
1.2.1	One Two One
1.2.2	One Two Two
1.2.2.1	One Two Two One
1.2.2.2	One Two Two Three
1.2.2.3	One Two Two Two
2	The Three
2.1	Three One
2.2	Three Three
2.2.1	Three Three One
2.3	Three Two
3	The Two

Headings


%TREEVIEW{topic="TreeTop" formatting="hlist"}%

See Heading Outline Sample.

Nested tables

You can also group branches within tables, like these three examples.

Colored Nested tables

This is neat....

%TREEVIEW{topic="TreeTop" formatting="coloroutline:#ffeeff,#eeffee,#ffffee,#eeeeff,#ffeeee,#eeffff"
format="  $count [[$web.$topic][$spacetopic]]<br>"
formatbranch="<table cellspacing=5><tr><td width=\"20%\"> $parent
</td><td bgcolor=$level>$children</td></td></tr></table>"}%

1 Tree Top

1 The One

1 One One

1 One One One

2 One Two

1 One Two One

2 One Two Two

1 One Two Two One
2 One Two Two Three
3 One Two Two Two

2 The Three

1 Three One

2 Three Three

1 Three Three One

3 Three Two

3 The Two

Nested tables, black brackets

This is kinda neat....

%TREEVIEW{topic="WebHome" formatting="outline" format=" 
$count [[$web.$topic][$spacetopic]]<br>"
formatbranch="<table cellspacing=5><tr><td width=\"20%\"> $parent 
</td><td bgcolor=black width=1></td><td bgcolor=>$children</td></td></tr></table>"}%

1 Tree Top

1 The One

1 One One

1 One One One

2 One Two

1 One Two One

2 One Two Two

1 One Two Two One
2 One Two Two Three
3 One Two Two Two

2 The Three

1 Three One

2 Three Three

1 Three Three One

3 Three Two

3 The Two

Nested tables, colored brackets

%TREEVIEW{topic="TreeTop"
formatting="coloroutline:#AA6666,#66AA66,#6666AA"
format="  $count [[$web.$topic][$spacetopic]]<br>"
formatbranch="<table cellspacing=5><tr><td width=\"%20\"> $parent
</td><td bgcolor=$level width=1></td><td bgcolor=#eeeeee>$children</td></td></tr></table>"}%

1 Tree Top

1 The One

1 One One

1 One One One

2 One Two

1 One Two One

2 One Two Two

1 One Two Two One
2 One Two Two Three
3 One Two Two Two

2 The Three

1 Three One

2 Three Three

1 Three Three One

3 Three Two

3 The Two

Image Trees (new in 0.25!)

version 0.25

Use the imageoutline formatting attribute to add images to the tree formats. This formatting style was added mainly to provide thread-like presentation of a topic tree.

The general format is: imageoutline: mode : images : imageformat

Thread-like trees

%TREEVIEW{topic="TreeTop" stoplevel="3" formatting="imageoutline:thread"}%

TreeTop

TheOne

OneOne

OneTwo

TheTwo

Because of defaults, this is the same as:

%TREEVIEW{topic="TreeTop" stoplevel="3"
formatting="imageoutline:thread:I.gif,white.gif,T.gif,L.gif:<img src='$image' border=0>"
format="<table border=0 cellspacing=0 cellpadding=0><tr><td nowrap>$images</td><td style={font-size:12pt}>
$topic</td></tr></table>"}%

Go ahead swap in your own images....

Expanded thread-like trees

%TREEVIEW{topic="TreeTop" stoplevel="3" formatting="imageoutline:threadexp"}%

Note: Leaves are delineated by plain right angles; opened branches, by empty boxes; and 'unopened' branches (eg, the OneTwoTwo topic) which have more subtopics underneath them, delineated by the +-icon._

Because of defaults, this is the same as:

%TREEVIEW{topic="TreeTop" stoplevel="3"
formatting="imageoutline:threadexp:I.gif,white.gif,T.gif,L.gif,oT.gif,oL.gif,pT.gif,pL.gif:<img src='$image' border=0>"
format="<table border=0 cellspacing=0 cellpadding=0><tr><td nowrap>$images</td><td style={font-size:12pt}>
$topic</td></tr></table>"}%

If you need to make changes, go for it.

If you need users to be able to expand closed tree nodes, you'll have to more fancy Java Script? than I can deal with at the moment. You could also try this as a functional but clunky alternative (clicking any image, will go to that topic's tree view):

%TREEVIEW{topic="TreeTop" stoplevel="2" formatting="imageoutline:threadexp"
format="<table border=0 cellspacing=0 cellpadding=0><tr><td nowrap>
[[$urltreetopic=$topic\"] [$images]]</td><td style={font-size:12pt}> $topic</td></tr></table>
"}%

Folder trees

These are pretty ugly (the default relies on Apache icons). But if you need it...

%TREEVIEW{topic="TreeTop" stoplevel="3"
formatting="imageoutline:folder"}%

Because of defaults, this is the same as:

%TREEVIEW{topic="TreeTop" stoplevel="3"
formatting="imageoutline:folder:white.gif,/icons/generic.gif,/icons/folder.open.gif,/icons/folder.gif:<img src='$image' border=0>"
format="<table border=0 cellspacing=0 cellpadding=0><tr><td nowrap height=35>$images</td><td> $topic</td></tr></table>"}%

Go ahead swap in your own images....

Single Image

I'm not sure why this would be interesting.....

%TREEVIEW{topic="TreeTop" stoplevel="3"
formatting="imageoutline:single"}%

TreeTop

TheOne

OneOne

OneTwo

TheTwo

Because of defaults, this is the same as:

%TREEVIEW{topic="TreeTop" stoplevel="3"
formatting="imageoutline:single:/icons/ball.red.gif:<img src='$image' border=0>"
format="$images $topic<br>"}%

-- TWiki:Main.SlavaKozlov - 28 Feb 2002
-- TWiki:Main.MartinRaabe - 16 Jan 2003